Chp 2 Flashcards
Maint required by
NFPA 1002
NFPA 1071 is for mechanics
Maintenance def
Keeping apparatus in a state of usefulness. Intended to reduce unexpected and catastrophic failures
Repair def
To restore that which is inoperable
Drivers can fix/inspect
Batteries Braking system Coolant system Electrical system Fuel system Hydraulic fluids Oil Tires Steering Belts Tools, appliances, equipment
Guideline for checks
Inspection finds a problem Driver documents per policy Driver notifies immediate supervisor Problem is followed up on per policy Immediate if NFPA 1911 serious issue
Cleaning
Steam cleaning may remove lubrication
May need to relube after a heavy cleaning
New apparatus need gentle washing with cold water for 6 months to harden paint
Use garden hose with no nozzle
Work top down
Dry with chamois or squeegee
Cleaning glass
Only use paper towel. Shop towels may have grit in them.
Cleaning interior
Vacuum, use soap or cleaner, no solvents, ventilate, careful around electronics, keep hinges and slides free of debris, lubricate per mfg
Waxing
Not for first 6 months
Wash and dry first
Follow mfg, some new ones don’t need it
CDL
License to drive vehicles 26,001 lbs or more
Circle or walk around method
Start at driver door and go clockwise. Includes:
Operational readiness inspection
Pretrip road worthiness inspection
Operational readiness inspection
Inspect apparatus and equipment on it that its in place, clean, and ready for use
Pretrip road worthiness inspection
Visual inspection that major chassis components are present and working
Functional check
Operating a system or component to make sure it works
Park outside, weather permitting
Approaching the vehicle
Look for body damage or sever lean
Terrain its parked on
Fluid leaks
Tire checks
Type: don’t mix radial and bias-ply, same size and weight ratings based on gross axle weight
Condition: tread depth, tread separation, cupping, excessive wear on sidewalls, cuts, dry rot, cracks, impalements
Inflation: per sidewall/mfg. Max pressure on sidewall is not operating pressure.
NFPA 1911 requires tires replaced 7 years, regardless
Note
Load mgt system
Electrical monitoring system that shed electrical load in a predetermined order if the chassis voltage begins to drop below a level
Overload
Operating something above its ampacity; over time may overheat and damage equipment
Load sequencer
Turns lights on at intervals to disperse start up load
Load Monitor
Watches system for additional loads that may threaten system
Load shedding
At overload, starts dropping less important electrical equipment
Manual shift transmission
Part of poer train that turns torque from engine to rotation to wheels. Disengages trany to allow start, stop and changing gears
Throw out bearing
Pushes internal clutch fingers to pedal. Not enough play wears out, too much doesn’t fully release trans
Steering wheel play
No more than 10 degrees (2” for 20” steering wheel)
Curb weight
Weight off the assembly line, no tools etc
Gross vehicle weight
Max weight you can operate safely in ideal conditions
Side to side variance from overload should not be >7%
Two categories of preventative maintenance
Apparatus and pump
20’ stopping distance
35’
Air tank alarms
Horn stops working at 80
Alarm at 60
Spring brake at 20-45
Park can hold on
20% grade
Dual braking system
Primary: service brakes in rear
Secondary is front brake
Batter check
Date stamp and inspection eye for maint free
