12 13
Step 6: With the operator manually released, place the rack bar on the pinion, alig-
ned to the gate.
It is necessary to leave an approximate 2-mm (~0.08 in) gap between the top of the
rack cog and the bottom of the pinion cog.
Step 7: Fasten the rack bar all along the gate leaf by welding it or by tightening
screws every 300 or 400 mm (~ 11.82 or 15.75 in).
Step 8: If the gate leaf is warped, provide holders to ensure the rack bar is aligned.
In cases where the rack bar is longer than the length of the gate, provide a Side
Extension Bracket, so that the pinion does not slip when the operator starts.
Step 9: After fastening the rack bar, fasten the operator permanently to the grou-
nd or concrete foundation, by strongly tightening the screws.
2MM GAP
SIDE
EXTENSION
BRACKET
300 OR 400 MM
300 OR 400 MM
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