OPERATOR'S MANUAL MAINTENANCE

Section E - Hydraulics
E-121 E-121
9803/9880-3
Shuttle Valve
Removal and Replacement
TE-025
!MWARNING
Hydraulic Pressure
Hydraulic fluid at system pressure can injure you.
Before connecting or removing any hydraulic hose,
residual hydraulic pressure trapped in the service
hose line must be vented. Make sure the hose service
line has been vented before connecting or removing
hoses. Make sure the engine cannot be started while
the hoses are open.
INT-3-1-11_2
!MWARNING
Fluid Under Pressure
Fine jets of fluid at high pressure can penetrate the
skin. Keep face and hands well clear of fluid under
pressure and wear protective glasses and gloves.
Hold a piece of cardboard close to suspected leaks
and then inspect the cardboard for signs of fluid. If
fluid penetrates your skin, get medical help
immediately.
INT-3-1-10_3
Removal
1 Make the machine safe, refer to Service
Procedures, Section E.
2 Disconnect the electrical connections to the pressure
switches. Label each connector to ensure correct
position when refitting.
3 Disconnect all hydraulic hoses from the valve and
plug all orifices to prevent ingress of dirt. The hoses
should be labelled, if not, label each hose before
disconnecting, this will ensure correct position when
refitting.
4 Remove the four M10 bolts from rear of valve and
remove valve from machine.
Replacement
Replacement is a reversal of the removal sequence.
Note: All hydraulic adapters that are installed together with
a bonded sealing washer must also have JCB Threadseal
applied to the threads of the adapter.