ARMY TM 5-5420-212-23
MARINE CORPS TM 08676A-23/3
Inspect dipstick/filler (2), keeper plate (3), cap pin (4), swivel cradle (6) and swivel cradle seat (7) for
damage and burrs. Check for bent cap pin (4).
Inspect release valve screw (1), spring (20) and release valve (19) for damage.
Inspect delivery valve screw (21), spring (22) and ball bearing (23) and also the aluminum flat washer (49)
Inspect suction valve screw (24), spring (25) and ball bearing (26) and also the aluminum flat washer (50)
Examine the threads on the six base screws (8) for wear and check that screws are not bent.
Inspect seating between base (9) and body (10) for damage, and liner (15) bore for wear and damage.
Inspect all threads and oilways for dirt, damage and wear.
Inspect quadrant (44) jack handle holes for wear and cracking, and quadrant location hole through body
(10) for wear.
Inspect body (10) generally for damage, particularly around top.
Inspect tumbler (42), roller (46) and circlips (47).
Examine pump barrel bore (12) and pump plunger 11) for scoring and also aluminum fiat washer (51) for
Inspect liner (15) and ram (29) for scoring, wear and damage.
Inspect all valve seats for wear and damage.
Inspect lifter pin (35), ball bearing (34), spring (33) and cage (32), trigger guide (30) and compression
spring (31) for wear and damage.
Examine hole in base of ram to ensure that lifter pin (35) can move freely up and down.
Replace all seals (except flat washers, which need only to be replaced if damaged) and smear all
seals and mating surfaces with oil before assembly. Fit all conical springs with the small end
Remove the old quadrant seal (52) and replace with new.
Turn body (10) upside down, then insert quadrant (44) and place tumbler assembly (42) on shaft.
Ensure tumbler lines up with marks on body previously scribed. Ensure that quadrant is pressed
fully in and centralize tumbler before tightening pinch bolt, or before driving spring pin so that it
seats in groove on quadrant shaft.
Replace and tighten socket screw (43) to secure tumbler on shaft, or drive in spring pin (45) - see inset.