OWNER'S MANUAL INDEX Machine Serial Number:

Date Shipped: Band Saw Machine Tool MODEL F-1620-A CNC

Contents of this binder:

X Material Safety Data Sheets

X Machine Operation and Maintenance Manual . . . . . . . . . . . . . . . . . . . . . . . . 900427

X Safety Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900401

X Band Saw Blade Selection and Application Manual . . . . . . . . . . . . . . . . . . . . 900409

X Drive Gear Reduction Bulletin, Cone Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . FL-1

X Barfeed Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 447140

X Machine Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 446817

X Metering Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 010370

X Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 448170

X Blade Tension Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 446915

X Guide Assembly 1¼" Blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 446807

X Blade Brush Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 610805

Hydraulic Chip Conveyor Layout (Option) . . . . . . . . . . . . . . . . . . . Drawing 447350

X System Hydraulics Diagram (Basic Machine) . . . . . . . . . . . . . . . . . . Drawing 019632

X System Electrical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 020452

Barfeed Holddown Layout (Option) . . . . . . . . . . . . . . . . . . . . . . . . Drawing 1014700

Saw Vise Holddown (Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing 447118

X Door Safety Interlock Key

X Operation VCD

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I INTRODUCTIONEfficient performance of any machine tool isthe right combination of:1) Machine, matched to the work load.2) Tooling, matched to the work piece.3) Operator, trained and conscientious.

W. F. Wells provides the machine tool.Consult a reliable blade supplier for theproper tooling, matched to the work piece.

Operators must not use this machine withoutfirst reading through the manuals in thisbinder. The time it takes will be more thanmade up in man hours and machinedown-time saved.

This manual, together with other manuals inthis binder, explains installation, operationand maintenance of W. F. Wells ModelF-1620-A CNC automatic band saw machinetool. The purpose is to thoroughly familiarizeoperators with proper procedures to get thebest performance and dependability from themachine tool.

As soon as any machine arrives on thereceiving dock, give it a thorough visualinspection to assure no damage occurredduring transport.Normally, if the machine crating is in goodcondition the machine is in good condition.If the shipping crate shows damage or signsof repair, note it on the waybill. Uncrate andinspect the machine while the driver is still atthe dock, or refuse it.

II INSTALLATION

Give careful consideration to the machineinstallation site.The plant engineer must establish work flowto and from the machine. The machine mustbe level and anchored for proper, efficient,trouble free operation.The operator must have room to perform hisjob safely. The work area must beuncluttered and well-lighted. Maintain

temperature in the machine area at a level toprovide maximum operator comfort. If it isnot, machine operators will compensate inclothing or move about, creating a conditionof hazard.

A. Site Preparation.See the contents page for the machine floorlayout print, with recommended anchoringprocedure.Establish machine location in relation tomaterial handling work flow to the machineand related production functions.Recommended anchoring procedure isanchor bolts set in concrete and the machineset over the anchor bolts, through holes inthe machine base.

1. Establish the intersection of themachine blade line of travel to the stationaryvise line according to the plant engineer'slayout and prepare the foundation.

2. If adequate foundation exists, layout anchor bolt locations with 12" long crosslines and drill anchor bolt holes into theconcrete 6-8" deep and 4-6" in diameter.See the contents page for optionalequipment and prepare anchoring the entireassembly as one unit.

3. Place the recommended bolt andsleeve assembly in the hole with bolt threadscentered on the cross lines and extendingabove the floor line sufficient to receive themachine base. Fill around the assembly withgrout or concrete. The shoulder of thesleeve must be at the floor line, allowing forlater bolt to hole alignment. Allow concrete tocure fifteen days before machine installation.

B. Machine Assembly.

1. Place steel plate on the foundationin screw jack locations.Turn screw jacks on the four outside cornersof the machine base down for leveling. Turnthe center jacks up, out of the way.

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2. Set the sawing unit frame over theanchor bolts in the foundation, screw jackson the steel plate.

Vise CylindersThe saw and barfeed cylinders have beenremoved for shipping. The followinginformation is for both cylinders.

Attach the cylinder to the machineusing four 3/8-16 x 1" hex head screws. Thecylinders should be marked “saw bed” or“barfeed” respectively. The saw vise cylinderhas the emergency stop bracket bolted to it.

To attach the coupling to the end ofthe cylinder rod. Raise the saw head.Slide the vise assembly to the end of thebed. Tighten the cylinder rod to the couplingusing a 7/8" wrench on the cylinder rod flatsand a 1½” wrench (or Channel Locks) on thecoupling.

Connect the hydraulic hoses to thecylinder.

Emergency Stop CableThe emergency stop cable is an

added safety feature. It is designed toprotect the operator, or any body who comesclose to the machine, from being pinched orcrushed by the moving barfeed.

Run the red cable though the twopulleys on the back of the machine andconnect it to the bracket on the end of thesaw vise cylinder. Remove any slack and tighten the cable. Pull the cable to make sure it is working.Push the reset button on the cable switch toreactivate the feature.

C. Pre-operation Check-out.Do not attempt to operate this machinebefore completing the pre-operationcheck-out.

1. Check fluid levels and filters.

See maintenance section IV, page 12.

2. Electric hook-up. See maintenancesection IV, page 21, and motor rotationdirection after hook-up.

D. Leveling and Anchoring.This machine must be level for pre-

cision sawing. Unauthorized moving orbumping the machine alters the setup,causing inaccurate sawing. Level the machine. Flat material, laid across the optionalinfeed conveyor, barfeed carriage andmachine bed up to the blade line must be flatwith no gaps between the material and themachine. A machine not being level is amajor cause of getting crooked cuts. See part "A," site preparation, for properfoundation.Use steel plate under each leveling screwjack to prevent the jacks from drilling intoconcrete during years of use.

1. Remove support blocks in the sawbed to assure an accurate level reading.

2. Spread the guide arms and openthe vise jaws.Place an accurate machine level on the sawbed between the vise jaws. Lower the highend of the saw bed. Use only the outsidefour corner screw jacks for leveling.

3. Use a straightedge, with level ontop, along the infeed table roller surface andsaw bed. Bring the table to level with thesaw bed.

4. Run the level out over the infeedtable. Bring the table to level with the sawbed.

5. Check all level readings. Turnscrew jacks between the outside four cornerjacks fully down on steel plate for evenweight distribution.

6. Tighten all screw jack lock nuts and

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check all level readings.

7. Tighten nuts on the anchor boltsthrough the saw frame.

8. Dam around each screw jack andpour grout up to the base of the machine toprevent shifting.

III SAFETY and OPERATION

Few safety devices benefit the carelessworker. Safety is an attitude either acceptedor rejected by the operator.

A. Safety.For the operator who abides by his localshop safety practices add the following,applying to this machine.

1. Lock or tag out the electric discon-nect during routine maintenance.

2. Replace guards and safety devicesremoved during maintenance, before return-ing the machine to service.

3. A qualified assistant operator neednot be at the controls of this machine whenthe regular operator is not. Authorize otherworkers in the area to shut down themachine with the Emergency Stop control inthe event of conditions of hazard.

