Clinton R-55-G1 Manuale utente

H-55-ffI

B-65-ffl

CL'NTON

lllustrat ed Parts List

AND

INSTR,UCTION TIANUAL

Clinton

INSIRUCTION AAANUAT NO. 403398

Engines Corporotion

Choinrow-Ou?boqrd Divirion

CLINTON, IYIICHIGAN

PilCE .20

TABTE

INTRODUCTION AND

lntroduction

Specificolions

Principle of 2-Cycle Engine Operotion

Assembly of Guide Bor ond Choin

F CONTENTS

GENERAT INFORMATION

2 Fvel Preporolion ond Lubricotion. . . . . .

2 Choin ond Guide Bor Lubricotion. . . . . . ,

3 Sofety Precoutions.

4 Breok-ln Period

STARTING AND

Conlrols

Slorting Procedure

Corburetor

Bucking Cut - Smoll Logs .

Bucking Cut - Lorge Logs. . .

SERV!CE AND

OPERATING PROCEDURE

Notching ond Felling Cut

Choin Mointenonce ond Filing lnstructions

Guide Bor Moinlenonce

Service Tips .

Bow Sow ond Helper's Hondle

ADJUSTMENTS

Moinlenonce

Unit ldentificotion .

lllustroted Porls Seciion .. .

Fuel System

Mogneto Assembly & lgnition. . .

Cleoning Volve Porls - Exhoust

.. ll

t2-26

By following the inslructions in this monuol you con look

forword to dependoble service from your Choinsow.

Quolity mode, iime tested your Choinsow is designed to

provide efficient culting on o greol voriely of iobs. lt

is checked for high stondords during oll phoses of pro-

duction ond ossembly. Treot your Choinsow right, ond it

will become the mosl voluoble lool you own.

For periodic rervicing ond oll mbior repoirs, you should

consul, the Aulhorized Clinton Service Stotion in your

INTRODUCTION

SPECIFICAT!ON5

oreo. Here you will find foctory-troined mechonics, genu-

ine ports ond prompi, efficient service ot your disposol.

There ore Clinlon Service Stotions throughout the United

Stoles, Conodo ond mony foreign counlries. Consult the

yellow poges of your telephone directory for list of

Authorized Clinton Service Stotions. r

For odditioqol informolion oboul your Choinsow pleose

feel free to write directly to the foctory.

ENGINE - Clinton two cycle, one cylindsr, qir'cooled.

BORE - 2Ys" - R65-G1 l7/e" - R55'Gl

STROKE _ 1%",

FUEI - Oil qnd Gosoline mixed.

SPARKPTUG - Chompion H lOJ or equol, Gop .025

inches.

POINT GAP -.020 inches, nominol $tting.

IGNITION TIMING - Fixed.

TYPE OF VAwE - Reed.

lDtlNG SPEED-Approximotely l50O lo 1800 R.P.M.

TYPE OF BEARINGS - Needle.

OPERATING SPEED - App. 4800 R.P.M.

TYPE OF CARBURETOR - Diophrogm.

FUEL TANK CAPACITY - 'lIlz quorts.

FUEL RATIO - 3/a pint of SAE $30 to I gol. gosoline for

first five hours, Yz pinl to one gollon thereofter.

RECOMMENDED GASOIINE - Any sood srode (non-

leoded).

RECOITTMENDED Olt GRADE - SAE S30 outboord

motor oil.

TYPE OF IGNITION - High tension flywheel mogneio.

TYPE OF STAR.TER - Recoil.

TYPE OF CTUTCH - Automotic Centrifugol.

CHAIN OILER CAPACITY - One pint SAE #30. (See

poge 5).

GUIDE BAR TENGTHS - From ]2 inches lo 26 inches.

