154380-0521 ZEXEL 9 421 617 257 BOSCH CONTROL LEVER 9421617257 1543800521 1933499605

1. Loosen bolt (1).2. Loosen bolt (3).3. Push alternator (2) toward the engine to loosen the tension on the two alternator V-belts.4. Remove two alternator V-belts (4) from the alternator drive pulley and fan drive (6).5. Fasten a lifting strap and a hoist to fan drive (6). Remove four bolts (5) and the washers that hold the fan drive to the cylinder head assembly. Remove the fan drive. The weight of the fan drive is approximately 11 kg (25 lb). The following steps are for the installation of the fan drive.6. Be sure the mating surface on the cylinder head assembly and the mating surface on the fan drive support are thoroughly clean.7. Install the fan drive in the reverse order of removal.8. Adjust the tension of the alternator V-belts. See the topic "Alternator And Fan Drive Belts, Inspect/Adjust/Replace" in the 3114 & 3116 ATAAC Diesel Truck Engine Operation & Maintenance Manual, Form No. SEBU6723. Also, refer to the "Belt Tension Chart" in the 3114 & 3116 Diesel Truck Engines Specifications module, Form No. SENR6436.End By:a. install fan drive clutch assemblyDisassemble & Assemble Fan Drive
Start By:a. remove fan drive 1. Remove three bolts (6) and the washers. Access to bolts (6) can be made by rotating the fan pulley.2. Remove fan pulley assembly (2) from fan support (1).3. Remove two bolts (4) and thrust plate (5).4. Remove roller bearing assembly (8) and the bearing retainer from the fan pulley. Remove O-ring seal (7) from the bearing retainer. The following steps are for the assembly of the fan drive group.5. Be sure all parts of the fan drive group are thoroughly clean prior to assembly.6. Check the condition of O-ring seal (7) used in the bearing retainer. Also, check the condition of roller bearing assembly (8). If the components are damaged, use new parts for replacement.7. Install roller bearing assembly (8) in the bearing retainer. Be sure the lip seal in the roller bearing assembly is facing toward the bearing retainer.8. Install O-ring seal (7) in the bearing retainer. Put the bearing retainer and roller bearing assembly, as a unit, in position on pulley (2). Be sure the inner race of the roller bearing assembly in seated against the shoulder on the pulley.9. Install thrust plate (5) and two bolts (4).10. Put pulley assembly (2) in position in fan support (1). Install the three washers and bolts (6) that hold the unit together. Access to the mounting bolt holes can be made by rotating the fan pulley.11. Fill the bearing cavity in the fan drive with 30 g (1 oz) of 2S3230 Bearing Lubricant.End By:a. install fan drive