0336947 JOHNSON O-RING

The first of two cleaning stages in the air cleaner is a cluster of pre-cleaner tubes which combine inertial and centrifugal forces to remove most of the contaminants from the air. The contaminants are deposited in the dust cup and the pre-cleaned air flows up through the centers of the tubes and into the element chamber. The air then flows through the main element which removes virtually all of the remaining contaminants. The safety element provides continuous air cleaning if the main element is damaged or is removed for servicing.
NEVER OPERATE THE ENGINE WITHOUT BOTH ELEMENTS IN PLACE IN BOTH AIR CLEANERS.
Checking The Engine Air Cleaners
Each of the two engine air cleaners is equipped with an indicator that shows a red signal when the main element should be serviced. If the red signal is locked in view, the main element should be serviced as soon as possible to prevent engine damage. See "Changing the Air Cleaner Elements" on page 3.0-2 for procedures.
STOP THE ENGINE BEFORE SERVICING THE AIR CLEANERS.
Each air cleaner also has a dust cup that collects the dust from the pre-cleaner. Empty the dust cup when the dust builds up to within one and one-quarter inches from the top of the cup. Remove and inspect the dust cup daily until a regular service interval can be established.When replacing the dust cup, be sure a seal is made between the cup and the body to maintain high pre-cleaner efficiency. Replace the gasket if it is not smooth and clean.
THIS IS A DRY TYPE AIR CLEANER - DO NOT USE OIL.
Changing The Air Cleaner Elements
The main element should be cleaned or replaced with a new element anytime the air cleaner indicator is locked in view. Replace a main element with a new one after six cleanings or one year of use, whichever occurs first. Change the safety element every third time the main element is cleaned or replaced with another clean element. HAVE A REPLACEMENT ELEMENT ON HAND TO INSTALL AND USE WHILE CLEANING THE DIRTY ELEMENT. THIS WILL SAVE YOU DOWN TIME.Although it is possible to clean the safety element using the procedures described for the main element, it is not recommended except in an emergency situation. Maximum engine protection is achieved by replacing the plugged safety element with a new element.To replace the main element: 1. STOP THE ENGINE, clean the dust off the access cover and unlatch it.2. Remove the access cover and main element, DO NOT REMOVE THE SAFETY ELEMENT.3. Immediately inspect the main element for any dust streaks on the inside. If there are any dust streaks, the element is damaged, THROW IT AWAY.4. Inspect the main element gasket. If the element gasket is not smooth and flat or is damaged in any way that might allow dust to get by, THROW THE ELEMENT AWAY.5. Install a new or clean main element and tighten the wing nut securely.6. Install the access cover.To replace the safety element:1. Stop the engine, clean the dust off the access cover and remove it. 2. Loosen the wing nut and remove the main element.3. Remove the locking pin from the nut, and remove the nut that secures the safety element.4. Remove the safety element and clean out any dust dislodged into the cleaner outlet.5. Install a new safety element.6. Inspect the gasket washer on the nut and replace the washer if a good air seal cannot be guaranteed.7. Tighten the nut securely and replace the locking pin.8. Install the main element and tighten the wing nut securely.9. Install the access cover.Cleaning The Engine Air Cleaner Main Element
The dirty air cleaner element can be cleaned by one of three methods: (1) washing in a solution of water and Donaldson D-1400 filter cleaning compound, (2) blowing with compressed air, or (3) washing with water alone. D-1400 is a detergent with a carbon-dissolving additive. D-1400 and water are best when the element is loaded with a combination of exhaust carbon, soot, oil and dust. Compressed air is effective when the element is loaded with dust. Washing with water alone will often work when air is not available and the element has only dust on it. Whichever method of cleaning is used, the element should be handled carefully to keep it from being punctured or dented. DO NOT ATTEMPT TO CLEAN THE ELEMENT BY BEATING OR RAPPING IT. The main element, protected by steel lines, is strong enough to take normal handling, but it will not stand an unlimited amount of abuse. DO NOT USE GASOLINE OR OTHER VOLATILE SOLVENTS TO CLEAN ELEMENTS. The element or the engine could be damaged.Cleaning with Donaldson D-1400 and Water
CLEANING WITH COMPRESSED AIR CAN CAUSE PERSONAL INJURIES. WEAR EYE PROTECTION, LONG SLEEVES AND GLOVES. USE ONLY 30 PSI OR LESS AIR PRESSURE.
1. If compressed air is available, remove the loose dust by blowing from the inside of the element. Use less than 30 PSI, keep the nozzle at least one inch away from the element, and blow on the inside only. If compressed air is not available, run water through the element from the inside. Use a gentle water stream (less than 40 PSI). 2. Soak the element in a solution of water and D-1400 filter cleaning compound. Follow instructions on the package of D-1400.3. Gently swish the element around the solution to help loosen the dirt. 4. With a gentle stream of water (less than 40 PSI), rinse the entire element until the water comes through the element clear.5. Dry the element thoroughly before inspecting it. Mechanical dryers can be used, but heated air must be circulated and must be less than 160°F. DO NOT USE A LIGHT BULB TO DRY THE ELEMENT.Cleaning with Air Only
CLEANING WITH COMPRESSED AIR CAN CAUSE PERSONAL INJURIES. WEAR EYE PROTECTION, LONG SLEEVES AND GLOVES. USE ONLY 30 PSI OR LESS AIR PRESSURE.
1. Direct a jet of compressed air against the inside of the element. To prevent possible personal injury and damage to the filter medium, use less than