TM 5-4930-244-14
(23)
Remove o-ring (46). Discard o-ring (46).
(24)
Remove two washers (47) and packing (48). Discard packing (48).
(25)
Grip trip rod (16) at shoulder with wrench Remove bottom trip-rod nut (51). Slip off piston retainer (44). See
detail (26) Unscrew and remove adapter (50) from cylinder head and plug assembly (19). Remove washer (51)
and bushing (52) from adapter (50).
(27)
Remove two hex head cap screws (53) from cylinder head and plug assembly (19).
(28)
Remove from bottom of packing retainer (42), gasket (58), washer (59), second gasket (58), and spacer (60.)
(29)
Remove washer (61), seal (62), lantern ring (63), seal (64), spacer (65) and o-ring (66) through bottom of body
(42). Discard seal (62), seal (64), and o-ring (63).
(30)
Grab upper coupling (57) and pull upward until contents of pump tube (55) is removed.
(31)
Remove two lower spring clip (67) from lower coupling (68). Unthread and remove rod (69) from upper coupling
(57), then remove lower coupling (68) from adapter (70).
(32)
Unthread and remove valve seat (71) from adapter (70) Remove piston (72), ball (73) and heavy spring (74).
(33)
Tap out pin (75) from foot valve body (76) and remove ball (77).
b.
Repair.
WARNING
Dry cleaning solvent is flammable. Do not use near open flame or non-' ventilated
places Keep solvent away from open flames or sparks Avoid inhaling solvent
fumes. Avoid contact with skin. Flash point of solvent is 100° F to 138° F (38° C to
59° C)
(1)
Clean all parts with dry cleaning solvent.
(2)
Discard and replace all packings and gaskets.
(3)
Inspect all parts for wear or damage. Replace if necessary.
(4)
Inspect all threaded surfaces for damage. Replace if necessary.
(5)
Inspect pump rods and tubes for cracks, breaks, or other defects
(6)
Inspect valve and valve seats for damage or wear. Replace if necessary.
(7)
If using repair kit, use all replacement parts in kit
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