4. Do not allow casual climbing orleaning on the machine. Slippery coolantcovered surfaces are not detected until toolate to prevent the slip.

5. Wear heavy protective glovesduring blade change for positive control ofthe blade.Guard against all other body contact withthe blade. Never wear gloves whileoperating this or any machine tool.

6. Always wear eye protectionwhen operating this equipment.

7. Keep hands away from the bladeafter it is installed.

B. Operator Controls.

CNC SAW OPERATIONThe following is a quick start guide to begincutting material within minutes after applyingmachine power. This machine is designedusing state of the art technology for highquality cut parts. The color touch screenoffers simple operation with operatorprompts and diagnostics directing new andexperienced operators like no other sawingmachine. Most screens have help pagesassociated with them for new operators thatprovide the necessary information to operatethe machine without the written manual. Theattached manual provides advanced helpand documentation to assist the touchscreen prompts and help pages. All faultsand prompts are logged with time and datestamps to trace machine operation history.More to follow in the operation manual.

1.) After wiring the machine, leveling,connecting the vise cylinders, and turningon the disconnect, the machine is ready tooperate.

2.) Push the hydraulic start. The machinehydraulics will start. Be sure the E-stop ispulled out and the stop cable is reset.

3.) The home carriage screen will appearafter the hydraulics start. Move the carriageforward until the “home OK” appears.

4.) Put the blade on the machine and thentension it.

5.) The machine is now ready to make amanual cut or an automatic cut. Theoperator prompts and help screens will guidefrom this point as well as the followingdetailed instructions.

Note: The pages after page 20 in this

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manual show each touch screen and containthe help screen for each as well. Theoperator should look at each screen andread the help instructions before operation.

The green dot on the blade tension dial isreference for proper blade tension.The needle must always be at the green dotduring sawing to maintain blade tension.See page 17 to adjust blade tension to blademanufacturer specifications.Cutting force dial is reference for blade force

against the work piece.

Turn the sawing force control right or left toincrease or decrease sawing force on thework piece.

Two metering valves, one in each guide armjust above the blade, monitor the sawingforce.Carefully determine sawing force. It is a very

important factor.For fast, smooth sawing and lower cost percut, request a reliable blade supplier maketest cuts on the machine and the work piecewith his recommended blades.Normally a thin section of work requires alight sawing force and a wide section greaterforce.However, as the blade guides spread widerfor bigger stock, a longer distance betweenthe guides, the blade loses some of itsrigidity, or blade beam strength.On wide stock use a lighter sawing force anduse only new blades which require less forceto make a satisfactory cut. Applying moresawing force to penetrate a wide work piececauses blade run out--a crooked cut in thework piece.As blades dull sawing wide work, replacethem with a sharp blade.Set dulled blades aside for sawing smallerwork where the short span between theguides provides greater saw blade beamstrength, rigidity, and makes cuts withintolerance. Follow blade manufacturerinstructions for breaking in a new blade.For more details on sawing force, see BladeSelection Manual 900409 in this binder.

Saw head approach feed control adjusts sawhead feed down to the work piece.This control valve fully closed, the saw headwill not move.The control fully open, the saw head willcome down at it's top speed. At the point theblade contacts the work piece and beginssawing, the dual hydraulic sawing forcesystem takes over.

Guide Arm Positioning.When positioning the blade guide arm makecertain the area under both arms is clear ofobstruction.The right guide arm and vise jaw stay at theright side of the saw bed, next to the drivewheel.The left guide arm and vise jaw adjust towork piece size.

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For maximum safety and for support of theblade while sawing, move the left guide armclose to, but not touching the left vise jaw.Allow a half inch extra space to open thevise jaw.To move the guide arm, loosen the handlever above the guide arm, releasing theclamp. Slide the arm to place and tightenthe hand lever.

C. Operating Sequence.

Do not operate this machine before studyingmanuals in this binder.Follow the sequence closely, so it isautomatic as you become familiar with themachine.Blade installation procedure is in the mainte-nance section under mechanicaladjustments.

1. Move the blade guide arm far left.2. Set all controls to Off, Stop and Manu-

al.3. Switch on the electric disconnect. 4. Start the hydraulic pump.5. Raise the saw head.6. Tension the saw blade.7. Adjust the machine to the work per

part "B", clearance for blade and guide arm,number of pieces, length and any optionalequipment.

8. Open the vises.

9. Switch the machine mode to manual.

10. Move the work piece under the bladefor a trim cut.

11. Adjust clamping force for the workpiece and clamp the vise jaws. If there areselectors for optional holddowns or for anoutboard vise, select "Clamp" on the selectorswitch to enable them for automatic opera-tion. If any of the outboard vises orholddowns are not being used, manuallymove them to a position as to not interferewith the automatic operation of the machine,

and select "Off" on their respective switches.If an outboard vise or a holddown is used,and the trim-cut material is too short toclamp, leave the outboard selectors in the"Off" position until the Auto cycle pushes thestock out from under the holddown. Thenselect "Clamp".

12. Start the saw blade and adjust bladespeed for the work piece.

13. Adjust sawing force and close thefeed control valve.

14. Press the saw head feed control andopen the approach feed control valve slightlyto feed the blade into the work piece slowly.

15. Monitor the chips, thin and curled.Adjust the sawing force.

16. Switch the barfeed control fromManual to Auto while making the first trimcut. The machine can be placed in Automode operation from a stand still by:

A) Selecting "Auto" on the mode switch.

B) Clamping the saw vise.

C) Starting the blade.

D) Pushing "Cutting Head Lower". The ma-chine will now cycle automatically.

17. The machine will automatically sawand feed a pre-set number of pieces, or, theout of stock limit switch senses the end ofstock passing through the barfeed. One orthe other will shut down the machine.

If the 2 or 3 stroke option is used, a shortdelay will be noticed while the carriage viseis clamping. This allows time for the out ofstock limit to be made.If the counter, or limit switch are not usedand manual shut down is necessary, turn themode selector to "Manual". This locks out all

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cycles except the saw head. The saw willcomplete the cut, return to the raisedposition and the system will shut down, justas the machine functions with a manual cut.

18. Open the vise jaws and move thework as necessary.

19. Shut down the machine with theEmergency Stop control.

D. Trouble Shooting.Common band sawing problems listed

here give instructions for correcting theproblem.Consider a problem carefully.Get at the underlying cause of a problemrather than remedy a series of side effects.

1. Scale on the work piece.Hot-rolled steel will have a degree of millscale. On low carbon steel the scale doesnot affect sawing rates, but the scale dullsthe saw blade teeth. Remove scale from thesawing area.

2. Hard surfaces.Torch cutting and improper grinding somesteel creates a case-hardened shell a fewthousandths of an inch thick. Sawingthrough it will dull saw blade teeth. Saw andchange blades as they dull is the only solu-tion, until the hardened area saws through.

3. Crooked sawing.If a new blade saws crooked, or begins tosaw straight but after several cuts starts tosaw crooked and results are worse with eachcut, see the above paragraphs, the bladeselection manual and the maintenancesection on sawing force.A machine not being level is a major causeof getting crooked cuts. See leveling andanchoring section, page 4, for moreinformation.

