Chevrolet Vehicle Silverado 5500HD

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 and kingpin bushing lubrication adequate

Kingpin thrust bushing lubrication adequate

Wheel bearings inspected, lubricated, and adjusted

Caution: To prevent differential and/or transmission damage on vehicles that must be towed to a service facility with the drive axle wheels on the ground, it is necessary to remove the axle shafts before the vehicle is towed. Failure to heed this caution may result in vehicle and/or engine component damage.

Caution: Do not use a chisel or wedge to loosen axle shafts and dowels. The chisel or wedge can damage hub, axle shafts, and oil seals if used. Failure to heed this caution may result in vehicle and/or engine component damage.

Shift the main differential to the locked (engaged) position.

Remove the cap screws and washers or stud nuts and washers from the flanges of both axle shafts.

Loosen the tapered dowels in the flanges of both axle shafts by holding a 3.8 cm (1.5 in) diameter brass drift or hammer against the axle shaft center and hitting it with a 2–3 kg (5–6 lb) hammer.

Remove the tapered dowels and both axle shafts from the axle assembly.

Assemble a cover over the openings of both wheel ends to prevent the loss of lubricant and keep dirt from the wheel bearing cavities.

Sign off on the axle shafts removal procedure

Cowl Vent: Ensure the air inlet cover is free of dirt and debris

Warning: Steam and scalding liquids from a hot cooling system are under pressure. Turning the pressure cap, even a little, can cause them to come out at high speed and you could be burned. Never turn the cap when the cooling system, including the pressure cap, is hot. Wait for the cooling system and pressure cap to cool

Coolant Level: Do not remove the pressure cap unless the coolant is cool. Ensure the fluid level, if cold, is within the minimum and maximum fluid level range as marked on the plastic translucent reservoir. If hot, the fluid level must be above the minimum mark, but below the fill neck

Air Cleaner: Check the air cleaner housing and hoses for loose connections or damage

Radiator and Charge Air Cooler: Check for loose mounting and damage. Inspect the condition of all the hoses for damage, cracks, and leaks. Inspect for foreign material on the face of the cooling package. Carefully brush away the collected materials without bending the cooling fins to maintain proper airflow through the cooling package

Drive Belts (Out of View): Inspect all belts for frays, cracks, loose fibers, or visible signs of wear. With the engine off, press on all belts to test for proper belt tensioner performance

Windshield Washer Fluid Level: Inspect the reservoir and verify that the fluid level is not empty and has enough fluid to last until the next inspection. If additional fluid is required, see “Lubricant and Sealer Specifications” under Capacities and Specifications 0 408, for the correct fluid type before filling. Do not use water in freezing climates

Check the electrical wiring for proper security, damage, and chafing

Check for signs of fluid puddles under the vehicle, or wet components in the engine compartment

Coated moldings should be cleaned.

When lightly soiled, wipe with a sponge or soft, lint-free cloth dampened with water.

When heavily soiled, use warm soapy water.;

Grille: Inspect for damage and security. Check the bug screen for damage and cleanliness.

Hood and Fenders: Check the hood panels and fenders for signs of breaks or damage. Ensure the hood opens and closes properly.

Lighting System: Lower the hood and inspect the parking, clearance, identification lights, turn signals, fog lamps, and reflectors on the hood, bumper, and cab. They should be clean, operational, and the proper color.

Bumper: Inspect for damage and security.

Headlamps: Lenses should be clean. If equipped, check the Daytime Running Lamps.