SARGENT NB-MD8400 Series Narrow Style Concealed Vertical Rod User Manual

SARGENT Safety

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Oval head
screw
#8-32 x 5/16"

End cap

Round head
screw
#10-32 x 3/4"

Mounting plate

Rail assembly

17)

Before closing door, check the following:
a) Push rail in to retract bolts
b) Bolts stay retracted (hold back)
c) Bolts release when door closes. Button inside top of door hits frame
d) Bolt engagement with strike 1/4"- 5/16"
e) Adjust bolts per steps 7A & 7B)

18)

For AD-8400: Attach 640 strike using instruction sheet A8037 supplied with strike pack.

19)

For MD-8400: Attach 650 top strike to frame with two #10-24 x 1/2" flat head screws &
650 bottom strike with anchors supplied and two #10 x 1-1/4 flat head wood screws.
(See chart on left)

20)

For 12-MD-8400: Attach 650 top strike to frame with two #10-24 x 1/2" flat head screws
& 606 bottom strikes with anchors supplied and two 1/4-20 x 2” flat head screws. (See
chart on left)

21)

Position cover (L) on chassis (C) and secure with (2) screws (BB)

22)

Attach end cap (K) to mounting plate (J) with (2) screws (BB)

23)

Secure rail assembly (H) to chassis (C) and cover (L) with (2) screws (AA)

Instructions for Installing AD-8400, MD-8400 & 12-MD-8400
Series Concealed Vertical Rod Exit Device

Verify that the correct exit device is being installed on the correct door. Function, finish and
size should all be verified.

Note: Before removing door from hinges, determine the gap

between top of door and frame. Determine smallest gap between bottom of door and
high point of floor or threshold as door swings.
This information is needed for step #7.
Remove door from the frame.

1) Drill, tap & c’sink the door per template, except

for the (2) #10-24 (4A) on the hinge side.

2)

Screw top bolt & rod assembly (A) and bottom bolt & rod
assembly (D) into inner chassis (B).

3)

Slide complete assembly into top of door.

4)

Attach inner chassis (B) to door with screw (EE) using
hole (3A).

Note: If 700 Series ET Control is being used, it must be
installed at this point, prior to step 5. See appropriate
instructions.

5)

Position chassis (C) over fillister head screw (EE) and attach
to inner chassis (B) using hole (5A) with washer (JJ) &
screw (HH). Do not tighten yet.

6)

Secure top of chassis (C) to door with screw (FF) using
tapped hole (2A). Do not tighten yet. Use chassis (C) to
retract top bolt & rod assy (A) & bottom bolt & rod assy (D)
to adjust bolt projection.

Note: Rods must be retracted while adjusting bolt
projection. Use chassis (C) to retract top bolt & rod assy (A)
& bottom bolt & rod assy (D)

8)

Slide rod silencer (G) over top bolt (F) onto rod, followed by top
chassis (E). Secure top chassis (E) to door with (2) screws (DD)
using holes (1A).

9A)

For AD-8400 bottom bolt: Install bottom plate (N) over bottom bolt (M)
and secure with (2) screws (DD) using holes (6A).

9B)

For MD-8400 & 12-MD-8400: Install bottom plate (O) over bottom bolt
(M) and secure with (2) screws (GG) using tapped holes (7A).

10)

Install door into the frame using hinges

11)

Slide rail assembly (H) onto chassis (C)

12)

Align holes for screws (AA)

13)

Level rail

14)

Locate & mark holes for mounting plate (J) on hinge side.
Drill & tap (2) holes (4A).

15)

Attach mounting plate (J) and secure rail assembly (H) to door
with (2) screws (CC).

16)

Tighten screws (HH) & (FF) to secure chassis (C) to door

OUTSIDE

INSIDE

SCREWS USED FOR AD-8400, MD-8400 AND 12-MD-8400 EXIT DEVICE INSTALLATION

STRIKE PACK FOR AD-8400

STRIKE PACK FOR MD-8400

STRIKE PACK FOR 12-MD-8400

640 TOP AND BOTTOM STRIKE

#10 X 1/2"
PHILLIPS FLAT HEAD
MACHINE SCREW
(4 IN PACK FOR TOP
AND BOTTOM STRIKE)

LEFT HAND

REVERSE

BEVEL

RIGHT HAND

REVERSE

BEVEL

THIS EXIT DEVICE IS HANDED

CHECK HAND OF DEVICE AGAINST APPLICATION

FINISHED FLOOR

OF CHASSIS

1/4"

5/8" GAP

36-3/4"
UNLESS
OTHERWISE
SPECIFIED

41"

STD.
HGT.

