Front Safety Door

When the Front Safety Door knob is in the ON position ( │ ) , the Front Safety Door will open ( be raised to its upper bound ) . When the Front Safety Door knob is in the OFF position ( ○ ), the Front Safety Door will close ( go down to its lower bound 0° ) . The slide can only be operated in INCHING mode if the Front Safety Door is open.

Rear Safety Door

When the Rear Safety Door knob is in the ON position ( │ ) , the Rear Safety Door will open ( be raised to its upper bound ) . When the Rear Safety Door knob is in the OFF position ( ○ ) , the Rear Safety Door will close ( go down to its lower bound 0° ) . The slide only can be operated in INCHING mode if the Back Safety Door is open.