A-4: PRECAUTIONS WHEN ASSEMBLING, TIGHTENING TORQUE OF BOLTS, SCREWS AND TAPER SEAL HOLES Remove the various blind plugs and jigs used during transportation. Remove the blind jigs (flange, head, cap, O-ring) used for the work equipment piping and undercarriage piping, the blind plugs used for the lubrication piping, the jigs used to hold the cylinders, and the blind plugs used in the tap holes where parts have been removed for transportation. Be careful not to damage these parts, and keep them in a safe place so that they can be used for future transportation.
For bolts where the tightening torque is not separately specified in the maintenance standards, use the tightening torques given in the table below. 1. Tightening torques for bolts 1) Use the figures in Table 1 when using an impact wrench or spanner. The tightening torque for bolts is basically that given in Table 1, so for bolts which use this torque, no separate instruction is given. Table 1 Unit: kgm S43C.
SCM 3H, equivalent, or higher 6 0.9 - 1.5 1.2 Range Target 8 1.5- 3.5 2.5 10 3.5- 7.5 5.5 12 5.5 - 12.5 9.0 14 8.5- 20.0 14.0 18 20.5 - 43.5 32.0 16 15.0- 31.5 23.5 20 32.5 - 62.0 47.0 22 18.0 - 84.5 66.5 24 60.0 - 105 82.5 27 90.0 - 150 120 30 115 -195 155 33 150 -250 200 36 190 -310 250 39 230 -370 300 26