MAINTENANCE 19. Retighten the lower roller mounting bolts. Tool : 32 mm Torque: 750 N•m (75 kgf•m, 553 lbf•ft) 20. Retighten the shoe mounting bolts. M107-07-092 Tool : 32 mm Torque: 1400 N•m (140 kgf•m, 833 lbf•ft) 21. Retighten the track guard mounting bolts. M107-07-093 Tool : 32 mm Torque: 750 N•m (75 kgf•m, 553 lbf•ft) M107-07-094 22. Retighten front pin-retaining bolts and nuts. Tool : 27 mm Torque: 400 N•m (41 kgf•m, 295 lbf•ft) Tool : 30 mm Torque: 550 N•m (56 kgf•m, 406 lbf•ft) Tool : 32 mm Torque: 750 N•m (75 kgf•m, 553 lbf•ft) 23. Retighten counterweight mounting bolts. Tool : 55 mm Torque: 2840 N•m (290 kgf•m, 2095 lbf•ft) 7-100