OPERATION OF THE T\MO CYCLE ENGINE

tln o lwo cycle engine, intoke, compression, power

ond exhoust ore completed in two strokes of the

piston. A power stroke results wilh every revolulion

of the crqnkshoft. On lhe upword stroke of the piston,

o portiol vocuum is creoted in the cronkcose. (See

Figure No. l)

First, the vocuum ond outside oir pressure couse the

reed volve between the cronkcqse ond lhe corburetor

to open. The oir-fuel mixture from the corburetor flows

in to the engine crqnkcose. Then, the downword move-

ment of the piston couses the reed vqlve to close

while conlinued downword movement of the pision

compresses the fuel chorge in the cronkcose. Neor lhe

bottom of its stroke lhe piston uncovers the intqke

by-poss port, which connects the combuslion chomber

ond the cronkcose.

As the piston moves upword on its stroke, it posses

the intoke port, closing the porl opening. lts continued

upword movement couses the fuel mixture in the

cylinder to be compressed. At the some time o new

fuel chorge is drown into the cronkcose. As the

piston neors the top of the compr:ession stroke, the

fuel mixture in the combustion chomber is ignited by

the spork. The explosion ond exponsion of goses

forces the piston down on its power stroke. Power

is not delivered for the full length of the stroke. Some

time is required to rid the cylinder of burned goses,

so lhot it moy receive q fresh fuel chorge from the

cronkcose.

As the piston neors the bottom of its stroke, it un-

covers ihe exhoust port opening slightly qheod of the

intoke port. This permits toking odvontoge of the

pressure of the exhoust goses in the cylinder, which

ore still comporotively high, ond ollows them fo

stort escoping. Further downword trovel of the piston

uncovers the intoke by-poss port. The incoming chorge

ossists in forcing the exhoust goses out of the cylinder,

lo complete the cycle.

The chief ottributes of the lwo cycle engine ore its

lightweight, low cost ond powerful but simple opero-

tion. With only three bosic moving ports (cronkshoft,

piston ond rod), mointenonce costs qre ot o minimum

while efficiency is ot o moximum.

COMPRESSION

POWER

EXHAUST

Figure No.

'r0.

ASSEMBLY OF GUIDE BAR AND CHAIN

Slide the guide bor over the mounling studs to

rhe full length of the guide bor sloi. (See Figure

No. 2)

Ploce the choin oround lhe guide bor so thot

cutting edges of teeth on top of the guide bor

point owoy from the engine unit.

Ploce the Choin over clutch drum onto the drive

sprocket, then ploce drive links into bor groove.

Pull the guide bor out from lhe engine unit until

the choin slock is token up. Moke sure ihot the

choin drive links qt the bottom of the bor ore

properly seoled in ihe bor groove.

Ploce the lension plote on mouniing studs with

the flot pod ogoinst the guide bor.

Moke sure thot the choin fension lug, locoled

in the choin tension plote, fits into the slot-

ted holes.

Pul woshers qnd nuts on lhe guide bor mount-

ing studs lo moke them snug, but not light,

ogoinsi the guide bor mounting plote.

While holding with upword pressure ot end of

guide bor, turn tension odiusting screw clock-

wise until the choin hos o free sog of 7g inch

from ihe boitom of the guide bqr on stellite tip

bors. pn roller nose bors lhe choin should be

snug. lf the blode is nol in the up position os

high os it will go ogoinst the guide.bor studs,

it will couse excessive weor on ihe top of the

guide bor closest io ihe sprocket.

Securely tighten the mounting stud nuls ond

then re-check for proper choin tension. lf the

tension hos chonged, then loosen the mounling

slud nuls ond repeot the procedure outlined in

step 8.

Be sure the choin is properly tensioned oi oll

times. Check it often. A choin thot is too tight

will interfere with proper cutting ond will couse

serious domoge to the guide bor ond the engine.

CAUTION: Check ond moinloin choin tension for

long lifu ond best operotion. Use extro core with

o new choin until the slrelch, which is most

noticeoble in ihe first hour of cuiting, is elimi-

noled.

CAUTION - Never Adiust Choin

Tension While Engine ls Running.

