ARMY TM 9-6115 464 34
AIR FORCE TO 35C2-3-445-2
NAVY NAVFAC P-8-624-34
Make sure that the assembly is wrung into position past the hydraulic head seal (122). Failure to do this
may result in leakage.
Rotate the hydraulic head until the head locking screw holes are aligned. Install head locking screws (136 and
137) finger tight.
Invert the pump and holding fixture in the vise so that the bottom faces up.
Install seals (107) and head locating screw (106).
Install seals on piston plugs (96 and 108).
Install piston ring seal (110) and piston ring (109).
Install cam advance screw (105) using tool number 15500 and 15499 and torque to 400 inch- pounds. Install seal
(104) and plug (103).
Using the piston ring installing tool (part number 16199), slide power piston plug (108) over piston (111).
Install spring (99), shim (100), piston (101), and slide washer (102) into plug (96). Install seal (98) onto plug (96).
Install plugs (96 and 108) with their assembled parts into the housing and torque to 215 to 265 inch-pounds.
Make sure that the power piston plug is on the right side of the pump as viewed from the transfer pump
Torque plug (103) to 75-100 inch-pounds
Torque head locating screw (106) to 300 inch-pounds
Torque head locking screws (136 and 137) to 180-220 inch-pounds
Invert the pump and holding fixture in the vise
Never sand or polish off the special treatment on the valve. Failure to observe this caution could result in
Install the metering valve (93) and shims (95) into its bore. Depress and rotate the valve several times to insure
freedom of movement. If valve sticks, lap it carefully in dean oil.
Metering Valve Setup:
Install No.shim and No.16575 spacer on metering valve.
Thread control rod guide No. 20223 into pump (finger tight).
Check clearance between valve and control rod guide. Add shim No. 16576 through 16583 (as required) to
control clearance between 0.002 in. and 0.005 in. maximum.
Pull back on the governor linkage hook (50) stretching the spring just enough to Connect the hook correctly to the
fork on the governor arm (86). Position the other end over the pin on the metering valve arm (91). Check all
governor parts again for freedom of movement
With the end plate (66) removed, install the speed droop control rod though threaded hole from inside of pump
Change 1 3-59