5 - ADJUSTMENTS AND SETTING-UP BOSS 332/545/552 HD
EN
5 - Pag. 33 / 34
Microswitches S90 and S91
• Manually rotate shaft "A" up to a distance of 10° approx. from the collet opening, then
rotate the cam of "S90" microswitch until wheel "B" is released.
• Turn shaft "A" until the collet opens.
• Turn the "S91" microswitch cam to release the wheel.
• Rotate shaft "A" until the collet closes.
• Turn the cam to lift the "S91" microswitch wheel.
• Rotate shaft "A" of 10° approx., then lift the "S90" microswitch wheel.
INFORMATION:
"S90" and "S91" microswitch wheels
must lower when the headstock is in a
forward position and lift when the
headstock is backwards, in any case
before the following feeding.
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