Priority Valve - Cleaning
The priority valve spool and spring may be removed for
cleaning.
1 Remove the priority valve from the machine. Refer to
Priority Valve - Removal and Replacement.
2 Unscrew adaptor 9 and extract the priority valve spring
11.
3 Remove the blanking plug 7. Press out the priority valve
spool 12 using a nylon pin. Take care not to damage
the bore of the valve.
4 Clean these components in clean paraffin paying
particular attention to the orifices at each end of the
spool. Dry off and lubricate with clean hydraulic fluid.
5 Refit the priority valve spool 12 making sure that the
spring seat end of the spool faces towards the LS port.
Refit blanking plug 7 and torque tighten.
6 Refit the priority valve spring 11 and adaptor 9 and
torque tighten.
7 Refit the valve onto the machine. Refer to Priority
Valve - Removal and Replacement.
8 Bleed the load sensing line. Refer to Priority Valve -
Bleeding.
Torque Settings
Item Nm Ibf ft
7 50 37
9 50 37
20 - 5
Section H Steering
9803/3280
Section H
20 - 5
Issue 1
Service Procedures
9
10
11
1
2
3
4
12
8
7
5
6
A
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