Pre Trip Inspection

 

Pre Trip Inspection
Class A CDL Pre-Trip Inspection Tractor Trailer The purpose of this inspection is to make sure the vehicle is safe to operate, and to see if you have the knowledge and skills to inspect your vehicle. You may have to walk around the vehicle and point to or touch each item and explain to the examiner what you are checking and why. You will not have to crawl under the hood or under the vehicle. 
 
 
FRONT OF THE TRACTOR

Marker Lights:

(Five lights on a top of the tractor)

• Proper color • Working • Not broken • Not cracked

Winfshield:

• Clean • Not broken • Not cracked 

Winfshield Wipers:

• In good condition • Working properly 

Hood:

• Not damaged • Not broken • In good condition • Securely locked 

Grill:

• Must be present • Stably mounted • Not broken • In good condition • Clean 

Mirrors:

• Must be clean • Not broken • Adjustable from inside • Mirrors brackets must be well mounted to the door

Head lights: 

• Must be clear • Not broken • Not damaged • In good condition. • Working properly

Turn Signals:

(Two functions – turn signal and emergency flasher)

• Must be clear • Color must be amber or orange • Not damaged • In good condition. • Working properly

Bumper:

• In good condition • Well mounted to the frame • No missing parts

Registration Plate:

• Must be well tight to the bumper • Clean and visible • Sticker must be valid.

Leaks:

(The leaks can be two kinds: Oil – from transmition and engine and Fluids – from power steering system and cooling system – antifreeze leaks)

• Look for puddles on the ground • Look for dripping fluids on underside of engine and transmission • Must be no leaks. 

SIDE OF THE TRACTOR

Front Wheels:

Tires

• Do not use recap • No any bubbles • No any cuts on it • No any space between rims and tires. • Air pressure must be 80-100 PSI • In the front tire’s dept of treed must be four thirty seconds of inch (4/32”) 

Front Wheels:

Rim

• Not bent • Not cracked • No welding repairs

Lug Nuts

• None are missing • Tight – no shinny threads, or rust trails

Outer Hub Oil Seal

• Not leaking • No missing bolts • Proper oil level Valve stem • No cuts • No damages • No missing. 

Doors:

• Door latch in a good condition • Grab handles secured • The doors may be opened and closed easily • Window must be clean, not broken without cracks and in good condition.

Driver's Mirrors:

• Clean and free of obstruction • Not cracked, broken, or damaged • Mounted securely

Steps:

• Must be not broken • Clean • Free of oil, grease, snow and ice • In good condition

Fuel tank:

• Must be well mounted to the frame • No leaks on fuel tank • Cap must be locked while driving • There must be rubber between the clamps and the tank 

Under Vehicle:

• No leaks  • No low hanging wires

ENGINE COMPARTMENT - DRIVER SIDE

Radiator:

• Radiator cap – closed, no sign of leak • Check antifreeze for level and condition • Hoses attached, not cracked and not leaking Air Compressor: • Mounted Securely • No missing bolts or parts • No air leaks at lines • Check if gear or belt driven Compressor Belt • No more than ¾ inch of play • Not cracked or frayed Power Steering Reservoir: • Mounted properly • Hoses attached and not leaking • Check for level and condition Steering Gear Box: • Mounted properly • No missing parts, nuts or bolts • Lines and hoses not leaking or broken 

Steering Linkage:

Pitman arm, Drag link, Steering Column, Steering knuckle

• Not cracked, bent or broken • Castle nuts and cotter pins • Not missing and in place

ENGINE COMPARTMENT - PASSENGER SIDE

Water Pump:

• Mounted Securely • No missing bolts or parts • Hoses attached securely • No leaking hoses or water pump Belts • No more than ¾ inch of play • Not cracked, frayed, or damaged Alternator: • Mounted Securely • No missing bolts or parts • Wires good connections, not frayed Belts • No more than ¾ inch of play • Not cracked, frayed, or damaged

Oil Level:

• Check the level and condition with the deep stick Hoses and Wiring: • Not cracked, frayed, or broken • Belts no more than ¾ inch of play • Hoses not leaking

FRONT SUSPENSION

Shock Absorber:

• Mounted Securely • Not bent or dented • Not leaking Leaf Springs: • Not shifted or out of place • Not cracked, broken or missing Spring Mounts: • Mounted securely - front, back, and U-blots • Not cracked or broken

FRONT BRAKES

Hoses and Lines:

