Cleaning should be done with an ammonia solution to ensure that mirrors are not obstructed. Be sure that mounting fasteners are kept tight so that mirrors will not vibrate. Check weekly and retighten, if necessary. All emergency exits should be in- spected and operated daily to ensure that they are labeled and operate properly per the instructions pro- vided.
Page Body Tie Down Tow hooks are designed to tow or pull with both hooks simultaneously. Do not pull or tow with an individual hook. This is a two-panel push- out door system which includes the panels, single cylinder drive plate assembly, control valves, and attach- ing hardware. There- fore, when working on the header drive, the right-hand end will be to your left. The door system consists of five main subassemblies. These are the base plate assembly, drive assembly, door panel assemblies LH and RH and the portal seals.
The following procedure should be followed to ensure the correct operation of the drive system. CAUTION: The air cylinder is ca- pable of producing several hundred pounds of force, use extreme caution when test operating the door system. This will light the dash switch. The pendant control is now active. Ex- tracting the lift will open the gas spring controlled access door on which is mounted a mercury switch.
Heat from the engine is picked up by the engine coolant which is pumped through the heaters inside the body and back into the engine. Page Heater Bleeding Instructions as on a charter or over-the-road activity trip.
Each passenger continually adds to the moisture content of the air, and after a period of time, the humidity can become quite high. As coolant becomes hot, pressure is built up in the cooling system. Slowly vent off pressure before removing radiator cap. Page 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 , and hose clamps. Description Capacity Quarts 78 Front Heater 3. General Care The vinyl tracks on which the vent and screen slide must be kept clean and clear of dust and sand. Vacuum and wipe clean with a soft cloth or sponge occasionally. For easier sliding, spray or wipe with silicone.
NOTE: Before removing any wiper arm, it is first necessary to operate the wipers briefly, stopping the blades in the normal park position. Lift end clip with screwdriver as shown in. This releases locking indentations A and allows end clip retainers B , to be removed through blade claw. Repeat procedure to remove retainer clip on opposite end of wiper. Bus tires and wheels should be serviced only by trained people using the proper equip- ment. Page Engine Compartment The return to normal body height is also very rapid.
This is selected by placing the switch in the up position. At this point the horn sounds and the dash light remains illuminated. Careful attention should be given to proximity of boarding passengers feet before using the kneeling system.
Engine compartment light switch. Engine start switch. See Page 37 3. Engine oil pressure gauge. Apply parking brake. Place transmission shift lever in park position. See appropriate engine manufacturers operating manual for proper starting procedures.
Starting pro- cedures vary from different engine manufacturers and also varies with temperature. If the engine temperature exceeds degrees, or if the oil pressure drops below 6 PSI, a buzzer sounds and an indicator light glows.
This testing and certification is not covered by Blue Bird warranty. Compressed natural gas is a volatile fuel stored under high pressure. Do NOT smoke while working on or around natural gas equip- ment.
The primary filter is of stainless steel construction and is located at the fill point. This filter can be checked for contamination by closing main shutoff valve on frame and then relieving pressure which is trapped between the check valve in the fill nozzle and the main system check valve. Other hydrocarbons present in natural gas include ethane, propane, some butanes, and trace amounts of other hydrocarbons.
The pressure will vary with temperature. Decreasing with lower temperature and increasing with higher temperatures. Filling appara- tus compensates for the temperature effect. Contact the manufacturer if an accidental overfill occurs. The antiknock property is a result of the high ignition temperature, resistance to autoignition, and the relatively low flame speed of natural gas. Antiknock properties allow the use of engine compression ratios in the range of compared to to for gasoline.
Page Transmission Oil Temperature Adjust the mechanical modulator per the following procedure: 1. With the modulator cable disconnected at the engine, rotate fuel control lever on the engine to full throttle position.
Page Engine High Idle Switch If excessive temperature is indicated by the transmission oil temperature gauge, check the oil level in transmission. Stop the vehicle and shift to neutral. Accelerate the engine to RPM. The temperature should return to normal within two or three minutes before the vehicle resumes operation. Fourth gear is a 1 to 1 ratio while the fifth gear is an overdrive with a.
The push-button shift selector is located on the right area of the dash. Page Check Transmission Light Occasionally, the road conditions, load, or traffic conditions will make it desirable to restrict the automatic shifting to a lower gear. Positions 2, 3, 4, 5, provide progressively greater engine braking for going down grades the lower the gear, the greater the braking effect. The push-button selector utilizes arrow buttons. Push the Up or Down arrow to the desired gear. A separate reservoir and air gauge is provided for each of these systems.
A dual treadle valve is provided for operating the service brake system. In addition to providing excellent service brake performance, this dual brake system is equipped with safety features which allow the driver to use the emer- gency stopping system through the service brake treadle valve.
Page Cooling System F. If after adjusting the pressure relief screw the pressure does not come up to specification, the pump may be at fault, repair or replace pump. NOTE: If pump is faulty it is also likely the power steering will show signs of low pressure. Page Front Axle Stop Adjustments 5. We offer options to fit your capacity and fuel type needs!
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