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THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF OTTAWA OR IT’S SUCCESSORS. OTTAWA AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

Operator’s Manual

2 H.P. Log and Tree Saw

OTT-O-2 LOGSAW

How to Adjust Mixer.

The gasoline mixer is of the gravity feed type. As the fuel passes into the mixer it is mixed with air and fonns the explosive gas.

In starting the engine you open the fuel throttle valve and hold your left hand over the mixer, partly closing the air intake, or close the air damper, and turn the fly wheel over from cylinder -- to the right -- which draws the gasoline into the cylinder through the mixer and the engine is primed. If you close the air damper in starting, it should be opened as soon as the engine makes an explosion or two, but should the engine have a tendency to slow down when it is cold the air damper may be partly closed. When the engine is warm you should be able to run with air damper wide open.

After opening the air damper, close the fuel throttle valve entirely by turning to right and slowly open it, very little at the time, until point is reached where the engine will run with the least number of explosions in a minute and without black smoke coming from the exhaust or a popping sound from the mixer. Black smoke, smelling strong of gasoline, coming from the exhaust indicates you are using too much fuel. A popping sound at mixer is caused by not enough fuel.

When engine is running on load, the suction of piston is greater than when it is running empty and you can cut down fuel some. Use the least amount of fuel the engine will run on and pull the load; it will save fuel and engine will run better.

When engine is running without a load it should make an explosion and the fly wheels make a number of revolutions before another explosion is made. When the engine is running on full load the explosions will be made more frequent.

The Governor.

The governor controls the speed of the engine and is of the fly ball type. When the speed of the engine slackens, the weights in fly wheel are drawn together by the governor springs, which allows the detent lever to release the side bar. When the side bar is released, the exhaust valve closes and a charge of fuel is drawn into the cylinder and fired by igniter. As the engine gains speed, the governor weights fly apart and cause the detent to hook up on the side bar, again holding the exhaust valve open. When the exhaust valve is held open, no fuel will be used.

Keep the side bar guides well oiled, also all governor parts and see to it that they work freely at all times.

To increase the speed. of the engine, tighten the governor springs; to reduce the speed, loosen the springs.

Always keep the governor springs set so engine runs up to normal speed to get full power.

Clean off all paint, clean springs of paint, too.

Bearings.

The main bearing and center crank bearing ar die babbited from a special high grade babbit and if kept tight and well oiled there is very little wear on them.

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Directions for Setting Up Tree Saw.

Take out the large cotter key holding master gear on the master shaft of engine. Slide the large gear off shaft and along with it will come the saw blade, rods, etc. Do not remove blade. Then place large gear over shaft that is held in end of Tree Saw Frame.

If you wish to cut trees off level with the ground, tum gears and saw frame over. Take off Saw Support (TS 22). If you wish to saw trees off above the ground, leaving a stump, then let the gear and blade remain on the top, allowing the saw blade to rest on the Saw Support (TS 22).

When one cut through a tree is about finished, stop engine and take out blade. Then drive in wedges and fall tree in the desired direction. It is a good plan to drive wedges in the tree while cut is being made as it will prevent the saw from pinching and make cutting easier.

When ready to set for next cut, place saw frame against tree and fasten securely by tightening hand wheels. Then place engine and connect by the tumbling rod. Caution: Be sure rod fits into each tumbling rod casting as far as possible and that set screw holding tumbling rod on engine end is fastened securely.

1." e] aft"!· J\Ugust 1st. H119. > S ( <.<0 ~.

