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1
Figure 68
1. Fixed Idler
8. Check belt tension again. The center bolt of spring
loaded idler must be between the two alignment holes
in left support plate (Fig. 67). Adjust, if necessary, and
tighten all hardware securely.
9. If the fixed idler contacts the end of the adjustment
slot and more belt tension is required, a small change
to lengthen the push arms can be made (Fig. 69).
10. To lengthen, loosen jam nut and rotate ball joint
counterclockwise, one turn at a time. Adjust each side
the same amount.
3
1
Figure 69
1. Push arm
2. 15-5/16 (389 mm)
nominal
11. Rotate the belt guide, on rear of the mower, so it is
1/8 –1/4 (3–7 mm) away from the vertical side of the
PTO belt (Fig. 70).
2
m–3746
2. Adjustment slot
1
2
m–3740
3. Jam nut
4. Ball joint
47
1
3
Figure 70
1. Belt guide
2. PTO drive belt
Replacing the Alternator Belt
Squealing when the belt is rotating, frayed belt edges,
burn marks and cracks are signs of a worn belt. Replace
the alternator belt if any of these conditions are evident.
1. Stop the engine, set the parking brake, remove the key
and disconnect the spark plug wire(s) from the spark
plug(s).
2. Remove the PTO drive belt. Refer to Replacing the
PTO Drive Belt, on page 46.
3. Loosen both upper and lower alternator bolts to allow
alternator to rotate and loosen belt (Fig 71).
4. Remove belt from pulley, alternator and over clutch
pulley (Fig 71).
5. Install new belt.
6. Rotate alternator out away from engine and tighten
lower and upper alternator bolts (Fig 71).
Note: Alternator belt will deflect 1/8 while applying 5–7
pounds of force, when installed correctly.
7. Reinstall the PTO drive belt. Refer to Replacing the
PTO Drive Belt, page 46.
2
3. 1/8 –1/4 (3–7 mm)
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