TM 9-2320-209-34-2-1 2-9. MAIN BEARINGS REMOVAL AND REPLACEMENT. Refer to TM 9-2815-210-34 for procedures to remove and replace main bearings. 2-10. CRANKSHAFT FRONT OIL SEAL REMOVAL AND REPLACEMENT. TOOLS: No special tools required SUPPLIES: Crankshaft front oil seal (outer) Crankshaft front oil seal (inner) Lubricating oil, ICE, OE/HDO 10, MIL-L-2104 PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedures. (1) Remove radiator. Refer to TM 9-2320-209-20. (2) Remove fan. Refer to Engine Cooling Fan Removal and Replacement, TM 9-2320-209-20. (3) Remove fan drive belts. Refer to Fan Drive Belts Removal and Replace- ment, and Adjustment, TM 9-2320-209-20. (4) Remove tachometer drive adapter and cable. Refer to Tachometer Assembly Removal, Repair, and Replacement, TM 9-2320-209-20. (5) Remove air compressor drive belt. Refer to TM 9-2320-209-20. (6) Remove vibration damper and pulley assembly. Refer to para 2-8. b. Removal. 2-120