U~('(l prior to Aup:ust. 1st, 1919. ~

q!§-lSlll I'J

n

~tS80 .~

~.~ \.577 rs 78 y:~.~15

l.5.76

. :l'(o...NUlle.< Prloa. 'L.s.-·-} -" ··Bft"e· .wHb·oCaps·and bearinp-"' .... _. __ · -._~;._$15:.0 L.b.- 2 Fly wheel on· magneto Hide .... __ ._. __ . ___ . 8040 .L.S.- 3 Fly wheel on' saw bhtde'side :.:..._...,. ___ . __ .. _ '9.60 ·L,S.- <I .Small gear Ilnd ·clutch plate .. _ • "11:00 .L.B.- 6-· Cross head ...... · .•.. " ... l ... ..:.,._ .. _ .. '-,. ' .• ;80 L.S.- 6· Large ·Gear .......................................... ~ ____ ... _. 8.60 L.8.-·7 End·. Strap complete ._ ..................... _ .... ____ . 8;00 L.S.- 8.. Eccentric' Crank ....... _ .................... c ••• -' ••• :: ••• __ .'-. 4.25 L:S.-9 Rear EccentTic SI.mp· ...... _ ............... _; ....... __ .~_. 2.00 L.S.-IO . Front Eccentric Strap .............. : ............ _oo .. ___ ... 2.00 L.S.-H- . Lo~ Hook ·hllnd wheel ................................ _oo_....... .T\) 1,.8.-]2 Clutch ftht"e WRsher (LRrge) ............ _ ............. c·.. .75 L.B.-HI·· Clutch Bprin~ .................... ; ................... _ .. ;_........... :50 L.S.-14 Clutch fibre Wnshcr (Smnll) ................... _........... .30 1,.'8.-15 Clutch 1ron Washer" ......... : ...... oo ...................... ,.;.:.. : .. ~~ L.S.-i6 . Clutch Nut ............................ : •. ; .... oo .. : .. oo. __ . __ ... ~.oo .. . L.R-Ii 'Cotter Key for Clutch Nut" ................ _oo -. :to L.B.-IS· '.. I,arl!'e 'Rear shaft ............................ __ .. _'-___ ........ 1.25 L.S.-19 L:trge Gear ShRft Set Screw ............ _.~ .. oo .... oo.oo.... ;20 L.S.-20· Larl!'e Gear Shaft Lock Nut'for Set Ecrew._.... ,10 L.S.-21· Large Genr Shaft Wl\sher ................. ~ ... _.......... il0 L.S.-2!! Lar!,!,e (;ejlr Shaft Cotter Key ....... ,oo.................... .02 L.8.-23 Eccentrlr' Crank Cap Screws. ea .. _ .. _._ ...... ~~... .20 L.R.-24 Eccentric Crank Washer .. : ............... ..:.. ___ .. _:... ;10 L.S.-25 Eccentric Crank Cotter 'Key : ......... __ . __ . _. _ ... ..:.... .02 L.8.-26 Eccentric Strap Stud .(Upper)_ ........... ~............ .SO L.8.-27 Eccentric Strap Stud (Lower) ........ _.~ .. __ ._....... .30 L.8.-2l! Eccentric St.rR}1 Stud Nut (Upper) _.~ .. :.:..: ....... ~_. .10 L.S.-2!l Eccent.ric Strap Stud Nut. (Lower)_ ... _ ........ :.... .10 L.8.-30 Parallel Hod (Upper) .................. _ ......... __ ... _....... 1.20 1,.8.-31" Parallel nod (Lower) ...................... _ .... _ ..... _ ... _ .... f.20 L.8.-32 Cro~s Head Bolt Nut and Washer (Upper) .... _.. .20 1 •. 1'.-3:1 . Cross Head Bolt Nut nnd, Washer (Lowet) __ ... .20 I.. 1'.-14 Hook up .............................. _ ..... _ ........... _ ... _ ..... _., .90 't~-= 4' Ii t. T'~......;u, ...... ,kr 9~~· •••••• -u •• n ........................ _ ........ __ h_.. .40

,.1'.-3(; Hook Up Holt and Nut (each) ............... ___ ....... :. .20 L.8.-3i - Hook Up llrace bolt lind nut (Upper) ...... ,... .20 IJ.S.-3R Hook UJl brac!' bolt and nut (Lower"or skld) .. _.... .2:' L.8.-3!l lIool; tTl' (,haln .. ........... _- .............. _ .... _ .... _ .. ,... ."0 I.'!:;.-40 1'l".... (;ufdc ....................................... _. ___ .... _ .. _.. .!l5 L.K-41 Raw Guido holts and nuts (2) ........... _ .... _ ......... _.. .25 1,.8.-42 Pitman Itod-ollk ...................................................... .50 L.8.-13 Pitman cross·head washcr .................. _ .... _............ .10 1,.8.-44 Pitman cross head .cotter key _ .. ~ .... ,...................... .112

