TM 5-3810-306-34
a. Position bearing carrier (18) (with thrust
c. Rotate the drive shaft with a six inch
plates) on gear housing so that roller
wrench to insure there is not binding in the
bearings receive journal of drive gear (21).
pump.
Ensure drain port in bearing carrier is on
suction or inlet side. If removed, torque
d. Torque diagonally opposed nuts to 200 ft-
plug (19) to 140 in-lbs (16 Nm
lbs (266 Nm
10. INSERT CONNECTING SHAFT (17) INTO
13. ASSEMBLE PRIORITY VALVE (28).
SPLINE OF DRIVE GEAR (21).
a. Install jam nut (33), new backup ring (35),
11. INSTALL GEARS (16) AND SECOND SECTION
new packing (36) and retaining ring (38)
GEAR HOUSING (15) AND GASKETS (14).
on adjusting screw (37).
a. Insert drive and driven gears (16) of
b. Install cap (34) in valve (28).
second section into proper bearings (11)
and push down tightly against thrust plate
c. Screw adjusting screw (37) into cap (34)
(13).
the number of turns noted on disassembly
and tighten jam nut (33).
CAUTION
d. Install spring (32) and plug (31).
Avoid pinching gasket seal (14).
e. Install new packings (6) and (7) on
adapters (5).
NOTE
f. Install adapters (5).
Oil gears to provide initial lubrication
when pump is started.
g. Install plugs (30) and (29).
b. Slide second gear housing (15) over gears
14. INSTALL PRIORITY VALVE (28).
(16) and tap in tight against bearing carrier
with a soft hammer.
a. Install priority valve on two longer studs
with nuts (2) and washers (8). Torque
12. INSTALL PORT END COVER (9).
nuts to 200 ft-lbs (266 Nm
CAUTION
15. TEST HYDRAULIC PUMP AND ADJUST
PRIORITY VALVE (28) OUTPUT AFTER
Avoid pinching gasket seal (14).
REBUILD.
a. Place port end cover (9) over gear journals
a. Install flowmeter (2-30 GPM) between
and tap lightly against gear housing (15).
output adapter (5) and output line.
b. Thread four studs (3) and (4), washers (8)
b. Operate pump at least two minutes at zero
and nuts (2) into shaft end cover and snug
pressure and at a moderate speed of not
up cross-corner.
over 1500 rpm.
13-36
