TM 5-3810-306-34
2. ASSEMBLY AND INSTALL SPOOL (18), SLEEVE
INSPECTION:
(17) AND SPRINGS (20).
1. INSPECT ALL
PARTS
AND
REPLACE
AS
a. Install spool (18) into sleeve (17). Ensure spool
NECESSARY.
(18) moves freely. Rotate spool (18) so spring
slots are aligned.
a. Inspect parts for scratches and burrs.
Minor
scratches may be removed with fine crocus
NOTE
cloth. Do not use coarse grit or grind.
b. Inspect all mating surfaces.
Some spool and sleeve sets have
identification marks, aligning these
REASSEMBLY:
marks will line up spring slots.
NOTE
b. Bring spring slots of both parts in line and stand
parts on end of bench. Insert spring installation
Lubricate all seals (with the exception
tool through spring slots of both parts. Position
three pairs of centering springs (20) (two sets of
of the quad ring seal) with a
three each) on bench so extended edge is down
petroleum jelly, such as Vaseline. Do
and arched center section is together. In this
not use excessive lubricant on the
position, enter one end of entire spring set into
seals for the gerotor section.
spring installation tool.
1. INSTALL CHECK BALL (13) AND SEAT (11).
c.
Compress the extended end of centering spring
set and push it into spool sleeve assembly,
a. Insert check ball retainer (14) into housing using
withdrawing installation tool at same time.
needle nose pliers. Ensure retainer sits flat.
d. Center spring set in parts so they push down
b. Install check ball (13).
evenly and are flush with upper surface of the
spool and sleeve.
c.
Lubricate and install new seals (10) and (12)
onto check ball seat (11). Install check ball seat
e. Install pin (19) through spool (18) and sleeve
(11) in housing (16).
(17) until ends are flush with both sides of
sleeve.
d. Install setscrew (9). Torque to 100 in.-lbs (11
Nm). Ensure top of setscrew is below mating surface to
f.
Install spool and sleeve assembly into housing
avoid interference upon installation.
(16).
10-6
