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Yard-Man 989 series Operator's Manual page 12

21" self-propelled mower
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I aintaining
ur Lawn
Mower
Whenreplacingbelt, it is
importantthat the belt is
routedwithinthe inside
of the belt keeper rod
attachedto the underside
of the baffle,
8. Loosenthe belt keeperbolt and lock nut halfa turn,
Figure5-6.
9. Usinga pair of pliers, pull backand rotatebelt keeper
from the sloton the idler bracket,Figure5-7.
10.Slide the beltout from betweenthe belt keeperand
the idler bracket.
11.Slide the beltout fromaround thepulleyon the
transmission.
12.Removebeltfrom aroundthe crankshaft,Figure5-8.
Discardthe wornbelt.
Figure5-6:Loosenbolt and nut on belt keeperandidler
bracket.
Installing
the Belt
13.Placethe newbeltoverthe transmissionpulley.Place
the beltin the pulleygrooveand rotatethe pulleyuntil
the beltis seatedintransmissionpulley.
14.Placethe beltbetweenthe idlerbracketand the belt
keeper.
15.Usingpliers, rotatethe beltkeeperso that it snaps into
slot on the idlerbracket.
J
Figure5-7: Rotatebelt keeperto free the belt.
16.Tightenthe beltkeeperboltand lock nut.
17.Reinstallthe screwthat securesthetransmissionto
the mowerdeck.
18.Placethe beltbetweenthetwo pulleyhalveson the
crankshaft,Figure5-9.
19.Squeezethe blade controlagainstthe upperhandle
to tightenthe belt. Returnbaffle backto itsoriginal
positionand releasethe bladecontrol,Figure5-10.
NOTE:it is importantthat the belt is routed within
the insideof the belt keeper rod attached to the
underside of the baffle, Figure 5-11.
20.Securethe baffle to deck usingthethree screws
removedearlier.
21.Lightlylubricatethe insideof the bladeadapterand
reinstallthe washers,bladeadapter,blade,and blade
bell supportin the correctorder,Figure5-12 (Referto
BladeCare section).Tightenthe hex boltto 450-600
in.Ibs.torque.
f
Figure 5-8:Remove b eltfromcrankshaft afterfreeing itfrom
thetransmission pulley.
Figure5-9: Placeupperpulleyon crankshaft,loop belt around
crankshaft,theninstallthe lowerpulley.
12

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