SPRING 7M6124 - Caterpillar

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Table 1
Specification for 257-6298 Service and Parking Brake Gp    
Item     Qty     Part     Specification Description    
1     55     4E-9311 Bolt     Torque to
500 50 N m (367 37 lb ft).    
2     8     5P-4088 Taperlock Stud     Torque to
100 15 N m (74 11 lb ft).    
3     8     9D-7989 Nut     Torque to
270 15 N m (199 11 lb ft).
Safety nuts are to be tightened one turn at a time in order to draw housing down evenly. After all nuts are bottomed, tighten to final torque in a Crisscross pattern.    
4     68     139-4774 Taperlock Stud     Torque to
260 25 N m (192 18 lb ft).    
5     46     9D-6093 Spring     Length under test force
90.5 mm (3.6 inch).
Test force
4235 254 N (952 57 lb).
Free length after test
116.5 mm (4.6 inch).    
6     42     9D-6135 Spring     Length under test force
90.5 mm (3.6 inch).
Test force
1523 44 N (342 10 lb).
Free length after test
115.49 mm (4.55 inch).    
7     2     6G-6500 Damper     Install one damper assembly with facing material towards end plate and damper assembly with facing material towards service piston.    
8     13     226-2826 Friction Disc     Oil friction discs at assembly with lubricant.    
9     44     3B-2968 Bolt     Torque to
500 50 N m (367 37lb ft).    
10     4     9D-9121 Spring     Length under test force
74.9 mm (2.9 inch)
Test force
890 27 N (200 6.1 lb)
Free length after test
91.14 mm (3.58 inch)    
11     12     9D-7989 Nut     Torque to
270 25 N m (199 18 lb ft)
Safety nuts are to be tightened one turn at a time in order to draw housing down evenly. After all nuts are bottomed, tighten to final torque in a Crisscross pattern.    
12     12     5D-4809 Taperlock Stud     Torque to
100 15 N m (74 11 lb ft)