4. Broken blades.Check to see if blades are breaking at the

weld. Automatic blade welders will get out ofadjustment, or an inexperienced welderoperator may improperly anneal the weld.

If this is not the problem, see the mainte-nance section on sawing force and bladewheel alignment.

5. Stripped teeth.This is usually caused by improper sawingforce and blade speed.See the blade selection manual, and themaintenance section for a sawing forcecheck.

6. Poor blade life.Blade speed too fast for the work piece isthe usual cause of poor blade life. See para-graphs 1 and 2 in this section.

7. Erratic saw head feed.Uncontrollable saw head feed into the workpiece can be:

a) Defective blade welding, defective weldgrinding, blade teeth points stripped orwrong blade for the work piece.

b) Lubrication, section IV.

c) Leveling and anchoring, sec. II.

d) Blade guide clearance, blade linkage ormetering valve. See maintenance section IV.

e) If erratic feed is still a problem, look forbrass frame thrust screw excessive wear.Brass marks front and back of the left postthe saw head rides on, or brass dust at thebase of the post means the machine is notlevel, or thrust screws are too tight againstthe post.

1) Loosen lock nuts holding the thrustscrews, front and back of the left post frame.Remove the thrust screws.

2) File the post contour from the face of the

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thrust screws.

3) Turn the rear screw in first, bringing it upto the column. Push gently on the frame tofeel contact with the post.

4) Hold the frame with the rear screwagainst the post. Turn the front screw to thepost, lightly, then back it off cTH turn. cTH

turn is the required .008 clearance betweenthe post and screws in the frame. 5) Tighten the lock nuts and check the sawhead for smooth feed.

8. Saw head stall.If the blade comes to the work piece andstarts the cut but seems to float withoutsawing, check the following malfunctions. a) Make sure the blade is sharp, and theproper blade for the work piece. Too muchsawing force applied to a small tooth bladeon a wide work piece fills saw tooth gulletsbefore the blade clears the work piece toempty the gullets.Chips locked in the tooth gullet, still in theblade kerf, force teeth tips up away from thecut, causing the blade to float through thekerf. Change the blade to one with fewerteeth and larger gullets, or use less sawingforce to form smaller chips, at the risk ofheating the blade to the point of hardeningthe work piece.

b) Monitor the sawing force.Use only 30 to 50 pounds of sawing forceand use the proper blade for the work piece.

c) Look for a hydraulic line kink from theblade guides back to the control console,limiting hydraulic fluid flow from the meteringvalve to the control valve.

d) Look for dirt lodged in the blade guides,preventing the metering valve from function-ing. Keep the guides clean. Dirt and chipsblocking the metering valve linkage forcesthe metering valve closed and the saw head

will not move, or come down only slowly.See the maintenance section for a bladeguide inspection.

e) Silt will by-pass a plugged hydraulic fluidfilter and accumulate in the metering valve.

Check the hydraulic fluid reservoir for amilky-white color. Water or coolant in thefluid will contaminate the entire system.See hydraulic fluid level and sawing force inthe maintenance section.

9. Saw blade stall.If the blade jams in the cut it is either thewrong blade for the work piece, too muchsawing force for the blade or blade tension isimproper.Correct the sawing practice.Wait five minutes and press the motor starterreset control. If the blade stalls with themotor running, shut the machine down. Freethe blade from the kerf and tension the bladeproperly. Rotate the work piece a fewdegrees so the blade will not hang up in thesame kerf.

10. All system stall.The hydraulic pump motor is thermal over-load protected to shut down the system if themotor overheats. Let the motor cool fiveminutes and press the reset control. Alsosee electric maintenance section "D."

11. Saw head drift.It is normal for the saw head to drift downwhile sitting idle for a time.Remove all work from the vise jaws, toolsand other material from the work bed at theend of each shift.Unauthorized machine use or drift down, theblade coming into contact with material left inits path, may destroy the blade and thematerial.

IV MAINTENANCETo assure smooth running machinery andsave hours of downtime and repair costs

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follow inspection, adjustment, lubrication andmaintenance outlined here.

A. Lubrication.

The lubrication chart in the back of thismanual depends on shop conditions and ma-chine use.

1. Fluid levels and filters.Routinely check fluid levels and filters. Lockor tag out the electric disconnect switch. a) Hydraulic fluid.Check the fluid level with the saw head low-ered and the machine turned off. Fluid show-ing in the screen, ½" to 1" from the top of thetop is proper level. Bring the fluid level up tothe this level with Mobil DTE-24.Low fluid level allows air to enter the pump,causing dieseling, cavitation and a ruinedpump.Dirty hydraulic fluid is usually because thereservoir filler cap is not in place.Dirty hydraulic fluid causes valves to stickand orifices to plug. Machine adjustments toimprove poor sawing will constantly change.If hydraulic fluid inspection reveals dirt, or ismilky-white with water or coolant, contamina-tion is in all lines and cylinders. Break prima-ry connections and blow out the lines. Drainand rinse the reservoir twice with fuel oil.Swab out the reservoir and fill it with cleanfluid. Change the hydraulic fluid filter car-tridge.Activate all cycles several minutes to flushout the machine.Repeat the process five times, or until thereis no dirt or discoloration in the hydraulicfluid.Change the filter cartridge again.Install a chain and lock on the reservoir fillerneck and cap.

Hydraulic fluid temperature over 130° is amalfunction.Check the fluid level.Check the fluid for proper viscosity.

Check that all machine cycles functionthrough completion, not partly blocked.

b) Hydraulic fluid filter.Original equipment hydraulic fluid filtercartridge (part number 911231) furnishedwith this machine is a spin-on type with aclassification of three micron, absolute,filtering .003 contamination out of thesystem.Replacing the filter cartridge with a ratinggreater than three micron, ten micron forinstance is a popular filter, will down-grade the system and life expectancy ofthe machine.

Change the filter cartridge once a year(2,000 hours) for a trouble-free operation.

Locate the filter cartridge mounted inside thelower front panel of the operators console.Unscrew and discard the contaminated filterand gasket. Check the gasket on the newfilter cartridge for damage. Wipe a thin filmof fresh fluid on threads and gasket of thenew cartridge and turn it on the filter system,hand tight only. Make certain the cartridgebottoms out on the filter system head.

c) Gear case oil.See the contents page for the drive gearreducer bulletin.NOTE: Drain the blade drive reducer caseafter the first 80 hour run-in period.Flush the case with a light flushing oil. Filterthe old oil, or replace it with fresh oil.Each 2,000 hours of operation drain thereducer cases, flush, and fill with fresh oil.Check gear case fluid levels at the sightglass on the front of the case or pipe plug atthe side of the gear case, or oil standing inthe filler elbow. With the machine shut downoil must be visible in the filler elbow, or seepout the loosened pipe plug.Add fresh oil as necessary to bring the levelup. W. F. Wells and Cone Drive-Textron use andrecommend using only Mobil SHC-634

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synthetic oil.It is normal for gear reducers to operate athousing temperatures up to 200 degrees.Keep finned areas on the case clean to allowmaximum heat dissipation.Keep breather plugs on top of the casesclear of dirt to avoid gear case oilcontamination.

