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Section D
61 - 2
Dismantling and Assembly
Excavator Valve Controls
The illustration on the adjacent page shows the control rods
and linkages for the excavator control valve and is intended
as a guide to the dismantling and assembly. Note JCB +
pattern controls shown.
Dismantling
1
Park the machine on firm level ground, apply the
parking brake. Lower the loader arms, move the
excavator to the R.H. side of the machine and lower to
the ground. Switch OFF the engine and remove the
starter key. Disconnect the battery.
2
Working in the cab, remove the console panels
surrounding the excavator levers as shown at Z.
3
Uncouple the rear horn switch electrical connector and
remove the wires from the connector. Use a screwdriver
to release the wires/pins from the connector,
alternatively cut the wires and re-solder on assembly.
4
Remove the control lever knobs and gaiters.
5
Disconnect the control rods from the excavator valve
spools. Remove the bolts securing the complete lever
assembly to the excavator valve mounting plate and
withdraw the control levers and mounting bracket
through the floor aperture.
Assembly
Assembly is the reverse of the dismantling sequence.
1
Bolt the mounting bracket A to the excavator valve
mounting plate.
2
Assemble the pivot levers B and spacers C to the
mounting bracket and insert the pivot shaft D. Fit the
short control rods E (2 off) to the pivot lever assembly
as shown.
3
Assemble the excavator levers F and G to the mounting
bracket together with the universal joints H. Fit the
longer control rods J (4 off) to the lever assembly as
shown.
Note: If necessary, loosen the lock nuts and rotate the end
fittings to give equal amounts of adjustment (thread) at each
end of the control rod.
4
Connect the control rods to the excavator valve spools
with the clevis pins K.
5
Adjust the control rods as necessary, see Adjustment.
After the control rods are adjusted fit the gaiters over
the control levers.
9803/3280
Control Rods and Linkages
Purchased from www.WorkshopManuals.co.uk
Controls
6
Thread the rear horn switch cable through the control
lever and fit the wires/pins into the electrical connector.
Couple the connector to the chassis harness and fit the
control lever knobs.
7
Connect the battery, check that the controls and rear
horn switch operate correctly.
8
Refit the console panels around the excavator levers.
Adjustment
1
Fit the control lever locking pin L as shown.
Note: If there is no lever locking pin with the machine use a
suitable diameter metal bar.
2
Adjust the control rods until the locking pin is a sliding
fit, then tighten the control rods lock nuts.
Note: Make sure there is an equal amount of thread at each
end of the control rod.
3
Remove the lever locking pin L.
Section D
Z
61 - 2
A394410
Issue 1
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