Chevrolet Silverado 4500HD 2022 Manual page 352

Danger
To prevent property damage, personal
injury, and/or death, always disconnect
the ground battery terminal first, then
the positive cable. When reconnecting the
battery cables, connect the positive cables
first, and then reconnect the negative
cables. Failure to follow this warning may
result in a direct battery short, which is a
fire or explosion hazard.
Warning
To prevent damage to electrical
components during electric welding
operations, follow these cautions: Prior to
electric welding, disconnect any negative
and positive battery cables that connect
the batteries to the vehicle. Be sure the
detached connectors are not touching the
vehicle. If welding close to an electronic
component, temporarily remove that
component. Attach the welder ground
cable as close as possible to the part
being welded.
When servicing your vehicle always:
Turn off the ignition, unless the procedure
calls for a running engine.
Set the parking brake and install wheel
chocks.
Use support stands, not a jack, whenever
you must be under a raised vehicle.
Do not smoke.
Wear safety glasses for eye protection.
Operate engine only in a
well-ventilated area.
Do not work on brakes or clutch unless
proper precautions are taken to prevent
inhaling friction material dust.
Do not wear loose clothing, hanging
jewelry, watches, or rings. Tie up long
hair and avoid rotating machinery.
Avoid contact with hot metal parts; allow
hot components to cool before working
on them.
Correct any problems that were revealed
during inspection prior to operating the
vehicle.
Service and Maintenance
Supporting Your Vehicle for Service
Warning
To prevent property damage, personal
injury, and/or death, always use floor
stands to support the vehicle before
working under it. Using only a jack could
allow the vehicle to fall.
When performing service repairs on a
vehicle, first:
1. Park the vehicle on a level concrete floor.
2. Set the parking brake and/or block
wheels to prevent the vehicle from
moving.
3. Select a jack with a rated capacity
sufficient to lift the vehicle.
4. Raise the vehicle with the jack applied to
the axle. Do not use the bumper as a
lifting point.
5. Support the vehicle with floor stands
under the axle(s).
If axle or suspension components are to be
serviced, support the vehicle with floor
stands under frame side members,
preferably between the axles.
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