B. Coolant Fluids and Pump.Caution: During machine set up and trialrunning fill the coolant tray. Coolant fluid is aheat sink for the pump and it must not beoperated unless the coolant tank is full ofcoolant. Routinely clean the coolant tray andpump screens. A blocked screen will stallthe pump. A damaged screen allows chipsto block or enter the pump chamber, ruiningthe pump within minutes.This machine has a 15 gallon coolant traycapacity.Consider coolant type and machine usebefore filling the tray. Some fluidsdeteriorate more rapidly than others. Thework piece and the blade determinecoolant/lubricant type.There are coolant fluids and there are cuttingfluids.Faster blade speeds require efficient coolantto prevent saw blade overheating.Increased tool surface speed makes thecutting edge run hot. Without proper coolantblade metal temperature passes critical at agiven point. Blade teeth soften and dull.

1. Straight cutting oil.Slow blade speeds for hard metals and sawblades that remove a large chip from thework piece require more coolant/lubricant.At these slow speeds high lubricity straightcutting oil is popular.

Do not use straight cutting oil in this machineunless factory labels clearly show machineequipment includes oversize coolant pump,lines and nozzles.

2. Water soluble oils.Water soluble oils offer good cooling as wellas good lubrication.Use one part oil to fifteen parts water formost steels.Use one-to-one water and soluble oil for toolsteel sawing.This machine can use this fluid.

3. Synthetic oils.Synthetic oils, without chemical solution, aresimilar to water soluble oil capability anddependability and used in the same manner.Use one part oil to fifteen parts water foraluminum sawing. A drawback to somesynthetic oils is animal fat in the formulawhich deteriorates in time, and at hightemperatures, causing a breakdown of thefats, creating an unpleasant odor.This machine can use this fluid.

4. Chemical solutions.Some cooling/cutting fluid used in highspeed aluminum machining and free-machining alloys contain chemical wettingagents.The application is useful but side effects areharmful to the work piece and the machine.Do not use chemical coolant in this machineunless factory labels clearly show machineequipment includes corrosion resistantpump, hoses, seals and paint.

C. Mechanical.1. Blade installation.

WARNING: Do not install a blade on thismachine before completing the pre-operationcheck-out.See the Saw Blade Selection andApplication manual to select the properblade for the work piece.

For maximum feed, speed and blade life,request a reliable blade supplier conduct testsawing with his recommended blades on themachine and the work piece.

a) Start the hydraulic pump and release

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blade tension.

b) Raise the saw head so the guide armsclear the vise jaws.

c) Lock or tag out the electricdisconnect switch. Always disconnectpower before touching the blade oropening the wheel covers.

d) Open the blade wheel guard doors.Blade wheels rotate counterclockwise asseen from the operator's console, drawingblade teeth through the work piece from leftto right against the stationary vise. Wearheavy gloves for positive control of theblade. Hold the blade in front of the wheelswith teeth pointing to the back of themachine. Teeth on the lower blade loop mustangle right, toward the drive wheel.If teeth on the lower loop point to the back ofthe machine but angle left, toward thetension wheel, the band is inside out.Reverse it.For safety, clear personnel from the area.Loop the band over a handy guard post ortrash barrel. Twist the band, as far aroundthe circumference as necessary, until theband snaps over.

e) Again, hold the blade in front of thewheels with teeth pointing to the back of themachine. Teeth on the lower loop must angleright, toward the drive wheel.

f) Place the top of the loop over the frameposts, into the blade guard channel, andonto the wheels.Pull the back of the band up next to thewheel flanges.

g) Start the machine and jog the tensioncontrol just enough to take up slack in theband. Shut down the machine. This machine is equipped with door interlocksafety switches. The blade cannot be startedwith the blade guard doors open.

h) Open the blade guides with the thumblever cap screws in the face of the guides.One guide at a time, grasp the blade firmlyeach side of the guide, twist the teeth downand bring the back edge of the blade upbetween the guide blocks.

i) Tighten the thumb lever cap screws inthe guides, check that the back of the bladeis next to the wheel flange.

j) Close the blade guard doors.Start the machine and run the blade 30seconds.

k) Shut down the machine.Check that the back of the blade is close to,but not scrubbing on the wheel flanges..010" to .030" clearance is ideal. Checkblade tension before each saw cut.

2. Blade wheel alignment.Wheel alignment is not part of a routinemachine setup for a sawing operation.Factory-aligned, inspected and testedwheels, blade and guides require nomaintenance.The usual cause of misalignment isexperimenting or bumping the wheels orguides with the work piece or materialhandling equipment.Routinely check the wheel flanges for wear.Be alert to audible and visual changes inmachine operation. A high-pitched metal-to-metal scrubbing sound coming from thewheel guard doors is the back of the bladescrubbing on the wheel flange. The bladewill wear the flange from the wheel beforethe blade breaks.When checking wheel alignment use only anew blade, known to be straight. A usedblade may have developed a camber,making results of an adjustment useless.To inspect the wheel flanges or to adjusteither wheel, raise the saw head so thewheel guard doors clear the control console.Release blade tension and lock or tag outthe electric disconnect switch.

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a) a. To adjust the tension wheel, seethe contents page for the tension assemblyprint and Figure 3.

(1) Open the tension wheel guard door.The tension wheel mounts on a sliding plate.Locate and loosen two lock nuts, under thewheel spokes, top and bottom of the outsideedge of the slide plate.

(2) A set screw beside each lock nut is aspacer for the plate.See "A" Figure 3, above.

The blade is running too far away from thewheel flange, the wheel rim too close to theframe on the outside. Turn both set screwsclockwise, equally, ¼ turn each, pushing theoutside rim of the wheel away from theframe plate.

NOTE: Do not overcompensate. Turn theset screws equally ¼ turn only.

(3) Tighten the lock nuts.Close the wheel guard doors.Tension the blade. Start the blade and runit 30 seconds.Shut down the machine.Check that the blade is not still running toofar away from, or scrubbing on the wheelflange.

(4) See "B" Figure 3, above.

The blade is running too close to the wheelflange, scrubbing, the wheel rim too far fromthe frame plate on the outside. Turn bothset screws counterclockwise, equally, ¼ turneach, drawing the outside rim of the wheelcloser to the frame plate.NOTE: Do not overcompensate. Turn theset screws equally ¼ turn only.

(5) Tighten the lock nuts.Check the clearance as in step (3).

b) To adjust the drive wheel, see thecontents page for the drive assembly printand Figure 4, below. The drive wheel mountson the output shaft of the gear reducer,bolted to the back of the saw head frameplate. Adjusting the gear case adjusts thedrive wheel proportionally in the samedirection.

1) In the cabinet at the back of the sawhead behind the drive wheel, locate four hexhead screws on the gear case, lockingthreaded spacers and the gear case to the

saw head frame plate. On the side of the gear casenext to the cabinet wall, hold the threadedspacers and loosen the two hex head lockscrews top and bottom of the gear case, oneor two turns.

