IC Bus CE Series 2020, Operation And Maintenance Manual

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Roadside Emergencies
CAUTION
To prevent transmission damage, vehicles
should not be towed even short distances without
suspending rear wheels or removing the axle
shafts or propeller shaft.
In the event the chassis is equipped with tandem
axles and the vehicle is to be towed from the
front, the forward rear axle may be raised to
clear the road surface and secured to the frame
by chains or U-bolts, allowing only rear axle
to contact road surface.
Axle shafts must be
removed from rear axle assembly. The wheel hub
ends must be covered to prevent loss of axle
lubricant and entrance of contaminants.
Use
extreme care in securing the chains or U-bolts to
prevent possible damage of brake lines, hoses,
or other components.
CAUTION
To prevent vehicle or engine component damage,
do not use the front or rear bumper as a lift point
when lifting or jacking the vehicle.
NOTE: Important factors to keep in mind when using tow
hooks:
• Use both tow hooks when retrieving vehicle.
• Use a slow steady pull, do not jerk on hooks.
• Tow hooks are not designed for towing, retrieval only.
Before moving the towed vehicle, check for adequate road
clearance of vehicle components.
IC Bus recommends
unloading the towed vehicle prior to towing to reduce any
abnormal loads to the vehicle components resulting from the
towing procedures. Before towing, be sure to fully release the
parking brake; either Air or Hydraulic brake system.
Towing Preparation: Air Parking Brakes
The spring actuated type parking brake can be released by
recharging the air system with at least 64 psi (441 kPa) of air. If
brake system does not retain air pressure, then manually cage
the spring brakes.
Towing Vehicle With Front Wheels Suspended
When it is necessary to tow a vehicle with the front wheels
suspended,
extra precautions must be taken to avoid
transmission or differential damage.
Disconnect the axle shafts at the rear axle to prevent the wheels
from driving the differential and the transmission. If axle shaft
is not disconnected, remove the rear axle shafts from the axle
assembly. Cover the wheel hub ends to prevent loss of axle
lubricant and entrance of contaminants.
Towing Vehicles With Rear Wheels Suspended
Whenever possible, it is preferable to tow a disabled vehicle from
the rear by raising the rear of the chassis. When towing a vehicle
with the rear of the chassis suspended, the front wheels must be
locked in the straight ahead position.
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