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IM_SWi_EX_Rev14
Ensure the full width of the selected Safety Block step is
fully inserted before gradually retracting the tool until the
flange load has been applied to the Safety Block.
Figure 19:
The wedges can then be retracted fully and inserted
again, using the next step. In this way the flange joint
can be iteratively opened further until the required
spread is reached.
5.3 Flange Work
Do not rely upon hydraulic systems for
supporting the access gap during flange work. Do not
allow fingers, hands or other body parts into the space
created between the flanges.
5.4 Flange Closure
Allow the flanges to return to their closed position
by gradually retracting the tool. Consult the relevant
section of the manual for tool-specific instructions
on how to retract each tool. Before the tool has fully
retracted, insert the Safety Blocks into the flange joint.
Ensure the full breadth of the selected Safety Block step
is fully inserted, before gradually retracting the tool until
the flange load has been applied to them.
Figure 20:
To use the next smallest step, actuate the wedges to
around 75% prior to inserting back into the joint. Place
the tool in the gap and actuate enough to relieve the
load on the Safety Blocks. In this way the flange joint
can be progressively closed.
WARNING
As the flange approaches its fully closed position,
support the tool to avoid it dropping out of the joint.
Ensure that care is taken to prevent objects being
dropped. Dropped objects pose a risk of personal injury
or equipment damage.
5.5 Safety Blocks
Each tool is supplied with a set of 2 Safety Blocks.
The Safety Blocks have been designed with steps that
match the spreading distance of the SWi tools.
Figure 21:
5.6 Stepped Blocks
SWi12/14TMEX, SWi20/25TIEX, and SWi20/25TEEX
tools are supplied as standard with a pair of Stepped
Blocks These can be fixed to the jaws (individually or
in pairs) to increase the effective jaw thickness and
therefore the maximum spreading distance.
Use of the Stepped Blocks also enables the SWi tools to
be used in a joint with a larger access gap.
Wedge protrusion can be minimised by the use of
Stepped Blocks, reducing the penetration into the
joint. This enables, for example, spectacle blinds to be
changed.
Attach the stepped block to the tool using the M6
counter-sunk screw. Use the hex-key supplied to tighten
the screw into the threaded hole in the jaw of the tool.
Repeat for second Stepped Block to further increase
the effective jaw thickness if required.
Figure 22:
Summary of Contents for Equalizer SWi12/14TMEX
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