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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.

2MM GAP

SIDE

EXTENSION

BRACKET

300 OR 400 MM

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PPA DZ HUB Specifications

General