Chevrolet Vehicle 4500 Crew Cab 4x4

Caution: Do not replace incandescent bulbs with aftermarket LED replacement bulbs. This can cause damage to the vehicle electrical system.

Proper type of replacement bulbs available

Removed the two screws and lifted off the lamp assembly

Turned the bulb socket counterclockwise and pulled it straight out

Pulled the bulb straight out from the socket

Sign off on the bulb replacement

Warning: This maintenance check requires trained personnel with PPE!

Front axle mounting U-bolts, attaching or mounting bolts, and nuts are securely tightened

Enter the mileage of the vehicle

Re-torque the U-bolt nuts after the first 1 600 km (1,000 mi) and every 58 000 km (36,000 mi) thereafter

Front axle free from damaged, binding, or worn parts

Adequate lubrication in the front axle

Kingpin wear inspection requires that no weight is on the tires

Kingpin and kingpin bushing lubrication requires that the vehicle weight is off the tires and the front wheels are turned fully to the left or right prior to installing grease distribution

Kingpin thrust bushing lubrication requires that the vehicle weight is resting on the tires

Warning: To prevent property damage, personal injury, and/or death, if wheels or tires must be changed, obtain expert tire service help. Mounting and demounting of tires should only be performed by qualified personnel using necessary safety procedures and equipment.

Warning: To prevent property damage, personal injury, and/or death, do not operate the vehicle if there is a loss of steering or suspension, which could cause loss of vehicle control.

Retread tires are not recommended for use on steering axles of trucks.

Steering Gear: Look for missing or loose fasteners, power steering fluid leaks, and damage to the power steering hoses.

Brake Caliper and Hose: Check to see that the brake caliper is not cracked or damaged and is securely mounted. Check for broken, loose, or missing parts. Check for cracked, worn, or frayed hoses and for secure couplings.

Shock Absorber: Check for cracks, leaks, and missing or broken mounting bolts or bushings.

Frame: Check for cracks or bends in the frame. Make sure there are no loose, cracked, bent, broken or missing crossmembers, or crossmember fasteners.

Spring Suspension: Check the condition of the spring for cracks, breaks, or shifting. Inspect the spring hanger fasteners, shackles, U-bolts, and nuts for wear, damage, and tightness.

Brake Pads and Rotor: With the brakes released, check to see that the brake linings (where visible) are not worn excessively thin, less than 6 mm (0.25 in), or contaminated by lubricant.

Lubricate the suspension and steering components

Change 4x2 front axle wheel bearing oil (including synthetic)

Change 4x4 front axle wheel bearing grease (including synthetic)

Change rear axle oil (vocational applications)

Inspect rear axle wheel ends for leaks, lube level/condition, and check end play with dial indicator

Replace windshield wiper blades

Sign off on the vehicle maintenance

Caution: Do not replace incandescent bulbs with aftermarket LED replacement bulbs. This can cause damage to the vehicle electrical system.

Locate the fog lamp in the front bumper.

Disconnect the electrical connector from the fog lamp bulb by pressing the connector release and pulling the connector straight out of the fog lamp bulb.

Remove the fog lamp bulb from the housing by turning counterclockwise and pulling it straight out of the assembly.

Replace the bulb and reverse Steps 1–3 to reinstall.

Sign off on the fog lamps replacement