This air cleaner requires no oil.
Regular service intervals, along with close visual inspection of the precleaner and dry type air cleaner are necessary for proper cleaning of the engine inlet air. The service interval will vary with the weather and working conditions. During dry, dusty months where dust conditions are severe, it will be necessary to service the precleaner and air cleaner frequently. In damp weather and other conditions of little or no dust, the service interval can be extended.
Diesel Engine Dry Type Air Cleaner
Visual inspection of the gaskets is important in keeping dust from by-passing the air cleaner filter elements. Air leakage can upset proper air cleaner action. If the condition of the gaskets is questionable, replace them. If the sealing ends of the filter element or the element pleats are damaged, replace the element.
If either the exhaust pipe or air cleaner inlet has been removed for any reason, they should be installed in the original position so that exhaust and/or oil fumes do not enter the engine air cleaner.
The Air Cleaner Service Indicator is connected to the air inlet passage. It contains a red marked piston which moves up and down due to engine demands, and when the entire piston is visible, it will lock in the raised position. The piston will remain in this position whether the engine is running or stopped; thus indicating a need for air cleaner service. After servicing the air cleaner, reset the piston by depressing the plunger in the bottom of the indicator.
AIR CLEANER SERVICE INDIAVSOR
Excessive engine exhaust smoke and/or loss of power may indicate the need for servicing the air cleaner. Never service the air cleaner while the engine is running.
The air cleaner filter elements in both sections of the air cleaner require attention at the same time as indicated in the topics, PRIMARY FILTER ELEMENT and SECONDARY FILTER ELEMENT.
Primary Filter Element: Whenever the red piston in the air cleaner service indicator locks in the visible position, remove, clean and inspect the primary filter element.
DRY TYPE AIR CLEANER
1-Wing nuts. 2-Filter case. 3-Cup. 4-Secondary filter element. 5-Primary filter element.
- 1. Loosen the wing nuts (1) and remove the cup (3) of the filter case (2).
- 2. Remove the primary filter element (5).
- 3. Remove any dirt which has accumulated on the bottom of the case and clean the filter element using one of the methods covered in the topic, FILTER ELEMENT CLEANING.
- 4. Thoroughly clean all parts of the air cleaner. Inspect gaskets and install new ones if they are damaged.
- 5. Install the primary filter element, cup and tighten the wing nuts.
Secondary Filter Element: Clean the secondary filter element if after installing the primary filter element and starting the engine, the service indicator piston still locks in the visible position.
- 1. Remove the stud nuts that secure the secondary filter element (4) and filter case (2) to the diesel engine air inlet.
- 2. Remove the air cleaner assembly and cover the air inlet to the engine.
- 3. Remove the end of the filter case as instructed in the preceding topic.
- 4. Remove the primary and secondary filter elements.
- 5. Remove any dirt which has accumulated on the bottom of the case and clean the filter elements using one of the methods covered in the topic, FILTER ELEMENT CLEANING.
- 6. Thoroughly clean all parts of the air cleaner. Inspect all gaskets and install new ones if they are damaged.
- 7. Assemble the secondary filter element and air cleaner body to the air inlet using a new gasket.
- 8. Install the primary filter element and cup. Tighten the wing nuts.
If after cleaning both elements, the air cleaner service indicator piston locks in the visible position, or the engine exhaust smoking and/or loss of power has not been reduced, replace both the primary and secondary filter elements with new AVSpare filter elements.
Replace the filter elements at least once a year.
Filter Element Cleaning:
Extra filter elements should be kept on hand for replacement or for use in the air cleaner while the elements that were removed are being cleaned.
The ends of a filter element can be damaged by bumping or tapping. Bent and/or dented ends cannot seal properly and may allow unfiltered air to enter the engine cylinders, thus causing premature engine wear.
Clean the filter element using one of the following methods:
- 1. Using clean, dry air, at a pressure not to exceed 100 PSI, proceed as follows:
Direct air at an angle against the inside (engine side) of the element to loosen any imbedded dirt. Best results can be obtained by moving the air hose so that air is directed at an angle along the complete length of each pleat.
Blow off loose dirt by directing air against the outside of the element. Repeat this procedure until the element is clean. Make certain that no dirt is inside the element.
- 2. Using clean water, at a pressure not to exceed 40 PSI, proceed as follows:
Direct water at an angle against the inside (engine side) of the element to loosen any imbedded dirt. Best results can be obtained by using a water hose without a nozzle and moving it so that water is directed at an angle along the complete length of each pleat.
Wash off loose dirt by directing water against the outside of the element.
Repeat this procedure until the element is clean. Make certain that no dirt is inside the element and that the element is thoroughly dry before installing it.
- 3. Some oily and/or sooty deposits can be removed by washing the element in a solution of warm water and a good household non-sudsing detergent. Rinse with clean water and thoroughly dry the element before installing it.
Starting Engine Dry Type Air Cleaner
Every 250 service hours clean the filter element. The element may have to be cleaned oftener under dusty conditions or whenever hard starting and/or loss of speed and power is observed. To service the element proceed as follows:
- 1. Unscrew the wing nut (1) which retains the assembly.
- 2. Remove the air cleaner cover plate (2) and the filter element (3).
STARTING ENGINE AIR CLEANER
1-Wing nut. 2-Cover plate. 3-Filter element.
- 3. Clean the element by directing clean dry air under pressure (not to exceed 100 PSI) against the inside of the element forcing air through the element to the outside. Do not let dust collect on the inside of the element.
- 4. While the filter is removed inspect and clean all parts of the cleaner before assembly.
If the element is damaged or if after cleaning, the engine is hard to start and/or loss of power has not been corrected, install a new AVSpare element.
Replace the element at least once a year.
Precleaner
Every 10 to 50 service hours, loosen the wing nut (1) that holds the cover and body assembly (2) in place. Remove the cover and empty the dust from the body assembly. Inspect the fins in the precleaner and when they are dirty, remove the entire precleaner, and wash it in water.
PRECLEANER
1-Wing nut. 2-Cover and body assembly.