Chevrolet Silverado 4500HD/5500HD/6500HD Owner Manual (GMNA-
Localizing-U.S.-12102101) - 2019 - crc - 10/2/18
388
Service and Maintenance
{
Warning
All new GM vehicles use
non-asbestos brake linings.
However, exposure to excessive
amounts of brake material dust
may be a potentially serious
health hazard. To help protect
yourself and others, follow all of
the precautions in this Section
when servicing the brakes.
Follow these precautions:
.
Always wear a respirator
approved by National Institute
for Occupational Safety and
Health (NIOSH) or Mine Safety
Appliances (MSA) during all
brake service procedures. Wear
the respirator from removal of
the wheels through assembly.
.
Never use compressed air or dry
brushing to clean brake parts or
assemblies.
.
Clean brake parts and
assemblies in the open air.
During disassembly, carefully
place all parts on the floor to
prevent getting dust into the air.
Use an industrial vacuum
cleaner with a HEPA filter
system to clean dust from the
brake drums, backing plates,
and other brake parts. After
using the vacuum, remove any
remaining dust with a rag
soaked in water and wrung until
nearly dry.
.
Never use compressed air or dry
sweeping to clean the work
area. Use an industrial vacuum
cleaner with a HEPA filter
system and rags soaked in
water and wrung until nearly dry.
Dispose of used rags with care
to prevent getting dust into the
air. Use an approved respirator
when emptying vacuum cleaners
and handling used rags.
.
Wash your hands before eating,
drinking, or smoking. Vacuum
your work clothes after use, and
then launder them separately,
without shaking them, to prevent
fiber dust from getting into
the air.
Hydraulic Brakes
Brake Inspection and Adjustment
This inspection or adjustment
should only be performed by
qualified service personnel and
must be in accordance with
instructions provided in the service
manual.
Establish a regular schedule for
periodic cleaning, lubrication, and
inspection, based on the type of
vehicle operation. It is difficult to
predetermine an exact maintenance
interval (time or mileage) since
vehicles are used in a variety of
applications and conditions.
See
and
On a periodic basis of at least once
per year, inspect the entire brake
system for:
.
The proper operation of the
service and parking brakes.
.
The condition of the discs,
calipers, and ABS exciter teeth.
.
Hydraulic fluid leaks.
