Cdl Pretrip

Front 1

Vehicle Overview
As you approach the truck, what are 5 things you look for?

Back 1

1. Look for the vehicle leaning to one side.
2. Look under the vehicle for fresh oil, coolant, grease, or fuel leaks.
3. Check the area around the vehicle for hazards such as people, other vehicles, objects, low-hanging wires, limbs, etc.).
4. Make sure the bumper is not about to fall off if it hasn't already.
5. Check for obvious problems such as a stolen trailer or an abandoned dog tied to your grill.

Front 2

What should you check when viewing the engine compartment

Back 2

Engine oil level.
Coolant level in radiator; condition of hoses.
Power steering fluid level; hose condition (if so equipped).
Windshield washer fluid level.
Battery fluid level, connections, and tie downs (battery may be located elsewhere).
Automatic transmission fluid level (may require engine to be running).
Check belts for tightness and excessive wear (alternator, water pump, air compressor)--learn how much "give" the belts should have when adjusted right, and check each one.
Leaks in the engine compartment (fuel, coolant, oil, power steering fluid, hydraulic fluid, battery fluid).
Cracked, worn electrical wiring insulation.

Front 3

After you start the engine, which guages should you check and what should the gauges read?

Back 3

Oil pressure. Should come up to normal within seconds after engine is started.
Air pressure pressure should build from 50 to 90 psi within 3 minutes.
Ammeter and/or voltmeter. Should be in normal range(s).
Coolant temperature. Should begin gradual rise to normal operating range.
Engine oil temperature should begin gradual rise to normal operating range.
Warning lights and buzzers. Oil, coolant, charging circuit warning, and antilock brake system lights should go out right away.

Front 4

What Emergency Equipment should be in the cab?

Back 4

1. Spare electrical fuses, one for each type in use.
2. Three red reflective triangles.
3. Properly charged and rated fire extinguisher that has a pin and is mounted to the floor.

Front 5

What is the procedure for checking the external red and amber Lights?

Back 5

Make sure the parking brake is set, turn off the engine, and take the key with you. Turn on headlights (low beams) and four-way emergency flashers, and get out of the vehicle and make sure the lights are clean, not cracked and functioning properly

Front 6

What is the procedure for the Walkaround light inspection?

Back 6

Turn off the engine, turn on the 4-way flashers and the headlights
Go to front of vehicle and check that low beams are on and both of the four-way flashers are working.
Push dimmer switch and check that high beams work.
Turn off headlights and four-way emergency flashers.
Turn on parking, clearance, side-marker, and identification lights.
Turn on right turn signal, and start walk-around inspection. Turn on left turn signal. Walk around again with finger out of your nose this time.

Front 7

What do you check for when inspecting the wheel rims?

Back 7

Not bent, cracked or damaged.
No welds.
Lug nuts are OK
Hub oil is OK

Front 8

What do you check for when picking the lice out of your big brother's Lug Nuts?

Back 8

Lug Nuts: Check that all lug nuts are present, free of cracks and distortions, and show no signs of looseness such as excessive rust or shiny threads.
Make sure lug nuts are equally tightened (assure an equal amount of threads are showing on all studs)

Front 9

What do you check for when inspecting the Wheel Hub Oil?

Back 9

Assure seals are not leaking, and if rubber they are soft and pliable.
See that hub oil seals and axle seals are not leaking If the hub has a sight glass, the oil level is adequate. Oil should be 90 weight gear oil.

Front 10

What do you check for when inspecting the Wheel Spacers If equipped?

Back 10

Illegal welds, Check that the spacers are not bent, cracked broken or rusted through.

Spacers should be evenly centered, with the dual wheels and tires evenly separated

Front 11

What do you check for when inspecting the Door(s)/Mirror(s) ?

Back 11

Check that door(s) are not damaged and that they open and close properly from the outside.
Hinges should be secure with seals intact.
Check that mirror(s) and mirror brackets are not damaged and are mounted securely with no loose fittings

Front 12

What do you check for when inspecting the Fuel Tank ?

Back 12

There must be at least two metal straps and two rubber straps. The rubber straps help to prevent a static charge, among other things.
Check for warn, damaged or missing rubber straps.
Check the tank for cracks or damage.
Check that tank(s) are secure, cap(s) are tight, and that there are no leaks from tank(s) or lines.
Check to see if the seal on the inside of the cap is in working condition.

Front 13

What do you check for when inspecting the Battery/Box?

