HYDRAULICS 1.71 FAN DRIVE BEARINGS NOTE: Up to Machines S/No.51200471 only. Removal 1. Stop the engine and chock the machine, apply the parking brake . 2. Refer to page 1.1 and dump hydraulic pressure then disconnect the battery. 3. Open engine cover to gain access to fan motor. 4. Remove the fuel sediment bowl from its bracket. 5. Remove fan guard by unscrewing bolts (1) and lifting guard clear. 6. Loosen the V-belt pivot bolts (2) and link arm bolts (3). Remove V-belt (4) from pulley (5). 7. Loosen the mounting bolts (6) for the radiator and the bolts (7) beneath the fan motor and pull the radiator forwards slightly. 8.
Remove the securing bolts from the fan carrier (8) and remove fan (9) complete with carrier. 9. Remove the setscrew (10) and washers (11 & 12) securing pulley (5) to the hub (13). Using a suitable puller, remove the pulley from the hub. 10. Remove the woodruff key (14) from the hub shaft and remove the hub from hub carrier. 11. Remove circlip (15) then push out bearing (16). Note position of spacer (17) then, using a small punch, remove bearing (18) from carrier. Installation 1. Installation is the reverse of the above procedure. 1. Bolt 10 Setscrew 2. Bolt 11 Washer 3. Bolt 12 Washer 4. V-belt 13 Hub 5. Pulley 14 Woodruff key 6. Bolt 15 Circlip 7. Bolt 16 Bearing 8. Carrier 17 Spacer 9.
Fan 18 Bearing 2. Make sure the woodruff key is fitted to the hub shaft before fitting the pulley. 3. Make sure the spacer is fitted tbetween the bearings before fitting the bearings. 4. Tension the V-belt and check tension using a 'Fenner' or similar tension indicator. A force of 30 N at the mid-point on the belt should give a deflection of 8 mm.