15

2) If the blade is running too far from thewheel flange, the wheel rim low on theoutside, too close to the frame plate, see"A," Figure 4, below, turn both threadedspacers, equally, top and bottom of the case¼ turn counterclockwise, drawing the gearcase closer to the frame plate, pushing thewheel rim away from the frame plate. NOTE:Do not over-compensate. Turn the threaded spacers ¼ turn only.

3) Tighten the hex lock screws.Tension the blade and run it 30 seconds.Shut down the machine. Check that theblade is not still running too far away from, orscrubbing on the wheel flange. .010" to .030"clearance is ideal.

4) If the blade is running too close to thewheel flange, scrubbing, see "B," Figure 4,below, the wheel rim high on the outside,turn both spacers clockwise, equally, ¼ turn,pushing the gear case away from the frameplate, drawing the outside wheel rim closerto the frame plate.

5) Tighten the hex lock screws and checkthe clearance as in step (3).

3. Blade tension adjustment. Factory-setblade tension is for size and type bladesused in general purpose sawing.The blade tension control must be in theTension position while sawing.The dial indicator needle at the operator'scontrol console must come exactly to thegreen dot on the dial.If the tension indicator needle does notreach, or passes the green dot, inaccuratesawing or blade break results.For maximum feed, speed and blade lifeconsult a reliable blade supplier for recentresearch in tooling.Request test cuts on the machine and thework piece with his recommended blade.Tension the blade to manufacturer speci-fications with a precision tension gaugemounted on the blade.

The supplier will install his gauge on theblade.Tension the blade.When the needle on the control console dialreaches the green dot, the blade supplier willdetermine from his gauge whether toincrease or decrease tension for his recom-mended blade.To change blade tension, remove the coveron the lower front of the operator's controlconsole.Increase or decrease blade tension with thedouble lock knob hydraulic valve, inside leftwall of the cabinet.With tension adjusted for the choice ofblades, lock the valve.Move the green dot to the new needlelocation on the face of the gauge.When changing blade types for other work,tension the new blade to blade manufacturerspecifications.Before each cut, make sure the tensionneedle is at the green dot.

4. Sawing force check.The dual hydraulic servo-controlled sawingforce system measures work pieceresistance to the blade while sawing,applying uniformly controlled force to theblade for accurate sawing regardless ofconfiguration, size or type of material.Sawing force range for this machine is 0 to400 pounds, adjusted at the operator'scontrol console.See controls 20 and 21 on page 6.Too much or too little sawing force results inuneven sawing or broken blades.With each blade change, inspect the bladeguides for chips and sludge build up. Theyprevent blade guides and metering valvelinkage from working properly, producingother than the sawing force adjusted at thecontrol console.Sludge in the coolant or hydraulic fluid, amalfunctioning sawing force dial, meteringvalve or linkage from the blade to themetering valve alters the dial reading fromactual force the blade applies to the work

16

piece.Use preventive maintenance.Check the sawing force.

a. Tension the blade, spread the guidearms and vise jaws. Raise the saw head.Do not start the blade.

b. Close the saw head approach feedcontrol valve and press the saw head feedcontrol.

c. Open the saw head approach controlvalve just enough to lower the saw headslowly.Tap the blade lightly at the guides, seatingthe blade in the metering valve linkage.Sawing force is adjusted by lengthening orshortening the linkage that runs from themetering valve to the carbide back-upslipper. See drawing 010370A.

The metering valves close and the sawingforce/saw head stops applying force on thesaw blade.

To verify that the metering valve is working,lift the linkage as shown in drawing010370A. The frame should stop comingdown.

If more than .040" of travel is needed to stopthe frame, adjust the linkage as described insection 8.

5. Metering valve linkage check.If the sawing force check failed, linkage fromthe back of the blade to the metering valvesmay be worn or the blade guide blocks maybe pinching the blade.Be certain the guides are flushed clean andtry forcing the tensioned blade in and out ofthe blocks.Under full tension the blade must only partlyreturn back up into the guide. If it hangs up,sticks or slides too freely between theblocks, go to step 6 for a blade guide checkbefore continuing here.

If the tensioned blade only partly returnswhen pushed down out of the guides,without hanging up, continue this check.Linkage travel must not be less than .030"and not more than .040".

More than .040" travel, the linkage too short,will not control the metering valves and maylet saw teeth enter between the blocks, ruin-ing the blade and the blocks.

Less than .030" travel, the linkage too long,will hold the metering valves closed, hold thesaw head in suspension or come down onlyslowly.Check the linkage travel.

a) Fasten a dial indicator to the guidearm with the contact point resting on theback edge of the saw blade.Set the dial to "0" and place a block of woodunder the blade next to the guide arm.Use a piece of round stock in the blade toothgullet and bring the saw head down on theblock of wood.When the saw head stops, read the dial indi-cator. Check both guides.

b) If the blade is not hanging up in theguides and blade travel at both guides is.030" to .040", problems with the sawingforce check is not with linkage travel fromthe back of the blade to the metering valves.Go to step 7 for a metering valve check.

c) If linkage travel is more than .040" it istoo short to close the metering valves. Theprobable cause is a blade track worn in thebackup slipper greater than .030". Go tostep 6, dismantle and inspect the guides andbackup slipper. If the backup slipper is notworn adjust the linkage during the meteringvalve check.

d) If blade travel is less than .030" thelinkage is too long to let the metering valvescontrol sawing force. The probable cause isa backup slipper replacement and shims

17

added to the linkage, or, guide blocksbinding the blade. Go to the next step for ablade guide inspection.

6. Blade guide inspection.NOTE: Consider this and the next two itemson linkage and metering valve inspectionbefore making adjustments.Routinely, when changing blades, check theguide rollers and backup slipper for dirt andsludge and proper guide roller clearance.Normally, guides require adjustment onlyafter years of wearing in.If stock or material handling equipment nearthe machine bumps the guides they willbreak or misalign and require adjustment orreplacement.Following are three preventive maintenancechecks.

a. Clean, inspect and adjust the guiderollers.

(1) Guides are factory set .001" widerthan the blade thickness..042 blade thickness requires .043 guideroller clearance.See the contents page for the blade guideprint.Guide rollers adjusted too tight or too loosecause erratic sawing rates, inaccurate cutsand broken blades.Release blade tension and lock or tag outthe electric disconnect.

(2) Remove the blade and flush out theguides.

(3) Check roller clearance with feelergauges, or, assemble a new blade on themachine. Tension the blade.Look for a tight or loose fit. Force the tensioned blade down out of theguide. It must only partly return up into theguide rollers when released.

(4) Look for blade movement in the saw-ing area between the guides.Twist the blade back and forth between the

blade wheel and guide.

(5) If feeler gauges read correct, or if thetensioned blade only partly returns whenpushed down out of the rollers and there isno blade movement between the guideswhen twisted from outside the guides,problems with the sawing force check arenot with guide roller clearance.Go to item 8 on metering valve linkagecheck.

(6) If step (5) failed, adjust the guide roll-ers. Raise the saw head.Release blade tension. Lock or tag out theelectric disconnect switch.

(7) Release the carbide side inserts sothey can float with the blade during adjust-ment.

