Cookson MGHL Series, Installation Instructions And Operation Manual

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MGRL/MGHL SERIES
04/08
5
6. When the operator is mounted on the bracket, be sure the door driven sprocket is properly
aligned with the operator drive sprocket before securing to the shaft. The clearance (B) must be
the same as the height (A).
7. The shelf or bracket must provide adequate support for the operator. Prevent play between
operator and door shaft. Permit operator to be fastened securely and with the drive shaft
parallel to the door shaft. It may be necessary to field brace the operator/bracket.