TM 5-3810-306-34
CAUTION
Do not damage packing (11) or back-
up ring (12) when installing head into
threaded barrel.
c.
Install rod assembly into barrel (2) with a slight
twisting motion.
d. Wipe any oil from threads of barrel and head.
Coat threads with NEVER-SEEZ (paste type)
lubricant.
9. IF EXISTING HEAD (13) AND BARREL (2) ARE TO
BE USED, PROCEED AS FOLLOWS:
a. Screw head (13) into barrel (2).
b. Using strap wrench, tighten head securely until
the setscrew holes align.
c.
Apply Loctite # 271 to setscrew (3) and install
setscrew.
10. IF NEW HEAD (13) OR BARREL (2) IS TO BE
USED, PROCEED AS FOLLOWS:
a. Screw head (13) into barrel (2).
b. Using strap wrench, tighten head securely.
c.
If necessary, drill 0.265-in.
dia.
hole 3/16-in.
11. INSTALL CHECK VALVE (19).
(max.) deep in head (13).
a. Check inside of port block for any sharp edges
NOTE
or burrs and remove as necessary with emery
cloth.
Setscrew when installed should be
flush with barrel.
b. Install new external packing onto check valve
(19).
d. Clean drilled hole of chips and debris.
c.
Lubricate check valve and packings with clean
e.
Apply Loctite #271 to setscrew and install
hydraulic oil.
setscrew.
CAUTION
Do not damage packings during
installation of check valve. If check
valve turns freely then gets hard to
turn, then easy to turn; remove check
valve and check packings. They have
probably been damaged by a sharp
edge of a port.
11-21