VOCATIONAL door-to-door refuse
applications are not approved for this
transmission.
OFF-HIGHWAY applications are
approved for the PRO configuration
only.
This transmission uses a coolerless
design; however, vehicles that are
•
110,000 lbs GCW or greater
• equipped with specific PTOs
• used in certain vehicle applications
or environments
require a transmission lubricant cooler. The
oil cooler maintenance listed in the
Preventative Maintenance Schedule is for
vehicles equipped with a transmission
lubricant cooler.
If there are questions regarding which
intervals to follow, please contact a
PACCAR Powertrain distributor. Consult
the supplier for specific recommendations
where discrepancies develop between the
recommendations in the following
maintenance tables and the component
supplier recommendations.
Weekly Checks
NOTE
These checks are in addition to, not in
place of,
Federal Motor Carrier Safety
Regulations. These regulations may
be purchased by writing to: Superin-
tendent of Documents U.S. Govern-
ment Printing Office Bookstore 710 N.
Capitol St.
N.W. Washington, DC
20402, or ContactCenter@gpo.gov.
Transmission
Perform the following checks in addition to
those checks listed in the vehicle
operator's manual.
• T
ransmission (VOCATIONAL) -
Inspect exterior for leaks.
• Transmission (VOCATIONAL) -
Check the oil level: refill as
required (See for maintenance
instructions).
• Transmission (VOCATIONAL) -
Inspect oil filter and exterior seals
for damage: replace as necessary.
Every 7,500 mi / 12,000 km
Every 7,500 mi / 12,000 km
Main and auxiliary Transmission - Lubrication (ON-HIGHWAY and CITY DELIVERY)
• Inspect exterior for leaks.
•
Check the oil level: refill as required (See Lubrication on page 54 for maintenance instructions).
• Inspect exterior seals for damage, and replace as necessary.
MAINTENANCE - Weekly Checks
Y53-1349-1A1 (02/2022) 47
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