Pierce Enforcer, Operator'S Manual

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MAINTENANCE
6-2 / Cab
© 2018 Pierce Manufacturing Inc. All Rights Reserved.
6-2.4 Hinges
IMPORTANT: Door hinges should be lubricated by spraying them with a light coating of silicone lubricant.
After spraying, clean over-spray from surrounding painted surfaces and walk areas.
Inspect hinge fasteners. Tighten loose hinge fasteners as required. Inspect the hinge for wear or damage. Hinges
can be “sprung” from the weight of crewmembers supporting themselves on the doors during entry. This will cause
the door to sag and bind on the striker. Replace sprung hinges to ensure smooth door operation.
6-2.5 Weatherstrip
Inspect weatherstrip for tears or excessive abrasion. To extent life of rubber, spray weatherstrip and window rubber
with a light coating of silicone lubricant. Clean over-spray from surrounding painted surfaces, glass, and walk areas.
6-3. Wiper Blades
Inspect wiper blades to ensure proper clearing of the windshield. Wipe the blades with a clean towel soaked in
windshield washer fluid. If this does not remedy wiper blade problems such as chatter and streaking, then the blades
should be replaced.
6-4. Heating, Ventilation, Air Conditioning (HVAC)
6-4.1 Heater Shut-Off (Optional)
Close heater line valves during warm weather to eliminate the warming affect of heater coils by slow leakage past
the control valve.
Use of the heater shut-off valve will prevent warm air from circulating through the defroster system and
may lead to a reduced ability to clear humidity from the windshield and subsequent reduced driver
visibility.