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4
CONTROL VALVE
DISASSEMBLY AND ASSEMBLY
Main relief valve
1. Remove the plug (1) from the housing (2).
Plug: 49 to 54 N·m
2. Remove the O-ring (3) from the plug (1).
3. Remove the sleeve (4) from the plug (1), and then re-
move
the spring (5) and the main poppet (6) from the
sleeve (4).
4. Remove the O-ring (7) and the backup ring (8) from the
seat (9).
5. Remove the lock nut (10), the washer (11) and the set-
scr
ew (12) from the plug (1), and then remove the O-
ring (13) from the setscrew (12).
• When assembling, first install the setscrew (12), and
then temporarily fasten the lock nut (10) to adjust
the pressure before final tightening.
Lock nut: 27.5 to 31.4 N·m
6. Remove the spring (14) and the needle valve (15).
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