Chapter 6. Recovery And Transportation; Towing; Safety Rules; Towing A Machine With Inoperable Engine - Bell B40C 6X6 Operator's Manual

Articulated dump truck
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CHAPTER 6. RECOVERY AND TRANSPORTATION

Towing

Safety Rules

Always consult your BELL EQUIPMENT Product
Support Representative before towing a disabled
machine.
Always chock the machine before towing or releas-
ing the brakes and/or disconnecting the prop shafts.
Only use a rigid tow bar preferably an A-frame.
Ensure the tow bar is strong enough to tow a ma-
chine at least 1.5 times the gross weight of the
towing machine when towing from mud or on a
grade.
Never exceed 2 km/h (1.2 mph) when towing a dis-
abled machine for short distances.
Load a disabled machine onto a suitable breakdown
vehicle or remove the prop shafts between the trans-
mission and drop box when moving it long distances.
Shielding must be provided on the towing machine
and the disabled machine if the operator can be in-
jured due to the tow bar breaking.
Do not allow any unauthorised personnel on the dis-
abled machine.
Gradual smooth movement is necessary for safe
towing. Quick movements will overload the tow bar
and cause it to break.
The towing machine must be the same size or larger
than the disabled machine. Ensure the towing ma-
chine has sufficient brake capacity, weight and
power to control both machines. Take account of the
ground conditions and gradient when towing a dis-
abled machine.
A larger machine and a solid tow bar is required
when towing a disabled machine downhill. An addi-
tional machine connected to the rear may also be
required to prevent the disabled machine from rolling
away.
If the disabled machine is to be articulated (maneu-
vered) a towing machine with a solid tow bar must be
attached to the front of the machine for maneuvering
and a machine attached to the rear for controlling.
870984-01
June 1, 1999
Minimum towing capacity is required for towing on
smooth level surfaces and maximum towing capac-
ity is required for towing on gradients and poor
ground conditions
‹ CAUTION
Failure to lift the wheels off the road or discon-
nect the driveline can cause damage to the
transmission.
The engine cannot be started by pushing or towing.
Towing a Machine with Inoperable
Engine
‹ WARNINGS
1. Before releasing the brakes, always chock the
wheels to prevent the machine from rolling.
2. Ensure the brakes of the towing machine is
sufficient to hold the combined mass of the tow-
ing machine and the disabled machine.
3. Removing the driveshafts on either side of the
park/emergency brake renders the park/emer-
gency brake inoperative.
With the engine stopped the machine hydraulic and
pneumatic systems are not operative. This means
there is no powered steering or braking system.
Note: The park/emergency brake may be released
mechanically but the steering system will remain in-
operative. Articulation can only be obtained by
disconnecting the steering cylinders hydraulic sup-
ply hoses.
Road speed must not exceed 2 km/hr (1 to 2 mph).
Before towing disconnect the driveshaft between the
transmission and the transfer case.
With the brakes released and the driveshafts discon-
nected, the towing machine must be capable of
steering and stopping the complete mass of the dis-
abled machine.
Note: Given the danger in towing a vehicle without
an effective braking system it is recommended that
the machine is transported on a suitable breakdown
vehicle.
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