TRANSMISSION AR 0R4008 - Caterpillar

Illustration 1 g00405198
(1) Torque for 26 bolts ... 700 90 N m (520 65 lb ft) (2) Rubber toric seals must be clean and dry at assembly. All surfaces that contact the toric seals must be clean and dry at assembly. At assembly, apply a thin film of oil to the contacting surfaces of the metal seal. Seal rings must be assembled squarely with the bore. The toric ring must not bulge and the toric ring must not be twisted. Refer to 6Y-0300 Installation Instructions for Conventional Duo-Cone Seal Assemblies.Note: Low Ground Pressure (LGP) machines and XW machines have inner spindles (3) that are wider than the spindle on the standard machines. Both machines have the same specifications and the same installation procedures. (5) Torque for 10 bolts ... 135 20 N m (100 15 lb ft)Note: Be sure that there is metal to metal contact between retainer (4) and spindle (3) before the bolts are tightened. (6) Torque for 33 bolts ... 430 60 N m (320 45 lb ft) (7) Torque for three bolts ... 240 40 N m (180 30 lb ft) (8) Torque for plug ... 105 10 N m (75 5 lb ft) (9) Apply a film of SAE 30 oil to the threads of the sprocket bolts. First torque for 25 sprocket bolts ... 175 40 N m (130 30 lb ft)Tighten the sprocket bolts by an additional turn of 120 degrees. Minimum torque after the additional turn of 120 degrees ... 380 N m (280 lb ft) (10) Lubricate the seal surfaces with SAE 50 oil. Then install the seal with the side that is marked "this side in" toward the bottom of the counterbore in the spindle.