Blue Bird Coachworks 450 LXi, Owner'S Manual

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450 LXi Owner Manual 5-1 Engine Operation
Rev. “C”
~ 5-1-7 ~
5-1.3.2 Engine Starting - Safety
If a warning tag is attached to the engine start switch or to the controls, do not start the engine or move the controls. Also, do
not disengage the parking brakes. Consult with the person that attached the warning tag before the engine is started.
All protective guards and covers must be installed if the engine must be started in order to perform service procedures. To
help prevent an accident that is caused by parts in rotation, work around the parts carefully.
Start the engine from the operator’s station (cab). Never short across the starting motor terminals or the batteries. This could
bypass the engine neutral start system and/or the electrical system could be damaged.
Always start the engine according to the procedure that is described in this manual. Knowing the correct procedure will help
to prevent major damage to the engine components. Knowing the procedure will also help to prevent personal injury.
To ensure that the jacket water heater (if equipped) and/or the lube oil heater (if equipped) is working properly, check the
water temperature gauge and the oil temperature gauge during the heater operation.
Engine exhaust contains products of combustion that can be harmful to your health. Always start the engine and operate the
engine in a well ventilated area. If the engine is started in an enclosed area, vent the engine exhaust to the outside.
5-1.3.3 Ether
(if equipped)
Ether is poisonous and fl ammable. Do not inhale ether, and do not allow
ether to contact the skin. Personal injury could result. Do not smoke while
ether cylinders are changed. Use ether in well ventilated areas.
Keep ether cylinders out of the reach of unauthorized persons. Store ether
cylinders in authorized storage areas only. Do not store ether cylinders in
direct sunlight or at temperatures above 39°C (102°F). Discard the ether
cylinders in a safe place. Do not puncture or burn the ether cylinders.
5-1.3.4 Engine Stopping
Stop the engine according to the procedure in this manual in order to avoid overheating of the engine and accelerated wear
of the engine components.
Use the Emergency Stop Button (if equipped) ONLY in an emergency situation. Do not use the Emergency Stop Button for
normal engine stopping. After an emergency stop, DO NOT start the engine until the problem that caused the emergency stop
has been corrected.
Stop the engine if an overspeed condition occurs during the initial start-up of a new engine or an engine that has been
overhauled. This may be accomplished by shutting off the fuel supply to the engine and/or shutting off the air supply to the
engine.
To stop an electronically controlled engine, cut the power to the engine.
5-1.3.5 Electrical System
Never disconnect any charging unit circuit or battery circuit cable from the battery when the charging unit is operating. A
spark can cause the combustible gases that are produced by some batteries to ignite.
To help prevent sparks from igniting combustible gases that are produced by some batteries, the negative “-“ jump start
cable should be connected last from the external power source to the negative “-“ terminal of the starting motor. If the
starting motor is not equipped with a negative “-“ terminal, connect the jump start cable to the engine block.
Check the electrical wires daily for wires that are loose or frayed. Tighten all loose electrical wires before the engine is
started. Repair all frayed electrical wires before the engine is started. See specifi c instructions found later in this manual.