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
9803/3280
Section H
20 - 5
Issue 1
Service Procedures
9
10
11
1
2
3
4
12
8
7
5
6
A
