Behind the Wheel Training - PPT

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Behind the Wheel Training

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Behind the Wheel Training:

Behind the Wheel Training Pre-Trip Inspection for School Buses by Oregon Department of Education

Checking Coolant:

Checking Coolant Check coolant level Check that radiator cap is secure Check radiator for proper mounting and leaks Check all coolant lines and hoses for leaks

Checking Alternator and Water Pump:

Checking Alternator and Water Pump Check that alternator is securely mounted Check belts for frayed cracked or excessive wear Check belts for proper tension (½ to ¾ “ deflection) Check that wires and connections are securely mounted Check water pump for leaks

Checking Air Compressor:

Checking Air Compressor Check that compressor is securely mounted Check belts for frayed cracked or excessive wear Check belts for proper tension (½ to ¾ “deflection) Check air lines and connections for air leaks Check for oil or coolant leaks

Air Compressor:

Air Compressor Crank Shaft Piston Intake Valve Exhaust Valve Cylinder Head

Checking Power Steering:

Checking Power Steering Check that pump is securely mounted Check belts for frayed cracked or excessive wear Check for proper tension (½ to ¾ “ deflection) Check fluid level must be between add and full Check lines and hoses for leaks and worn spots

Checking Steering System:

Checking Steering System Spindle Tie Rod Steering Shaft Steering Wheel Steering Arm Steering Box Drag Link Pitman Arm Steering Knuckle

Checking Steering Box:

Checking Steering Box Check that steering box is securely mounted Check for fluid leaks Check lines hoses for leaks, loose connections and worn spots

Steering Components:

Steering Components Steering Box Pitman Arm Drag Link Steering Knuckle Spindle Tie Rod

Checking Pitman Arm and Drag Link:

Checking Pitman Arm and Drag Link Check pitman arm, drag link, steering knuckles and tie rod ends for loose connections, cracks, missing nuts or bolts and that joints or sockets are not worn

Front Springs and Hangers:

Front Springs and Hangers

Checking Front Springs:

Checking Front Springs Check for missing, shifted, cracked or broken spring leafs Check for broken or distorted coil springs Check air ride suspension for cuts and bulges in the air bag and listen for air leaks

Checking Front and Rear Spring Hangers:

Checking Front and Rear Spring Hangers Check for cracked or broken spring hangers Check for broken, missing or damaged pins and bushings Check for broken or missing bolts, U-bolts or other axle mounting parts

Checking Front Shock Absorber:

Checking Front Shock Absorber Check that shock absorber is mounted securely Check for broken, cracked, loose or missing parts or bolts Check for signs of fluid leaking

Checking the Slack Adjuster and Brake Adjustment:

Checking the Slack Adjuster and Brake Adjustment Check for broken, loose or missing parts Check for proper adjustment when pulled by hand the brake rod should not move outward more than ¾ inch ¾ inch

Checking Brake Chambers and Brake Hoses:

Checking Brake Chambers and Brake Hoses Check that brake chamber is securely mounted, no loose or missing bolts Check that brake chamber is not cracked or dented Check hoses for cracks and worn spots Check hoses, lines and couplings for leaks

Checking Front Brakes and Drums:

Checking Front Brakes and Drums Check for cracked or discolored brake drums Check linings for cracks, broken or missing pads and worn dangerously thin Check linings for signs of oil or grease contamination

Brake Components:

Brake Components Axle Brake Drum Brake Spring Brake Shoe Cam Roller “S” Cam Slack Adjuster Brake Chamber Push Rod Adjusting Nut Clevis

Checking Front Tire Minimum 4/32”:

Checking Front Tire Minimum 4/32” Check tire tread depth 4/32 inch minimum Check that tire is original rubber (retread or re-grooved tires are not allowed on front axle of school buses) Check side walls for abrasions, bulges or cuts Check for valve stem and cap broken, damaged or missing Check tire for proper inflation (the most accurate is with an air gauge)

Checking Front Tire and Wheel:

Checking Front Tire and Wheel Check for cracks or welds Check for dents in bead flange If split rim, check lock ring for space between ends of rings Check lug holes for distortion

Checking Lug Nuts and Hub/Axle Seal:

Checking Lug Nuts and Hub/Axle Seal Check that all lug nuts are in place and free from cracks and distortions Check for tightness (try to turn each nut by hand) Look for signs of looseness such as rust trails or shiny threads

Front Hub and Seals:

Front Hub and Seals Check oil/grease seals and axle seals for leaks Check for loose or missing bolts If wheel has sight glass visually check oil level through sight glass (do not remove cap)

Checking Fuel Tank and Drive Line:

Checking Fuel Tank and Drive Line Check fuel tank, door and cap Check that drive shafts are not bent or cracked Check drive shafts are securely mounted Check that drive shaft guards are present and securely mounted

Broken Drive Line:

Broken Drive Line

Checking Slack Adjuster for Proper Angle:

Checking Slack Adjuster for Proper Angle Check slack adjuster for broken, loose or missing parts Check the angle between the push rod and the slack adjuster arm is slightly more than 90 ° when the brakes are applied or pulled by hand