Back 13

Wherever located, see that battery(s) are secure, connections are tight, and cell caps are present.
Battery connections should not show signs of excessive corrosion.
Battery box and cover or door must be secure.

Front 14

What do you check for when inspecting the Drive Shaft?

Back 14

See that drive shaft is not bent or cracked.
U-bolts should be secure and free of foreign objects

Front 15

What are 2 things you can check for when inspecting the Exhaust System?

Back 15

Check system for damage and signs of leaks such as rust or carbon soot.
System should be connected tightly and mounted securely.

Front 16

What do you check for when inspecting the Frame?

Back 16

Look for cracks, broken welds, holes or other damage to the longitudinal frame members, cross members, box, and floor.

Front 17

What 2 things do you check for when inspecting the Mud Flaps and Splash Guards?

Back 17

Check that splash guards or mud flaps are not damaged and are mounted securely.

Front 18

What do you check for when inspecting the Rear Door?

Back 18

Check that doors and hinges are not damaged and that they open, close, and latch properly from the outside, if equipped.
Ties, straps, chains, and binders must also be secure.

Front 19

What do you check for when inspecting the Air/Electric Lines?

Back 19

Make sure they will not hit any moving parts. They should be hanging with a clearance above the cat walk of 6 inches OR MORE. Listen for air leaks. Assure that the air hoses and electrical lines are not frayed, pinched, kinked, chafed, spliced, or worn (steel braid should not show through).
Make sure the lines are not pinched, or dragging against tractor parts.

Front 20

What do you check for when inspecting the Cat Walk?

Back 20

Check that the catwalk is solid, clear of debris, and securely bolted to tractor frame.

Front 21

What do you check for when inspecting the Fifth Wheel?

Back 21

Make sure it's well greased.
Check for cracks or breaks in the platform structure which supports the fifth wheel skid plate. Check that the kingpin is not bent.
Make sure the visible part of the apron is not bent, cracked, or broken.
Check that the trailer is laying flat on the fifth wheel skid plate (no gap).
Make sure the release arm is in the engaged position.

Front 22

What do you check for when inspecting the Catwalk??

Back 22

Check that the catwalk is solid, not damaged, clear of objects, and securely bolted to tractor frame.

Front 23

What do you check for when inspecting the Air/Electric Lines?

Back 23

Listen for air leaks. Check that air hoses and electrical lines are not cut, chafed, spliced, or worn (steel braid should not show through).
Make sure air and electrical lines are not tangled, pinched, or dragging against tractor parts.

Front 24

What do you check for when inspecting the Mud Flaps and Splash Guards?

Back 24

Make sure they are not torn, damaged and are mounted securely.

Front 25

What do you check for when inspecting the Doors?

Back 25

Check that doors and hinges are not damaged and that they open, close, and latch properly from the outside, if equipped.
Ties, straps, chains, and binders must also be secure.

Front 26

Name 3 things you can check when inspecting the Exhaust System?

Back 26

1. Check the system for signs of leaks such as rust or carbon soot.
2. Check the system for missing, loose or damaged parts.
3. Assure the exhaust system is mounted securely.

Front 27

What do you check for when inspecting the Battery/Box?

Back 27

Wherever located, see that battery(s) are secure, connections are tight, and cell caps are present.
Battery connections should not show signs of excessive corrosion.
Battery box and cover or door must be secure.

Front 28

What do you check for when inspecting the Air/Electrical Connections?

Back 28

Check that trailer air connectors are sealed and in good condition.
Make sure glad hands are locked in place, free of damage or air leaks.
Make sure the trailer electrical plug is firmly seated and locked in place

Front 29

What do you check for when inspecting the Header Board?

Back 29

Check the header board to see that it is secure, free of damage, and strong enough to contain cargo.
On enclosed trailers, check the front area for signs of damage such as cracks, bulges, or holes.

Front 30

What do you check for when inspecting the Landing Gear?

Back 30

Check that the landing gear is fully raised, has no missing parts, crank handle is secure, and the support frame is not damaged.

Front 31

What are 5 things to check when inspecting a sliding rear door?

Back 31

1. Check that doors are not damaged.
2. Check that doors open, close, and latch properly from the outside.
3. Check that ties, straps, chains, and binders are secure.
4. Check for panels that have missing or popped rivets.
5. Assure any cables are not broken or about to break

Front 32

What do you check for when inspecting the Steering Gear Box and steering fluid Hoses?

Back 32

Check that the steering box is securely mounted and not leaking. Look for any missing nuts, bolts, and cotter keys.
Check for power steering fluid leaks or damage to power steering hoses.

