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 TM 10-3930-660-24-2
PISTON PUMP MAINTENANCE - CONTINUED
0256 00
DISASSEMBLY - CONTINUED
NOTE
Be careful not to damage shims when removing pintle covers.
17.
Remove eight screws (28), then remove pintle covers (29) from each side of housing (6).
18.
Retain shims (27), if possible, and use a micrometer to measure total shim thickness. If bearing subassemblies (30 and
31) are not defective, use the same shims (27), or a new shim with the same thickness, to preload bearing subassemblies
(30 and 31) at installation.
19.
Remove O-rings (32) and bearing spacer (33) from each pintle.
20.
Slide yoke (26) from side to side to loosen yoke bearing races (30) within housing (6). Use a wrench between yoke (26)
and pintle bearing (31) to help remove races (30). Apply pressure at the approximate center of bearing (31) and allow
bearing rollers to gently press race (30) out of housing (6).
21.
Remove yoke (26) and driveshaft (15) from housing (6) as an assembly. Turn yoke (26) at an angle and slide the two
parts out of housing (6).
22.
Remove seat (34) and yoke spring (35). Seat (36) and roll pin (27) will be attached to yoke (26).
23.
Remove bearing (38) from driveshaft (15), if neces-
ARBOR PRESS HERE
sary.
24.
Use fabricated tool and an arbor press to remove bear-
ing (38) from driveshaft (15).
38
25.
Remove bearing race (39) from housing (6), if neces-
sary.
15
26.
Use fabricated tool and an arbor press to remove bear-
ing race (39) from housing (6). Discard bearing race
(39).
1-1/2 IN. HEAVY
27.
Remove retaining ring (40).
WALL TUBING
28.
Use fabricated tool and arbor press to remove shaft
9 IN. LONG
seal (41) from housing (6).
409-1476
39
40
6
41
409-1477
0256 00-4
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