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PREVENTIVE MAINTENANCE - to be performed annually
Hoses
Check all water hoses for kinks that can prevent water flow or chafing that can cause failure. Look and
feel for hardening of rubber or cracks that result from aging. Hoses should be replaced when external cover
tube cracks first appear. Hoses exposed under floor and in the engine area will deteriorate faster than those
inside the body due to their exposure to the elements. Therefore, these hoses need to be checked more fre-
quently.
Coils
The heater will be most efficient when the coil and fins and air flow passages are kept clean and free from
dust and dirt. The coil should be cleaned carefully with compressed dry air or vacuum, and a soft bristle
brush. Damaged fins should be straightened with a fin comb to prevent air flow restrictions. The heater coil
can be accessed through the right front inside access panel, or, for underseat heaters, removal of passenger
seat cushions.
Motors, Switches, Blowers and Fans
Motors are essentially maintenance free and do not require lubrication or cleaning, but excessive vibra-
tion caused by damaged blower wheels or fans can cause motor damage. Check wheels and fans for obstruc-
tions or damage by running each fan alone, then listening and feeling for irregularity. Replace damaged
wheels or fans to prevent vibratory damage to surrounding and supportive housing parts and fasteners as
well as motors.
Switches are also maintenance free, but loose wiring connections to switches or motors can cause exces-
sive resistance and overheating damage. Wires to switches can be checked or repaired by removal of the
switch mounting panel next to the driver.
Panels and Housings
Fasteners which connect and retain structural and access panels should be checked and tightened as
necessary. A loose screw can allow panel vibration, resulting in excessive noise, additional fastener failure, or
metal fatigue cracks.
HOSE REPAIR
Hoses are installed with as few joints as possible so as to prevent the possibility of leaking joints. If a
portion of hose becomes damaged, a new piece of hose can be spliced in by use of 4 inch brass tube (Blue Bird
part #1701903), and hose clamps. If hose must be replaced due to aging, the entire length of hose should be
replaced. Air duct hose can be repaired with a good brand of wide PVC tape or duct tape.
Summary of Contents for TC/2000
Page 1: ...Owner s Manual TC 2000 ...
Page 3: ...2 ...
Page 106: ...105 NOTES ...
Page 111: ...Part Number 1919331 Blue Bird Corporation P O Box 937 Fort Valley GA 31030 ...