Front 33

How do you check the Steering wheel Free Play

Back 33

For this inspection, the engine must be running so the hydrolics will turn the steering shaft.
Check for steering wheel play of more than 10 degrees by opening the hood, opening the drivers door, standing in door area, leaning out and watching the steering wheel shaft for movement, or lack of, while turning the steering wheel back and forth in the area of free play. Or, instead of steering shaft check tires/wheels for movement or lack of.

Front 34

Starting from the steering wheel shaft name the major parts of the Steering Linkage System.

Back 34

The steering wheel shaft, gear box, Pitman Arm, Drag Link, Steering knuckle, Castle nut with cotter pin, Spindle, Steering arm and tie rod.

Front 35

What do you check for when inspecting the Exhaust System for defects?

Back 35

Loose, broken, or missing exhaust pipes, mufflers, tailpipes, or vertical stacks.
Loose, broken, or missing mounting brackets, clamps, bolts, or nuts.
Exhaust system parts rubbing against fuel system parts, tires, or other moving parts of vehicle.
Exhaust system parts that are leaking.

Front 36

What do you check for when inspecting the leaf springs and the spring mounts?

Back 36

Broken leaves in a multi-leaf spring or leaves that have shifted. Leaves with missing areas that are 1/4 of the total leaf length.
Loose, bent or broken saddle mounts, Hangers, U bolts or C clamps.

Front 37

Name 5 things that could go wrong with a suspension system?

Back 37

1. Spring hangers that allow movement of the axle from its proper position.
2. Cracked or broken spring hangers.
3. Missing or more than 1/4th broken leaves.
4. Leaves that have shifted so they might hit a tire or other part.
5. Leaking shock absorbers.

Front 38

Name four engine compartment fluids you should to check.

Back 38

1. Engine oil level.
2. Coolant (radiator fluid).
3. Power steering fluid.
4. Windshield washer fluid. level.

Front 39

What should you check the engine compartment belts for?

Back 39

Check belts (alternator, water pump, air compressor)for tightness and excessive wear, frayed edges, learn how much "give" the belts should have when adjusted right, and check each one.

Front 40

Name 6 fluids that might leak.

Back 40

Fuel, coolant, oil, power steering fluid, hydraulic fluid, battery fluid

Front 41

What Tire Problems should you check for?

Back 41

Too much or too little air pressure.
Bad wear. You need at least 4/32-inch tread depth in every major groove on front tires. You need 2/32 inch on other tires. No fabric should show through the tread or sidewall.
Cuts or other damage.
Tread separation.
Dual tires that come in contact with each other or parts of the vehicle.
Mismatched sizes.
Radial and bias-ply tires used together.
Cut or cracked valve stems.
Regrooved, recapped, or retreaded tires on the front wheels(steer wheels). These are prohibited.

Front 42

What should you check for when inspecting things that are rubber?

Back 42

Make sure they are Soft and pliable, Not cracked or broken, No dry rot

Front 43

When approaching the vehicle from a distance, what 7 things should you look for?

Back 43

1. Make sure tractor-trailer is not leaning to one side.
2. Make sure nothing is hanging off.
3. Look under truck for any major puddles or leaks (fuel, oil, anti-freeze or power steering fluid).
4. Assure the bumper is bolted on tight.
5. Assure the license plate is current.
6. Look for any big glaring safety concerns such as pet dogs tied to the bumper.
7. Look for power lines or other hard to see obstacles.

Front 44

When inspecting the Alternator what should you check for?

Back 44

Make sure it is mounted securely, electrical lines not loose/ frayed. Assure the belt is Properly adjusted with no greater then ¾ inch play.
Assure the belt is not worn or frayed.

Front 45

When inspecting the Water Pump what 3 things should you check for?

Back 45

1. Make sure it is Bolted on tight.
2. Assure it is not leaking coolant.
3. If belt driven, assure there is no more then 3/4 inch of play.

Front 46

When inspecting the Power Steering Pump & Reservoir what 4 things should you check for?

Back 46

Make sure it is
1. Bolted on tight,
2. No Leaks
3. The reservoir is filled
4. If applicable check belt for play greater than 3/4 inches.

Front 47

When inspecting the Exhaust system, what 4 components should you check?

Back 47

1. Make sure all nuts, bolts and clamps are tight.
2. Assure there are no exhaust leaks as evidensed by soot deposits around holes or joining hardware.
3. Assure the muffler, tail pipes and verticle stack are not missing or damaged.
4. Assure no electricle wires, air lines or hoses of any type are not touching the hot exhaust system.

