Chapter 4 Introduction to Apparatus Inspection, Maintenance, and Testing Flashcards
(55 cards)
What NFPA requires driver/operators to have certain preventive maintenance skills?
NFPA 1002
What is “maintenance?”
keeping apparatus in a state of usefulness or readiness
What is “repair?”
restore or replace parts on components which have become inoperable
Through a systematic maintenance program, who is usually the first person to identify potential mechanical problems?
the driver/operator
What purposes do apparatus maintenance and inspection records serve?
- Warranty claims
2. Accident investigations
Washing the exterior of the apparatus is one of the most commonly performed what?
maintenance functions
How should you wash the exterior of a new (up to 6 months old) apparatus?
frequently with cold water
How should you wash a vehicle to reduce the chance of damaging new paint ?
garden hose without nozzle rinse as much loose dirt before washing wash off debris before they have a chance to dry wash with good automotive soap Do not use HOT water Top to bottom washing dry with clean chamois
The driver/operator should follow a systematic procedure for inspecting apparatus based on what?
- departmental SOPs
- NFPA standards
- manufacturer’s recommendations
What are the 4 tests of the AIR BRAKE TEST 1?
- Applied Air Loss
- Low Air Warning
- Air Brake automatic Activation “Pop-Out”
- Air Compressor Cut-In and Cut-Out
What is the “APPLIED AIR LOSS” test?
Engine off, trans in Neutral, full air tanks, parking brake released
Press brake pedal to floor–after 1 minute–air pressure should not drop 3 psi
What is the “LOW AIR WARNING DEVICES” test?
engine off, master switch on
pump brake pedal to lower pressure
Warning light and buzzer should activate before 60 psi
What is the “AIR BRAKE AUTOMATIC ACTIVATION” or “POP-OUT” test?
after pumping air brakes down, continue to pump brake pedal until air brake control sets automatically
This should occur between 20-40 psi
What is the “AIR COMPRESSOR CUT-IN AND CUT-OUT” test?
air compressor builds pressure and cuts out–around 125-130 psi. Apply brake pedal and lower air pressure by 5-10 psi increments until needle on gauge begins to move upward. This indicates “Cut-In”–MUST occur no lower than 85 psi
What are the 3 components of the “air brake test 2?”
- Parking brake test
- Service brake test
- air pressure gauge needles
What is the “parking brake test?”
engine running, apply parking brake and accelerate.
What is the “service brake test?”
5 mph and apply brakes. Any steering pull, unusual feel or delay
In the “air pressure gauge needles,” what color are the primary needles? Secondary needles?
primary–white or green
secondary–red or yellow
What two types of inspections are being conducted simultaneously as the driver/operator performs daily walk-around inspections?
- commercial pre-trip
2. Firefighter operational readiness
In the “walk-around” or “circle” method, where does the inspection start? which direction does it travel?
drivers door and continues in a clockwise rotation
Why is nitrogen used in tires?
holds less moisture
dissipates heat more rapidly
better fuel mileage
What is tire “rapping” and what is it not recommended for? what is it good for?
hitting the tires with a mallet to listen to the difference in sound. It is not good for determining psi. It is helpful in determining if one of the duals is flat or low in pressure
Automatic tire changes may not be effective when?
Snow depth of 3”-6”
Slow speeds
Reverse operation
How much “free play” is allowed in a steering wheel?
No more than 10 degrees in either direction
