94 Maintenance Engine Air Filter DANGER Before working on or inspecting a vehicle, set the parking brakes, place the transmission in neutral and block the wheels. Failure to do so can result in unexpected vehicle movement and can cause serious personal injury or death. The engine air filter is monitored by a pressure restriction gauge mounted on the air filter housing. The gauge may be connected to the instrumentation to give a telltale signal when the air filter needs to be changed; see the vehicle Operator’s Manual. A manual gauge needs to be inspected regularly. Replace the filter according to the gauge or after a maximum of two years, whichever comes first.
Optional extra filter insert should be changed with every third main air filter. W2003932 CAUTION Continued operation with the gauge showing in the red may cause damage to the engine. Operating the engine with a damaged filter allows dust to pass directly into the engine, causing damage. Replace damaged or clogged filters. W2003946 To change the filter, remove the fasteners around the outer cover and remove the cover. Pull out the filter from the container and discard. Make sure the new filter seal is in good condition. Install the new filter in the filter container so the seal enters the guide in the back of the container. Reinstall the cover. W2003945