OPERATOR'S MANUAL MAINTENANCE

Section E - Hydraulics
Shuttle Valve
Dismantling and Assembly
E-122 E-122
9803/9880-3
Dismantling and Assembly
Dismantling
K Fig 1. ( T E-123)
1 Remove the pressure switches 1 and plug all orifices
to prevent ingress of dirt .
2 Remove plugs 2 from valve.
3 Using a 5mm Allen key remove valve 3, ball 4 and
seat 5.
4 Repeat steps 2 to 3 to remove the remaining three
shuttle valves.
Inspection
Before assembling the solenoid valve make sure that a
thorough inspection of all the components is carried out.
Remember that although a failed component may be easy
to identify, the cause may be less easy to trace. It is also
possible that a failed component may have caused
damage to other areas of the valve.
1 Carefully clean all components using a suitable
degreasing agent.
2 Carefully inspect all components for signs of
excessive wear or damage. If wear or damage is
evident, components must be renewed.
Note: Check condition of `O'-rings before assembly.
Assembly
Assembly is a reversal of the dismantling sequence.
1 Lubricate valve 3, ball 4 and seat 5 with clean
hydraulic oil.
2 Apply JCB Threadseal to plugs 2.
3 Tighten components to specified torque.
K Table 2.
Hoses ( T E-122)
Table 1. Pressure Switches
Table 2. Hoses
Port Function Harness Tape
Colour
S1 Slew Pressure Switch Red
S2 Boom Up Pressure Switch Yellow
S3
C9 Auto Mode Pressure Switch Green
Port Function Hose Colour Torque
(Nm)
A1 Swing Right Violet 47
A2 Swing Left Orange 47
A3 A3 Multi SH Valve Blue 47
A4 A4 Multi SH Valve Red 47
A5 Dipper Out Light Green 47
A6 Dipper In Pink 47
A7 A7 Multi SH Valve Yellow 47
A8 A8 Multi SH Valve Green 47
B1 Swing Right Violet 47
B2 Swing Left Orange 47
B3 Boom Up Blue 47
B4 Boom Down Red 47
B5 Dipper Out Light Green 47
B6 Dipper In Pink 47
B7 Bucket Close Yellow 47
B8 Bucket Open Green 47
C1 Boom Priority Bucket Light Blue/
Blue
34
C2 Boom Load Hold Red/Green 34
C3 Dipper Out Light Green/
Violet
34
C4 Dipper Pink/Violet 34
C5 Arm Load Hold Pink/Green 34
C6 34
C7 Swing Lock Orange 34
C8 Swing Priority Orange/
Green
34