ENGINE AR-PRIMARY 3891315 - Caterpillar

9. Remove right hand door assembly (17) from right hand door assembly (18). 10. Remove bolt (20), the washer, and right hand door assembly (19) from the engine enclosure. 11. Remove four bolts (21), the washers, and plate (22) from the engine enclosure tube assembly.12. Remove step sheet assembly (23) from the engine enclosure tube assembly. 13. Position a suitable lifting device on right hand door assembly (24) as shown. Secure the lifting device to a hoist. 14. Remove two bolts (25), the washers, and right hand door assembly (24) from rear frame assembly (26). The weight of right hand door assembly (24) is 34 Kg (75 lb). Repeat Steps 9, 10, 13 and 14 for the remaining left side. For the removal and installation of the fan, the air conditioning system does not need to be evacuated. The air conditioning condenser can be removed without disconnecting the hose assemblies. 15. Loosen, but do not remove two bolts (27) on each side of air conditioning condenser (29), that hold brackets (30) to the radiator guard and support.16. Using two people, remove four bolts (28) and the washers from each side of air conditioning condenser (29). Remove air conditioning condenser (29) from the radiator. Set air conditioning condenser (29) outside of rear frame assembly (26) as shown. Position wood blocks (not shown) under air conditioning condenser (29). 17. Remove four bolts (31), the washers, and angle assembly (32) from the radiator. 18. Remove bolt (35) and the washer from bracket (34) on each side of top fan guard assembly (36). Remove three bolts (33), the washers, and remove bracket assemblies (30) from each side of the radiator.19. Remove two bolts (37), the hard washers, and the two nuts from each side of top fan guard assembly (36).20. Remove top fan guard assembly (36) from bottom fan guard assembly (38). 21. Remove six bolts (39), the washers, and angle assembly (41) from radiator (40). 22. Remove bolt (45), and the washer from each side of tube assembly (42).23. Remove two bolts (43), and the washers from each side of tube assembly (42).24. Remove tube assembly (42) from radiator guard and support (44).
Care must be taken when removing the spider assembly. Avoid making contact with any of the radiator cores during the spider assembly removal. Contact made on the radiator cores with the spider assembly may cause component damage.
25. Position a suitable lifting device on spider assembly (46) as shown. Secure the lifting device to a hoist. Remove six bolts (47), the washers, and spider assembly (46) from the fan adapter. The weight of spider assembly (46) is 57 Kg (125 lb). The following steps are for the installation of the fan.26. Make sure all components of the fan are clean of dirt and foreign material prior to installation.27. Check all components for wear or damage and replace if necessary.
Care must be taken when installing the spider assembly. Avoid making contact with any of the radiator cores during the spider assembly