GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 386

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.
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.
Chassis Lubrication
New vehicles are lubricated at the
factory. After the vehicle is placed in
operation, regular lubrication and
maintenance intervals, based on the
type of service and road conditions,
should be established. The loads
carried, speed, road and weather
conditions all contribute to the
frequency of lubrication intervals.
Thorough lubrication and
Service and Maintenance
maintenance at the specified
intervals will ensure outstanding
lifecycle value and will reduce
overall operating expense.
In some types of operation, and
where operating conditions are
extremely severe (such as in deep
water, mud, or unusually dusty
conditions), the vehicle may require
lubrication after every 24 hours of
operation.
Only lubricants of superior quality
should be used. The use of inferior
products will reduce the service life
of the vehicle or result in failure of
its components. See Recommended
Fluids and Lubricants 0 398.
The lubrication intervals specified
should be performed at whatever
interval occurs first, whether it is
kilometers (miles), hours, or months.
See Maintenance Schedule 0 361.
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