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Replacing the Pump Drive Belt
Check pump drive belt for wear after every 50 hours
of operation.
1.
Pull spring loaded idler down and remove
traction belt from the engine and hydro pump
pulleys (Fig. 38). Remove belt between pulleys.
2.
Install new belt around engine and hydro pump
pulleys (Fig. 38).
3.
Pull spring loaded idler down and align below
traction belt. Release pressure on spring loaded
idler (Fig. 38).
Figure 38
Adjustment Parking Brake
Check parking brake for proper adjustment.
1.
Disengage brake lever (lever down).
2.
Measure the length of the spring. Measurement
should be 2.75" (70 mm) between washers
(Fig. 39).
3.
If adjustment is necessary, loosen the jam nut
below the spring and tighten the nut directly
below the yoke (Fig. 39). Turn the nut until the
correct measurement is obtained. Tighten the
two nuts together and repeat on opposite side of
unit.
4.
Turn nuts clockwise to shorten spring length and
turn counter–clockwise to lengthen the spring.
5.
Engage parking brake, lever up.
6.
Measure the distance between the trunnion roller
and the collar on brake rod . Measurement
should be 3/16"–1/4" (5–7 mm) (Fig. 39).
7.
If adjustment is necessary, loosen the jam nut
directly below the yoke. Turn the bottom rod
until the correct measurement is obtained
(Fig. 39). Tighten jam nut at yoke
4
1
3
Figure 39
1. Brake lever
2. Spring 2.75" (70 mm)
3. Adjusting nuts
Maintenance
5
6
2
m–3788
4. Collar on brake rod
5. 3/16"–1/4' (5–7 mm)
6. Jam nut and yoke
47
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