HYDRAULIC SYSTEM CD5515-2/YB5515-2 SERVICE MANUAL
4-30 Published 1-20-2017, Control# 483-02
3. Fill the hoist motor with clean hydraulic fluid through the
case drain port Figure 4-24 to the bottom of the fill plug.
4. Connect all the hydraulic hoses and fittings to the motor.
5. Start the engine and slowly run the hoist through several
cycles to remove any air in the system. Check for
hydraulic leaks.
Hydraulic Swivel
Removal
1. Stop the engine and engage the parking brake. Move
the controls in both directions to release any pressure in
the hydraulic circuits.
2. Put tags on the hydraulic lines with the number of the
hydraulic port to which the line connects.
3. Disconnect the hydraulic lines from the upper and lower
swivel ports. Be prepared to collect the hydraulic oil in
the lines. Put caps or plugs on the fittings and hydraulic
lines.
4. Remove the stop from the bottom of the swivel.
5. Put a support under the swivel. Remove the three bolts
and lockwashers securing the swivel to the mast.
6. Remove the hydraulic swivel.
CAUTION
To inhibit cavitation and damage to the motor due to lack
of lubricating hydraulic oil, DO NOT start the motor
without first filling the motor with hydraulic oil.
CAUTION
The area around the swivel and the swivel must be
completely cleaned before removing the swivel from the
machine.
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