Checking Rear Brake Chamber:

Checking Rear Brake Chamber Check that brake chamber is securely mounted and there are no loose or missing bolts Check that brake chamber is not cracked or dented

Checking Brake Lines:

Checking Brake Lines Check hoses for cracks and worn spots Check hoses lines and couplings for leaks

Checking Brake Drum and Brake Linings:

Checking Brake Drum and Brake Linings Check for cracked or discolored brake drums Check linings for cracks, broken or missing pads Check linings for signs of oil or grease contamination

Worn Brake Linings:

Worn Brake Linings Check that brake linings are not worn dangerously thin

Rear Spring Diagram:

Rear Spring Diagram Leaf Springs Shackle Rear Spring Mount Front Spring Mount Torque Arm Spring Stops Helper Springs

Checking Rear Springs:

Checking Rear Springs Check for broken, cracked, missing or shifted spring leafs Check for broken or distorted coil springs

Broken Rear Spring:

Broken Rear Spring

Air Ride Suspension Diagram :

Air Ride Suspension Diagram Air ride suspension should be checked for bulges or cuts in the air bag Check air bags for leaks

Rear Spring Hanger:

Rear Spring Hanger Check that spring hangers are securely mounted Check for broken or cracked spring hangers Check for broken, damaged or missing pins and bushings Check for broken or missing bolts, U-bolts or other axle mounting parts

Torque Arm:

Torque Arm Check that arm or bar is not broken, cracked or missing Check for broken loose or missing mounting bolts or parts

Checking Rear Tires:

Checking Rear Tires Check tire tread depth (2/32 inch minimum) and evenly worn Check that tread is original rubber or retread (re-grooved tires are not allowed on any axle of school buses) Check retreads for separation from the tire Check sidewalls for abrasions, bulges or cuts Check between the dual tires for rocks or debris Check valve stems and caps broken, damaged or missing Check tires for proper inflation

Checking Rear Wheels:

Checking Rear Wheels Check for cracks or welds Check for dents in bead flange If split rim, check lock ring for space between ends of rings Check that dual wheels are evenly separated and that the tires are not touching one another Check lug holes for distortion (egg shape or oblong)

Checking Lug Nuts for Missing or Loose:

Checking Lug Nuts for Missing or Loose Check that all lug nuts are in place, free of cracks and distortions Check for tightness(try to turn each nut by hand) look for signs of looseness such such as rust trails or shiny threads

Checking Rear Wheel Seals for Leaks:

Checking Rear Wheel Seals for Leaks Check oil/grease seals and axle seals for leaks Check for loose or missing bolts

Checking Mud Flaps:

Checking Mud Flaps Check that mud flap is mounted securely and in good condition

Throttle and Brake Pedals:

Throttle and Brake Pedals Check pedals Check drivers floor Check drivers seat Check drivers seat belt

Checking Drivers Compartment:

Checking Drivers Compartment Check all gauges Check steering free-play (less than 2”) Check gear shifter lever Check clutch free-play Check horn Check indicator lights Check heaters Check defroster for air flow across windshield Check dome lights

Air Brake Test:

Air Brake Test Build air to governor pressure Static test (brakes released) no more than 2 p.s.i. drop Applied test no more than 3 p.s.i. Drop Low air warning light and buzzer on at 60 p.s.i. Parking brake on around 30 p.s.i. (start engine)

Air Brake Test:

Air Brake Test Air pressure check from 85 to 100 p.s.i. at (1200 to 1500 RPM’s) in less than 45 seconds Parking brake test in drive give acceleration Service brake test foot on brake give acceleration

Low Air Brake Warning Device:

Low Air Brake Warning Device Wig Wag

Checking Drivers Compartment:

Checking Drivers Compartment Check sun visor Check all mirrors Check windshield glass Check windshield wipers and washers Check PA system Check accessories

Checking Emergency Equipment:

Checking Emergency Equipment Check fire extinguisher Check first aid kit Check body fluid kit Check emergency reflectors Check belt cutter Check for fuses

Checking Seats, Seat Belts and Windows:

Checking Seats, Seat Belts and Windows Check backs, cushions and frames Check floors and strips Check windows Check seat belts

Checking All Emergency Exits:

Checking All Emergency Exits Check rear door and buzzer Check side door and buzzer Check exit windows Check roof hatches

Checking Passenger Entrance and Stepwell:

Checking Passenger Entrance and Stepwell Check service door Check stepwell light Check door glass and seals Check steps Check grab rails

Checking Front of Bus:

Checking Front of Bus Check all lights Check glass Check wipers Check lettering Check bumper Check tow hooks

Right Side of Bus:

Right Side of Bus Check mirrors and brackets Check body, glass, lights and reflectors Check undercarriages

Checking Rear Lights and Emergency Exit:

Checking Rear Lights and Emergency Exit Check all lights Check reflectors Check lettering Check bumper Check tow hooks Check emergency exits

Left Side of Bus:

Left Side of Bus Check body, glass, lights and reflectors Check undercarriages and battery box Check stop arm, mirrors and brackets

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