Care and Maintenance
102
FRONT SERVICE COMPARTMENT
12210
The accessory air tank drain cock is accessible
from the front service compartment.
ENGINE COMPARTMENT R. H. SIDE 12211
The wet air tank drain cock is accessible from
the engine compartment. All air tanks are
equipped with a drain cock underneath the tank.
Refer to the "Lubrication and Service Check
Point Chart" in this chapter for tank locations.
Drain tanks by turning cocks counterclockwise.
FIRE EXTINGUISHERS
Inspect fire extinguishers monthly to insure
operation in emergency situations.
On extinguishers with a pressure gauge, the
needle should be in the green or NORMAL
range. Refill or replace extinguisher if pressure
is below normal;
Check that seal on handle is intact;
Check that hose nozzle is in good condition and
the nozzle is free of obstructions;
Keep fire extinguishers clean.
FUEL FILTER / WATER SEPARATOR
The optional fuel filter/water separator installed
in the engine compartment is used to prevent
water from entering the fuel system. The water
separator should be drained periodically or
when the telltale light on the dashboard
illuminates. To drain water, loosen the drain
valve below the separator one quarter turn.
Close the drain valve when finished.
FUEL FILTER / WATER SEPARATOR 03062
BELT TENSION ADJUSTMENT
The radiator transfer fan and air conditioning
compressor are driven by V-belts.
Belt tensioning is applied through air bellows
which are adjusted by an air pressure regulating
valve mounted in the engine compartment, right
behind the belt tensioning pressure control
valve. The correct pressure of 50 psi (345 kPa)
is set at the factory. Periodically verify the
pressure at the regulating valve using a tire
pressure gauge and correct if necessary. The
distance between the stop and the plate at the
top of the bellow should be approximately ¼ "
(7 mm).
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