Chevrolet Silverado 4500HD 2022 Manual page 345

344 Service and Maintenance
2. Brake Caliper and Hoses: Check for
cracked, worn, or frayed hoses, and for
secure couplings. Check for broken, loose,
or missing parts.
3. Torque Rods and Shock Absorbers: Check
to see that the torque rods are not
cracked, broken, or missing. Check the
shock absorbers for cracks or leaks. There
should be no missing or broken
mounting bolts or worn bushings.
4. Frame: Check for cracks or bends in the
frame. Make sure there are no loose,
cracked, bent, broken, or missing
crossmembers or crossmember fasteners.
5. Wheel and Lug Nuts: Check for damaged
or bent wheels. Check to see that all the
lug nuts are present and not loose. Look
for rust trails around nuts. Ensure that
no cracks or damage are present at the
wheel mount holes.
6. 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.
Where visible, check the disc brake
caliper wear indicator to see that the
brake pads/rotor are not worn
excessively.
7. Tires: Check the tread depth and tire
inflation. Note if the tread is evenly
worn. Minimum tread depth is 3 mm
(4/32 in) on all tires. Look for cuts or
other damage to the tread sidewalls. See
if the valve caps and stems are missing,
broken, or damaged. Check dual spacing
to ensure that the dual wheels are
evenly separated, and that the tires are
not touching one another.
8. Hub: Check for obvious leaking on
outside or inside of the wheel. Inspect
axle flanges and wheel seals for leaks
and loose mounting hardware or broken
items. Check the lube level, if equipped
with sight glass.
Check the electrical wiring for proper
security, damage, and chafing.
Rear of Vehicle
1. Frame: Check for cracks or bends in the
frame. Make sure there are no loose,
cracked, bent, broken, or missing
crossmembers or crossmember fasteners.
2. Taillamps and Reflectors: Check to see
that the reflectors and taillamps are
clean. Make sure none are missing or
broken. Rear taillamps should be clean,
unbroken, and red in color.
Check the electrical wiring for proper
security, damage, and chafing.