Module #10: Commercial Pre-Trip Vehicle Inspection Flashcards
Book 8 - Commercial Pre-Trip:
Check the Engine Compartment Belts for up to ___ in. play at the center of the Belt.
3/4 in.
Book 8 - Commercial Pre-Trip:
Check for a minimum TREAD DEPTH of ____ on Steering Axle Tires and _____ in. on all other tires.
4/32
2/32
Book 8 - Commercial Pre-Trip: COLA
The Air Compressor must CUT-IN no lower than ___ psi.
85 psi.
Book 8 - Commercial Pre-Trip: COLA
Run the Engine at Fast Idle. The Air Governor will cause the compressor to CUT-OUT at ___ psi max. (Normal Range is between ____-____ psi).
130 psi max.
110-120 psi normal
Book 8 - Commercial Pre-Trip: COLA
Leakage Test: Turn OFF engine, release ALL Brakes, then apply steady pressure and HOLD for ONE full minute. The Air Pressure should not fall more than ___ psi for Single Vehicles and ___ psi for Combination Vehicles.
3 psi
4 psi
Book 8 - Commercial Pre-Trip: COLA
Test the Low Pressure WARNING SIGNAL. With the engine OFF the signal must activate between ___ - ___ psi.
55 - 75 psi
Book 8 - Commercial Pre-Trip:
Hydraulic Brake Check: Pump the Brake pedal ____ times then apply firm pressure to the pedal and hold for ____ seconds. Pedal should NOT move.
3 times
5 sec.