(8) One roller on each guide rigidlymounts to the casting and is not adjust-able. The companion roller adjusts on acam shoulder bolt. Loosen the lock nut ontop of the high side of the roller casting,unlocking the cam bolt. Turn the cam boltat the bottom of the roller.

(9) Use feeler gauges to adjust clearancebetween the rollers .001" wider than bladethickness, or go back to step (3).

Caution: Rollers gripping the blade too tightprevent the metering valve from controllingsawing force; the blade will snake throughthe rollers, inaccurate sawing and bladebreak results.

(10) Install and tension a new blade onthe machine. With rollers adjusted, hold thefloating carbide side inserts snug against theblade and draw them up to the roller castingwith the hex head screws.Lock them in place against the blade with thesocket set screws at the side of the guidecasting.

18

b. Horizontal guide adjustment.It is critical when making this check to alignthe vise jaws 90° to the saw bed.

(1) Use a combination square with thehead centered. Place the 90° side of thehead into the vise slide in the saw bed andbring the face of the stationary vise jaw tosquare with the combination blade.Make the same adjustment on the movablevise jaw.

(2) With vise jaws aligned square to thesaw bed, move the 90° side of the squarehead to the end of the combination blade.Place the head against the stationary visejaw and bring the square blade up againstthe saw blade to check for square.If the blade is square to both vise jaws, go tostep c.

(3) If the saw blade is not 90° to both visejaws discover which guide (or both) is out ofalignment. Mount a new blade on themachine and tension it. On top of the guidebeam, loosen both guide arm clamps. Thetensioned blade will draw the guides intoalignment. Check the blade, square to thevise jaws. Tighten one guide arm clamp ata time to see which arm is pulling thetensioned blade out of square to the visejaws.

(4) Determine which guide (or both) toadjust to align the saw blade to the visejaws. Clamp the arm at the guide beam andsee the contents page for the blade guideprint.

(5) Loosen the hex screw at the top ofthe plate holding the guide assembly to thearm and the hex nut immediately under it,unlocking the assembly plate and cam bolt,allowing the assembly to rotate intoalignment.

(6) Locate the hex head cam bolt on theopposite side of the plate from the hex lock

nut and adjust the plate and blade intoalignment with the blade wheels, square tothe vise jaws.Use the combination square against theblade and vise jaws to check the alignment.See step (1).

c. Vertical blade/guide adjustment.After a vise jaw adjustment to align the bladesquare to the vise jaws, rotate the bladeback square with the saw bed.

(1) Place a dial indicator on the saw bednear the guide, with the indicator contactpoint against the saw blade, directly abovethe tooth gullet.

(2) Set the dial to "0.Open the saw head control valve slightly tobring the blade down across the dialindicator contact point slowly.If the dial indicator reads "0" bottom to top ofthe blade at both guides, go on to item 8,metering valve linkage inspection.

(3) If step (2) failed, adjust any differencein the dial indicator reading, bottom to top ofthe blade, to "0." Locate the adjusting screwabove the guide rollers and the lock nutbehind the guide above the blade.See the blade guide print. Loosen the locknut and turn the adjusting screw to tilt theroller assembly, bringing the blade to verticalsquare with the saw bed. Visually check thealignment with the combination square.Check the alignment with the dial indicatorfor a "0" reading from bottom to top of theblade as it passes over the indicator tip.

7. Metering valve inspection.See the contents page for the blade guideand metering valve prints.With each blade change, inspect the bladeguides for chips and sludge build up that pre-vent metering valves and linkage from work-ing properly.If the sawing force check failed check theblade guides and linkage before making this

19

check. Particles flaking from walls of hydraulic linesmay have accumulated in the sawing forcesystem. Check the change date on the hy-draulic fluid filter cartridge.

a) Lower the saw head and lock or tagout the electric disconnect. NOTE: If the sawhead will not come down because of cloggedmetering valves, block up under the guidebeam to prevent the saw head from droppingduring the next step.

b) Remove hoses from the meteringvalves and hex head screws holding thevalve to the guide arm.

c) Lift the valve body from the guideblock; remove the socket head screws fromthe valve cap, shown in foldout 010370.

d) Pull the plunger from inside the valvebody and wash all parts in mineral spirits.Inspect the seals for embedded particles.Replace them from 2,000 hour spare parts ifnecessary.

e) Cleaning and replacing worn partsfrom the blade guide blocks and backupslippers, up to the metering valves, is acomplete overhaul of the sawing force sys-tem, and, properly accomplished, bringsabout proper results with the sawing forcecheck, step 4, page 18.

D. Electrical Maintenance.

W A R N I N G : C O M P L E T E T H EPRE-OPERATION CHECK-OUT BEFORESTARTING THIS MACHINE.During machine installation and trial running,fill the coolant reservoir. Coolant is a heatsink for the pump and it must not operateunless the coolant tank has adequatecoolant. See maintenance section part "B"on coolant fluids.A qualified electrician must make electrichook up and adjustments to this equipment.

See machine voltage, labeled on the electriccabinet door. See the contents page for theelectric print.

1. After electric hookup check hydraulicpump rotation.

a) Check hydraulic pump rotation in thecabinet behind the operator control console.Rotation must be in the direction of the arrowon the pump housing. With the hydraulicpump rotating in the correct direction, thedrive wheel should be rotating counterclock-wise; if not, reverse wiring at drive motor.

2. Routinely check limit switch mountingsfor dirt and loose fasteners which couldcause a later malfunction.

3. The electric system for this machineconsists of a programmed computerreceiving and coordinating signals fromoperator controls and limit switches.The signals send current to solenoid coils invalves controlling hydraulic fluid flow tocylinders maintaining blade tension, movingthe saw head, vise jaws, barfeed, outboardvise, vertical holddown clamps and poweredroll tables.Automatic machine functions start the nextfunction. A function may look complete butif a limit switch does not trip, or is faulty, thecomputer will not receive the signal. Thesolenoid coil cannot activate the valve toshunt hydraulic fluid to cylinders and hydrau-lic motors. Usual cause is a burned outsolenoid coil or sticking

E. Parts and Service.

Most-used replacement parts are availablefrom factory stock with same-day shipment.Service is available by telephone conferenceor a service call to the machine site.

1. Parts.For 95% insurance against downtime, thelists show most commonly used parts. Pro-

20

gram them into inventory on a replace-as-used basis.2,000 hours is equal to one eight hour shiftworking for one year.Account for spare parts. Enter them intoinventory with a zero stock level reorderingsystem to assure availability when the needarises.Write additional part numbers assigned forplant systems compatibility on the lists forreference.Shelf life for parts listed is indefinite, only solong as packaging is intact. Look for packag-ing opened for inspection, authorized orotherwise. Repackage parts in suitablecontainers and identify them to preserveusefulness when the need arises.Except fluids and filters, expect machine lifeof those parts planned for replacement toexceed the hours shown by as much asthree times.Variables are machine operator and originalequipment manufacturer workmanship reli-ability.

