User Manual

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.)
Every 37,000 mi / 60,000 km / 3 yr
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 74,000 mi / 120,000 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.
Every 111,000 mi / 180,000 km / 4 yr
Main and Auxiliary Transmission – (ON-HIGHWAY)
• 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?
32 Y53-1331 (6/21)
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