L~:-:~ t~~ sS~~et ~~;·i"·::::::::::::::.:::::::~:::~:::::::::::::=:::::=:: :~~. 1,.8.-4;" 1.oI'S"ikc Washer ........................ _ ....... ::................. .02 L.R.-4R Frc-nt Axle Brace .... : .......... : ........ oo.......................... .<10 ·L.S.-4!! Front Axle Brace holts .and. nllt5 .. ~ ... : .. _ ....... :... .25 I,.8.-fiO Handl!' on end of skId _ .. _ ................. _._ ............ ,.. .40 L.8.-51 Handle holt ............ _ ... _ ......... _.:,;. .... ____ ......... _. .29 J,.8.-52 Handle nut ............. :<.:._ ....... _ .... oo .......... , __ ....... oo_ .fl5 L.S.-;;3 HandlE' washer .............. ~ .... ~ ........... ,.. ___ ...... __ .02 L.8.-54 1,01; Hook lind Chain ..................... :~~ .... _ ........... _ 3.00 L.f->.-!i;; Threl1<ied Iiool; ........ _ .............................. _ •. _........... 1.10 >],.S.-5G 1,0::: Hool, BloC'!; ........................... .-........ ..,............... .20 ),.8.-5; Log Hook Hand "'heel Wl\sher .~ ...... : ............. .;... .03 l.t.~.--;;R .\ :'<"1(' .• & •••• _._ •• _._._ ......... _ •••• ~ ... _ .............. _.. 3.1ft I,.~.-5!' Axl(' 1\kid holt. Hilt and washer .... .:. .... :: ... oo............ .25 I..~.-(jO Axle Stllh ................................................................ _.. 1.40 ·1,.~.-.. r.1 A xlp ~tlllt nolt ..................................... : ............... _... ',40 I,.S.-li!'! Axle l"tuh Holt Wa~hcr. ............................................ .03 I..S·-6:\ ,\ x It, Rllth Holt },oc.k Nut ...................................... .1(1

'L.S.·--F·1 ,\xle Stul, Holt :'\ul.. .......... oo ............ -..... , .. -........ r.. .JII ·L.R-G;. Axle ·~tub Bolt Pin ........ _._ .. _ ..... ~ ... _______ .40 L.S.-tir. Hoad Wheel I,eft or Ri.ght • __ ._. __ ...;.._......:.... 3.15 1,.S.-ti7·· Jto:ld Wheel W:l!lher .................... oo .................. _ .... _. .20 L.S.-fiR Hoad Wh{'el Colter Key .................. _ .......... ~......... .10 1,.S.-f.9 . Fuel' Tllnk ; ........ _ .................................. __ .......... _ 2JW

··I.:8.-iO Fuel Tanl, Banels ........ , ..... _ .... " ...... _ ... _ .. ___ .... _.:. .411 1,,8.'-':'il Fuel Tllnk ERnds Screws and ·Nuts _"' __ ~_"" .•. 10

·1 •. S.-:"i2 Fuel 8t. Elbow .............................. _ ... --'-00. ___ .__ .25 1,$.-.3 }'uel PhIl' Rhort ............................... _ .... _ ... __ ..... .30 I .. S .. ~.3A - FlIl'l Pir,e. COllllt'r .. " .............. ".:._ ... oo .... _ .... _.......... .!l0 1 .. 8.-;4 Fill'! lIlixer complete ......... oo ............... _ .... ~ ... _ .. _.. 5.7;' J,.~:-i!i . Fuel IIllxer Body ...................... __ ...... _ .. _ ..... _ ..... _.. 2.90 L.R.-ir, Fuel JIIixer Priming Hod .... __ ........ __ .. __ ............ .60 L:~.~" 'Fu('1 Throttle ......... ·· ....................... oo._ ... _............... . .90