BU}IPER,

CHAIN

TENS!ONEN,

Figure No. 2

GUIDE

BAR

SruDs

FUEL PREPARATION

Correct fuel mixture is one of the most importont

points in operoting your engine. Follow these instruc-

tions corefully, ond DO NOT POUR UNMIXED GASO-

LINE OR OIL INTO THE FUEI TANK.

Iype of Oil

Use SAE {30 motor oil outboord. A detergent oil or

oil contoining odditives is not odvised.

Type of Gosoline

A good grode of regulor gosoline, ovoiloble ot your

locol f illing stolion, is recommended for use in your

choin sow engine. High octone or premium fuels offer

no odvontoges ond ARE NOT odvised.

Mixing Rqito of Oil to Gqsoline

Thoroughly mix 3/e pint of oil with eoch gollon of

gosoline. This rich oil mixture moy couse difficulty

AND LUBRICATION

with idling, but it is necessory to properly weor in

the vorious ports of the engine. After 5 hours breok-in

rotio moy be chonged to not less thon 7z pint to I

gollon of regulor gosoline.

Choin qnd Guide Bor Lubricqtion

A positive oction oil pump locoted in ihe lower por-

tion of the f uel tonk (See Figure No. 3) provides omple

lubricotion to ihe cutling choin ond guide bor. Fill

rhis oil reservoir wilh new SAE #30 oil, being sure

lo keep rhe oil level in the reservoir obove the inioke

tube of the oil pump. When the reservoir is filled ond

cop reploced, push the oil pump plunger o couple of

times until pressure is felt, or until you see oil oppeor-

ing on the guide bor opposite the oil fitting in the

moin strut. ln extremely cold weother, or when cutting

wood which contoins o lot of pitch, sop or resin, use

o 50-50 mixture of kerosene ond oil in the oil reser-

voir. This will provide good lubricotion os well os

keeping the guide bor groove ond choin €omporo-

tively cleon.

SAFETY AND FIR,E PRECAUTIONS

Your Choinsow is well-built for moximum sofety ond

efficiency, but corelessness in operotion con couse

occidents. Reod the following suggestions corefully,

ond remember them os you work with your sow.

'I . Do not stort the engine in o closed room. Hove

omple ventilotion ot oll times.

2. Do not touch the choin when lhe engine is

running even ot o slow speed.

3. Keep engine odiusted to on idle speed which

stops the choin completely.

4. Do not move lhe choin from one locotion to

onother without first stopping the engine.

ln order lo obtoin moximum efficiency ond service

from your choin sow, it is necessory thot the engine

be operoted during o breok-in period of opproxi-

motely five (5) hours. Never operote the engine with-

out lood or ollow it to become overheoted. Proper

breoking in of key ports will hove much lo do with

Be sure thot the spike bumper (obutment strut)

is flush ogoinst the sowing log to keep the

engine unit from being pulled ogoinst the log.

Do not operote your choin sow when it needs

repoir.

Do not ollow the sow to run while on o cement

floor.

Do not'run sow when it is dull or improperly

filed. .

After refueling, move the engine o few feet

owoy from the fueling site.

Keep choin sow cleon of dust ond inflommobles,

ond check to see thot spork plug ond electricol

connections ore tight.

the life of your engine. Be sure to check often for

loose nuts ond screws ond moke oll necessqry odiust-

ments. Periodic inspection ond service by your outhor-

ized Clinton Service Deqler will result in long life ond

good performonce of your Choinsow.

10.

Nolc! Never Corry the Choin Sow from Ploce to Ploce with the Engine Running.

BREAK.IN PER, IOD

CHAIN SAW CONTROLS

TUBUTAR

HANDLE

OIL TANK FUEI

CAP CAP

TANK

Olt PUMP

(CHA!N OITER)

FUEL

SHUT OFF

swrTcH

THROTTLE

GUIDE BAR

AIR CTEANER ;NDUCT;ON

SYSTEM

SPIKE

BUMPER,

FIG. 3

Moior controls on your chqin sqw ore conveniently grouped

oround the hond grip ossembly for finger tip oction. You

will find your iow eosy to monoge once you ossociole ihe

following conlrols with their locoliont on the sow. (See

Figure 3.)

