INSTALLATION INSTRUCTIONS:
1. Install threshold(s), if used, and fit and hang door(s).
2. Check that device handing matches door handing.
3. Tape full size RHR or LHR lock stile case and hinge
stile case templates to inside face of door (Figure 1).
Be sure center line of device is 39-13/16” from
finished floor. Prepare inside face of door for device
per templates.
4. Prepare lock stile of door for mortise lock (see
mortise lock instructions 941019).
5. Prepare outside face of lock stile for trim (see trim
instructions). Line X-X on trim instructions corresponds
to line X-X on device template.
6. Prepare trim for installation (see trim instructions).
7. Install mortise lock (Figure 2).
8. For 1-3/4” thick doors, cut 3/8” off device lift finger.
9. Attach device cases to door (Figure 3).
10. Push down lock stile lever and check for full retraction
of latch bolt. Release and check for full extension (3/4”).
Adjust lift finger if necessary (Figure 4).
11. Measure dimension “X” (Figure 3) and cut crossbar
tube to dimension “X.” Cut end without hole.
12. Install crossbar tube and wedge assembly (see
instructions 941009) and test crossbar for free action.
13. Prepare frame for strike (Figure 5).
14. Install strike to frame with two #12-12 x 12-24 x 1”
combination screws.
Figure 2. Install Mortise Lock
1. Remove retaining screws, scalp plate, and insert.
Scalp plate
Retaining
screws
Insert
2. For TP and K trims turn NL screw clockwise all the way in.
3. Loosen top and bottom faceplate screws, pivot faceplate to
4. Install mortise lock into door with two #12-12 x 12-24
LHR shown
RHR opposite
C device
L
39-13/16”
to finished
2-3/4”
2-3/4”
backset
Parallel to door edge
C
L
lock
stile
case
Parallel to door edge
C
L
hinge
stile
case
floor
Figure 1. Prepare Door
match door bevel, tighten top and bottom faceplate screws.
combination screws.
Faceplate
Faceplate
screw
NL screw
Bevel on
edge of
door
Faceplate
screw
#12-12 x 12-24 x 1” combination screws
Faceplate
Equal
}
angles
Sex bolts
880 trim
LHR shown
RHR opposite
Latch
bolt
Set
screw
To raise finger, tighten
set screw; to lower
finger, loosen set screw
Lift
finger
Figure 4. Adjust Lift Finger
5. Rotate latch bolt so flat side faces exit direction.
6. Replace insert, scalp plate, and scalp plate
retaining screws.
Flat side of
latch bolt
Exit direction
Top view
DESCRIPTION:
8875 and 8875-F MORTISE LOCK DEVICES
Mounting Fasteners
Surface #10-12 x 10-24 x 2”
880 trim #10-24 machine screws
Sex bolts #10-24 machine screws
“X”
Figure 3. Install Device
15/32”
3/8”
4-1/8”
4-7/8”
2-1/16”
5/8”
31/32”
R 1/16”
2-1/16”
1-13/32”
3/16”
5/8”
1-1/4”
1/2”
3/32”
1/2”
C mortise
L
Figure 5. Prepare Frame for Strike
DIRECTION NUMBER:
911179_00(12) 01-01-03
combination screws
(supplied with device)
911179-00
1-1/8”
“B”
C door and strike
L
575 and 575-2 strikes
LHR shown
RHR opposite
Door thickness
11/32”
C strike
L
C device
L
lock
2-7/16”
576A and 576B strikes
3/32”
3/4”
C strike
C device
L
2-7/16”
4-7/8”
L
SHEET#:
Strike
575
575-2
RHR opposite
3-3/8”
1-17/32”
C door and
L
strike
12/24” tap
2-1/16”
5/8”
1-1/4”
1 of 1Copyright © 2003 Ingersoll-Rand. All rights reserved.
Dim. “B”
1-25/32”
1-1/2”
LHR shown
1-13/16”
2 holes
4-1/8”
3-3/8”
3/8”
3/4”
DATE:
X
C device
L
11/16”
1-3/8”
Surface application (standard)
#25 drill and #10-24 tap, metal door;
pilot hole for #10 wood screw, wood door;
4 places
880 series trim or sex bolts
7/32” drill inside and
13/32” drill outside, metal door;
13/32” drill thru, wood door;
4 places
CUT HERE
2-3/4”
5/32”
6-3/4”
Mortise lock
and edge of door
C
L
3-5/8”
6-3/4”
CUT HERE
2-3/4”
X
C device
L
11/16”
1-3/8”
Surface application (standard)
#25 drill and #10-24 tap, metal door;
pilot hole for #10 wood screw, wood door;
4 places
880 series trim or sex bolts
7/32” drill inside and
13/32” drill outside, metal door;
13/32” drill thru, wood door;
4 places
Measure 2-3/4”
to hinge stile edge
CUT HERECUT HERE
CUT HERE
Hinge
stile
case
RHR LHR
C
L
Measure 2-3/4”
to hinge stile edge
of RHR door
of LHR door
9/16”
1-1/8”
2-1/4”
39-13/16”
to finished
floor
1/4” R
C device
L
1-1/4”
1-3/8”
1-1/2”
3-3/8”
C mortise lock
L
7-1/4”
L
L
Fold here for 1-3/4” RHR door;
for thicker door, cut on this line and
locate C of lock on C of edge of door
locate C of lock on C of edge of door
for thicker door, cut on this line and
Fold here for 1-3/4” LHR door;
1-3/8”
L
3-3/8”
L
1-1/2”
1-1/4”
C device
L
39-13/16”
to finished
floor
1/4” R
39-13/16”
to finished
floor
Surface application (standard)
#25 drill and #10-24 tap, metal door;
pilot hole for #10 wood screw, wood door;
4 places
C hinge stile case
L
C device
L
4-1/2”
3/8”
RHR
X
#16 drill and #12-24 tap for
metal door; pilot hole for #12
combination screw, wood
door; 2 places
Sex bolts
7/32” drill inside and
13/32” drill outside, metal door;
13/32” drill thru, wood door;
4 places
X
LHR