Yard-Man 13875-9 - Page 17

This belt is of a special, high strength
construction. However, after 5-10 hours of
operation, a slight adjustment may be required.
To adjust, move the idler pulley towards the
engine pulley about 1/8'". To check the belt
tension, raise mower height of cut to the highest
position. The belt must release when disengaged.
Repeat the adjustment if more belt take-up is
needed. Additional adjustment can be obtained by
movement of idler pulley #2 after idler pulley Iff
has been moved the full length of the adjustment
slot. To obtain additional adjustment, move idler
pulley #2 towards the outside. When the idler
pulley has been tightened, relocate the belt
restrictor in the positioning slot.
REPLACE TRANSMISSION BELT
FIGURE 31,
1. To facilitate removal and replacement of the
tractor's transmission drive belt, remove the
mower deck as explained previously. Drain
the oil and gasoline from the engine.,.re¬
move the battery.. .and then tilt the tractor on
its side to expose the belt assembly.
2. Remove the bolts holding the shift position
panel and remove the panei,
3 . Remove the mower idler spring and the
mower drive idler arm connecting rod,
4. Remove the engine drive pulley mounting
bolt. Loosen the set screw in the lower engine
pulley hub and remove the pulley.
5. Remove the old belt, slipping it first up and
of the transmission pulley, off the engine
pulley, and off the two transmission drive
idlers. Then work the belt up and over the
transmission lever for removal.
6. To install a new belt, reverse the above steps.
6e sure the tapered side of the belt is in the
pulley groove. In replacement, use only an
authorized original equipment belt. Refer to
the parts list for the part number of the proper
belt.
Make sure the belt is inside the belt guide
rods (near the engine drive pulley and the
transmission pulley) and inside the two belt
restrictor brackets.
The front transmission idler (flat) should be
on the outside of the belt and the rear
transmission drive Idler (V type) should be on
the inside of the belt. Refer to the Installation
diagram under the right foot rest.
7. Replace the shift position panel.
8. After the new belt is in position, the clutch
and brake should be adjusted. Refer to the
Clutch/Brake adjustment on page 18.
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