7-5/16"

4-1/2"

7/32" DIA
C'SINK FOR
#10 SCREW

DRILL AND TAP
for 1/4-20 TH'D

For AD-8400 Bottom Bolt
Install bottom plate (N) over
the bottom bolt (M) and
secure with two #10-24 x 3/8"
oval head screws (DD) using
holes (6A)

For MD-8400 & 12-MD-8400
Bottom Bolt
Install bottom plate (O) over
the bottom bolt (M) and secure
with two 1/4-20 x 1/2" flat
head screws (GG) using
tapped holes (7A)

Door prep shown is
the same for both the
MD-8400, 12-MD-8400
and AD-8400 Series
exit devices, except for
attaching the bottom
plate or bracket.
12- and MD- is shown
separately below.

Note: If 100 series
auxiliary control is
being used, door must
be prepped for Aux
Control prior to
installing device on to
the door. Aux Control
can be installed after
exit device is installed.
See appropriate
instructions.

Bottom

bolt

Bottom
Plate

#10-24 x 3/8"
Oval Head Screws

Bottom
Plate

1/4-20 x 1/2" flat
head screw

4A

1A

BB

CC

H

K

J

N

DD

M

O

GG

AA

BB

CC

DD

EE

FF

HH

JJ

2A

3A

5A

DRILL AND CUTOUT
THIS SIDE OF DOOR
ONLY

7/32" DIA.

Bottom

bolt

M

AD-8400 Only
DRILL &
C’SINK
FOR #10
SCREWS
2 PLACES

POSITION OF
MOUNTING SCREW
HOLES ARE IDENTICAL
FOR EITHER HAND

1/4"

5/8"

1-1/4"

6A

5/8"

2-3/4"

3/8"

1/2

7A

#1/4-20 Tapped holes (2 PLACES)

View of door bottom for

MD-8400 & 12-MD-8400

GG

7A)

Adjusting the top bolt & rod assembly

1) 1/8" gap or less between door top and

frame. Rotate bolt to make even with
top of the door

2) 1/8"gap or greater. Bolt to extend above

door equal to gap minus 1/8"

7B)

Adjusting the bottom bolt & rod assembly

1) 1/8"gap or less between door bottom &

high point. Rotate bolt to make even
with bottom of door

2) 1/8"gap or greater. Bolt to extend

below door equal to gap minus 1/8"

Information for Cutting Rails

Rail Sizes

Door Widths

Max

Min

E

32"

24"

F

36"

33"

J

42"

37"

G

48"

43"

For additional information,

contact SARGENT at

1-800-727-5477

A6697L

5/15/09

HINGE STILE

INSIDE SURFACE OF LHRB DOOR SHOWN

(2) 7/32" DIA & C'SINK

POSITION OF MOUNTING SCREW
HOLES ARE IDENTICAL FOR
EITHER HAND.

DRILL AND TAP HINGE STILE FOR
#10-24 SCREW. USE MOUNTING
PLATE TO LOCATE HOLES.

7/8"

Round
head
screw
1/4-20 x 1/2"

Inner
chassis

Chassis

Top bolt & rod
assembly

#10-24 x 1/2"
Phillips flat head
machine screws

A

EE

B

C

FF

HH

D

Bottom bolt & rod
assembly

Bottom bolt

Inner chassis

Chassis

Top
chassis

Oval head
screw
#10-24 x 3/8"

Oval head
screw
#8-32 x 5/16"

Silencer

Cover

Top bolt

#8-32 x 3/8" Truss
Head Screws

E

DD

F

G

B

C

AA

L

BB

M

3/4"

3-11/16"

1-1/4"

7/8"

Copyright © 2009, Sargent Manufacturing Company, an ASSA ABLOY Group company. All rights reserved.

Reproduction in whole or in part without the express written permission of Sargent Manufacturing Company is prohibited.

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