24. SERVICE PROCEDURE 24.7.5 CLEAN DIFFERENTIAL CASE BREATHER Remove the mud and dirt from around the breather, then re- move the breather and wash out the dirt from inside with clean diesel oil or flushing oil. AE134580 24.7.6 CLEAN ENGINE BREATHER ELEMENT 1. Wipe off the dirt from around the breather. 2. Remove the breather from the cylinder block. 3. Rinse the whole breather in diesel oil or flushing oil. 4. After washing, pass diesel oil through in the direction marked by the arrow A . AE134590 5. Dry with compressed air, then coat the O-ring with engine oil, and install. Check the element and O-ring, and replace them with new parts if necessary. 6.
Check the breather hose, and if any deteriorated oil is stuck to the inside, replace the hose with a new hose. AE134600 24.7.7 REPLACE PLUG WITH STRAINER FROM MAKE-UP TANK OF REAR BRAKE CHAMBER 1. Change the oil in the rear brake cooling oil tank, and at the same time remove the hose and tee installed to the top of the make- up tank, then remove plug 1 and replace it with a new plug. 2. Install the hose and tee to the top of the plug. Replace this part every 2000 hours or every year, whichever comes sooner. When replacing the plug, change the oil in the tank, then add the same type of oil as the brake cooling oil to fill to the top of the tank. AE134610 3-73