Removal And Replacement - jcb JS300 Service Manual

!M
WARNING
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
!M
WARNING
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
immediately.
INT-3-1-10_3
Removal
1 Make the machine
Procedures, Section E.
2 Disconnect all the electrical connections to the
solenoids B, labelling which connector goes to which
K Fig 3. ( T
solenoid.
3 Disconnect all hydraulic pilot 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 M8 bolts from rear of valve and
remove valve from machine.
E-122

Removal and Replacement

skin, get medical help
safe, refer to Service
E-123).
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.
9813/5100-1
Section E - Hydraulics
Solenoid Valve Block
Removal and Replacement
E-122