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Section 5: Maintenance
Beforeinspecting,cleaningor servicingthe machine,shutoft engine,wait for movingpartsto stop,dis- I
connect s parkplugwire andmovewire awayfrom sparkplug.
Failureto follow theseinstructions canresu t n ser ouspersona n ury or property damage.
2. When servicingthe undersideof the
mower,the mower should be tipped only
in the direction of the muffler. Tipping
the mower awayfrom the muffler could
result in enginedamageor difficult
starting.
SPARK PLUGSERVICE
Inspectand cleanor replacethe spark
plug after every 100 operating hours or
annually. Set the gap as describedin the
separateEngineOwner'sManual.
in someareas,local law requires using
resistor spark plugs to suppressignition
signals. If the enginewas originally
equippedwith a resistor spark plug,
replacewith the sametype.
GLEANING THEENGINE
Theenginemust be kept cleanto insure
smooth operationand to prevent damage
from overheating. Referto the Engine
Owner'sManualfor moreinformation.
CLEANING UNDER
THE MOWER HOUSING
Checkthe mower regularlyfor grass
build-up. Cleaningunderthe mower deck
should be done after (ratherthan before)
operatingthe mower, as grassis moist
and removedmore easily.
1. "lip mower towardsthe muffler onto
its side. See Tippingthe Mowerfor
Servicein this Section.
2. Brush or scrapeoff grass build-up.
CLEANING THEGRASSCATCHER
Bag cleanliness a ffectscollection perfor-
manceas a dirty bag will restrict air flow.
Cleanthe GrassCatcherbag annually,
more often in dusty environments.
IMPORTANT:Do not washor dry the
GrassCatcherin a washing machineor
dryer.
1. To cleanthe bag, removeit from the
mower and handwash the fabric with
mild detergent.
16
Before servicing the underside of the
mower:
MOVINGPARTSHAZARD!
Stop engine,wait for all partsto stop
moving, and disconnectspark plug
wire.
• FIRE- EXPLOSION HAZARD!
Gasolineis highlyflammableand its
vaporsare explosive.
1. Drain fuel into an approvedcon-
tainer outdoors, away from open
flame.
2. Be sure engine and muffler are
coolbeforedraininggasoline.
3. Donot smoke.
Failure to comply with the above can
result in serious personal injury and
property damage.
2. Rinsethe bagthoroughly with clean
water and allow to dry completely before
using. Do not usea dampbag.
CLEANING UNDERBELTCOVER
Checkundersideof belt coverfor grass
clippings every10 hoursof use.
1. Removethe belt cover. See
Removingthe Belt Coverin this Section.
2. Removeany grassclippings or debris.
3. Replacebelt cover. SeeReplacingthe
Belt Coverin this Section.
SPARK ARRESTER
SCREEN SERVICE
If the enginemuffler is equippedwith a
spark arroster screen,removeand cleanit
accordingto the time intervalsand
instructionsin the separateEngine
Owner's Manual.
CARBURETOR/GOVERNOR
CONTROL ADJUSTMENTS
Thecarburetor was adjustedat the
factory for best operatingspeed. Referto
the separateEngineOwner'sManualfor
any adjustmentinformation or seeyour
authorized engine servicedealer.
Thegovernor controlsthe maximumsafe
operatingspeedand protectsthe engine
and all moving parts from damagecaused
by overspending.Do nottampor with the
enginegovernor settings. Seekautho-
rizedserviceif a problemexists.
MOWERBLADE MAINTENANCE
Blade Inspection
1. Tip mower towards the muffler onto
its side. See Tippingthe Mower for
Servicein this Section.
Never reach under mower deck while
the engine is running. Mower blade
rotates at all times while engine is
runningand up to 3 secondsafter it is
shut oft.
2. Inspectperiodicallyfor a dull or
slightly nicked blade. Sharpenif needed.
Also checkfor a deformed,cracked,or
excessively worn blade(Figure5-2). Do
not usethe mower if any of these condi-
tions exist. Replace the blade immedi-
ately.
3. Checkthe bladescrewfor tightness.
If loose,tighten to 35 ft-lbs witha 3/4"
torque wrench.
NewBlade
DamagedBlade
Replaceblade immediately i f cracked,
deformedor badly nicked.
Figure5-2: Mowerblade inspection.
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