Controls
Primary Controls
Secondary Controls
Gauges
Warning Devices
100

This device starts the engine.

What is engine control switch?

100

This only has a gear shift lever, or touch pad.

What is automatic transmission?

100

It is used to allow you to see the sides and rear of your vehicle.

What is mirrors?

100

This gauge shows how much fuel is left in the vehicle's fuel tanks.

What is fuel gauge?

100

This device indicates when there is inadequate pressure in the air brake system.

What is low-pressure warning alarm/light?

200

This device's position means that the pedal is fully released.

What is engaged? 

200

This uses a clutch and gear shift lever.

What is manual transmission?

200

They should be used from dusk to dawn and in adverse weather conditions.

What is lights?

200

This gauge measures pressure of air in the reservoir in pounds per square inch.

What is air pressure gauge?

200

This device indicates that the ABS function is not operating.

What is ABS light?

300

This device should be about 3 to 5 seconds when starting a vehicle.

What is normal cranking time?

300

This is used to engage and disengage the clutch and to shift gears.

What is clutch pedal? 

300

Is is used to help you keep your windshield clean and free of debris.

What is windshield wipers and washers?

300

This gauge tells you if the engine is being properly lubricated.

What is oil pressure gauge?

300

This device lights up when the oil level drops below what is normal for operation.

What is oil level alarm?

400

This device should only be used when the vehicle is completely stopped.

What is parking brake control valve? 

400

This reduces the vehicle's speed without using the service brakes.

What are auxiliary brakes and retarders?

400

Temperature and fan controls allow you to select an appropriate temperature and air flow.

What is defroster?

400

This gauge normally operates around 170*F - 195*F.

What is coolant temperature gauge?

400

This device lights up when the level starts dropping, indicating a possible leak.

What is coolant level alarm?

500

This device contain electromagnets which slow the rotors attached to the drive train.

What is electric retarders? 

500

This unlocks and locks the rear tandem axles.

What is interaxle differential lock?

500

They can be turned on to assist in keeping snow and ice from accumulating.

What are mirror heaters?

500

This gauge shows the temperature of the exhaust gasses in the manifold.

What is exhaust pyrometer gauge?

500

This device may stay lit up when the interaxle differential is in the locked position.

What is differential warning light?

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