Maintenance Flashcards
Cab full tilt height
15’ 10’’
The brakes must be set for the hydraulic lift system to __.
operate
Manual Cab Tilt :
Operate the hand pump and lift the cab to the full tilt position. The pump may need
to be cycled ____ before the cab begins to lift.
20 or more strokes
When the pads are new, the floating pin will be exposed ___.
3⁄4”.
When the pads are worn to replacement conditions, the floating pin will be nearly flush to the bushing or within ____ of the edge of the rubber bushing (approximately the thickness of a quarter).
1/16”
To manually release the spring brake chamber, unscrew (turn counter- clockwise) the___ bolt located at the end of the spring brake chamber utilizing a _____ or socket assembly.
1⁄2” diameter / 3⁄4” box end wrench
A Cold Check may be made when the fluid temperature is ___.
60ºF – 120ºF.
Perform a Hot Check at the first opportunity after normal operating temperature ____ is reached.
160ºF - 200ºF
The alternator is a Niehoff ___ and is of the self-energizing type.
340 amp
To avoid damage to vehicle electronic components, voltage supplied to a vehicle’s electrical system must not exceed ____.
16.0 volts
The 70-watt metal halide lamps have an average life expectancy of ____; operate at high temperatures and at pressures up to 50 psi.
10,000 hours
Turn off/unplug and allow to cool (_____) before replacing bulb.
wait at least 5 minutes
Start and run engine, engage high idle and check voltage again (_____).
13.7 Volts minimum
Weekly Engine
Run engine for ___ at high idle with air conditioning at maximum cool and all electrical accessories activated.
10 minutes
Weekly Brake
Rear at ___ and front pin at ____ note and report. Rear less than 1⁄4” and front pin less than1/16” call in and schedule brake job.
1⁄4” / 1/16”
F377 Steering Box
Have an assistant move the steering wheel back and forth with short (____) rapid movements.
40-60
F377 Belts
Report defect if belt tension is loose enough to allow more than ___ deflection measured at a point midway between pulleys.
1⁄2”
Front Tire Pressure
120 PSI
Rear Tire Pressre
90 PSI
Tires shall be replaced when tread depth is at or less than ___ measured at any point
on a major tread groove.
4/32”