Nuts, bolts and common parts normallyobtained from hardware or mill supply storesmay not show a part number on the prints,but will show a part description for localsource replacement.If a needed part is not identified, provide ourparts department with a detailed descriptionof the part, where it is on the machine andwhat it does in operation. This will beenough information for our parts departmentto identify and supply the part.

2. Service.Only preventive maintenance is required formany years, with expendable belts, bulbs,filters and blade brushes replaced by mainte-nance personnel. solenoid valve.Manual machine functions may operatewhen automatic sequences will not.If the machine will not function in the manualmode, begin checking at the electric source.Trace through fuses, motor overload andlimit switches to solenoids. If the solenoidplunger will activate the valve, replace theburned out coil. If the plunger will not

activate the valve, replace the frozen valve.See spare parts.Also, see optional equipment possibilities.

4. A blown fuse in the 115v line, 5a,under the transformer in the electric cabinet,is probably caused by dirt or chips inside thecoolant pump. Unplug the coolant pump atthe in-line disconnect. Replace the fuse andrun the machine.If the fuse holds without the pump, clean allscreens and the coolant pump rotor to deter-mine if the pump can be salvaged.If the fuse will not hold, look for a short in thecontrol panel at the operators console.

It is vital to machine life and sawing efficien-cy that machine operators and maintenancepersonnel read and have access to the con-tents of this binder.If a sawing or machine malfunction occurs,try to get at the cause of the problem ratherthan remedy a series of side effects.The index in this manual is topical, offering asolution to common problems.

If a machine problem cannot be resolvedby in-plant personnel, do not hesitate to callour service department. A factory-trainedand qualified person will resolve the malfunc-tion on the telephone.

For Parts or ServiceTelephone 269-279-5123

Fax 269-279-6337parts@wfwells.com

www.wfwells.comFor faster service, furnish the machinemodel and serial number from theidentification plate on the machine bed.

Note your serial number here:

Model F-1620-A CNC

SEE SPARE PARTS LISTS NEXT PAGE

21

MODEL F-1620-A CNC Recommended Spare Parts List

Group I, 2,000 Hours

Qty Part# Description

1 900091 Blade brush.

2 901023 Blade brush bearing.

1 908965 Blade drive belt.

8 901204 Blade guide rollers, 1¼" blade.

2 292290 Blade backup slipper, carbide

4 292420 Blade guide side inserts, 1¼" blade

1 911231 Hydraulic system filter cartridge.

1 921530 Saw head limit switch assembly.

2 900811 One quart of synthetic gear box oil.

Group II, 5,000 Hours

1 908966 Sprocket, Drive Motor.

1 908967 Bushing, Drive Motor Sprocket.

1 908966 Sprocket, Gear Box.

1 908961 Bushing, Gear Box Sprocket.

1 900085 Lift cylinder leather, 1¼" .

1 900086 Lift cylinder leather, 1 ¾".

1 010370 Metering valve assembly.

Group III, 10,000 Hours

1 445115 Tension wheel assembly w/ bearings, 1¼" blade.

1 309341 Drive wheel, 1¼" blade.

22

The following recommendations are for nominal clean operations.

Consider shop conditions and machine use when wiping oil on exposed areas.

Saw blade and guide lubrication depends on a properly functioning coolant distribution

system. Check the coolant pump screens often to be sure they are clean and in place.

Clean the coolant pan and change or filter the coolant often, depending on coolant type and

machine use.

NOTE: 80 Hour, one-time maintenance.

See maintenance section IV c, page 13 for the first time gear case oil change.

LUBRICATION INSTRUCTIONS MODEL F-1620-A CNC

INTERVAL

(HOURS)

LOCATION LUBRICANT SPECS

200

BLADE TENSION WHEEL SLIDE,

UNDER WHEEL. GREASE

NLGI #2

CYLINDER RODS.

SAW HEAD POSTS.

BARFEED SCREW.

OIL

300 SSU

AT

100/

2,000

SAW HEAD POST.

ELECTRIC MOTOR BEARINGS. GREASE

NLGI #2

DOOR HINGES & LATCHES.

GUIDE ARM BEAM.

VISE SLIDES.

OIL

300 SSU

AT

100/

10,000

HYDRAULIC RESERVOIR. HYDRAULIC

FLUID

Mobil DTE

24

TENSION WHEEL BEARINGS

REMOVE AXLE NUT, FRONT

BEARING AND ALL OLD GREASE.

REPACK.

GREASE NLGI #2

ALSO SEE MAINTENANCE SECTION

OTHER 2,000

DRIVE GEAR REDUCER Mobil SHC 634

Synthetic Oil

HYDRAULIC FLUID FILTER

CARTRIDGE ( part # 911231)

SEE MAINTENANCE SECTION

23

Material Safety Data SheetsW. F. Wells Incorporated supplies the following Material Safety

Data Sheets, furnished us by the original manufacturer of the

product, as a material used in our equipment of manufacture.

Responsibility for accuracy of information therein rests with the

manufacturer of the product.

It is our intent to seek out, use and pass along to our customers

the safest products available, necessary to the operation of our

equipment.

213770 RUST VETO 377 The product is rust-inhibitive fluid,

used on all of our band saw machine tools.

The product is applied to unpainted surfaces before shipping the

equipment.

602623 MOBIL DTE 24 The product is hydraulic fluid, used in all

of our band saw machine tools.

The product is in hydraulic fluid reservoirs, motors and cylinders

activated with hydraulic fluid.

MOBIL SHC 624 Synthetic OIL The product is gear case

lubricant, used in some of our band saw machine tools. The

product is in the saw blade drive and powered roll table drive gear

reducer cases.

24

1 02830

1 02820

HHCS1 2 1 31FW1 2

HHCS58 1 1 2 SCREW

447200 JAW

WASHERSCREW

FENCE

FENCE

251 880 SLI DE

90902 1 COUPLI NG

447 1 20

1 02960TI POFF

BED

91 0730

HHCS38 1 61SCREW

446002POST

HHCS1 1 477SCREW

446860

MOUNT

HHCS58 1 1 3

SCREW

950051 SEAL

HHCS341 05SCREW

WEAR PLATE

4471 80CARRI AGE

P I LLOW BLOCK9031 95

HHCS38 1 61 1 2 SCREW

447 1 50 BASE

91 0038SEAL

9002 1 1WASHER

HHCS1 2 1 351 2 SCREW

1 0 1 41 00RAI L

1 04731SPACER

1 04800CYLI NDER

SHCS38 1 61 SCREW

DP51 61P I N

447250

4472 1 0 JAW

9002 1 7WASHER

HHCS51 61 8 1 SCREW

ROLLER

447220 JAW

9001 28

SCREWHHCS58 1 1 2

447252WEAR PLATE

JAW472454

FHS1 420 1 2

SCREW

1 0 1 4730WEAR

STRI P

900239WASHER

HHCS341 621 2SCREW

447251

FHS1 42034

SCREW

WEAR

PLATE

A447266WELD AT ASSEMBLY

W. F. WELLSF−1620−A CNC LAYOUT

DRAWING #447140

Weld at assy.2 places.