. },.R-,-1R Jo'uel 'Throttle St\lffln~ NIII ..... _ .. _.oo .. : ..... _......... .40 . I,.K-i!l . Needle YnlTe. pomllieto with fly and nuts .......... 2.50

·L.S.-80 NeeolE' Vnlve W:1shers Ilf. _._._.oo_ .......... _.......... .30 I..S-Ill Neodle YI\I\'e (;\Iide ................... _.......................... 1.25 l..~.-.. R~ TI~nl: !-'1I1'l'o:1f'. enl"ll ..... · ....................... oo................... .50 1,Y.-.-R:: Fill'! l'iJlt'. Lnn~ ........................................... _............. .60

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No. :-;1\1111'. PrICIl. 11.- 1 Cylinder :lnd Hopper ...... - ..................... - .... _ .... _ .. $1%.OG 11.- 3 Drain PI~ ....... - ......... _.. _ .le J!:.- '4 Head Stud and :-':ut. long.............................................. .:!U E.- 'I Head Stud and :'\ut. short ...................................... .:!H E.- 6 Ignitor Stud and Nut. ...... _ ........ _. .___ .Z\J JI.- T Cyl. Lub. \ complete .... _. __ . ___ ._____ !.!t E.- 7 A Luu. Giuss. IlIr~e ........... __ ..• ___ ... ___ .. __ .• 80 E.- iB 1·ub. Glass. Kmnll ............ _ .. _ ........ _ ... ___ .. _ .30 E.- 19 t:ylinder to Base Stud and Nut ...... ___ ...... _.... .20 E.- 12 Main Bearin~ Stud and Nut _ ... _ .... ___ .. __ .. .20 E.- 13 Cam Gear Pin ................ _._._ ............. _ .......... _.... .60

. Je.-_ 14 Cam Gear Pin Set Screw IlDd Nut _ ... ___ .. ___ .20 ·E.- Hi Cam Gear ... _ ...... _ ...• _._._. ____ .. _._ .. _ .. _... 4.50

i If ~t1~i~: ia~~tyCa~. :N~t -.~=-~:~:== ..... :: .:: Ag E.- IU. Cylinder Head-complete ._ ... _. ___ .. _ ....... _ g.50 •. - I. Exhaust valve .. .• ____ ... _ .. _ 1.30 E . .,.... U Intay~ Valve ........ ___ • _______ ....... _ .. 1.30

~:= ii ~x~k~tV:;;!veSp~k~n~ ... ==::::=:==_-=:=::. :;: E.- 24 Intake Valve Sprin~ Washer _____ ... _ .. __ .. .20 E.- 25 EXhaust Lever Bracket ._ .......... _ .. _ .... __ ......... _.. .90 E.- 26 Exhaust Lever- ...... _ ..... _ .. _._. __ .. _._............... .60 E.- 21 Exhaust Lever Pin ............ _._ ... _ ... ___ ...... _.. .20 E.- 28 EXhaust Lever Set Screw _. _____ ............ _ .211 E.- 29 Cylinder Hea.d Flange .. __ ....... _._ .. _ ... _............. .80 E.- 30 Flange Stud and Nut· ._ .. _ .• _._._. ___ ....... _ .20. E.- 31 Piston ..... _ .................. _ .•. _ ............. _._.................... 4.60 E.- :12 Piston Rings. each ...... __ ._ .. __ ........ _ ...... _ ........... _ .90. E.- 33 Piston Pin .................. _ ....... _ ...................... _ ....... _.... 1.0.0 E.- 34 Piston Set Screw and Nut ._ ........ _ .. _._ .... __ .%0 E.- 35 Connecting Rod and Cap _._ ... _ ............. _ ............. _ 5.20. E.- 36 Piston Pln Brass B~hinl{ _ ................. _-_ 1.80 E.- 38 Connectlnl: Rod Cap Stud ....... _ ........ _ .. _._ ...... _ .20 E.- 39 Connecting Rod Grease Cup ._ .• __ . __ .. __ .40 11.- 40 Main Bearing Grease Cup._ ... _ ...... __ .. _ ... __ ... .40 E.- 04.1 Crank Shaft .......... _ ............................. _._ ... __ 1.40 E.- 42 Crank Sbaft Gear ................................... __ ......... 3.20 ~:= :~ Crank S:halt near Key ................ _ .. : ......... _............ .~()

