ABB HT570679 Operation Manual page 49

Operation Manual / 4 Product description / A150-M.. - A155-M..
2 Removing and Installing
Tightening pressure screws
Figure 13: Tightening pressure screws
Product
A150
A155
Table 4: Pressure screw tightening torques
1. Screw in pressure screws crosswise by hand until reaching the stop.
2. Tighten pressure screws crosswise to 50 % of the tightening torque specified in the table.
3. Tighten pressure screws crosswise to 100 % of the tightening torque specified in the table.
4. Work in a circle to tighten all pressure screws to 100 % of the tightening torque specified in
the table.
5. Tighten pressure screws to 100 % in 5 ... 7 rounds until the required residual tightening
angle of < 20° is achieved.
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Torque-controlled tightening
Fixing screw [mm]
M30
M36
HZTL4032_EN
Page 19 / 120
Tightening torques [Nm]
45
85
Revision F January 2017