Every 30,000 mi / 48,000 km
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Main and Auxiliary Transmission - Main and Auxiliary Transmission
• Check the oil level: refill as required. (Refer to Transmission Maintenance on page 272 for maintenance instructions.)
Clutch - Clutch Release Bearing
• Lubricate.
• Inspect and adjust when necessary (no adjustment required for SOLO type clutches.)
Cooling - Extended Life Coolant (ELC)
• Check coolant/antifreeze condition. (Refer to Cooling System Maintenance on page 224 for maintenance instructions.)
Steering Components - Steering Intermediate Shaft U-joints (OFF HIGHWAY or CITY DELIVERY)
• Lubricate [EP NLGI #2 HD grease, -10 to 325°F (-23 to 163°C) range]. (Refer to Steering System on page 265 for maintenance
instructions.)
Steering Components - Drag link and Tie Rod Arm Ball Sockets (ON HIGHWAY)
• Lubricate (EP NLGI #2 lithium-based, moly-filled, HD grease). (Refer to Steering System on page 265 for maintenance
instructions.)
Fuel and Tanks - Fuel Tank Straps
• Refer to Fuel Tank on page 250 for maintenance instructions.
Electrical and Lights - Fuel and Diesel Exhaust Fluid Tank Sending Unit
• Check the mounting screws and electrical connections for worn or damaged wires and connectors. (Refer to Diesel Exhaust
Fluid (DEF) Tank Straps on page 259 for maintenance instructions.)
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Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of
those listed here.
MAINTENANCE - Every 30,000 mi / 48,000 km
Y53-6076-1D1 (09/20) 189
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