BOLT 2255502 - Caterpillar

Procedure to Tighten Bolts for Upper Hitch: 1. Tighten two bolts (1) (180° apart) to a torque of ... 100 lb. ft.(135 N m)2. Tighten the other two bolts the same amount.3. Tighten the bolts again to a torque of ... 150 20 lb. ft.(205 25 N m) Adjustment of Bearings in Upper Hitch: 1. Use no shims under the bearing cap. Install four bolts (2) equally spaced. Tighten opposite bolts to a torque of ... 90 lb. ft.(120 N m)2. Tighten opposite bolts again to a torque of ... 130 5 lb. ft.(177 7 N m)3. Make sure that the lower cap is flush with the frame.4. Measure the clearance between the upper cap and frame at each bolt.5. Install a shim pack equal to the minimum thickness measured.6. Install all bolts (2) and tighten to standard torque. Installation of Lower Plate: 1. Install lower plate with no shims. Install two bolts (3) 180° apart and tighten them to ... 175 10 lb. ft.(240 14 N m)2. Measure clearance (360° around) between plate and frame.3. Subtract .010 in. (0.25 mm) from the minimum clearance measured. This is the thickness of shims to be used between the plate and frame.4. Install the shims and tighten bolts (3) and (4) to standard torque.(5) Torque for engine mounting bolts ... 325 25 lb. ft.(440 35 N m)