Front 48

When inspecting the radiator what should you check for?

Back 48

Make sure the Anti-freeze is Filled to the proper level and the pressurized cap is tight. Assure Coolant hoses are not leaking and there are no visible holes, bulges, or cuts in the hoses. Assure clamps are not too tight or loose

it is

Front 49

When inspecting Windshield the what should you check for?

Back 49

Make sure it is Not cracked or broken, dirty and there are no illegal stickers

Front 50

When inspecting the Windshield Wipers what should you check for?

Back 50

Make sure they have good tension against the windshield and the blade is not cracked, worn or broken

Front 51

When inspecting the FRONT SUSPENSION what should you check the Front Spring Hanger for?

Back 51

Make sure it is not cracked or broken and is bolted on tight

Front 52

When inspecting the suspension, what should you check the Rear Spring Hanger & Shackle for?

Back 52

Make sure

Front 53

Before leaving the cab area to check other truck components, what should you do?

Back 53

Make sure the parking brakes for the tractor/trailer are applied and put the ignition key in your pocket so nobody moves the truck while you are underneath it.

Front 54

When inspecting the suspension shocks what should you check for?

Back 54

Make sure they are bolted on tight at the top and bottom and not leaking oil.

Front 55

When inspecting the FRONT SUSPENSION, what five things should you check for?

Back 55

1. Assure the front Spring Hanger is Not cracked or broken, bolted on tight.

2. Assure the Leaf Springs are not cracked, broken or that any one leave is more than 1/4 missing.

3. Assure the C-clamps are tight & the U-bolts are over the saddle and not broken. Assure the nuts are tight at the bottom (so saddle won’t slip).

4. Assure the Rear Spring Mount/bracket & it's Shackle are not cracked, broken or loose.

5. Assure the hydrolic Shocks are Bolted on tight at the top and bottom and that they are not leaking oil.

Front 56

When inspecting the STEERING LINKAGE what should you check for?

Back 56

Make sure the Steering Shaft is Not cracked, broken or bent. Make sure the u-joint is tight and properly greased.

Make sure the Gear Box is Bolted on tight, mounted securely and not leaking any power steering fluid.

Make sure the Pitman Arm, Drag Link, Upper & Lower Steering Control Arm, Tie Rod, and Castle Nuts are Not bent, cracked or
broken. Make sure all nuts and bolts are tight. Make sure the the castle nuts have cotter pins, and all joints are properly greased.

Front 57

When inspecting the brake chamber and nearby brake components what should you check for?

Back 57

Make sure the Air Line is Not leaking any air. Make sure there are no cuts in the line and the line is not touching or binding on anything.

Make sure the Brake Chamber is Bolted on tight and not leaking air.

Assure the slack Adjuster Roll pin has it's cotter pin and is properly adjusted (less than one inch of play with the brakes released, 2 inches of travel when applied, 1 inch when released).

Make sure the Brake Shoe linings have At least ¼ inch of friction material and are not cracked, broken, missing, or contaminated with gear oil, grease or other fluids.

Brake Drums should have No cracks, breaks or illegal welds. Assure there is no excessive grease, or oil build-up inside the brake drum.

Assure the Inner Wheel Seal is Not leaking any oil.

Front 58

When inspecting the FRONT WHEELs what should you check for?

Back 58

Inner & Outer Rim Not cracked or broken, no welds.

All 3 Sides of Tire No cuts, gouges, or foreign objects (glass, nails,metal), tread depth must be at least 4/32” in all

major grooves. Can not be a recap. Must also be the same size and type of tire as other side of vehicle.

Lug Nuts All there and tight. (tightness checks – rust trails under lug nuts, space between
lug nut and rim, or shiny threads or stripped threads

Hub Seal Bolted on tight, not cracked, broken and not leaking.

Hub Oil, Make sure there is oil in the hub if there is a sight glass

Valve Stem Not leaking air and has a cap (check with tire pressure gauge), make sure it is filled to
manufacturers specification. ALWAYS CHECK AIR PRESSURE WHEN TIRE IS COLD

Front 59

When inspecting the tire's Valve Stem what should you check for?

Back 59

Valve Stem Assure they are Not leaking air and have a cap (check with tire pressure gauge), make sure it is filled to
manufacturers specification.

Front 60

When inspecting the SIDE OF THE TRACTOR what should you check for?

