TM 55-4920-394-13&P
ac.
Carefully separate mounting flange (77) from port block (59). Remove dowel pin (73) and O Ring
(63).
ad.
Remove key (76) from shaft (82) and withdraw gerotor assembly (71) from port block (59).
Remove dowel pin (73).
ae.
Disassemble gerotor assembly (71) as required by separating eccentric ring (72) from pump
cartridge elements (74 and 75).
af.
Remove six O Rings (64), snap ring (66), and bearing sleeve (65) from port block (59).
ag.
Remove six socket head cap screws (79) from seal retainer (78) and remove reainer from
t
mounting flange (77). Remove O Ring (80) from retainer.
ah.
Taking care not to damage inner sealing surface of shaft seal (81) slide seal off end of pump shaft
(82).
ai.
Remove pump shaft (82) with bearing (84) and snap ring (83) attached from mounting flange (77).
aj.
Remove snap ring (83) and bearing (84) from shaft (82).
ak.
Remove plugs (85) and O Rings (86) from hanger housing (91).
al.
Remove Identification Plate (87) by removing drive screws (88).
am. Remove drive screws (90) and name plate (89).
4-25. Reassembly Of High Pressure Pump.
CAUTION
Be very careful not to damage packing and seals during reassembly
procedure.
4-26. Preparation Of Parts For Assembly.
a.
Clean all parts with suitable cleaning fluid and blow out oil passages with compressed air.
b.
Inspect all parts for material defects, dirt, scratches, or foreign material.
c.
Coat all parts with a light film of oil and protect from dirt and excessive handling during assembly.
During assembly, keep lapped surfaces lubricated with clean oil.
a.
Install bearing (84) on pump shaft (82). Press bearing snugly against shaft shoulder and secure
with snap ring (83).
4-6