• Mounted securely • Not leaking • Not cracked or frayed Chamber: • Mounted securely • Not dented or damaged • Not leaking Slack Adjuster: • No more than 1 inch of free play at the push rod with the brakes released • Not bent, broken, loose, or missing parts Drums: • Not cracked, broken or dented • No oil leaking from inner oil seal, free of debris Linings: • No cracked, broken or missing parts • Not less than ¼ inch in thickness 

TRACTOR COUPLING AREA

Electric and air lines:

- Emergency line (red color) - Service line (blue color) - Electric line (green or black color)

• Lines should not be crossed • Lines should be no touch any part of the tractor or trailer. • Lines should be in good condition, no cuts, nothing broken. Glad hand • Rubber seal must be soft • No cuts and damages inside • Should be clean, no oil, no water, no dirt. 

Electric plug

• Must be in good condition • No corrosion inside and no missing parts inside the male connection. • The plug must be locked. 

Battery box:

• Must be well attached to the frame • Always securely locked while driving Inside we check the battery

Battery:

• No leaks from battery • No corrosion on the terminals Catwalk: • Catwalk is solid • Steps securely bolted to tractor frame • Free of oil, grease, snow and ice

Frame:

• Not cracked, or damaged • No missing bolts • No illegal welds Drive

Shaft:

• Not bent, or damaged • Coupling, U-joints appear secure

Exhaust System:

• Securely mounted • Not dented or damaged • Not leaking

FRONT OF TRAILER

Lights:

• None broken, cracked, or missing • Working and proper color of amber

Header Board:

• No holes or missing rivets

REAR (DRIVE) WHEELS

Tires:

• Can be recap (We must be sure that no any separation between recap and original tire.) • No any bubbles • No any cuts on it • No any space between rims and tires. • Air pressure must be 80 - 100 PSI • In the front tire’s dept of treed must be four thirty seconds of inch (2/32”) • No any objects between wheels, no any stone, no any bottle. 

Lug Nuts:

• None are missing • Tight – no shinny threads, or rust trails

Rim:

• Not bent • Not cracked • No welding repairs Outer Hub Oil

Seal:

• Not leaking • No missing bolts • Proper oil level

Valve stem:

• No cuts • No damages • No missing.

Space:

• Check for objects between wheels • Check for proper spacing

Splash Guards:

• Not missing or torn and properly mounted 

DRIVE AXLE SUSPENSION

Control Arm Mount:

• Mounted securely • Not bent, broken or damaged

Control Arm:

• Mounted securely • Not cracked, or broken

Shock Absorber:

• Mounted Securely • Not bent, dented or leaking

Torsion Bar:

• Mounted Securely • Not bent, broken or damaged

Air Bags:

• Mounted Securely • Not leaking

DRIVE BRAKES

Hoses and Lines:

• Mounted securely • Not leaking • Not cracked or frayed

Chamber:

• Mounted securely • Not dented or damaged • Not leaking

Slack Adjuster:

• No more than 1 inch of free play at the push rod with the brakes released • Not bent, broken, loose, or missing parts

Drums:

• Not cracked, broken or dented • No oil leaking from inner oil seal, free of debris 

COUPLING SYSTEM

Platform:

• Securely holds skid plate • Not cracked, or broken

Skid Plate (5th wheel):

• Mounted properly on the platform • Properly greased • Tilting freely

King Pin:

• Not broken, bent, or damaged

Gap:

• Check that the trailer apron is lying flat on the fifth wheel skid plate

Apron:

• No bends or damage to visible portions

Locking Jaws:

• Check that the locking jaws are fully closed around the shank of the king pin 

Release Arm:

• Not bent, broken, or damaged • Engaged in the lock position

Locking Pins:

• No missing or broken parts • Engaged and locked

SIDE OF TRAILER

Landing Gear:

• Fully raised and handle secure • No missing parts • Support frame not cracked, broken, or damaged

Frame:

• Not cracks, bends, or damaged • No missing or damaged cross members • No signs of holes or damage to trailer floor

Tandem Release:

• Locking pins secure and locked in place • Release handle is secure 

Lights & Reflectors:

• Working and proper color • Front and side are amber • Rear edge is red • Not broken, cracked, or missing

TRAILER SUSPENSION

Leaf Springs:

• Not shifted or out of place • Not cracked, broken or missing

Spring Mounts:

• Mounted securely – front, back, and U-bolts • Not cracked, or broken

Torque Rod:

• Mounted Securely • Not bent, broken or damaged

Shock Absorber (If Equipped):

• Mounted Securely • Not bent, dented or leaking

Air Bags (If Equipped):