Back 60

Steps & Grab Handles Bolted on tight and not broken.

Mirror Arm Bolted on tight, mounted secure, and not broken.

Mirror Glass Not cracked or broken.

Door Make sure door latch works, it does hold the door shut, check door hinges, make sure they are in
good shape.

Window, Make sure it rolls up and down.

Front 61

When inspecting the FUEL TANK what should you check for?

Back 61

Fuel Tank Not leaking.
Fuel Cross Over Line Secure & not leaking, not hanging to low.
Saddle Straps Not broken, nuts and bolts are tight, and mounted secure.

Fuel Lines up to the engine are not leaking.

Fuel Cap, Make sure there is a rubber gasket on the inside of the fuel cap and the cap is tight.

Front 62

When inspecting the SIDE OF THE TRACTOR what should you look for?

Back 62

Battery Box Bolted on tight, mounted secure, straps not cracked or broken, batteries in good condition.
Steps & Grab Handles Not broken, bolted on tight.
Cat Walk Not broken, bolted on tight.
Drive Shaft Not bent or cracked, u-joint is tight and proper greased at both ends.
Air Tanks Straps are not broken, not leaking. Drain if required.

Front 63

When inspecting the TRACTOR DRIVE AXLE WHEELS what should you check for?

Back 63

Inner & Outer Rim Not cracked or broken, no illegal welds, nothing in-between tires that could fly out. Must
have proper and equal spacing between the rims

3 Sides of ALL DRIVE Tires No cuts, gouges or grooves or foreign objects(nails, glass, metal). Must have at least
2/32 inch tread depth in each major groove, must also be same size and type all the way across vehicle.

Lug Nuts All there and check for tightness. (tightness checks – rust trails under lug nuts, space between
lug nut and rim, or shiny threads or stripped threads

Axel Seal Bolted on tight, not leaking any oil.

Valve Stem Not leaking air, must have a cap, check with tire gauge. Make sure tire is filled to
manufacturers specification.

Front 64

When inspecting the COUPLING SYSTEM what should you check for?

Back 64

Mounting Bolts All there and all tight.

Fifth Wheel Platform Not cracked or broken .

Release Handle Is in the locked position.

Fifth Wheel Skid Plate Make sure it is properly greased, not cracked or broken, no space between plate and
apron.

Trailer Apron Not bent,cracked or brokeLOOK UNDER TRAILER & make sure locking jaws are tight around
kingpin.

Air Lines between tractor/trailer make sure lines are hooked up correctly (Red – Red Blue – Blue)make sure the glad
hands are put together properly, lines can’t be tangled or touching or binding on the tractor frame

Electrical Line make sure line is hooked up correctly and line can’t be touching or binding on the tractor frame.

Front 65

When inspecting the REAR OF THE TRACTOR what should you check for?

Back 65

Identification Lights, signal lights, running lights, marker lights, clearence lights & Reflectors are clean and not cracked, broken or missing and of the proper color (red).

Mud Flaps Bolted on tight, not rubbing up against tires and meet safety regulations.

Front 66

When inspecting the Trailer Header Board what should you check for?

Back 66

No loose panels or any missing rivets.

Front 67

When inspecting one Side of the Trailer wall what should you check for?

Back 67

Assure there are no cracked or broken panels and there are no missing rivets.

Front 68

When inspecting the Frame cross members what should you check for?

Back 68

Assure none are cracked, bent, damaged. Make sure they are bolted or rivited on all the way across and have no missing rivets.
Assure they are not bowed or sagging

Front 69

When inspecting the Landing Gear what should you check for?

Back 69

The support struts are not bent or cracked, they are bolted on tight, check crank handle, make
sure the nut and bolt is tight and that it works in HI and LOW gear and there is a cradle to hold it.check the sand shoe, make sure it is bolted on tight and there are no foreign objects that could fly off.

Front 70

When inspecting the SIDES OF TRAILER what should you check for?

Back 70

Panels & Cross Members No loose side panels or missing rivets. Cross members not cracked or broken, bolted on tight

all the way across, no missing rivets.

Air Lines At Rear of Trailer Not leaking, not touching or binding and hung properly.

Air Tanks Bolted on tight, not leaking.

Sliding Tandem Release handle is in the locked position, safety pin is in its place, if it has one, the locking pin is
thru the frame on both sides.

Frame Not cracked or broken.

Front 71

When inspecting the rear (TRAILER) suspension what 5 things should you check for?

