A heat setting is selected.
A constant flame is established.
The temperature gauge reads COOL.
The inside temperature reaches 140 degrees Fahrenheit (°F).
When the temperature gauge reads COOL.
Never, as it will result in serious engine damage.
When ambient temperature is below 32 degrees Fahrenheit (°F).
During the engine start up with the ignition switch in PREHEAT position.
Ample warm-up time.
A minimum of 45 seconds.
System voltage indicates 120 volts alternating current (VAC).
The inside chamber temperature reaches 140 degrees Fahrenheit (°F).
Without first talking with the operator.
Without first consulting your supervisor.
Unless accurate technical data is available.
Unless in the presence of an experienced mechanic.
Operate in moderate to high pressure.
Operate in low to moderate pressure.
Be semi-corrosive to metals.
Have a high boiling point.
30 pounds of oil pressure is reached on the engine oil pressure gauge.
The start switch is released.
The engine warms up.
The engine starts.
Low pressure cutout.
Pressure control cutout.
Compressor pump down overload.
Remove and store refrigerant.
Remove refrigerant and separate acids from the refrigerant.
Remove and store refrigerant and separate oil and acids from the refrigerant.
Receiver inlet valve.
Receiver outlet valve.
Discharge service valve.
An air compressor fan only.
An expansion turbine only.
A heat exchanger and an expansion turbine.
An expansion turbine and a compressor fan.
Ensure the engine is at governed speed before engaging compressor.
Allow compressor oil and discharge pressures to stabilize.
Defrost the evaporator.
Build-up oil pressure.
Condensing refrigerant absorbs heat from the air stream.
Boiling refrigerant absorbs heat from the air stream.
Condensing refrigerant looses heat to the air stream.
Boiling refrigerant looses heat to the air stream.
Permit refrigerant pressure to equalize.
Perform maximum refrigerant pump down.
Place heating/cooling switch in HEATING position.
Place the reversing valve lever in the HEATING position.
Isolate the problem.
Perform a service inspection.
Perform an operational check.
Recognize the write-up as a malfunction.
Sweating at the outlet of a component.
Frosting at the outlet of a component.
Abnormal compressor noise.
Increased suction pressure. Please
Lubricates the connecting rods.
Has high viscosity and is very inflammable.
Forms a seal between the vanes and the stator.
Permits it to be classified as a high pressure unit.
Hollow stator shaft.
Hollow rotor shaft.
Ensure minimum pressure within the oil chamber.
Ensure minimum pressure to the condensate drain.
Prevent receiver air from flowing back to the compressor by working as a check valve.
Increase the efficiency of the felt pads by ensuring they receive a constant minimum air pressure.
Between the bottom and half way up on the sight glass.
Between half way and the top of the sight glass.
Any oil level present in the sight glass.
At least one-third up the sight glass.
2/3 to 3/4 inch from the bottom of the glass.
2/3 to 3/4 inch from the top of the glass.
1/2 inch from the bottom of the glass.
1/2 inch below the top of the glass.
Warming door is not lowered for cold weather operating conditions.
Low oil level in the feed air compressor lubricant separator tank.
Booster compressor defective.
Poor air ventilation.
Bleed air from the reservoir during operation.
Purge entrapped air before operation.
Fill the outlet hoses to the aircraft.
High pressure relief.
Low pressure filters.
High pressure pump.
Flow control valve.
Water level switch.
Oil pressure switch.
Fuel level indicator.
Fuel pressure switch.
Fill switch, LS4.
Fill master switch.
Fill micro switch, FS1.
Fill to start relay switch.
Return system bypass.
300 pounds per square inch (psi) above compensator valve pressure.
300 psi above required test pressure.
500 psi above compensator valve pressure.
500 psi above required test pressure.
Weight and size.
Direction of the lift arms.
Speed of the lift arms.
Direction of the truck.
Speed of the truck.
Lift arm cylinders.
Cradle control valves.
Cradle lift arm control.
Control panel lift arm control.
A smooth movement with no binding or no jumping.
Fast steady movements with minimal jumping.
Some settling once the actuator is released.
Small amounts of residue.
Isolates the brake valve.
Isolates the counterbalance valve.
Cuts off fluid flow through the hydrostatic drive.
Cuts off fluid flow through the rear control valves.
Hydraulic system control valve.
Start in reverse.
Move in neutral.
Not start in reverse.
Not move in neutral.
Closing the shutoff valve.
Operating the hand pump.
Closing the air bleed valve.
Operating the system pump.
An audible click will be heard and the locking lever will move upward.
The unit will not move in reverse and an audible click will be heard.
Locking lever will move upward and an audible click will be heard.
The unit starts and moves in both directions.
Replace the starter.
Check the starter cables.
Remove and replace the battery.
Check the battery terminals and posts.
Bright head lights.
Control panel light.
Fluid under the unit.
Movement when the control valve is not actuated.
Opening the fuel solenoid.
Closing the engine intake air.
Shutting off fuel to the engine.
Tripping the protective circuit breaker.
Secure all doors.
Warm-up the engine.
Set the master control switch to ON.
Position the tow bar to the left or right.
Operate the unit.
Analyze the problem.
Perform a service inspection.
Give several probable causes.
Unit manufacturer’s technical order (TO).
Periodic inspection workcards.
Service inspection workcards.
Illustrated parts breakdown.
150 and 550.
250 and 500.
550 and 2000.
1000 and 2000.
Corroded battery cables.
A defective control cable.
The main disconnect switch is ON.
The engine switch is in RUN position.
Fuel system relief valve.
Flow control valve.
Safety relief valve.
Rate control valve.
High blower output.
Low blower output.
High cabin pressure.
Low flow indicator.
Blower pressure gauge.
Cabin pressure gauge.
2.1 gallons at 2,250 pounds per square inch (psi).
1.5 gallons at 2,200 psi.
1.1 gallons at 2,235 psi.
1.0 gallons at 1,135 psi.
Tighten the ram lock nut.
Loosen the ram lock nut.
Close the relief valve.
Close the air vent.
Stair support linkage.
Hydraulic cylinder assembly.
3 feet to a maximum of 15 feet.
3 feet to a maximum of 7 feet.
2 feet to a maximum of 12 feet.
2 feet to a maximum of 5 feet.
Head adapter assembly.
Main tube assembly.
Adjust the forks.
Stabilize the main tube assembly.
Raise and lower the wheel assemblies.
Engage or disengage the aircraft nose gear.
Pressure from the jack.
A control box.