Tighten nut to lock adjustment.
Reinstall belt cover by placing the cover in
position. While maintaining a slight gap between
the cover seal and the side plate, install each
mounting bolt until the threads engage in the
insert. The gap will allow visual alignment of the
bolt to the threaded insert. After all bolts are
installed, tighten until the stand offs inside the
cover contact the side plate. Do not overtighten.
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Check tension by depressing belt at mid span of
pulleys with 5
±
1 lbs. of force. Belt should deflect 1/4 in.
If deflection is incorrect, proceed to next step. If
correct, continue operation.
To adjust belt tension:
Remove capscrews securing front and rear
sections of differential cover to differential housing
and slide cover sections away to expose belt.
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Loosen idler pulley mounting nut and pivot the
idler pulley clockwise against the backside of the
belt until desired belt tension is attained.
Tighten nut to lock adjustment.
Reinstall belt cover by placing the cover in
position. While maintaining a slight gap between
the cover seal and the side plate, install each
mounting bolt until the threads engage in the
insert. The gap will allow visual alignment of the
bolt to the threaded insert. After all bolts are
installed, tighten until the stand offs inside the
cover contact the side plate. Do not overtighten.
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To adjust belt tension on primary V - belts, first
check adjustment of traction control. Refer to Adjusting
Traction Control. If unable to attain the 3-5 lbs. force
required in adjusting traction control, proceed to next
step.
Loosen retainer securing V-belt cover and pivot
cover open.
To increase belt tension, loosen engine mounting
bolts and move engine backwards in slots.
Tighten mounting bolts.
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The distance between the centers of the driver
and driven pulleys should be approximately 5.18" after
new V-belts are installed.
After tensioning primary V-belts, check alignment
of engine output shaft pulley and countershaft pulley
with a straight edge. If pulleys re misaligned, loosen
screws securing engine mounting base to mower
frame and slide engine from side to side until pulleys
are aligned within .030".
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Tighten mounting screws and recheck alignment.
To push or pull machine easier without starting the
engine, adjust the belt guide (Fig. 39, inset) as follows:
Engage clutch.
Loosen capscrew securing idler pulley and
belt guide to idler arm.
