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01–03 Engine Mount Inspection (Noise Emission NOTE: At engine overhaul, and whenever the and upper isolators (see , Refs. 1 and 6), and replace them if they are worn. See Group Drive Belt Tension Engine Component Belt Tension: lbf (kg) Caterpillar C10 (3176) Refrigerant Compressor 80 to 100 (36 to 45) Caterpillar 3406E Alternator and Refrigerant Compressor 40 to 50 (18 to 23), per belt Fan 80 to 100 (36 to 45) Cummins M11 Alternator 90 to 120 (41 to 55) Fan 155 to 165 (70 to 75) Refrigerant Compressor 80 to 100 (36 to 45) Cummins N14 Alternator 40 to 50 (18 to 23), per belt Fan 80 to 120 (36 to 55) Refrigerant Compressor 80 to 100 (36 to 45) Detroit Diesel Series 60 Alternator and Refrigerant Compressor 80 to 100 (36 to 45), Power Band Fan 60 to 80 (27 to 36) Table 1, Drive Belt Tension Periodically inspect the rubber isolators for cracks, 01–04 Engine-Support Fasteners Check (Noise Front and rear engine supports for vehicles built from Check the rear engine-support fasteners (see Ref. 4) for tightness. Tighten the 3/4-inch fasteners f220047a 1 2 3 4 5 6 2 10/05/94 1. Lower Isolator 2. Engine-Support 3. 3/4–10 Capscrew 4. 3/4–10 Hexnut 5. Engine Mount 6. Upper Isolator Fig. 3, Rear Engine Mount Isolators and Fasteners Engine 01 01/3 |