Adjustments, Idler linkage adjustment, Idler pulley adjustment – MTD Yard-Man 7090-1 User Manual
Page 11: Belt replacement
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ADJUSTMENTS
(Continued from page 7)
NOTE; Make all adjustments with the engine turned off
and wire removed from the sparkplug. (Fasten wire to
cylinder head at least 1" away from sparkplug.)
IDLER LINKAGE ADJUSTMENT
Should the drive belt stretch sufficiently to cause the
adjustment link to hang up in the bottom of the idler arm
slot when the master clutch lever is in drive position,
readjust as follows. To adjust, move master clutch to drive
position, remove cotter pin from adjustment link, or
bottom of rod, and thread link upon rod until it is not
hanging up in bottom of slot and nearly centered in slot.
Place link into slot, replace cotter pin, and spread.
To check the adjustment, return the master clutch lever to
neutral position and pull engine recoil over to see if belt is
not driving. If belt does not release, lower the adjustment
link slightly below center or until belt does release in
neutral. These adjustments must also be checked when belt
is replaced or the idler is adjusted in the idler arm slot.
IDLER PULLEY ADJUSTMENT
For more adjustment to gain proper tension on the belt, the
idler pulley can be moved in or out in the adjustment slot.
Refer to idler linkage adjustments after making this adjust
ment.
BELT REPLACEMENT
First, remove plastic cap on spout lock lever, then remove
belt cover. Unhook idler spring to release idler tension on
belt. Remove belt restrictor. Remove rear cover (after
shift lever is removed). This will allow one to reach in from
back of unit. Remove master clutch rod from lower arm.
Remove belt from engine pulley and push belt down off
drive pulley. Push belt toward rear of unit around drive
disc, then pull belt up between rubber drive disc and pulley
disc. Push down on lower arm on left side of unit, this
allows more room between rubber disc and pulley disc.
Reach in from back of unit and push belt up, then pull belt
out. To install new belt, reverse steps using only original
equipment replacement belt No. 1651-45.
ADJUSTMENT
LINK
BELT RESTRICTOR
DRIVE PULLEY
DRIVE DISC
RUBBER DRIVE -
WHEEL.^
ENGINE PULLEN
IDLER ARM
LOWER CLUTCH ARM
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