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Section G
9803/8550
Section G
1 - 1
Preparation for Towing/Winching
up to machine no. 751011
The braking system components on this machine are
integral with the hydraulic drive motors and are covered in
Section E Hydraulics.
Since the brakes are locked 'ON' whenever the engine is
stopped, the following procedures should be followed
before attempting to move a disabled machine.
It is only possible to tow or winch the machine for short
distances at slow speed in a straight line. This is because
the steering function is inoperative unless the machine is
being self-propelled.
If at all possible repair the disabled machine where it stands.
If the machine needs to be returned to the workshop for
repair, it must be winched onto a trailer or lifted onto a truck
for transportation.
!
!
CAUTION
When lifting the machine using the mainframe lifting
points it is necessary to use a lifting frame to prevent the
chains causing damage to the ROPS/FOPS structure.
GEN 9-1
!
!
CAUTION
DO NOT attempt to tow/winch the machine without first
releasing the hydrostatic braking otherwise damage will
occur to the hydraulic pumps.
3-2-1-2
1
Block the wheels to prevent accidental movement when
the brakes are released.
2
Remove the floor plates to gain access to the hydraulic
pump assembly (see Section 3, Routine Maintenance).
3
Using an internal hexagonal wrench, loosen the four
relief valves A (two on each side) on the hydraulic pump,
by a maximum of four turns.
!
!
CAUTION
DO NOT loosen the relief valves by more than four turns
otherwise hydraulic fluid will be lost.
3-2-1-3
4
Connect a hydraulic hand pump to the T-connector B in
the hydraulic feed to the brake circuit.
5
Disconnect hose C. Plug the hose and cap the adapter
to prevent loss of pressurised fluid.
6
Switch ON the starter switch, switch OFF the brake
switch.
7
Use the hand pump to pressurise the brake circuit to 12
bar (174 lbf/in
2
) to release the brakes. Disconnect the
hand pump.
8
Remove the wheel blocks only when the machine is
hitched up ready for towing/winching. Keep personnel
clear of the machine while the blocks are removed.
After Towing/Winching
1
Tighten the four relief valves A to a torque of 55 Nm (40
lbf ft, 5.6 kgf m).
2
Reconnect hose C.
3
Turn the starter switch OFF. This will vent the pressure
in the brake circuit and re-apply the brakes.
*
Issue 2*
B
C
A
206350
204330
Summary of Contents for 1CX
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