521B and 522B Track Feller Bunchers Machine Systems Caterpillar


Swing Drive

Usage:

521B F7B


Illustration 1g02011097

Table 1
Specifications for 220-8620 Swing Drive Gp 
Item  Qty  Part  Specification Description 
227-6221 Breather As  Torque 45 ± 4.5 N·m (33 ± 3 lb ft)
114-1399 Gauge Pipe  Torque 60 ± 6 N·m (45 ± 4 lb ft)
16  8T-6385 Bolt  Torque 270 ± 40 N·m (200 ± 30 lb ft)
Apply Loctite High Flex GM to the flange surface of the cover and to the gear housing. 
6V-7238 Shutoff Valve  Torque 28 ± 3 N·m (21 ± 2 lb ft)
Torque at closing 3 ± 0.5 N·m (2 ± 0.4 lb ft)
Apply 5P-3931 Anti-Seize Compound to the surfaces in contact with 136-2904 Bearing and 136-2940 Bearing. 
16  112-3929 Bolt  Installation torque 900 ± 100 N·m (664 ± 74 lb ft)
After installation, make stake marks near the opening of each pin hole. Refer to Detail A. Location of the stake marks:
A 2.25 ± .75 mm (.09 ± .03 inch).
B 2.25 ± .75 mm (.09 ± .03 inch).
C 2.25 ± .75 mm (.09 ± .03 inch).
D 2.25 ± .75 mm (.09 ± .03 inch)
10  Lubricate the sealing lip lightly with the lubricant that is being sealed. When you insert the 135-9044 Seal into the cage, lubricate the outside of the seal with grease. 

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