TM 5-3805-262-34
3-22. CONTROL VALVE ASSEMBLY MAINTENANCE (CONT)
e. Main Relief Valve (Cont).
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
Install
Install
valve sleeve (20) in
new backup ring (19)
grooves. O-ring is installed
seat.
valve seat (17) if removed.
and new O-ring (18) in valve seat (17)
in groove next to smaller diameter of valve
Put valve seat (17) in control valve body.
Install new O-ring (16) on plug (15).
Lubricate O-ring (16) using clean lubricating oil then install and tight-
en plug (15).
Install poppet (14), spring (13), and plunger seat (12) in control valve
body.
Install relief plunger (11) and spring (10) in valve cap (1).
Put valve cap (1) in a vise.
If removed, put nut (8) on setscrew (7) then put washer (9) on setscrew.
Turn setscrew into valve cap (1) the same number of turns recorded during
disassembly.
Using screwdriver, hold setscrew (7) stationary and tighten nut (8).
Install
Install
Instal 1
cap (1).
washer (6) on setscrew (7) and nut (8).
and tighten acorn nut (5).
new O-ring (4), new backup ring (3), and new O-ring (2) on valve
Install and tighten valve cap (1).
Install control valve assembly (page 3-654) and adjust main relief valve
pressure setting (page 3-617).
3-692