THE RECOIL STARTER-Locoted on rhe left side of ihe unit.

A rlight pull will engoge the storler with ihe engine ond

o rpring disengoger it when lhe lension is relieved. CAU-

TION: The rlorler coblc when pulled out, should not be

releqsed obruptly qnd ollowed io rnqp bock into its rockct.

Releore slowly to permit complete re-winding.

THE CHAIN OllER-lilonuolly operotcd, plunger rypc oil

pump, locoicd in thc lowcr porlion of the fuel lonk iurt

obove the hond grip. Thb system forces oil to thc guide

bor qnd choin for poritive lubricotion.

FUEI SHUT-OFF VAVE-On the bottom of the fuel tonk

o? ihc lower right. To open, lurn counler-clockwisc unfil

o rlight lcnrion is noticcd.

THE THROTTLE CONTROL - Trigger-type, locoted on the

hondle grip. The engine speed, or lhrofile opening, is

increosed by squeezing the lrigger upword hrto the hondle.

IHE HIGH SPEED MIXTURE ADJUSTMENT SCREw-Locoled

on ihe left side of the cqrburetor. The odiusiment is used

to obtoin proper fuel ond oir mixlure, moke ihe engine

run smoolhly ond qchieve moximum Power,

THE IDLE FUEL MIXTURE ADJUSTMENT SCREW - This de-

vice 's found on lhe left side of corburelor. lt is u3ed lo

obioin smoolh ond proper idling speed'

THE CHOKE LEVER - Locoted on the left side of the

corburetor iust obove lhe odiustment screws.

THE FUEL PUMP - Locoted in lower seciion of cor-

buretor moinloins proper f uel supply to the corburetor.

THE IGNITION SWITCH - Toggle-type, locoted directly

under fuel tonk.

BLOWER

HOUSING

RECOTt

STARTER

STARTING

ADJUSTMENT INSTRUCTIONS

To properly odiust corburetor for best performonce

the engine must be thoroughly worm.

INITIAL ADJUSTNAENTS

To stort o new engine: First, corefully close by turning

clockwise, both ldle ond Moin Adiuslment Screws

(Ref. 7 & 19)-locoted either below oir intoke opening

or ot left side of corburetor. Now open Moin Adiust-

ment Screw (Ref. |9) counterclockwise opproximotely

one ond one-quorter turns ('l %). Open ldle Adiustment

Screw (Ref . 7) three-quorters (3/t) turn. Bock ldle Speed

Regulotor Screw off its contoct with Throttle Stop Lever

then turn it inword obout one (l) full turn so qs to

slightly open Throttle Shutter (Ref. I I).

Open fuel shut off volve, choke corburetor, put igni-

tion switch to "ON" position, squeeze throttle trigger

ond give firm quick pull on storting cord. When engine

fires, {ecreose the choke slightly ond eose off the

t. Fuel Inlet

2. Fue! Pump Body

3. Fuel Pump Diophrogm

3A Fuel lnlet Check Vqlve

38 Fuel Ouilei Check Volve

4. Fuel Pump Gqsket

5. Diophrogm Cover Gosket

6. Diophrogm Chqmber

7. Idle Adiusimenl Screw

8. lmpulse Chonnel

9. ldle Fuel Adiustment Orifice

l0A Primory ldle Dischqrge Port

IOB Secondory ldle Dischorge Port

I I. Throttle Shutter

12. Moin Fuel Adiustment Orifice

13. Body

14. Venturi

t5. Mqin Fuel Dischorge Port

t6. Choke Shutter

17. Fuel lnlet Supply Chqnnel

t8. lnlet Needle & Seot

I9. Moin Adlustmenl Screw

20. lnlet Tension Spring

21. lnlet Contro! Lever

22. Fulcrum Pin

23. Atmospheric Vent Hole

24. Diophrogm Cover

25. Diophrogm

26. Strqiner Gqsket

27. Fuel lnlet Screen

28. Strqiner Cover Retqining Screw

29. Slrqiner Cover

PROCEDURE

throttle trigger. Do not roce engine, groduolly de-

creose the choke to full open position os engine

worms. Then moke severol test culs ond if necessory,

io keep engine from stolling, slightly increose opening

of the Moin Adiustment Screw (Ref. l9).

