Belt Maintenance
Servicing the Engine Belts
Service Interval:
After the first 10 hours—Check the
condition and tension of all belts.
Every 100 hours—Check the condition and
tension of all belts.
Tensioning the Alternator/Fan Belt
1.
Park the machine on a level surface, lower the
cutting units, engage the parking brake, shut off
the engine, and remove the key from the ignition
switch.
2.
Open the hood.
3.
Check the belt tension by pressing the belt
midway between the alternator and crankshaft
pulleys.
Note:
With 98 N (22 lb) of force, the belt should
deflect 11 mm (7/16 inch).
g008916
Figure 62
1.
Alternator/fan belt
4.
If the deflection is incorrect, complete the
following procedure to tension the belt:
A.
Loosen the bolt securing the brace to the
engine and the bolt securing the alternator
to the brace.
B.
Insert a pry bar between the alternator and
engine and pry the alternator outward.
C.
When the proper tension is achieved,
tighten the alternator and brace bolts to
secure the adjustment.
Replacing the Hydrostat Drive Belt
1.
Park the machine on a level surface, lower the
cutting units, engage the parking brake, shut off
the engine, and remove the key from the ignition
switch.
2.
Insert a nut driver or small piece of tubing onto
the end of the belt tensioning spring.
WARNING
The spring is under a heavy load and
could cause personal injury
Use caution when de-tensioning the
spring.
3.
Push down and forward on the spring end
(
) to unhook it from the bracket and
release tension on the spring.
g008917
Figure 63
1.
Hydrostat drive belt
2.
Spring end
4.
Replace the belt.
5.
Reverse the procedure to tension the spring.
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