4-170
4
SLEW MOTOR
DISASSEMBLY AND ASSEMBLY
Brake valve and hydraulic motor
1. Install the relief valve assembly.
• Tighten the plug (12).
Plug: 157±10 N·m
2. Install the check valve assembly (11) and spring (10) on
the housing.
3. Attach the O-ring on the plug (9) and install them on
the housing.
Plug: 39.2 N·m
4. Assemble the timing valve.
a. Attach the O-ring on the sleeve (34) and install them
on the housing.
b.
Fit the spool (33), washer (32) and spring (31) into
the hole of the sleeve.
c.
Install the plug (30).
Plug: 84 ±5 N·m
5. Install the retainer (27), spring (26), retainer (25) and
snap ring (24) on the cylinder block (18).
WARNING
Components may pop out. Wear protective gear such
as goggles and a protective face mask.
• Remove the snap ring while pressing down the re-
tainer (25).
• Make the tapered surface (A) of the retainer (27) face
the cylinder block.
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