Operators booklet ULTRA Mk3 v3.qxd:Layout 1 · Always keep your work area clean and tidy, ......

Instruction Manual

C h a i n s a w S h a r p e n e r

Operators booklet ULTRA Mk3 v3.qxd:Layout 1 15/09/2014 14:42

Please familiarize yourself with the proper usage of the ULTRA Mk3 by

reading this manual. Keep these instructions for future reference.

These operating instructions will make it easier for you to handle the

device and help avoid possible malfunction, damage or physical injury.

IMPORTANT!

1. Always wear protective clothing when operating the ULTRA Mk3. Always wear safety

goggles and ear protection. Protective clothes, gloves and footwear are recommended.

2. Always keep your work area clean and tidy, always use in well lit areas. Do not expose

to water. Do not use near flammable materials.

3. The ULTRA Mk3 should be stored in a dry location to reduce the risk of rust. Always

keep the device clean and free of dust, metal debris and dirt at all times. Always lock

tools away and keep out of reach of children!

4. For your own safety do not use the ULTRA Mk3 for a purpose for which it was not

intended. Do not sharpen damaged chains.

5. Never operate the ULTRA Mk3 without the grinding wheel cover in place. Keep away

from the wheel when it is turning and make sure no one is standing in the line of the

wheel rotation trajectory.

6. For your own safety always unplug the ULTRA Mk3 when undertaking any inspections,

servicing, maintenance, cleaning or changing accessories.

7. Routinely check for damage before use. Do not operate if the ULTRA Mk3 if it does not

work correctly or has been dropped. Do not disassemble the ULTRA Mk3 and do not try

to repair it yourself - contact your customer support!

8. Do not use a grinding wheel that is chipped, cracked, or worn. You can check if the

wheel has cracks not visible to the human eye by hanging it up by the central hole

and tapping it with a non-metal object (ie: screwdriver handle). If it is in good

condition it will produce a metallic sound. A dull sound indicates a crack or break.

Safety Warnings and Precautions


Unpack the ULTRA Mk3 and check all parts for any damage. Dispose of the packaging

materials and read the instruction manual carefully. The ULTRA Mk3 machine is delivered

pre-assembled. One part consists of the base, on which the chain guide is located. The

other part is a bearing arm with the motor and handgrip.

The assembly should be preformed with the ULTRA

Mk3 unplugged!!

The ULTRA Mk3’s design provides either for a bench

installation or wall mounting. When installing it on to a

bench, put the ULTRA Mk3 on the edge of the bench to stop

(Fig 1) and screw it to the bench using the holes in the base.

When mounting on the wall, use the respective holes in the

vertical part of the base (here, a distance from the wall

should be kept or spacers should be used for the access to

the rear set screw to be preserved).

TIP: When mounting on the wall, take care to mount

the ULTRA Mk3 at a height of 120 -130 cm from the

floor to avoid working at eye level.

After the bench top installation, fit the arm in the base

inserting the pilot pin and securing it with a hexagonal

screw (Fig 2).

Now, it is possible to fit the rear side screw and screw the

setting and screw the setting wheel on (Fig 3).

Screw the supporting arm control holder with the screw in

the grinding disk body.

Fit the grinding disk enclosure on using the supplied screws

and respective wrench (Fig 5).

To be able to install the grinding disk, it is necessary to

unscrew the auxiliary flange (Fig 6).

Assembly of ULTRA Mk3


1. Handpiece

2. Grinding Disk Guard

3. Depth of Grind Set Screw

4. Cutting Edge Angle Wheel

5. Base

6. Screw Clamp Cradle

7. Cutting Angle Set Wheel

8. Scale

9. Clamping Lever

10. Mean Distance Set Screw

11. Guide Flap Valve

12. Screw Clamp

13. Guide Position Set Screw

14. Setting Screw

15. Grinding Disk

16. Grinding Disk Enclosure

Parts List

Nominal Voltage: 230V / 50Hz

Nominal Power: 235W

Maximum Speed: 3,000 RPM

Protection Class: IP 20

Noise Level: LWA 85.0 dB(A)

Weight: 4.8KG

Technical Data


WARNING: Before connecting the machine to the mains power, make

sure the machine is switched ‘OFF’ to avoid unintended starting!

1. Inspect the chain for the most worn-out cutter tooth and start sharpening with this

tooth. The most worn-out tooth is important in order to sharpen all other teeth to the

same depth!

2. Lift up the chain stop.

3. Check the necessary angle according to

the specifications for the chain (see table).

Adjust the top plate cutting angle (F) to

60° - 50° and retighten fixing screw.

4. Adjust the filing angle on the chain holder

assembly to 25° - 35° or to the required

angle and tighten the adjustment screw

for the vice angle.

5. Tighten the chain between the metal guide boards using

lever (B). Fold down the chain stop and pull back the first

cutter tooth against the chain stop.

6. Check the alignment is correct. Using the handle pull

down the grinding wheel to meet the cutter tooth. For

fine adjustment of the chain position use the chain stop

adjustment screw (E). If the position is correct, fix the

position with the locking screw. Fine adjustment of the

chain stop has to be made with the lateral adjustment

screw.

7. If necessary the distance of the guide boards can be adjusted with the set screw (A).

By doing this the chain will be securely fixed in position while using the fastening

lever. Make sure the chain is between both guide boards. Both guide boards have to

be so closely connected that the chain can not tilt to the side.

Operation of ULTRA Mk3


8. Adjust the maximum sharpening depth

with the screw for depth stop (K), and fix

this position with the locking screw.

9. Some types of chainsaw chain require the

chain to be offset by angle of 10° when

sharpening (see table). Use cutting angle

setting wheel to adjust this angle to suit.

