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dormakaba 8900 PT/PTH Installation Instructions

1 Technical specifications

1.1

Overview

Caution: sex nuts are required for attachment

of components to unreinforced doors and to

wood or plastic faced composite type fire doors,

unless an alternative method is identified in the

individual door manufacturer's listings.

Arrow on backplate points upward.

1.2 Tools recommended

Table 1

Drill bits:

Metal: 7/32" drill bit; 1/4-20

tap

Wood: 3/8" and 5/32" bit

1/2" box wrench

1.3 Handing the door

Fig.1

Left hand door (LH)

Hinge

8900 Surface Applied Closers

#3 Phillips screwdriver

3/16" flat head screwdriver

5mm hex key

Interior side of door

Exterior side of door

08279731

Know the swing of the door which is

being installed prior to installation.

Verify closer spring size prior to

installation.

Make sure door efficiently operates prior

to installing closer.

Right hand door (RH)

Technical specifications

Hinge

09-2019