
107
WEBM1000 Operation Section (D6T LGP (OEM))
Towing Information
All situation requirements cannot be listed. Minimal
towing machine capacity is required on smooth,
level surfaces. Maximum towing machine capacity is
required on inclines or on surfaces that are in poor
condition.
Consult your Caterpillar dealer for the equipment
t
hat is ne
cessary for towing a disabled machine.
Running Engine
If the engine is running, the machine can be towed
for a short distance under certain conditions. The
power train and the steering system must be
operable. Tow the machine for a short distance
only. For example, pull the machine out of mud or
pull the machine to the side of the road.
The operator on the towed machine must steer the
mac
hin
e in the direction of the tow line.
Carefully follow all instructions th
at are outlined in
the Towing Information,. Ensure that the instructions
are followed exactly.
Stopped Engine or Drive Line
Defect
You can move the machine when the engine is not
operable. You must use a brake release pump or
you must remove the axle shafts.
You can use a brake release pump or you can
r
em
ove the axle shafts in order to tow the machine, if
the engine is stopped and if the driveline is not
damaged.
If an internal transmission or
a driveline failur
e is
suspected, remove the axle shafts.
For the first method, remove the axle shafts.You
m
ay remove the axle shafts from the final drives in
order to tow the machine. This will make the machine
brakes inoperable and the machine can move freely.
The towed machine will be totally dependent on the
towing machine for control and for braking.
If you are towing a machine without axle shafts, you
m
ay n
ot be able to use the implements to stop the
machine. The implement hydraulic system is pilot
controlled. With an inoperable engine or an
inoperable hydraulic pump, the accumulator
pressure will bleed off rapidly. The implement
controls will not operate when there is no pressure in
the accumulator. The implements can not be
lowered with the implement control lever in order to
stop a towed machine when there is no pressure in
the accumulator.
One or more towing machines must provide
s
uf
ficient control and sufficient braking when you are
moving a disabled machine downhill. This may
require a larger towing machine and additional
machines that are connected to the rear. This will
prevent the machine from rolling away out of control.
Consult your Caterpillar dealer or refer to the
m
ach
ine's Service Manual for axle shaft removal and
installation procedures.
For the second method, use a brake release
pump. If
a brak
e release pump is used to tow the
machine, the brakes can not be applied with the
service brake pedal or with the parking brake
control. If the brake release pump is used and you
need to apply the brakes, the brakes must be
applied with the brake release pump that is being
used.
Note: T
he axles must not be removed when you use
a brak
e release pump.
Connection of Brake Release
Pump
Note: This machine is free to move. This machine is
free to roll away. This machine has no braking ability
with the parking brake or with the service brake
when both brakes have been released.
The pressure hoses from the pump connect to the
bra
ke
valve. The pump takes oil from the sump of
the brake release pump. Then, the pump
pressurizes the brake piston cavity in order to
release the brake.