HYDRAULICS 1.73 FAN DRIVE BEARINGS NOTE : From Machines S/No.51200472 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. Refer to Page 1.72 and do steps 4 and 6, to remove the fan guard and loosen and remove the V-belt (7). 6. Remove the eight nuts and washers that secure the fan carrier (8) to the radiator. Remove the fan carrier (8), with the fan (14) and pulley (6) attached.assembly attached. 7.
Remove the four securing bolts (16) and washers (15) that secure the fan (14) to the hub (13). Remove the fan (14). 8. Remove the setscrew (4) and washer (5) securing the pulley (6) to the hub (13). Using a suitable puller, remove the pulley (6) from the hub (13). 9. Remove the woodruff key (12) from the hub shaft and remove the hub (13) from hub carrier. 11. Remove circlip (9) then push out bearing (10). Note position of spacer (11) then, using a small punch, remove bearing (10) from carrier. Installation 1. Installation is the reverse of the above procedure. 2. Make sure the woodruff key (12) is fitted to the hub shaft before fitting the pulley (6). 1. Nut 9. Circlip 2. Washer 10.
Brearing 3. Guard 11. Spacer 4. Bolt 12. Woodruff key 5. Washer 13. Hub 6. Pulley 14. Fan 7. V-belt 15. Washer 8. Fan carrier 16. Bolt 3. Make sure the spacer (11) is fitted between the bearings (10) before fitting the bearings. 4. Tension the V-belt (7) 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.