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2. Pivotthe idlerbracket/idlerpulleyto relievethe tensionon the
timingbelt,and repositionthe drivepulleyand/or timingpulleyto
achievethe 900orientationof the timingarrowsonthe pulleys.
3. Re-installthe idlerbracketbackstopand positionso that thereis a
1/8"gapbetweenthe backstopandidlerbracket.Tightenthe hex
screwandflange locknutto secureinthe adjustedposition.
BELTS
Besureto shutthe engineoff, removeignitionkey,disconnectthe
sparkplugwire(s)to preventunintendedstartingbeforeremovingthe
belt(s).
PTO Belt
Allbeltsonyour tractorare subjectto wearandshouldbe replacedif
anysignsof weararepresent.
f
PTOBelt
FixedIdler
Pulley Idler Bracket
IMPORTANT:Do not usesubstitutebelts.Thebelt foundonyour
tractoris speciallydesignedfor optimalperformanceand servicelife
for yourdeckapplication.Use only OEMoriginalreplacementbelts.
Toreplacethe PTObelt,proceedas follows:
1. Removethedeck from beneaththe tractor(referto CuttingDeck
Removal).
2. Maneuverthe PTObeltdownwardand off the idler pulleyon the
springloadedidlerbracket.
NOTE:It maybe necessaryto loosenthe hexcap screwand flange
locknut securingthe pulleyto the idlerbracketto fit the beltbetween
the pulleyand bracket.Slide the beltbetweenthe bottomof the idler
pulleyand top of the timing beltidler pulleybelow.SeeFigure22.
,,, j
Figure22
3. Loopthe beltand pushout of theV- grooveof the drivepulleyon
the right handspindleassembly.Lift the belt overthe pulleyand
out frombeneaththe spindlecover.SeeFigure22.
4. Loopthe newPTObelt andslidebetweenthe topof the drive
pulleyand spindlecover.Maneuverthe beltaroundandintothe
V-grooveof the drivepulley.
5. Routethebacksideof the beltaroundidlerpulleyandbetween
the idlerpulleyandidlerbracket.Re-tightenthe hexscrewand
flangelock nutif loosenedearlier.Referto Figure22.
6. Routethebelt aroundthe fixedidlerpulleyas shownin Figure22
and re-installthe deckas describedin "Reinstallingthe Cutting
Deck"laterinthis section.
Timing Belt
To replacethe timingbelt, proceedas follows:
1. Removethe deckfrombeneaththe tractor(referto CuttingDeck
Removal).
2. Removethe PTObeltdrive pulleyof the righthandspindle
assemblyas describedin "PTOBelt."
3. Removethe hexscrew,flatwasher,lockwasher,shoulderspacer,
andflangelocknut thatmakeup the idlerbracketbackstop.Refer
to Figure21 above.
NOTE:Itmaybenecessaryto cleanthe undersideof the mowingdeck
to accessthehex screw.
27
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