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Lock preparation 90 minute steel fire door – Therma-Tru SHOP 3 Door Preparation - Book Size User Manual

Page 22

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Door
Preparation

3.22

2014 (BOOK SIZE)

Shop 3

Lock Preparation

90 Minute Steel Fire Door

CAUTION:

Only shops licensed as fire door machiners may perform this lock preparation.

Flip door over.

Align drill with pilot hole

and complete boring.

Drill Crossbore When Door Machine Is Not Available

Bore through half of door thickness until pilot pierces other side.

CAUTION:

Do not bore completely through

to other side of door.