Dorma D860 Installation Instructions

INSTALLATION INSTRUCTIONS-D860, 861, 862, 863 & 880
Strike Reinforcer (Wood Frames)
Strike Box
Mark door
1 Place template on door and mark center for 2 1/8" hole at
desired backset.
2 Template should be placed on high edge of beveled door edge.
Bore two holes
1 Bore a 2 1/8" diameter hole. To avoid splintering a wood door,
bore the hole from both sides of door.
If there is an existing 1 1/2" diameter cross bore, there is no
Note
need to re- drill cross bore
drilled 4" deep to accommodate deadbolt.
2 Drill a 1" diameter hole from the edge of door that intersects the
2 1/8" hole.
3 Using the deadbolt faceplate as a guide, mortise the edge of
door to recess the faceplate.
2 1/8" diameter hole
Prepare door jamb
1 Locate exact center of bolt and mark center lines on jamb as
shown.
2 Mark drill points 5/16" above and below horizontal center line.
3 Bore two overlapping 7/8" holes, 1 1/8" deep.
4 Clean out holes for strike box and place strike box in hole.
5 Place strike over box and trace for cutout.
6 Chisel about 1/4" deep for flush fit of strike box, strike reinforcer
and strike.
Height line
Mounting Screws
Screws
Strike Plate
3" Wood Screws
High side of door bevel
. 1" diameter edge hole must be
1" diameter hole
Center punch
5/16"
5/16"
Clear out
Thumbturn Assembly
Deadbolt
Trim Ring
I/C Cylinder Housing
Install strike plate
1 Place strike reinforcer with screw holes toward doorstop.
2 Mark and drill two 3/16" holes for 3" wood screws.
3 Install strike reinforcer, strike box, and finish strike in the order
shown.
Install deadbolt assembly
1 Insert the deadbolt with slotted driver bar hole at the bottom of the
assembly.
2 Secure the deadbolt to the door with screws.
Security Shield
Security Insert
Cylinder Collar
Standard Cylinder Assembly
Jamb
Strike box
Strike reinforcer
Edge of door
Slotted driver bar hole
3" wood screws
Strike plate
Deadbolt