dormakaba 8900 JT/JTH Installation Instructions
08280161
09-2019
8900 Surface Applied Closers
3
Technical specifications
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.
Maximum door opening degree is 180°.
Arrow on backplate points upward.
Hold open range is from 80° to 145° with
optional hold open kit.
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.
Drill bits:
#3 Phillips screwdriver
Metal: 7/32” drill bit; 1/4-20
tap
3/16” flat head screwdriver
Wood: 3/8” and 5/32” bit
5mm hex key
1/2” box wrench
1.2 Tools recommended
Table 1
1.3 Handing the door
Fig.1
Hinge
Hinge
Interior side of door
Left hand door (LH)
Right hand door (RH)
Exterior side of door
