MAINTENANCE PROCEDURE MAINTENANCE CHECK AND TIGHTEN TRACK SHOE BOLTS 4 (Machine equipped with steel shoes, road liners) If the machine is used with track shoe bolts (1) loose, they will break, so tighten any loose bolts immediately. Tightening 1. First, tighten to the initial tightening torque of 196 ± 19.6 N·m (20 ± 2 kgf·m), then check that the nut and shoe are in tight contact with the link mating face. 2. After checking, tighten each shoe by the additional tightening angle. Additional tightening angle 90° ± 10° 120° ± 10° 50° ± 5° Order for Tightening Tighten the bolts in the order shown in the diagram on the right.
After tightening, check that the nut and shoe are in close con- tact with the link mating surface. 4-28 Type of shoe Initial tightening torque N·m (kgf·m) Triple shoe Flat shoe 196 ± 20 (20 ± 2) Swamp shoe 196 ± 20 (20 ± 2) Road liner 147 ± 10 (15 ± 1)