Technical training
Basic Technical Training Standard / V9 2024-06-24
a. 1-stage and2-stage tensioning and when they are used
b. 2-stage tensioning and why the bolt is tensioned twice at 100%
Present and explain how hydraulic tensioning tools work and how they relate to different tensioning tasks, including:
a.
Tensioners
b. Thread holding devices for threads on the opposite end to the tensioner
c.
The importance of thread pitch protrusion
d.
Spacers
Present the work instructions for the scenario and lead a discussion on adhering to bolt tensioning work instructions, company procedures, manuals and equipment care and maintenance, including:
a.
Safety consequences
b.
Quality consequences
c.
Equipment consequences
Ask participants involving questions about the importance of adhering to procedures and administrative tasks for bolt torquing, including maintenance requirements
Lead a discussion on the consequences of incorrect bolt tensioning and the parameters that influence bolt tensioning including:
a.
Tightening sequence
b.
Incorrect tool use
c.
Thread pitch
d.
Tensioner size
e.
Incorrect bolt/nut
f. Bolt conditions after storage (rust, dirt between threads) resulting in improper engagement and bolt unintendedly screwing through the connection
g. Ensure correct tool engagement with thread (as specified by the manual)
h.
The need for correct nut engagement
i.
Over/under tensioning
j.
Tool maintenance
Global Wind Organisation / www.globalwindsafety.org
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