5.
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 allows visual alignment of the
bolts to the threaded inserts.
6.
After all bolts are installed, tighten them until
the stand-offs inside the cover contact the side
plate. Do not overtighten the bolts.
Adjusting the Primary V-Belts
1.
To adjust the belt tension on primary V-belts,
first check the adjustment of the traction control;
refer to
Adjusting the Traction Control (page
. If you are unable to attain the 27 to 32 N (6
to 7 lb) force required in adjusting the traction
control, proceed to the next step.
2.
Loosen the retainer that secures the V-belt cover
and pivot the cover open (
).
g016991
Figure 46
1.
V-belt cover
2.
Retainer
3.
To increase the belt tension, loosen the engine
mounting bolts and move the engine backwards
in the slots.
Important:
Do not over-tension the belt.
4.
Tighten the mounting bolts.
Note:
The distance between the center of the
drive pulley and the center of the driven pulley
should be approximately 12.9 cm (5.1 inches)
after the new V-belts are installed.
5.
After tensioning the primary V-belts, check the
alignment of the engine output-shaft pulley and
the counter-shaft pulley with a straightedge.
6.
If the pulleys are misaligned, loosen the screws
that secure the engine mounting base to the
machine frame and slide the engine from side to
side until the pulleys are aligned within 0.7 mm
(0.030 inch).
g027906
Figure 47
1.
Locknut
3.
Idler pulley
2.
Belt guide
4.
Idler arm
7.
Tighten the mounting screws and check the
alignment.
8.
To push or pull the machine easier without
starting the engine, adjust the belt guide (
, inset) as follows:
A.
Engage the clutch.
B.
Loosen the locknut that secures the idler
pulley and the belt guide to the idler arm.
C.
Rotate the belt guide clockwise until a gap
of approximately 1.5 mm (0.06 inch) is
obtained between the guide finger and the
backside of the drive belts.
D.
Tighten the locknut that secures the idler
pulley and the belt guide to the idler arm.
9.
Close the cover and secure the retainer.
Replacing the Differential
Belt
1.
Remove the bolts that secure the traction drive
and reel-drive belt covers to the right side plate
and remove the belt covers.
2.
Loosen the idler pulley mounting nut on
each idler pulley and pivot each idler pulley
counterclockwise away from the backside of
each belt to release the belt tension.
3.
Remove the belts.
4.
Remove the bolts that secure the front and
rear sections of the differential cover to the
differential housing and slide the cover sections
away to expose the belt (
).
34
