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TM 5-4210-230-14&P-1
VEHICLE MAINTENANCE
PARKING BRAKE (BURNISHING)
(DRIVELINE TYPE)
The following burnishing procedure is required to be
performed on new vehicles or whenever the parking brake
lining and/or drum is replaced. Consult your dealer if you do
not understand the parking brake burnishing procedure for
your vehicle.
The procedure:
1.
The vehicle must be loaded (near rated GVW)
2.
With the parking brake released, turn the handle knob
of the orchlen lever until a force is obtained to apply the
brake (over center position of lever) which will result in
the vehicle making a somewhat lighter than normal
stop (3-5 feet per second) without wheel lock up.
3.
Make ten (10) stops from 16 km/h (10 mph) on a dry
hard surface road using only the parking brake to stop
the vehicle.
4.
After each stop, release the parking brake and drive the
vehicle at 32 km/h (20 mph) for 4 km (2.5 mi.) to cool
the brake.
5.
Readjust parking brake linkage (between hand lever
and brake assembly) and hand lever knob to suit your
operational requirement considering load and road
grades you are operating over.
CLUTCH (Pedal Free Travel)
When adjustment of the pedal free travel is necessary,
it is extremely important that the work be properly performed;
otherwise, early failure of the clutch will result and a costly
clutch overhaul becomes necessary.
To avoid needless delay and expense, allow only
competent and experienced servicemen to perform these
operations.
COOLING SYSTEM
ANTIFREEZE
The cooling system of your new vehicle is filled at the
factory with IH permanent-type antifreeze. IH permanent-type
antifreeze may be added undiluted if protection below -29 deg.
C (-20 deg. F) is required.
CLEANING
Once a year the cooling system should be drained and
thoroughly flushed.
Unless the cooling system is treated with a corrosion
preventative, rust and scale will eventually clog up passages
in the radiator and water jackets. This condition is aggravated
in some localities by formation of insoluble salts from the
water used.
IH cleaning solutions are available which have proven
very successful in removing accumulation of rust, scale,
sludge and grease. This solution should be used according to
the recommendation on container.
IMPORTANT
Do not use chemical mixtures to stop radiator
leaks except in an emergency. Never use
such solutions instead of needed radiator
repair.
When draining the cooling solution, disconnect the
radiator outlet hose, as large particles of sediment will not
pass through the drain.
CAUTION
When removing the pressure type cap from
the radiator, perform the operation in three
steps. Push down, loosen cap slowly to its
first notch position; then pause a moment.
This will avoid possible scalding by hot water
or steam. Continue to turn cap to the left and
remove.
IMPORTANT
If the coolant should get extremely low and
the engine very hot, let the engine cool for
approximately 15 minutes before adding
coolant; then, with the engine running, add
coolant slowly. Adding cold water to a hot
engine may crack the cylinder head or
crankcase.
COOLANT HOSES
For proper care of coolant hoses, refer to "Cooling
System Refill Capacities".
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