7-3
Moving a Disabled Truck
MOVING DISABLED TRUCK
Any unusual power train noises noted while operating the truck should be
reported to those responsible for maintenance. Should the power train, hydraulic
or electrical systems fail, the machine should be stopped and shut down
immediately until suitable repairs can be made. If the failure is in the power train
and the truck must be moved to a service area or workshop to make required
repairs, remove the drive flange covers from the drive wheels and pull the axle
shafts and final drive planetary sun gears from the planetary assemblies. This
will prevent any possible additional damage, which may be caused by the drive
wheels turning the power train as the machine is towed. Replace the covers on
the drive wheels to retain lubricant and prevent entry of dirt.
If possible, start the engine to provide the required hydraulic pressure for
steering and braking. Never allow riders on a machine being towed without
sufficient hydraulic pressure for safe steering and braking.
If the nature of the trouble prevents engine operation, repairs must be made on
the site of the breakdown, or special arrangements made for towing the machine
safely to the repair area without steering and braking power.
If the parking brake must be released, but the engine cannot be operated to
provide the required hydraulic power needed to release the brake, refer to the
machine Maintenance Manual 165-0030, for parking brake release with
auxiliary hydraulic power source. See WARNING above.
Connect a suitable towing bar to one of the lugs on the front bumper of the
disabled machine and reverse another machine, in a straight and in-line
manoeuvre, towards the disabled machine. Connect the opposite end of the
towing bar to the towing point on the rear axle of the recovery machine and
ensure that it is securely locked.
Note: An alternative method of towing a disabled machine is by connecting an
A-Frame arrangement to the lugs on the front bumper of the disabled machine
and the towing point of the recovery machine.
098
Uncontrolled machine
movement hazard. There is
no mechanical connection
between the machine
wheels and the engine
when the parking brake is
released. Before releasing
the parking brake, make sure
the machine wheels are se-
cured with chock-blocks to
prevent or restrict unex-
pected machine movement.
When moving the machine
with insufficient hydraulic
pressure and power for safe
steering and braking, use
extreme caution to ensure
personnel and property
safety.
If using a chain or cable, be sure it is strong enough for the expected
load and properly secured.
When pulling, take up the slack slowly to avoid jerking. A chain or
cable which fails under load can cause serious injury. Stand clear.
Do not pull through a kinked chain or cable. Do not pull or tow un-
less the operator’s compartment is guarded against or out of reach
of a whipping chain or cable. Attach only to the towing points.
Failure to follow these instructions could cause serious injury or death.
Never allow riders on a vehicle being towed without
sufficient hydraulic pressure for safe braking.
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