FINAT ADJUSTMENTS

Now close throttle ond reodiust ldle Speed Reguloting

Screw so engine idle speed is ot opproximately 1800

ro 22OO RPM ond without choin iurning or lhrottle

trigger being depressed. Then, slowly reodiust ldle

Adiusiment Screw (Ref. 7) to obtoin smooth ond

even engine performonce, ofter which enrichen the

mixture slightly obove this setting to provide sufticient

fuel for quick occelerotion. Finolly, with sow function'

ing under o cutting lood, slowly reodiust Moin Ad-

iustment Screw (Ref. i9) to obtoin even cutting speed.

This setting will vory between one (l) to one ond

one-holf (l7z) turns open.

FIG. 1,

THE CUITING OF SiTATI UIIBS IS CALLED PRUN'NG.

Pruning Before Felling: Cut from bottom of limb-lorger

limbs should be undercut, with the finol cut mode from the

iop severol inches forther out from the trunk.

Pruning After Felling Alwoys keep the sow blode moving

owoy from lhe operolor.

BUCKING

BUCKING CUT - Smoll Logr

Try bucking o few slove wood lengthr, just lo get the feel

of your sow.

l. Select o suitoble log opproximotely 12 to 18 inches

in diometer.

2. Stort your sow occording lo inslruclions.

3. Ploce one hond on the hondle grip for complete control

. of the engine. Use the other hond on the tubulor hondlc

lo supporl lhe unit.

4. Choin should be ollowcd to feed itself with o minimum

omount of pressure on the unit by lhc operolor lo

ochieve best culting rerults.

5. Ar the cul is completed, releose the throttle which dis-

engoge3 the clulch.

6. Continue lhis bucking proclice until you ore well oc-

quointed with lhe row.

BUCKING CUT - Lorgc logr

To cut o log up to lhe copocity of thc Auide bor, rlqrl ol

the top of the log.

l. Roise lhe powcr unil ond lowcr lhe cutting mcchonirm

to begin your cui on the rids of rhe log thot focer

owoy from you.

2. Notice thot rowing oction holdr thc sow ogoinrt thc

log. (Sec Figurc No. 5).

3. After tilting thc unit lo lhe moximum onglc (obour 35o)

for the initiol cut, pull the choin row toword you.

4. Repeot this rocking molion until rhc cut ir complctcd.

5. CAUTION: As lhe cul neorr completion you musl bc

coreful to keep the rowing unil from cnlering thc Around.

li is rometime possible ro roll the log forword ond com-

plete the cul from the opporite side, bul ofien lhir con-

not be done, ond exlreme core is nece33ory.

6. Releoce lhe throttle or you complele lhc cul, qnd thlr

oclion direngoger lhe clutch.

NOTCHING AND FE1TING

For lhir type of operotion rololc lhc guide bor in q hori-

zontol porilion ogoinrl the lree. DO NOT ollow rpcctolorr

within rix fect of the choin whcn it ir running.

l. Remember thot thc undcrcut nolch guidcr rhc foll of

lhc lree ond should be modc with corc. By holding your

3qw ol thc dcrired ongle ony typG of nolch con bc

mode, bu? plon corcfully. (Scc Figurc No. 6).

2. Ar you 3tort your fclling cul rcmc,nbcr lo IEAVE HOLD-

tNG WOOD (Scc Figurc No. 6) or lhc trcc mighr rpin

oul of conlrol.

3. Think befors you cull

OPERATOR MAKING FINAT CUT (FEIIING} PREPARA.

