CARE AND MAINTENANCE
level indicated to ensure adequate lubrication of
drive axle wheel bearings.
WHEEL HUB (FRONT & TAG AXLES ONLY) 13017
Caution: The wheel bearing oil fill cap has a
small vent hole in the center to prevent
overpressure in the bearing housing. Clean
occasionally by inserting a needle.
COOLANT FLUID
Coolant level is correct when coolant is visible
through the surge tank sight glass when cold. If
coolant level is low, fill system with the same 50-
50 mixture normally used.
Caution: Use only coolant that meets DDC
specs for use in DDC engines.
The cooling system must be maintained
according to DDC maintenance specs for
coolant, ratio of 50/50 and supplemental coolant
additives (SCAs). Failure to do so could damage
the cooling system. Refer to Maintenance
Manual or DDC for instructions.
ENGINE COMPARTMENT 05069
Warning: Hot engine coolant is under high
pressure. Allow engine to cool down before
adding coolant.
WINDSHIELD WASHER TANK
The windshield washer reservoir is located in the
front service compartment door. The reservoir
has a capacity of 5.3 US gallons (20 liters).
Check fluid level regularly.
FRONT SERVICE DOOR 18381
The spray jets are located on the windshield
wipers and are angled to spray towards the
center of the windshield.
OTHER VERIFICATIONS
AIR TANK PURGE
The vehicle may be equipped with up to twelve
air tanks. Purge accessory and wet air tanks
before each trip. The primary and secondary air
tanks must be purged at every oil change. Oil
changes should be scheduled at least every
12,500 miles (20 000 km).
7-6
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