BRACKET 3960995 - Caterpillar

Illustration 19 g00964052
Remove four cotter pins (45) and two pins (46) in order to remove shackle (22) from chains (23) .
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Remove two cotter pins (47) and pin (48) in order to remove chains (23) from the chain anchor on boom head (4) .
Illustration 21 g00970307
Use a suitable driver and remove lip seal (49) and bearing (50). Remove the lip seal and the bearing from the opposite side.
Illustration 22 g00970319
Attach a suitable nylon lifting sling around the front of inner boom section (8) and to a suitable hoist. Use the hoist to slide the inner boom section out of outer boom section (12) until the inner boom section is approximately two-thirds of the way out of the outer boom section. Remove the nylon lifting sling. Refer to Table 3 for the approximate weight of the inner boom section.Note: Do not slide the inner boom section more than two-thirds of the way out of the outer boom section.
Table 3
Approximate Weight of the Inner Boom Section    
TH350B    
326 kg (718 lb)    
TH360B    
394 kg (868 lb)    
TH460B    
450 kg (992 lb)    
Illustration 23 g00970320
Attach two suitable nylon slings around inner boom section (8) and to a suitable hoist. Use the hoist and remove the inner boom section out of outer boom section (12). Refer to Table 3 for the approximate weight of the inner boom section.
Illustration 24 g00970322
Remove four bolts (51) and the washers in order to remove two wear pads (52) from the front of inner boom section (8) .
Illustration 25 g00970323
Remove two bolts (53), shaft (54) and roller (55) from the bracket at the rear of inner boom section (8) .
Illustration 26 g00970325
Use a suitable driver and remove two bearings (56) and two lip seals (57) out of roller (55) .
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At the front of outer boom section (12), remove two nuts (58) and the washer from shackle (59). Remove the shackle and chain (3) out of the outer boom section.
Illustration 28 g00973865
Remove two cotter pins (60) and pin (61) in order to remove shackle (59) from chain (3) .
Illustration 29 g00973866
Remove four bolts (62) and the washers in order to remove two wear pads (63) from outer boom section (12) .
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Use a suitable driver in order to remove lip seal (64) and bearing (65) from outer boom section (12). Remove the lip seal and bearing from the opposite side.Note: If outer boom section (12) needs to be lifted off the suitable stand, refer to Table 4 for the approximate weight of the outer boom section.
Table 4
Approximate Weight of the Outer Boom Section    
TH350B    
640 kg (1410 lb)    
TH360B    
723 kg (1593 lb)    
TH460B    
795 kg (1752 lb)