PISTON-YM 3089908 - Caterpillar

Illustration 1 g00827527
Note: Low Ground Pressure (LGP) machines have an inner hub that is wider than the hub on the standard machines. Both machines have the same specifications and the same installation procedures. (1) 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. (4) Torque for bolts ... 120 20 N m (90 15 lb ft)Note: Be sure that there is metal to metal contact between retainer (3) and spindle (2) before the bolts are tightened. (5) Torque for plug ... 105 10 N m (77 7 lb ft) (6) Put SAE 30W lubricant on the threads of the sprocket bolts. First, tighten the sprocket bolts to the following torque. ... 175 40 N m (130 30 lb ft)Then, tighten the sprocket bolts by an additional 1/3 turn.Minimum torque after the additional 1/3 turn ... 380 N m (280 lb ft)