Toro Z Master Z597 - Adjusting the Parking Brake

3-22 Z Master Z597 Diesel Service Manual
3
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” (70mm) between the washers (Fig.
083).
Fig 083 m-7417
3. If an adjustment is necessary, loosen the jam nut
below the spring and tighten the nut directly below
the yoke (Fig. 083). Turn the nut until the correct
measurement is obtained. Tighten the two nuts
together and repeat on the opposite side of the unit.
4. Turn the nuts clockwise to shorten the spring length
and counterclockwise to lengthen the spring.
5. Engage the parking brake (lever up).
6. Measure the distance between the spring bracket
and the adjusting nut under spring bracket. The
measurement should be 1/4 - 5/16” (5 - 8mm) (Fig.
083).
7. If adjustment is necessary, loosen the jam nut
directly above the trunion roller. Turn the lock
nut below the trunion roller until the correct
measurement is obtained (Fig. 083).
8. Tighten the jam nut directly above the trunion roller
(Fig. 083).
Note: If the 1/4 - 5/16” (5 - 8mm) can not be
achieved, remove a pin from either yoke at the
ends of the brake rod. Adjust the length of the
rod so 1/4 - 5/16” (5 - 8mm) can be achieved
and install the brake rod.
CHASSIS
1. Brake lever - engaged 7. 1/4 - 5/16” (5 - 8mm)
2. Brake lever - disengaged 8. Spring bracket
3. Spring, 2-3/4” (70mm) 9. Lock nut below trunion
4. Jam nut above trunion roller roller
5. Nut below spring bracket 10. Brake rod
6. Trunion roller 11. Yoke
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