10. Switch ‘ON’ the ULTRA Mk3 by pressing

firmly. Use the handle to bring the

grinding wheel down towards the cutter tooth.

11. Once sharpened mark the first cutter tooth with chalk. Sharpen every second tooth in

one direction. Then change the cutting angle to 30° or to the need of the angle of the

opposite direction.

• DO NOT move the chain holder whilst the machine is in operation!

• Most chainsaws chains have a filing edge angle of 25° or

30°. The filing edge is usually printed on the package of

a new chain. If you do not know the exact filing angle of

the chain, it is normally sufficient to estimate by sight.

Position the grinding wheel as shown in the drawing.

E

+10°

0°

-10°

9


To avoid malfunction, damage or injury always use a suitable grinding wheel that is in

good condition. Do not use a grinding wheel that is chipped, cracked, or worn. You can

check if the wheel has cracks not visible to the human eye by hanging it up by the

central hole and tapping it with a non-metal object (ie: screwdriver handle). If it is in

good condition it will produce a metallic sound. A dull sound indicates a crack or break.

Make sure before carrying out any work on the ULTRA Mk3 that the plug is disconnected

from the mains power.

Changing the Grinding Wheel

1. Switch off the machine and unplug from

the main power source.

2. Remove the grinding wheel protective

cover by unscrewing the 2 retaining

bolts with the allen key included.

3. Hold the grinding wheel firmly with one

hand and loosen the fixing nut with the

socket wrench.

4. Remove the old grinding wheel and

replace with a new one. Tighten the

fixing nut but do not over tighten - over tightening may cause the wheel to crack or

break. Only use grinding wheels with an outer diameter of 145mm and inner

diameter of 22mm. The grinding speed of replacement grinding wheel must meet or

exceed the RPM rating of the machine.

5. Remount the grinding wheel protective cover onto the machine. Never operate the

ULTRA Mk3 without the grinding wheel cover in place. Keep away from the wheel

when it is turning, and make sure no one is standing close, in the line of the wheel

rotation trajectory. If the grinding wheel vibrates on start up, turn off the machine

immediately and check that the grinding wheel is mounted securely!

6 Never try to stop the grinding wheel with your hands, even if you are wearing safety

gloves. The grinding wheel will cut through gloves and your hand, causing serious

injury.

Grinding Wheel Replacement

Screws Screws


1. Switch off the machine and unplug from

the main power source. Allow the work

light bulb to cool before replacing.

2. Prior to replacing the work light,

remove the grinding wheel protective

cover. Only use bulbs of the same type

and dimensions (230V, 15W).

Work Light Replacement

Do not clean the ULTRA Mk3 with aggressive detergents or aggressive chemicals.

Clean the ULTRA Mk3 from time to time with a dry paint brush or a brush in order to

remove any build up of grinding residues.

The machine is maintenance free and does not require any lubrication!

Maintenance of the ULTRA Mk3

The position of the chain holder assembly for grinding the depth gauge has to be set to

0°. Adjust the motor assembly to the position 90°. Grind the depth gauge with a flat file.

Grinding the Depth Gauge

Nut

Illuminant

Nut

Work Light


Before beginning to sharpen a chain please carefully read the following hints:

• A chain consists of several cutter links,

drive links and tie straps. The cutter links

consist of the cutting tooth and the depth

gauge.

• The pitch of the chain is measured in

inches. The pitch is determined by

measuring the distance ‘A’ of the three

rivets and dividing by two. Example: 8.25

mm = .325”

• Example of a chain description: .325”/1.3

- 56. Where .325” stands for the chain

pitch, 1.3 mm stands for the width of

drive links, 56 stand for the number of

drive links.

• The top plate cutting angle is important in order to chisel out

wood fibres and lift them up and out of the kerf. For most

chains the top plate cutting angle has to be 60°.

• The filing angle will be reduced each time the chain is

sharpened. To ensure ultimate cutting performance, the depth gauge has to be

reduced too. The depth gauge setting in respect to the top plate is approximately

.025” = 0.64mm. Make sure that all depth gauges are the same.

Hints for Sharpening

Cutting tooth Depth Gauge

: 2 A = 16.5 mm

= 8.25 mm

60°

Cutter Link Tie Strap Drive Link

.025“ = 0,64 mm

÷


• The filing angle must be equal for all cutting teeth. The angle has to be approximately

25° - 35° according to the chain type. The chain consists of left and right teeth.

• Sharpening teeth to unequal blade lengths can cause a side drift when sawing;

resulting in unwanted inclined saw cuts.

• Before you start to sharpen the chain carefully check it for damage, such as: bent or

broken drive links, broken cutter teeth, loose rivets or broken rivet heads. If any

damage is found, replace the whole chain or have the damage repaired by an

authorized service centre.

• Badly sharpened chains increase the risk of kickback.

• When the cutter teeth are reduced for more then 4mm the chain should not be used

any more and should be disposed of.

• A sharp chain when cutting properly will produce small chips of wood, but when a

chain becomes blunt fine saw dust will form during the cutting operation. You have to

sharpen the chain when you notice that excessive force is needed to cut through the

timber and the saw does not

“pull” anymore.

Unequal sharpened teeth

not ok ok


Portek Limited, Bleaze Farm,

Old Hutton, Kendal. LA8 0LU.

United Kingdom.

Tel: +44(0)1539 722628

Email: [email protected]

Web: www.portek.co.uk


Operators booklet ULTRA Mk3 v3.qxd:Layout 1 · Always keep your work area clean and tidy, ......

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Transcript of Operators booklet ULTRA Mk3 v3.qxd:Layout 1 · Always keep your work area clean and tidy, ......