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TM 1-4920-446-13 & P
3-63.
Pump - Replace
3-63
This task covers:
Removal and Installation
INITIAL SETUP
Tools:
Tool Kit, Hydraulic, NSN 5180-00-323-4891
Personnel Required:
MOS 67
Equipment Condition:
Para. 3-18 Cabinet removed
General Safety Instructions
Be sure that all electrical power is removed from the unit before beginning any mainte-
nance operation. To avoid personal injury test stand must be shut down and all hydrau-
lic pressure relieved before beginning any maintenance operation.
REMOVAL - MAIN PUMP
NOTE
The main hydraulic pump, boost pump, and electric motor will be removed and installed
as an assembly.
1.
Position test stand under chain fall or other suitable lifting device.
2.
Disconnect all electrical wiring and hydraulic tubing/lines from the motor/pump assembly.
3.
Disconnect the volume control rod at the pump.
4.
Remove flow indicator assembly by removing two lower pump mounting bolts.
Use two legged sling or other suitable lifting device which will prevent the motor and
pump from shifting when motor bolts are removed.
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