Chapter 2 Services materials
Standard parts specifications and general torque
To inform the customer about the standard parts specifications and corresponding maintenance tools.
According to the ISO standard thread depth to define the locking torque of the standard firmware. The locking torque of the special
components or assembly is described in the relevant sections of the manual. To tighten the multi-firmware assembly to the specified
torque in a crisscross and progressive manner avoid bend. Unless otherwise specified, the locking torque should be based on the
cleaning and drying threads, and the components should be kept at indoor temperature.
1, The national standard GB / T 5789-2000 for hexagonal flange bolts, standard parts specifications, maintenance tool specifications
and general torque as following table:
2, The national standard GB / T70.1-2000 for hexagon head bolts, standard parts specifications, maintenance tool specifications and
general torque as following table:
3. The national standard GB / T 6177.1-2000 for hexagonal flange nuts, GB / T6187.1 for hexagonal flange self-locking nuts,
standard parts specifications, maintenance tool specifications and general torque as following table:
4, The national standard GB / T70.2-2000 for hexagon flat round head bolts, standard parts specifications, maintenance tool
specifications and general torque as following table:
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