46
Replacing the Pump Drive Belt
Check the pump drive belt for wear after every
50 operating hours.
1. Remove the mower belt first; refer to Replacing the
Mower Belt on page 45.
2. Remove the bolt from the clutch stop and unplug the
clutch electrical wire (Fig. 58).
m–7718
1
2
3
4
5
6
Figure 58
1.
Belt
2.
Clutch electrical wire
3.
Clutch stop
4.
Bolt
5.
Clutch
6.
Idler
3. Pull the spring loaded idler to the side.
4. Remove the traction belt from the engine and the
hydraulic pump pulleys (Fig. 58).
5. Install the new belt around the engine and the hydraulic
pump pulleys (Fig. 58).
6. Pull the spring-loaded idler to the side and align the
belt.
7. Release the pressure on the spring loaded idler
(Fig. 58).
8. Install the mower belt.
Adjusting the Parking Brake
Check the parking brake for proper adjustment.
1. Disengage the brake lever (lever down).
2. Measure the length of the spring; the measurement
should be 2-3/4 inch (74 mm) between the washers
(Fig. 59).
m-4120
1
1
2
3
4
7
5
6
Figure 59
1.
Brake lever
2.
Spring, 2-3/4 inch
(74 mm)
3.
Adjusting nuts
4.
Collar on brake rod
5.
3/16 to 1/4 inch
(5 to 7 mm)
6.
Jam nut and yoke
7.
Trunnion
3. If an adjustment is necessary, do the following:
A. Loosen the jam nut below the spring and tighten the
nut directly below the yoke (Fig. 59).
B. Turn the nut until you obtain the correct
measurement.
C. Tighten the 2 nuts together and repeat on the
opposite side of the machine.
4. Turn the nuts clockwise to shorten the spring length;
counterclockwise to lengthen the spring.
5. Engage the parking brake, with the lever up.
6. Measure the distance between the trunnion roller and
the collar on the brake rod. The measurement should be
3/16 to 1/4 inch (5 to 7 mm) (Fig. 59).
7. If an adjustment is necessary, do the following:
A. Loosen the jam nut directly below the yoke.
B. Turn the bottom adjusting nuts until the correct
measurement is obtained (Fig. 59).
C. Tighten the jam nut at the yoke.
