34 - 10
Foot Relief Valve
Dismantling
1 Remove relief valve sub-assembly 1.
Note: Pressure setting is critical - do not dismantle the valve
sub-assembly.
2 Remove ‘O’-ring 2 and discard.
3 Remove screwed plug 3.
4 Remove ‘O’-ring 4 and discard.
5 Remove socket screws 5.
6 Remove cover 6.
7 Remove ‘O’-ring 7 and discard.
8 Withdraw bushing 8, sleeve 9, spring 10, spool 11,
outer sleeve 12 and spacer 13.
Cleaning, Inspection
1 Clean all parts with clean oil and dry with compressed
air. Inspect all parts.
2 Ensure spool 11 moves smoothly.
3 Check spring has no defects, deformation or wear.
4 Remove slight defects by lapping.
5 Renew damaged or badly worn parts.
Assembly
Assembly is the reverse of the dismantling procedure.
Torque Settings
1 48 Nm (36 lbf ft)
3 30 Nm (22 lbf ft)
5 48 Nm (36 lbf ft)
Section E Hydraulics
9803/6410
Section E
34 - 10
Issue 1
Control Valve
JS01100
JS01130
JS01120
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