Loader Valve - Fixed Flow. Removal And Replacement; Manual Control - jcb 214e Service Manual

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Section E
50 - 1
Removal and Replacement

Manual Control

! WARNING
Make the machine safe before working underneath it.
Park the machine on level ground, lower the arms. Apply
the parking brake, put the transmission in neutral and
stop the engine. Chock both sides of all four wheels.
Disconnect the battery, to prevent the engine being
started while you are beneath the machine.
GEN-1-2
!
Hydraulic fluid at system pressure can injure you. Before
disconnecting or connecting hydraulic hoses, stop the
engine and operate the controls to release pressure
trapped in the hoses. Make sure the engine cannot be
started while the hoses are open.
INT-3-1-11/1
Removal
*
Note: The illustration shows a valve fitted with a bolt on
auxilary spool 1. This item is only fitted to some machines,
typically Precision Control machines with extending dipper.
1 Operate the valve block levers back and forth to vent
*
residual pressure. On Precision Control machines also
operate the extending dipper foot pedal (if fitted).
*
2 Remove clevis pins A and nuts B to disconnect the
control levers from the valve block spools. Disconnect
the control cable D (if fitted). Undo the lock nut E. Undo
the housing fixing screws and slide it down the cable.
Remove the pin F.
F
9803/3280
Loader Valve - Fixed Flow
DANGER
1 G
J
H
E
D
Purchased from www.WorkshopManuals.co.uk
Hydraulics
3 Disconnect all hydraulic hoses from the valve block
and plug all orifices to prevent ingress of dirt. Label
each hose before disconnecting, this will ensure
correct position when refitting.
*
4 Uncouple the dump solenoid electrical connector G.
Uncouple the electric detent connector H (if fitted).
*
5 Loosen and remove the three fixing nuts J. Remove the
loader valve and spacing washers C.
Replacement
Replacement is a reversal of the removal sequence.
Fine jets of hydraulic fluid at high pressure can
penetrate the skin. Do not use your fingers to check for
hydraulic fluid leaks. Do not put your face close to
suspected leaks. Hold a piece of cardboard close to
suspected leaks and then inspect the cardboard for
signs of hydraulic fluid. If hydraulic fluid penetrates your
skin, get medical help immediately.
INT-3-1-10/1
After replacement check the main relief valve (M.R.V.) and
auxiliary relief valve (A.R.V.) pressure settings.
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.
B
Section E
! WARNING
A
C
J
J
50 - 1
A402470
Issue 2*