• Mounted Securely • Not leaking 

TRAILER BRAKES

Hoses and Lines:

• Mounted securely • Not leaking • Not cracked or frayed

Chamber:

• Mounted securely • Not dented or damaged • Not leaking

Slack Adjuster:

• 90 degrees with brakes applied. • No more than 1 inch of free play at the push rod with the brakes released. • No bent, broken, loose, or missing parts

Drums:

• Not cracked, broken or dented • No oil leaking from inner oil seal, free of debris

Linings:

• No cracked, broken or missing parts • Not less than ¼ inch in thickness

TRAILER WHEELS

Tires:

• Proper inflation-company or manufacturer specification. • No bulges or cuts, can have retreads • Minimum tread depth of 2/32”

Rims:

• Not bent or cracked • No welding repairs

Lug Nuts:

• None missing • Tight – no shinny threads, or rust trails

Outer Hub Oil Seal:

• Not leaking, no missing bolts • Fluid level OK

Space:

• Check for objects between wheels • Check for proper spacing

REAR OF TRAILER

Doors:

• Not bent, broken, or damaged • Close and latch securely • Hinges secure, no damage

Door Ties:

• Not missing, broken, and securely mounted

Splash Guards:

• Mounted properly • Not missing, ripped or torn

Dot Bumper:

• Not bent or damaged

Lights & Reflectors:

• Working and proper color • Not broken, cracked, or missing Do the same check on the passenger side.

IN CAB INSPECTION

Emergency Equipment:

- Spare minimum three electrical fuses (unless vehicle has circuit breaker) - Three reflective triangles

• Must be red and in good condition

- Fire extinguisher

• Must be ABC or BC type • Fully charged • Safety pin must be present • Sticker must be valid • Securely mounted

Safety Belt:

• Latches securely • Mounted securely

Steering Wheel:

• No more than 10 degrees or 2 inches of free play

Clutch pedal:

• Engages and disengages smoothly • Free play maximum 1.5 inch • Rubbered 

Foot (Service) brake:

• No stick to the floor • Rubbered

Accelerator:

• No stick to the floor

Shifter:

• Moves in and out of gear properly • Range selector works

Water Temp Gauge:

• Gauge is working (170 – 210 degrees)

Oil Pressure Gauge:

• Gauge is working properly • Normal oil pressure (20 - 45 PSI) • Check that the warning light goes out

Ammeter/voltmeter:

• Gauge shows 12 – 14 volts

Lighting Indicators:

• Left and right turn signal • 4-Way Flashers •

High beam indicator Horns:

• Electric (Street) horn works properly • Air horn works properly • Min one must be working

Heater & Defroster:

• Move switch from heat to defrost • Check for air flow

Windshield:

• Clean and free of obstruction • Not cracked or broken

Wipers & Washer:

• Working • Mounted securely to wiper arm • Rubber not torn • Washer sprays properly

Mirrors:

• Clean • Adjusted

CHECK SERVICE, EMERGENCY AND PARKING BRAKES

Air leak test (static)

1. Air pressure must be maximum (120-130psi)

2. Transmition: 1st gear

3. Turn engine OFF

4. Release parking brakes (yellow, red knobs IN)

5. Do not touch break pedal, wait one minute, check air pressure loss is no more then 3 PSI

Air leak test (applied)

1. Air pressure must be minimum of 90psi

2. Transmition: 1st gear

3. Engine is OFF

4. Parking brakes released (yellow, red knobs IN)

5. Depress and hold break pedal one minute air leakage must be not more then 4 PSI 

Low pressure warning device test

1. Air pressure must be maximum (120-130 PSI)

2. Transmition: 1st gear

3. Engine is OFF, ignition is ON

4. Release parking brakes (yellow, red knobs IN)

5. Pump brake pedal, release (fan down) Buzzer + red light on by 60 PSI

Spring brake pop-out test

1. Air pressure must be minimum 60 PSI

2. Transmition: 1st gear 3. Engine is OFF

4. Parking brakes released (yellow, red knobs IN) • Pump brake pedal (fan DOWN) • Tractor (yellow) and trailer (red) must pop-out between 20-40 PSI • Trailer (red) pop-out first to avoid jackknife of trailer

Slack adjuster check

1. Park on level ground.

2. Apply parking brakes.

3. Put transmition on first gear.

4. Turn engine OFF and put key in the pocket.

5. Block the wheels (place chock)

6. Release parking brakes.

7. Check free play on slack adjuster manually. If it is more then 1 inch, then must be adjusted.