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Section D
41 - 2
Electrical Switches
Joystick
Mounted
Microswitches,
Replacement
Note that the procedure shows the right hand joystick. the
procedure is very similar for the left hand joystick. Note that
where the joysticks incorporate more than one switch, all
switches must be renewed as a complete harness and
switch assembly.
Removal
1
With the operator seat set in the rear facing position (for
backhoe operation), pull off the gaiter A.
2
Reach inside the arm assembly and undo the two arm
rest fixing bolts B. Carefully lift the rear of the arm rest
C and pull it to the rear to release.
3
Uncouple the joystick harness connector D from the
servo harness. Note the orientation of the joystick.
Slacken the lock nut E followed by lock nut F. Unscrew
the joystick and remove it from the machine. Remove
lock nuts E and F.
4
Drill a small hole in the centre of plastic cap G. Screw in
a self tapping screw. Using pliers, grip the screw and
draw out the cap G. Undo screw H. Lever off the
aluminium base plate J.
5
Carefully part the two halves of the joystick making sure
that components are not lost. Lift the switches K off
their location pins. Note that replacement switches are
supplied together with a new base plate J, wiring
harness and connector already assembled.
Replacement
Replacement is the reverse of removal but note the
following:
1
When assembling the joystick ensure that the wiring
harness is located correctly. Cable tie L must be
located to prevent strain on the wire connections at the
switches. Make sure that bush M is fitted correctly (if
applicable). If spigot N has been removed make sure it
is fitted with its alignment pin P correctly located. Fit a
new plastic cap G.
2
When screwing the joystick assembly to the control
linkage be sure to orientate it correctly before
tightening the lock nut F.
9803/3280
Precision Control (Servo)
Removal
Purchased from www.WorkshopManuals.co.uk
Controls
and
Seat Mounted Microswitch, Removal, Replacement and
Adjustment.
Important Note: Some machines may be fitted with two
seat mounted microswitches, one on each side of the seat.
On Precision Control machines only switch Z is used. Note
that switch Z is located on the left side of the seat when set
in the rear facing position. When renewing the switch make
sure you re-connect the wiring harness to the correct switch.
Under no circumstances attempt to connect to the switch on
the right hand side of the seat.
Removal
1
With the operator seat set in the forward facing position
(for loader operation), uncouple the electrical connector
X. Undo the two retaining screws W and remove the
switch.
Replacement
Replacement is the reverse of removal.
Adjustment
The switch must be adjusted to operate only when the
operator seat is locked in the rear facing position. This is
essential for safe operation of the machine, preventing
backhoe operation until the operator is correctly seated.
1
With the operator seat set in the rear facing position (for
backhoe operation), locate the adjustable bolt V on the
seat pedestal. Loosen the lock nut U and screw the bolt
in or out until the switch is heard to operate. Tighten
lock nut U.
2
Start the machine and test the system.
Section D
41 - 2
Issue 1
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