Back 71

1. Front Spring Hanger Not cracked or broken and welded tight to frame.

2. Leaf Springs Not cracked, broken or missing.

3. Torsion Bar Not bent or cracked, bolted on tight at each end.

4. U-bolt & Saddle Not broken, nuts are tight at the bottom, saddle has not moved.

5. Center Spring Hanger & Equalizer Bar Not cracked or broken and welded tight to frame.

6. Rear Spring Hanger Not cracked or broken and bolted on tight to frame.

Front 72

When inspecting the REAR OF THE TRAILER what should you check for?

Back 72

Lights & Reflectors Not cracked, broken or missing, they are of proper color.

Panels & Cross Members No loose side panels or missing rivets, cross members not cracked or broken, bolted on tight

all the way across, no missing rivets.

Lights & Reflectors Not cracked, broken or missing, they are of proper color.

Door Hinges Not broken, all nuts and bolts are there & in place.

Door Latches Not broken, all nuts and bolts are in place, make sure they will hold the door shut.

Bumper Not broken, cracked, is bolted on tight.

Mud Flap Bolted on tight, not rubbing against tire, does meet safety regulations.

License Plate Current, and light works.

Front 73

When checking the oil pressure guage what should you look for?

Back 73

After initially starting the engine, assure the oil pressure comes up within 5 seconds.
The Oil Pressure gauge should have between 30-60 psi of pressure

Front 74

When inspecting the dashboard components what should you check?

Back 74

Oil Pressure gauge should have between 30-60 psi of pressure

Air Pressure gauge should be building pressure (operating range 100-125 psi)

Volt Meter Charging in the green ( over 12 volts).

Make sure all dash lights work.

Wipers Turn windshield wipers on and off, make sure they are working properly.
Heater & Defroster Turn them on and off, make sure they are working properly.

Front 75

What is the procedure for testing the tractor parking breaks?

Back 75

Start the Engine
Put the transmissian in neutral
Build air pressure to cut-off
Apply tractor parking brakes
Release trailer parking brakes
Put the transmissian in its lowest gear and gently let the clutch out to make sure the TRACTOR PARKING BRAKE is
holding the vehicle

Front 76

What is the procedure for testing the red trailer parking brake?

Back 76

Start the Engine
Put the transmissian in neutral
Apply trailer parking brakes
Release tractor parking brakes
Put the transmissian in its lowest gear and gently let clutch out to make sure the TRAILER PARKING BRAKE is holding
the vehicle

Front 77

What is the procedure for performing the
AIR BRAKE LEAK TEST?

Back 77

With Engine running
Build to air pressure to governor cut-off point
Turn engine off
Turn ignition key on
Chock wheels
Release tractor & trailer parking brakes
Should not have more than 3 PSI loss in 60 seconds because we have combination
vehicle
Apply foot brake firmly
Should not have more than 4 PSI loss in 60 seconds because we have a combination
vehicle

Front 78

What is the procedure for performing the LOW AIR WARNING
buzzer test?

Back 78

Engine running

Build air pressure to cut-off level

Turn engine off

Turn ignition key to on position

Chock wheels

Release tractor & trailer parking brakes

Fan off air pressure

At or above 60 PSI the “Low Air” warning light should come on

Front 79

What is the procedure for performing the EMERGENCY BRAKES TEST ?

Back 79

With the Engine running

Build air pressure until the governor cuts out, around 125psi or manufacturer specs,
Release tractor parking brakes (Yellow knob)

Apply the red emergency brakes (red knob)
Put the tractor in first gear and gently try to move forward. Explain to the examiner that the vehicle is being held back by the trailer emergency brakes.

Front 80

What is the procedure for performing the Tractor SERVICE BRAKE TEST?

Back 80

Build up air pressure to the governor cut-off level, 100-125psi or manufacturer specs.

Release yellow tractor parking brakes

Put truck in first gear and slowly creap forward

Hold steering wheel lightly.

Slowely Apply the Foot Brake Pedal.

If the truck turns left or right as it stops BOTH brakes need adjusting

Front 81

What is the procedure for performing the trailer services brakes test.

Back 81

With the Engine running
Build air pressure to cut-off level
Release all brakes
Get tractor/trailer moving slowly on level ground (less than 5 mph)
gently pull on the trailer service brake hand valve
Make sure vehicle comes to complete stop

Front 82

Name six functions of tail lights

Back 82

1. Signaling
2. Braking
3. Backing
4. Emergency Flashers
5. Parking
6. Running