Governor Collar ............ ____ ......... _ .. _........... .90 E.- -46 Fly Wheel Key .......... - ........... _ ............................. _.. .3() E.- .j Governor Frame ...... _ ........... _. __ ......... _ ... _...... 1.20 E.- -48 Governor Wehtht Pin .............................. _ ........ _.. .20 R.- 49' Goyernor Weight ........................................ _ ...... _.... ..cO B.- 50. Governor Weight Spring,. eAch _ .... _ .............. __ .20 E.- 51 Tt'nslon Bolt and Nut ................................... ;............ .20. E.- 5! Speeder Lever ...................... _ ............... _ .... _ ... _...... 1.60. E.""':'" 53 Speeder LeYer Adjustln.: Screw and NuL........... .30. E.- 54 Detent Leyer With Tips ............................ _ ..... _... 1.00 ]1:'- 55 Dttent Leyer Tip ._ .................................. _._........... .20 E.- 56 Detent Tip Screw and Nut ....................... ..:............ . .20 1:.- 51 Detent Leyer- Roller ...... _....................................... .20. E.- 58 Detent Lever Spring ...... _ ... _ ....... ___ ............ .26 E.- 59 Detent Lever Pin ................. __ ............. __ ............. .29 E.- M Side Bar only ...... : ... : . .,.. .......... _ .... __ .................... :.. 1.19 E.- 61 Side Bar Detent Plate ............................ ,................ .20. E.- 62 Detent Plate Screw and Nut ................................ '.10 B.- 63 Cam Roller ......................... : ................ _................... : .50. E.- U Cam Roller Stud Bolt .. _ ... _ ..... _._ .............. _ .. 20 E.- 66 Side BlIr Spring ................................ :......................... .:10 E.- 91 Gasoline Mixer with Valve ._._~ ........... ; ........... ~. ..50. E.- 98 Chel'k ":1 I.e. Gasoline ..... _ ........................ L ....... _.. . .20. E;- 99 Check Valve Cage ....... _ ... _ ......... _ ... : .... ,,~ .......... _.... ··.GO E.-IOO Fuel Throttle ValYe, Gasoline ...... .:. ..... _: .... _ ............ - .Oll 11:.-10% Startinl{ Crank ........ _ .. _ ....... _ .. _ ..... :._ ........ _......... . .to E.-lOS Asbestos Packing for Cylinder Head ... : .......... _.... ".50 F,:.-11~ Igniter Pllcking ................... ~ ...... _ ........ ;................. -' .20

WHEN ORDERING ENGINE PARTS. ACCESSORIES."·f ; "\' OR" ~UPDLIES..· .., ,; •... 1st. Always glYe the NUMBER and NAME of the part.- r : 2nd. The ENGINE NUMBER. whleb Will be found' ·on ·tlIe

end of the crllnk shatt and on nllme' plate •. ' It you. do not know the HORSE· POWER lind NUMBER of your engine';'return the old parts, charges prepaid. It you de not give- ua complete Informll­tlon. It wtll be necessary tor us tomt. to you, which. wUl mean i. delay' In fllling your order. .' :" . .. .. ; ...

3rd. In case you are not th .. · original . purchaser, ;. pleal(e !pye us name and Address of orhtlnal' purchaser. . 4th. Send draft, check, polItal or express order, or IItampl. (or the tull amount of the order, lidding suftlclen~ amount for postAge, It parts are to go by parcel post. Unless sufficient Wlount Is paid for parcel post. thtJ parts will be sent out. express oollect. If over pllyment Is ml1de. we wlll retund' difference., 1

5th. If IIny pnrt of your endne III not listed. return ·old llArt or !lend full lIesl'rlption. !lO we may not be delayed.,ln (lor­,. .. ~t1v fllllnl! YO'lr or<\(·p. We will not ship repairs unless full nayment accompanies order

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