ENGINE MAINTENANCE - Maintenance Procedures Fuel Filter Removal Procedure for removing the PACCAR MX-11 fuel filter. 1. Clean the fuel filter cap and surrounding area to ensure dirt does not fall into the fuel module. Fuel Filter Installation - PACCAR MX-11 Procedure for installing the PACCAR MX-11 fuel filter. Follow the steps below to remove the fuel filter: Follow the steps below to install a new fuel filter: 1. Verify the sealing O-ring that is supplied with the filter kit is installed on the fuel filter cap and lightly coat the O-ring with fuel. 2. Install the new fuel filter cartridge to the cap, then insert into the fuel module.
2 Fuel Module CAUTION Dirt in the fuel system can lead to sig- nificant damage to the fuel system. Failure to comply may result in equip- ment or property damage. 1 2. Loosen the fuel tank cap to relieve any pressure in the fuel tank. 3. Remove the fuel filter cap by rotating it counter-clockwise with a wrench, automatic draining of fuel will be initiated, wait 5 minutes for complete fuel draining to prevent fuel from leaking or dripping on the starter motor. 2 3 NOTE Depending on the vehicle’s fuel sys- tem configuration the fuel filter housing may not completely drain of fuel.
If this is the case, take care when installing the new filter as this may cause fuel to spill from the filter housing. 4 NOTE The fuel filter cartridge is a disposable filter and must not be cleaned and reused. Dispose of the filter as chemi- cal waste. 3. Tighten the fuel filter cap by rotating it clockwise until the filter cap O-ring makes contact with the fuel module. Then tighten the filter 1. Fuel Filter Cap 2. Fuel Filter 3. Manual Priming Pump 4. Fuel Filter Housing 4. Remove the fuel filter cartridge. Y53-1166-1G1 (08/2018) 61