Assembly with Loctite 242 (Blue)

B447430

SSH CH

W2

R4

C1

E02

A447215

10480350" stroke

Was 10280012−17−4

950050

9002 1 2was

2−16−5

was

2−16−5

taper pin

25

26

AS S Y .

TOOL

CAP

B 0 1 0 2 93

7 5 0

7 5

1 . 1 6 0

1.

2

3

.3

P RES S U RE

1 / 8 − 2 7 NP T

TO TANK

NOTE :1 ) C L E AN AL L P AR

GREAS E P ACK & AS S EMB L E .S TORE I N COV ERED CONTA I NE R .

2 ) U S E AS S EMBL Y TOOL #0 1 0 3 5 6 .

3 ) TH I V AL V E MUS T BE U S E DWI TH #9 1 1 4 4 7 CONTROL V AL V E

4 ) B L E ED A I R F ROM P ORT #1WHEN I NS TAL L I NG TH I S V AL V E

5 ) " S I NAMI C " V AL V ES REQU I RE TH I SV AL V E B E CONV ERTED TO0 1 0 3 7 2 V AL V E AS S EMBL Y .

TS THROUGHL Y −

S

REMOV E 0 1 0 7 90 AND 9 1 2 3 0 39 / 1 0 / 9 1 .

1

Me t e r i n g V a l v e

date

scale

title

material

sym. revision initial date

rev.size drawing number

W. F. Wells drawn by

010370none

HHCS1420212

HHCS103212

A010356

A010292

904114

904113

C010294

904113

905044

905044

A010296

A292370

A292380 1/2

5/8

3/4

23

27

COVER

4 1 0 − 30 0 0 RPM

RPM

BELT

CONE DRI VE

40 / 1 RATI OGearbox

SHAFT NUMBER 30939190 0 0 91BRUSH ONLY

61 0 8 0COMPLETE BRUSH ASSY.

447 0 50GUARD

90 5 1 3 1 GARLOCK SEAL

4460 0 1POST

90 3 1 2 2 BUSHI NG

309391

30925

309341

4468 90

WHEEL

SCREW

SHAFT

COVER

. 0 1 0

. 0 30

90 0 0 2 0L I NCOLN 50 0 0

5

90 8 965

90 8 96Bu s h i n g

90 8 966Sp r o c k e t

90 8 966Sp r o c k e t

90 8 96Bu s h i n g

93 1 933Mo t o r Bas e

HHCS142012

HHCS1213314

30 9350HOLLOW BOLT

5

HHCS38161

1 7 50 RPM 1 8 4 T FRAME7 . 5 HP ( SAW DUTY)

93 1 3

1

7

35

LW14 (LOCK WASHER)

LW38 (LOCK WASHER)

HHCS38161LW38 (LOCK WASHER)

448175

10.25 − 75

900851ASSY

W. F. WellsThree Rivers, MIwww.wfwells.com

A. C. Drive Assembly F−16−2 & F−1620 A CNC

Drawing number 448170

28

TRAVELBLADE

440460

440470

440450

HHCS38161

91 6031

HJN3410

906743SNAP RI NG

446920 DOOR

90 1 2 2BEARI NG

447040BLADEGUARD

HI NGE440540

1 / 4− 20RHSLOCK WASHERHEX NUT

1 / 4− 20

HEX NUTRHS

44051 5WHEEL

440482SPACER

5/ 1 6 CUT WASHER1 OR 2 PER STUDAS NEEDED FORBLADE ADJUSTMENT.

91 0 1 49

14− 20 X 6HHS & HN

3" BORE X STROKE3"

TENSI ONRELEASE

4

B/ M 44 1 1 5WHEEL ASSY. WI THWHEEL, BEARI NGS & SPACER.

5

900226Washer

900226 washer was 3/4 cut washer 04−02−03

29

SSS38162

HN3816

292440292470WASHER

901204BEARI NG

447040

292395

447020 440905

4408 1 0

440390

410710

WASHER

900215WASHER

292430

292390

292360

HN1213

447050BLADE GUARD

Note: Use dial indicator to align

295181

292290

440910HN1220 382140

912673

010296

010370SEE METERI NGVALVE DRAWI NG.

A292375 Sc r e w

911500Coo l ant Val v e

Co o l ant Bl o c k

Car b i d e Bac k u p

Gu i d e

Bac k i ng

447030Gu i d e Ar m

St u d

Hand l e

Was h e r

NOTE:

. 0 0 . 0 0

34

MOVEMENT MUST CLOSE CONTROLVALVE TO STOPCUTTI NG HEADDESCENT.

Ro d

Bac k i n g

Gu i d e Ar m

292360Gu i d e

Ca Bo l tmCam Bo l t

292420I ns e r t

Co o l ant Ho s e

010537Nut

292270Ad j u s t i ng

Sc r e w

292410

292270Ad j u s t i ng

Sc r e w

HN1213

HHCS14201

Install withantiseize.

SSS142038

SSS103214

912924

912922

a448191912111

382153ASSEMBLY

ewA292375

Sc r

F−16−2 Guard

A292376Spacer

900216

hex nut

washerHN1213

SAE12

SAE12washer

7Guard

44 50 5

F−1620−HA CNCand F−16−3

spacer

blade vertical to within .003 TIR.

900215

30

B61 084

1 / 2− 1 3

HN

A255360

900091

A61 081 5

610805

BLADE

BRUSH

ASSEMBLY

901 023950009

5

W. F. Wells

3−29−96

material

title

drawn by

scale

date

size drawing number

revisionsym. initial date

rev.

32

Section BB

Saw Frame

Saw Bed

B447355

HHCS1213212HN1213 900202

Wheel

HHCS12133FW12

SawBase

C107140 Tank

HHCS12131HN1213

A

A

B

B

Section AA931902

Coolant Pump

C107970Conveyor

911029Motor

447350F−1620−A CNCChip Conveyor

Coolant15 Gal

A107125

107170

B104855

HHCS381634

107160screen

34

35

A105211

HHCS34102

A451 421

A451 422 8"

4"

A451 423 1 2"

A111780

HHCS12134

− 1 XHHS

58

1 4

HEX NUTWASHER

B105250

B105266

A1014978 A1014979HHCS12134SAE WASHER

12− 1 3 X 4

HHS

SAE WASHERSHEX NUT

12

A105265

91 051 1MI LWAUKEE LH− 1 22" BORE X 1 6" STROKE1 3/ 8 ROD.1 " − 1 4 FEMALE END

447118F−1620−A CNC

BARFEED HOLDDOWN

A1014714 PADA1014715 PADA1014716 PAD

ATTACHED WITH 1/4−20 X 3/8 BUTTON HEAD SCREWS

W. F. Wellstitle

scale

date

size drawing number

revisionsym. initial date

rev.

37

B105320

2"

BORE

X16"

STROKE

910152

A105266

A105310

A451421

A451422

A1014714

4"

A1014715

WEAR

STRIPS8"

A105265

HHCS34102

HHCS1213712

A1014740

A105330

date

scale

title

material

sym. revision initial date

rev.size drawing number

W. F. Wells drawn by

1014700

Saw Vise Holddown

F−1620−A CNC

A1014716

12"

A451423