WARNING: Beforeinspecting, cleaning or servicing the machine,shut off engine, wait for all moving partsto come to a complete stop, disconnectspark plugwire and move wire awayfrom spark plug. Failureto follow these instructions can result in serious personal injury or property damage.
FORWARD CLUTCH | 5. | Releasethe ReverseClutch Control | |
BAIL ADJUSTMENT | knob.andthen unthreadthe inner jam nut | ||
(C, Figure | |||
If the ForwardClutch Bail does not func- | |||
threaded cableadjuster (A, Figure | |||
tion properly,first checkthat the forward | |||
the left until the inner jam nut (C) touches | |||
drive belt is adjusted properly (see Check- | |||
the bracket. | |||
ing and Adjusting Forward Drive Belt Ten- | 6. Preventthe inner jam nut (C)from turn- | ||
sion). If this fails to correct the problem, | |||
ing and tighten the outer jam nut (D) | |||
contact | |||
againstthe bracket. Preventthe outer jam | |||
dealerfor service advice. | |||
nut (D) from turning and tighten the inner | |||
| |||
CHECKINGANDADJUSTINGRE- | jam nut (C) againstthe bracket. | ||
VERSEDRIVEBELTTENSION | 7. | Measurethe gap by repeating Step 3. | |
(Models634F/634B only) | Readjustas neededby repeating Steps 5 | ||
and 6. | |||
| |||
It is important to maintain correct tension | 8. | Reinstall the belt cover. | |
| |||
on the reversedrive belt. A loose belt will causethe tines andwheelsto slow down -
or stop completely - even though the en- gine is running at full speed. Whenchecking belt tension, alsocheck the belt for cracks, cuts or frayed edges and replace it as soon as possible.
• Check belt tension after the first two hours of
To CheckReverseBelt Tension:
1. Stop engine, wait for all parts to stop moving anddisconnect spark plug wire.
2. Removescrew in plastic belt coverand
ReplacementBelt Information
If the drive belt needsto be replaced,see your local authorized dealeror refer to the Parts List for ordering information. Use only a
ENGINECLEANING
Keepingthe engineclean will helpto en- sure smooth operation and preventdam- agefrom overheating. Referto the Engine Owner'sManual for engine cleaning ser- vice intervals and instructions. Besure thatthe muffler is cool beforeservicing the engine.
AIRCLEANERSERVICE
Theair cleaner filters dirt and dust out of the air before it enters the carburetor. Op- erating the enginewith a dirty, clogged air filter can causepoor performance and damageto the engine. Neveroperate the enginewithout the air cleaner installed. In- spect and servicethe air cleaner more of- ten if operating in very dusty or dirty conditions. Referto the engine Owner's Manualfor air cleanerservice intervalsand
slide belt cover (which is attached to for- ward clutch cable) out of the way.
3. Havean assistant pull the Reverse Clutch Control knob all the way out and
Figure5-5: Measurecablewirelengthto checkfor correctreversebelt tension.
instructions.
ENGINEOILSERVICE
Checkthe engineoil level before each use
hold it in that position. Measurethe length of the cable wire betweenthe end of the
threadedcableadjuster (A,
the end of the
4. The belt tension is idealifthe cablewire length measuresbetween1/8" to 1/4". If it is lessthan 1/8" (and if there is no reverse actionwhenthe tiller is running),then make the following adjustments
NOTE:Ifthe length is morethan 1/4",noad- justment is
Figure5-6: Movethreadedadjuster(,4)toleft toincreasebelttension.
andafter everyfive hours of continuous operation. Running the engine when it is low on oil will quickly ruin the engine.
It is recommendedthat you change the motor oil after every 10hours of operation and even sooner when operating in ex- tremely dirty or dusty conditions. Referto
the EngineOwner'sManual for detailed service instructions.
A. To Checkthe EngineOil Level:
1.Parkthe tiller on a levelareaand shut off the engine.
2.Levelthe engine (use the Depth Regu- lator Lever to adjust the engineangle).
2O