GILLIG LOW FLOOR, Руководство по обслуживанию

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Hydraulic System
33
Fan Motor Inspection and Repair
Inspect the rubber isolators installed between the motor mounting channel and the two mounting brack-
ets. If they are worn or deteriorated from exposure to oil, they should be replaced.
The hydraulic fan motor is temperature activated and may start at any
time when the engine is running. Always disconnect the battery ground
cables to preclude accidental engine start while working on the hydraulic
system.
Do not use a petroleum based lubricant to assist in working the new
isolator into the bracket. The only acceptable lubricant is a 50% mixture
of liquid detergent and water.
1. Remove the bolts, washers, and locknuts attaching the brackets to the channel.
2. Push the old isolators out of the bracket and install new isolators.
3. Position the channel between the brackets and install the bolts, washers, and locknuts. Tighten
the locknuts to 40–45 ft-lb (55–65 N-m) torque.
Fan Hub Removal
If the hub is to be replaced, follow the steps below for removal and installation of the hub.
Do not strike the end of the shaft with a hammer. Do not use heat to
attempt to loosen the hub from the shaft. Either of these techniques may
cause internal damage to the motor and could require replacement of
the motor.
1. With the motor held firmly in a soft jaw vise, remove the locknut and large flat washer from the
output shaft of the motor.
2. Use a proper puller to remove the hub from the shaft.
Fan Hub Installation
1. Place the hub on the motor output shaft, making sure the key is properly in place.
2. Install the washer and locknut on the hub and tighten the nut to 60–70 ft-lb (80–95 N-m) torque.