TORY IO FEI.IING THE TREE.

FELTING CUT

Dircction of loll ir

controllcd by ihc

Nrul

CHAIN TIAINTENANCE AND FITING INSTR.UCTIONS

Hold File Holder

Ass'y Level. (90'to

Side of Guide Bor.)

FIG.

FrG. r0

Hold File [evel

(90'ro Side of

Guide Bor.)

Hold Filc lcvel

Guidc Bor.)

. l9O' ro sidc of

FILING AI{GLE 35O

FIG. t2

l. Ploce choin in choin filing vise or stroight edge vise if

possible.

2. Ploce file holder ossembly over rounded cutting tooth.

(See Fig. 9) The left hond cuiting tooth should be

shorpened from the right side ond the right hond

looth from the left hond side. Line up filing ongle morks

on holder with guide bor. Hold file level or 90o lo

the guide bor.

3. Two or three firm sirokes (with pressure opplied on the

forword stroke) should giye o keen edge io lhe tooth.

4. All teeth must hove the some filing ongles, ihe some

length, ond riders lhe some height.

5. The cenler cutlers, locoted belween the curved cutting

teelh, should be filed with o flot file (See Fig. I0)

ofter oll the curved cutting teeth hove been filed.

6. Using o flot file the center cutters should be filed on

leoding edge ot 35o ongle or ot lhe some ongle os

cutiing teeth. Hold file 90o to the guide bor. Toke core

thot the top of the cenler cutters ore even wiih the top

of curved cutting leeih or .0O5 below curved cutting

ieeth. Moke 3ure thot lhey ore never obort the curved

cutting teeth. When finished the cenier cuilers should

oll be the some length ond height.

7. The finol step is to file the riders down. This is done

with the use of o depth gouge (See Fig. I I). Core should

be token thof oll riders hove the some height ond thot

rhe leoding edge is rounded ofi ofter filing. Set riders

on direct drive choin sows ot .025. Sei riders on re-

duction drive models ot .035. See picture.

NOTE: ln soft wood, lhe sow choin depth riders on direct

drive moy be set ot .035 on reduclion drive ot .O15 tor

foster cutting.

FIG.

BAR frIAINTENANCE

BAR MAINTENANCE IS IMPORIANT AISO.

THREE MAJOR FORMS OF BAR WEAR

UNEVEN

Cquses cut to bend ot "tvn"

. . . choin to bind in cul.

JOINTING BAR RAILS

Jointing is the process of moking

lhe two rqils level ond squore with

eoch other so qs lo provide proper

beoring surfqces for the bottoms of

the tie slrqps ond cullers.

Jointing should 5e done by your deoler whose shop

is equipped lo render this service. You con moke

lemporory repoir by using the ftot file A4O19O6 to

even the roils.

WORN RAITS

Shollow groove ollows drive

links to ride on bollom cqus-

ing chotter.

CTOSING BAR GROOVES

l. Plqce o piece of steel (qboul 6"

long ond opproximotely .004"

thicker thon the drive links) in the

groove ond loy bqr on qn qnvil

wilh the thin roil up.

Use q 3 lb. hqmmer qnd clore thin tqil snuggly

down on the piece of steel.

After eoch seclion is closed, drive "piece of steel"

forword ifs entire length ond repeot the operotion

unii! the enlire bqr is completed.

RAII.

l-:!,:

BAR MAINTENANCE DUTIES DESCRIBED ABOVE ARE WITHIN THE REACH OF EVERY OWNER.

ADDITIONAT DUTIES SHOULD BE HANDTED BY A CLINTON AUTHORIZED SERVICE MAN.

A.{02555 TtP TIP ASSEMBTY

ONTY

A402554

GREASE GUN

WITH TIP

Lubricote Roller Tip frequently. A good

weight greqse ir recommended.

UNEVEN INSIDE GROOVE WEAR

Cquses friction ond heot binding

ond generol inefriciency.

A101976

grodc of light-

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