TM 5-3895-382-10
Operation Section
4-39
Towing Information
Towing Information
Personal injury or death could result when towing
a disabled machine incorrectly.
Block the machine to prevent movement before
releasing the brakes. The machine can roll free if it
is not blocked.
Follow the recommendations below to properly
perform the towing procedure.
These towing instructions are for moving a disabled
machine a short distance, not more than few meters
(feet); at a low speed, not faster than 2 km/h (1.2 mph);
to a convenient location for repair. These instructions
are for emergencies only. Always transport the
machine if a long distance move is required.
Shielding must be provided on the towing machine, to
protect the operator if the tow line or bar should break.
Do not allow an operator on the machine being towed,
unless the operator can control the steering and/or
braking.
Before towing, make sure the tow line or bar is in good
condition and has enough strength for the towing
situation involved. Use a towing line or bar with a
strength of at least 1.5 times the gross weight of the
towing machine for towing a disabled machine stuck in
mud or when towing on a grade.
When towing, attach the tow line only to the tow eyes
on the frame, if equipped.
Do not use a chain for pulling. A chain link can break
causing possible personal injury. Use a wire rope cable
with loop or ring ends. Use an observer in a harmless
position to stop the pulling procedure if the cable starts
to break or unravel. Stop pulling whenever the pulling
machine moves without moving the towed machine.
Keep the tow line angle to a minimum. Do not exceed
a 30° angle from the straight ahead position.
Sudden machine movement could overload the tow
line or bar and cause it to break. Gradual and smooth
machine movement will work better.
Normally, the towing machine should be as large as
the disabled machine. Satisfy yourself that the towing
machine has enough brake capacity, weight and
power, to control both machines for the grade and
distance involved.
To provide sufficient control and braking when moving
a disabled machine downhill, a larger towing machine
or additional machines connected to the rear could be
required. This will prevent it from rolling uncontrolled.
All different towing situation requirements cannot be
given; since, minimal towing machine capacity is
required on smooth level surfaces and maximum
towing machine capacity is required on inclines or poor
surface conditions.
Any towed machine, when loaded, must be equipped
with its own brake system operable from the operator's
compartment.
Consult your Caterpillar dealer for towing a disabled
machine.
Engine Running
If the power train and the steering system are
operable, and the engine is running, the machine can
be towed a SHORT DISTANCE or can be pulled out of
mud.
The operator on the towed machine MUST steer in the
direction of the tow line.
Make certain that all instructions outlined in this topic,
Towing Information, are carefully and exactly followed.
Engine Stopped
Shutting off the engine will result in loss of
machine steering.
Additional steps may be required before towing the
machine with the engine stopped. Avoid damaging
inoperable power train, steering system, and brake
system.