User Manual

WARNING
Never idle your vehicle for prolonged
periods
of time if you sense that ex-
haust fumes are entering the cab. In-
vestigate the cause of the fumes and
correct it as soon as possible. If the
vehicle must be driven under these
conditions, drive only with the windows
open. Failure to repair the source of
the exhaust fumes may result in death,
personal injury, equipment or property
damage.
NOTE
Keep the engine exhaust system and
the
vehicle's cab ventilation system
properly maintained. It is recommend-
ed that the vehicle's exhaust system
and cab be inspected (1) By a compe-
tent technician every 15,000 miles
(24,140 km); (2) Whenever a change
is noticed in the sound of the exhaust
system; or (3) Whenever the exhaust
system, underbody, or cab is dam-
aged.
NOTE
Use only an exact replacement DPF in
exhaust
systems. Using a noncompli-
ant DPF as a replacement could vio-
late these standards and also void the
emission system's warranty.
Driveline Universal Joints
Refer to the Spicer Universal Joints and
Driveshafts service manual and lubrication
specifications.
Non-P
ACCAR Transmissions, Axles
and Hubs
For all non-PACCAR brands, see the
manufacturer's operator's manual for
recommended lubrication specifications
and maintenance intervals.
Checking Oil Level
For oil reservoir with side filler plugs
(transmission, axles, steering gear boxes,
transfer cases, etc.) the oil must be level
with the filler opening. Use care when
checking the oil level with a finger. Just
because you can reach the oil level with a
finger does not mean the oil level is
correct.
Improper Oil Level
Correct Oil Level
Main transmission
Oil Changes
CAUTION
When adding oil, types and brands of
oil
should not be intermixed because
of possible incompatibility, which could
decrease the effectiveness of the lubri-
cation or cause component failure.
An initial oil change and flush should be
performed after the transmission has been
placed in actual service. This change
MAINTENANCE - Lubricants
198 Y53-6113-1A1 (11/20)
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