Chevrolet Silverado 4500HD 2022 Manual page 333

332 Service and Maintenance
Check air dryer heater and purge valve (if
equipped).
Lubricate front axle tie rod ends and drag
link ends (severe service applications).
Lubricate front axle king pins and busings
(severe service applications). See Front
Axle 0 288.
Check rear axle lubricant level (severe
service applications).
Lubricate steering intermediate shaft slip
joint and steering gear dust seal.
Check operation of service brakes (severe
service applications).
Check operation of parking brake (severe
service applications).
Additional Required Services Every
24 000 km (15,000 mi)
Check front axle wheel bearing end play.
Lubricate standard U-joints and slip joint
on drive shaft (identified by non-booted
slip joint) or every three months,
whichever comes first.
Lubricate the suspension and steering
components at least every other oil
change or every 12 months, whichever
comes first. (If equipped with grease
fittings).
Check generator, starter, and battery for
proper function.
Check power steering fluid level.
Vehicles that operate under normal service
conditions require the following every
24 000 km (15,000 mi):
Lubricate front axle tie rod ends and drag
link ends.
Lubricate front axle king pins and busings.
See Front Axle 0 288.
Check rear axle lubricant level.
Lubricate steering intermediate shaft slip
joint and steering gear dust seal.
Check operation of service brakes.
Check operation of parking brake.