Engine Rebuild Guide, Break-In and Tune-Up Check Air Intake System 1. Replace air cleaner primary filter element. Replace secondary element if primary element has holes in it. (See REPLACING AIR CLEANER FILTER ELEMENTS in operator’s manual.) 02 010 18 2. Check condition of air intake hose(s). Replace hoses that are cracked, split, or otherwise in poor condition. RG8717A –UN–12JUL99 3. Check hose clamps for tightness. Replace clamps that cannot be properly tightened. This will help prevent dust from entering the air intake system which could cause serious engine damage. Unloader Valve 4. If air cleaner has an automatic dust unloader valve (A), inspect valve for dust buildup or restrictions.
5. Check air intake restriction indicator gauge (B) (if equipped) to determine if air cleaner needs to be serviced. RG8719A –UN–12JUL99 A—Unloader Valve B—Restriction Indicator Gauge Restriction Indicator Gauge DPSG,OUO1004,920 –19–09JUL99–1/1 Check Exhaust System 1. Inspect exhaust system for leaks or restrictions. Check manifold for cracks. Repair or replace as necessary. 2. Check that turbocharger-to-exhaust elbow adapter clamps are securely tightened and do not leak. 3. Check exhaust stack for evidence of oil leakage past valve stem seals. Oil in exhaust stack may be caused by excessive valve stem-to-guide clearance or excessive light load engine idling.
CTM100 (06APR04) 02-010-18 P OWER T ECH 10.5 L & 12.5 L Diesel Engines RG,RG34710,1057 –19–23OCT97–1/1 040604 PN=66