TM 10-4610-241-24
TO 40W4-13-42
2-67. HIGH PRESSURE PUMP REPAIR (MODELS WPES-10, WPES-20, and WPES-30) - continued.
c.
d.
e.
f.
(5)
Loosen clamp ( 11) and disconnect hose ( 12) from elbow (14). Remove clamp from hose.
(6)
Remove hose ( 12) and grommet (13).
(7)
Remove elbow (14), valve (15), nipple (16) and sight glass (17) from tee (18).
(8)
Remove tee ( 18) and nipple ( 19) from pump assembly (24).
(9)
Remove nut (20) handle (21), packing nut (22) and packing (23) from valve (15).
Cleaning.
(1)
Wash all components with clean water and detergent.
(2)
Rinse components in clean water and dry with wiping rag.
Inspection.
(1)
Inspect all threaded components for damaged threads.
(2)
Inspect sight gage (17) for cracked or dirty glass.
Repair.
(1)
Replace lockwashers, packing and grommets.
(2)
Replace damaged components.
Assembly.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Position packing (23) on stem of valves (15) and install nut (22) fingertight, then tighten an additional 1/4
turn with wrench. Install handle (2 1) and nut (20).
NOTE
Be sure to wrap tape in same direction as threads.
Wrap all male pipe threads with anti-seize tape.
Install nipple ( 19) and tee ( 18) on high pressure pump (24).
Install sight gage (17), nipple (16), valve (15) and elbow (14).
Lubricate grommets (10 and 13) and install in pump stand.
Feed oil drain hose (12) thru grommet (13) in pump stand and position clamp (11) on hose (12).
Connect hose (12) to elbow (14). Adjust and tighten clamp (11).
2-262 Change 1
