Detex VRA-143-D - Manual (Page 2)

UPPER AND LOWER
STRIKES
Follow the instructions on the strike
templates and mark the hole centers
as shown. Produce a hole in the door
frame and in the floor or threshold,
about 3/4" deep. Drill the strike
mounting holes.
Install the upper strike plate making
sure that the raised flange is toward
the door as shown in figure5. Install
the lower strike plate.
BASE ASSEMBLY
Refer to figure 7 and install the base
assembly on the door, oriented as
shown, using four pan-head screws,
1" long. If a type-C installation,
install the closed-back strike at this
time. (The strike fits under the base
assembly).
LOWER ROD ASSEMBLY
Refer to figure 7 and assemble the
lower rod (39"), jam nut, lower
bolt, bolt housing, (open end down),
and rod guide. The lower bolt will
be adjusted later.
UPPER ROD ASSEMBLY
Refer to figure 7 and assemble the
upper rod , bolt housing, (open end
up), upper bolt and rod guide. The
upper bolt will be adjusted later.
DETEX INS143 PAGE 2
TEMPLATES
Templates provided with these
instructions include hole center
locations for the three types of instal-
lations described on page 1.
For a type B installation, use tem-
plates A, B and E.
For a type C installation, use tem-
plates A, B and F.
For a type D installation, use tem-
plates C, D and E
Select the required templates and
tape them to the door. Make sure
that the door is firmly butted against
the stop and mark the required hole
centers.
SCREWS AND DRILL SIZES
Several types of screws are supplied
with this product. Some are for
temporary use during the installa-
tion and are to be replaced with the
permanent "one-way" screws after
all adjustments have been completed
as explained later.
#10 type AB thread-forming screws
are supplied with the VRA for use
in non-reinforced door areas. The
recommended drill size for these
screws is #24(0.152). For reinforced
doors, #10-24 machine screws are
supplied and the recommended tap-
drill size is #25(0.150).
OUTSIDE KEY CONTROL
(OKC)
Instructions for installing the rim
cylinder are included in the instruc-
tions provided with the exit control
lock.
Place the handle on the square shaft
in the base assembly and turn it to
verify that there is no binding
Position the rod guide about midway
between the base assembly and the
lower bolt housing and mark the hole
centers. Drill the holes and fasten
the rod guide to the door with
#10 x 3/4" oval-head screws.
Verify that there is no binding when
the handle is turned.
INSTALL UPPER ROD
Insert the lower end of the rod into
the hole in the top of the base assem-
bly. Slip a spring and washer onto
the lower end of the rod and insert
a cotter pin in the second hole from
the bottom of the rod. Attach the
rod to the link in the base assembly
with a knurled pin.
Fasten the upper bolt housing to the
door with two Phillips- head scews.
One-way screws will be added after
adjustment of the upper bolt.
Position the rod guide about midway
between the top of the base assem-
bly and the underside of the bolt
housing. Mark the hole centers and
drill the holes for the #10 screws.
Install the rod guide with #10 x 3/4"
oval-head screws. Verify that there
is no binding
INSTALL LOWER ROD
Install the lower rod assembly as
follows. Insert the upper end of the
rod through the hole in the bottom of
the base assembly and lower it until
the lower bolt enters the lower strike
plate. Insert a cotter pin in the bottom
hole in the rod. Slip a spring then
a washer onto the upper end of the
rod and insert the end of the rod in
the link in the base assembly. Fasten
the rod to the link with a knurled
head pin.
Fasten the lower bolt housing to
the door using two Phillips-head
screws. One-way screws will be add-
ed after adjustment of the bolt.
BOLT ADJUSTMENT
To make the required adjustments,
temporarily install the VRA handle
on the square shaft in the base as-
sembly. Turn the handle counter-
clockwise to the locked position
and check the top and bottom bolt
positions. The upper bolt must be
adjusted so that the flat on the top
side is butted to the upper strike plate
as shown in figure 5. Adjust the bolt
by screwing or unscrewing the rod.
If the rod is too long, refer to figure
7 and cut the rod as shown.