User Manual

Peak Operational Temperature:
203°F (95°C)
First 3,000-5,000 mi / 4,800-8,000 km
Main and Auxiliary Transmission
• Take vehicle to a PACCAR Powertrain distributor to determine the peak operating temperature for specific vehicle application.
This temperature will determine which transmission maintenance intervals should be used for this vehicle (see Automatic
Transmission Maintenance on page 29).
Every 60,000 mi / 96,000 km / 6 mos
Oil Cooler
• Clean the fins (air-to-oil type) and body. Check the hose condition and for leaks: replace as required. (Refer to Cooling System
Maintenance in your chassis operator's manual maintenance instructions.)
Main and Auxiliary Transmission – (VOCATIONAL and OFF-HIGHWAY)
• Drain lubricant while warm. Flush each unit with clean flushing oil and refill. Contact your PACCAR Powertrain distributor to
drain the transmission.
Every 120,000 miles / 193,000 km / 4 yr
Main and Auxiliary Transmission – (CITY DELIVERY)
• Drain lubricant while warm. Flush each unit with clean flushing oil and refill. Contact your PACCAR Powertrain distributor to
drain the transmission.
MAINTENANCE - What is Preventative Maintenance?
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