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7-8
D R I V E R S H A N D B O O K
Caging the Park Brakes
If the bus is equipped with air brakes, and if full working air
pressure is not present in the system, the park brakes must be
mechanically caged before the vehicle can be towed. Proceed as
follows:
⚠
⚠
WARNING!
WARNING!
Caging the spring brakes
disables the parking brake. Ensure that the bus
is completely secured against rolling by wheel
chocks before caging the spring brakes.
3. Using a pry bar, carefully apply linear pressure to the driveline allowing the slip joint to provide clearance from the
universal joint. Carefully lower the driveline allowing it to rest in the driveline guard.
4. Wrap the universal joint on forward driveline with tape in order to retain bearings.
5. Moving to the rear joint at the axle housing differential, remove the capscrews that secure the yoke straps to the hub.
Carefully lower the driveline removing it from the driveline guard.
6. Wrap the universal joint on the end of the removed driveline with tape in order to retain bearings.
7. Store driveline in rear of bus in preparation for towing.
8. After tow truck has been hooked to bus, release the parking brake and remove wheel chocks.
9. Discard removed capscrews and straps. New capscrews and straps will be required for reinstallation of driveline.
Torque capscrews to 45-60 ft.lbs.
Содержание Vision 2021
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