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TCFE PROCEDURE:
INITIAL FILL WITH GRAVITY HOSE WITH ENGINE OFF AND COOL
1. Open heater supply valve at rear of engine block and close heater return valve at the transmission oil
cooler.
2. Open 1/4 inch vent line valve located above radiator and direct vent line flow back into the radiator
fill neck.
3. Fill radiator with engine coolant until full and close heater supply valve.
4. Start engine and run at high idle (1500 RPM). Refill radiator if coolant level drops. Open heater supply
valve on rear of engine block. Allow coolant to flow through vent line back into top of radiator. It is
very important to verify this coolant flow. Do not run engine longer than 50 seconds unless a flow of
coolant is evident at vent line.
5. After solid stream of coolant (no bubbles) is evident at vent line discharge, close vent line valve. Refill
radiator and install radiator cap. Check for leaks. Open heater return valve.
6. Shut off engine. Fill coolant recovery bottle to 1 inch above cold fill mark. (Level of coolant in bottle
will only stabilize after several heating and cooling cycles.)
TCRE PROCEDURE
1. With engine off, shut all engine heater gate valves.
2. Fill cooling system completely, including surge tank, with coolant and run engine for a few minutes to
bleed air from cylinder block and heads.
3. Open the heater hose supply line gate valve. Refer to following pages for heater cutoff valve loca-
tions. Turn on optional heater water pump if so equipped.
4. Run engine between 1200 and 1500 RPM, loosen bleeder valve located in plastic tubing on LH side of
surge tank, bleed air and coolant through bleeder valve until air is eliminated from heater system.
(Stop bleeding when continuous stream of coolant comes from bleeder valve. The air bubbles in the
bleeder line may be seen thru the surge tank.) NOTE: It will be necessary every few moments to refill
the surge tank.
5. When all the air has been purged from the heater system, open gate valve in heater hose return line.
6. Run engine between 1200 and 1500 RPM until thermostat opens. To assist in deaerating the entire
cooling system, accelerate the engine a few times after the thermostat opens. NOTE: Thermostats
have opened when upper radiator tank and radiator hose becomes hot.
7. Refill cooling system including radiator and surge tank.
CAUTION: Failure to properly bleed all the air out of the engine and heater circuit could result in the loss
of an engine.
Содержание TC/2000
Страница 1: ...Owner s Manual TC 2000 ...
Страница 3: ...2 ...
Страница 106: ...105 NOTES ...
Страница 111: ...Part Number 1919331 Blue Bird Corporation P O Box 937 Fort Valley GA 31030 ...