Technical training
Basic Technical Training Standard / V9 2024-06-24
2) 2-stage: using hydraulic tensioning tools, tension all of the nuts to the % of the final tension value specified in table 2.1. Mark the nut and bolt according to the procedure described in section 8 of this manual. Always tension and mark before going to next bolt/nut!
2-stage tightening specifications
Bolt
Stage 1
Stage 2
100 % of the given tension setting set by the scenario 100 % of the given tension setting set by the scenario
100 % of the given tension setting set by the scenario 100 % of the given tension setting set by the scenario
1
2
Table 2.1: 2-stage tightening specifications
The instructor shall explain the differences between and reasons for 1-stage and 2-stage tensioning and clarify that work instructions will always specify which type of tensioning is required.
Note
Safety: Always use appropriate PPE and be aware of line of fire when tensioning
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