operators_manual

Table Of Contents
Every 30,000 mi / 48,000 km
11
Cooling - Extended Life Coolant (ELC)
Check coolant/antifreeze condition. (Refer to Cooling System Maintenance on page 250 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 288 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 288 for maintenance
instructions.)
Fuel and Tanks - Fuel Tank StrapsFuel Tank on page 273
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 282 for maintenance instructions.)
Heating and Air Conditioning - Heater and Air Conditioner
Perform the checks per Heater and Air Conditioner Maintenance on page 276
Air - Air Compressor Governor
Replace air strainer. (Refer to Air Compressor on page 238 for maintenance instructions.)
Air - Air Lines
Check condition and routing to prevent chafing. (Refer to Air Compressor on page 238 for maintenance instructions.)
11
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
212 Y53-6126-1A1 (01/21)
5