Adjusting the toggle mechanism’s over-center distance
The proper adjustment of the toggle mechanism is critical for the safe operation of the bender. The principle of
the toggle mechanism is that when engaged the middle pin will be slightly below the outer pins when the bender
is under load. This creates an over-center condition thereby preventing the toggle from disengaging when in use.
The distance that the middle pin is adjusted below the outer pins when engaged determines how difficult it will
be to disengage the toggle mechanism after the bend is complete. The dimension of 2” at the top of the adjuster
bolt is the factory setting. This will position the middle pin .050” below the outer pins when fully engaged. If the
toggle is ever disassembled, upon reassembly it must be readjusted to these values on both sides.
A small gap must be present
when the toggle is fully engaged.
Typically around .015-.030”.
This allows the safety bar to be
disengaged easily.
2”
49.5mm
Outer toggle link pins
Middle toggle link pin
Toggle mechanism’s side view
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