COVER 2577962 - Caterpillar

(1) Torque for 24 bolts ... 270 40 N m (200 30 lb ft)(2) Maximum amount of torque required to turn gear must not exceed ... 2.26 N m (20.000 lb in)Maximum amount of end play must not exceed ... 0.5 mm (.20 in) Shims are not required. If the above values are not obtained, check for excessive component wear or interference.(3) Torque for bolt ... 270 40 N m (200 30 lb ft)(4) Torque for sprocket bolts: Put 5P3931 Anti-Seize Compound on the face and threads and tighten the bolts to ... 175 40 N m (130 30 lb ft)Then tighten the bolts an additional 120 degrees turn with a minimum torque after turn of ... 380 N m (280 lb ft)(5) Torque for 32 bolts ... 270 40 N m (200 30 lb ft)(8) 7P7062 Shim thickness (one) ... 1.00 0.08 mm (.039 .003 in)7P9781 Shim Pack thickness (seven) ... 0.91 mm (.036 in)One shim thickness ... 0.13 mm (.005 in)(9) Torque for 12 bolts ... 135 20 N m (100 15 lb ft)(10) Torque for six bolts ... 55 10 N m (40 7 lb ft)(12) Torque for 21 bolts ... 270 40 N m (200 30 lb ft)(13) Torque for nine bolts ... 475 60 N m (350 45 lb ft) Lubricate all seals and bearings before assembly.Bearing Adjustment Procedure
1. Clean all parts and coat all bearings with 30W oil.2. Make sure all parts, including hub (6), are installed correctly.3. Install retainer plate (7) without shims (8), using three bolts (9) evenly spaced.4. Turn sprocket hub (6) by hand while tightening three bolts (9) to a torque of 38 1 N m (337 9 lb in).5. Separately loosen bolts (9). Tighten bolts (9) until contact (touches) with retainer plate (7) is made.6. Tighten three bolts (9) to a torque of 12 2 N m (108 18 lb in).7. Measure gap (A) between retainer plate (7) and spindle (11) at two locations as close to bolts (9) as possible.8. Select a thickness of shims (8) equal to the average gap (A) +0.00 -0.10 mm (+.000 - .004 in).9. Install shims (8), retainer plate (7) and 12 bolts (9).10. Tighten bolts (9) to a first torque of 10 1 N m (90 9 lb in).11. Make sure bolts (9) are correctly tightened to the first torque. Tighten bolts (9) to a second torque of 50 5 N m (37 4 lb ft).12. Make sure bolts (9) are correctly tightened to the second torque. Tightened bolts (9) to a final torque of 135 15 N m (100 11 lb ft). Replace bolts (9) each time the final drive is disassembled.