Section5: Maintenance
_ efore inspecting, cleaning or servicingthe machine, shutoff engine, wait for all movingpartsto come
to a completestop, disconnectsparkplug wire and move wire away from spark plug. Remove ignition
key, if soequipped.
Failureto follow these instructionscanresult in seriouspersonalinjuryor propertydamage.
Tine Shaft Maintenance
After every 10 operatinghours, remove
the left- and right-side Bolo Tine holders
and clearaway dirt and debristhat have
accumulated on the Oneshaft or inside
the Oneholders. Pleasefollow this main-
tenancerecommendation, asdebris can
cause prematurewear to the Oneshaft
and its oil seals. Referto the previous
tine holder removal instructions. After
cleaningaway any debris and removing
old greasefrom thetine shaft, applyfresh
greaseto the tine shaft.
Tire and Wheel Maintenance
Checktire air pressure every 30 operating
hours. The recommended pressurefor
tilling is 104o-20 psi (pounds per square
inch). Bothtires should be inflated
equally. (Unequal pressurecan causethe
tiller to pull to one side.)
Removing the Wheels
Eachwheel is secured by a roll (spirol)
pin thatpassesthrough the wheel hub
and thewheel shaft. Drive the roll pin out
to removea wheel.
1. Prop the transmission up with a sturdy
block to raisethe wheel you want to
remove off the ground.
2. Move the Wheel SpeedLeverto either
SLOWor FASTposition to prevent the
wheels from turning.
3. Use a5/16" drift pin (or a blunt point
16-penny nail) to drive the roll pin free.
Wear safety goggles when driving the
roll pin into or from the wheel hub to
protectyour eyesfrom the possibilityof
flying metal particles.
Engine Oil Maintenance
Checkthe engine oil level beforestarting
the engineeachday and after each 5
hours of continuous operation. Running
the enginewhen it is low on oil will
quickly ruin the engine.
It is recommendedthat you changethe oil
everyten (I0) operating hours and even
soonerwhen operating in extremelydirty
or dusty conditions. Referto the separate
EngineOwner's Manualfor detailed
serviceinstructions.
Air Cleaner Maintenance
Theengine is equipped with a dual
element air cleanerthat filters the air
twice before it enters thecarburetor to
mix with thefuel.
Theengineair cleaner filters dirt and dust
out of the air beforeit entersthe carbure-
tor. Operating the enginewith a dirty,
clogged air filter cancause poor perfor-
manceand damageto the engine. Never
operatethe engine without the air cleaner
installed. Inspectand servicethe air
cleanermore often if operating in very
dusty or dirty conditions.
It is critical that the filters be kept clean
and properly installed at all times. See
the location of the air cleanerassembly on
your engine by referring to Figure5-39 or
Figure5-40.
Referto the engine manufacturer's litera-
ture suppliedwith your tiller for complete
air cleanerservice and maintenanceinfor-
mation.
Throttle Cable Maintenance
Thethrottle leversettings arefactory-
adjusted,so unnecessaryadjustments
should not bemade. However,if the
enginedoes not start or stop, or respond
immediately to various throttle lever
settings, thenadjustments may be
necessary. Pleasereferto the engine
manufacturer literature suppliedwith your
tiller for specific adjustment instructions.
Ignition System Maintenance
Your engine is equippedwith electronic
ignition. It doesnot havea condenser or
points, so there is no need to perform any
regular tune-up maintenanceon this
system otherthan adjusting or replacing
thespark plug.
Spark Plug Maintenance
The spark plug must be in good condition
for proper engineoperation. Remove and
inspectthe plug every 50 operating hours
or annually, whichever occursfirst.
The correct electrodegap is .030". Check
the gap with a feelergauge. Do not usea
spark plug if the porcelainis cracked, the
electrodesare pitted or burned, or if other
visible damageis present.
NOTE:Do not wire brush or sandblastthe
spark plug to clean it - looseparticles
canenter the engine,causing damage!
To replacethe plug, first tighten it
securelyby hand, then usea spark plug
wrench to tighten the plug an extra 114
turn.
Battery Care and Maintenance
Battery Care in Service
I. Everymonth or every ten (10)
operatinghours, whichever comes first,
checkthe levelof electrolyte solution in
the battery cells:
a. If batterycasehas UPPERand
LOWERlevellines on it, solution
should be maintained at the UPPER
levelline.
b. If the battery doesnot havelevel
lineson case, maintain solution
levelat lowestpart of the filler well
within eachcell.
NOTE:Use only distilled or demineralized
water to refill eachbattery cell.
c. After filling, replace battery caps
securely,then wash off any spilled
solution with baking sodaand water
mixture.
d. Run engineoutdoors for about 20
minutes (at 3/4 throttle) to help
recharge. For safety, do not leave
the tiller unattendedwhile the
engine is running.
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