2-67. HIGH PRESSURE PUMP REPAIR (MODELS WPES-10, WPES20, and WPES-30).
This task consists of:
General Mechanics Tool Kit (Appendix B, Section III, Item 4)
Tape, Anti-seize (Appendix C, Section II, Item 19)
Detergent (Appendix C, Section II, Item 5)
Rags, Wiping (Appendix C, Section II, Item 14)
Gear Oil (LO-4610-241-12)
Lockwashers, Packing and Gaskets (TM 10-4610-241-24P)
Power shut down (Power Source Manual).
Belt Guard Removed (Paragraph 2-65).
Pump contains approximately 4 quarts of oil when oil is at the full mark on oil level
Place a suitable container under discharge hose at front of trailer and unscrew and
remove plug (1) from fill port.
Turn drain valve (15) to fully open position and allow oil to drain.
When oil is fully drained, close drain valve (15).
Using a funnel, pour 4 quarts of oil into pump cavity at fill port.
Drain oil from Pump in accordance with paragraph a. above.
Remove three nuts (2), lockwashers (3), screws (4) and clamps (5 and 6)
Loosen clamp (7) and remove water drain hose (9) from elbow (8). As required, remove clamp from hose.
Remove grommet (10).
2-260 Change 1