INSTALLATION INSTRUCTIONS
This sheet covers 3 installation options; select appropriate installation.
Diagram measurements are not to scale.
Option A –
Regular Arm Installation
SPEED ADJUSTING VALVES
MAIN ARM
DOOR CLOSER
FOREARM
(Right Hand Door)
Option A instructions: 1
(2) locations on door frame to mount arm shoe.
3.
1/4-20 machine screws.
Install adjustable forearm/arm shoe to frame using screws (a) or (b).
VALVES MUST BE POSITIONED TOWARD HINGE SIDE.
6.
Adjust length of forearm so that forearm is perpendicular to frame when assembled to preloaded main arm. S ecure forearm to main arm with screw/washer (f).
7.
Adjust door's closing speed and power, see page 4 for reference.
Option B –
Top Jamb Installation
MAIN ARM
DOOR CLOSER
FOREARM
ARM SHOE
SPEED ADJUSTING VALVES
Option B Instructions: 1.
two (2) locations on door to mount arm shoe.
3.
for 1/4-20 machine screws.
Install adjustable forearm/arm shoe to frame using screws (a) or (b).
ING VALVES MUST BE POSITIONED TOWARD HINGE SIDE.
6.
Adjust length of forearm so that forearm is perpendicular to door when assembled to preloaded main arm. Secure forearm to main arm with screw/washer (f).
door's closing speed and power, see page 4 for reference.
Option C –
Parallel Arm
PARALLEL BRACKET
FOREARM
DOOR CLOSER
(Left Hand Door)
MAIN ARM
FOREARM
SPEED ADJUSTING
VALVES
DOOR CLOSER
(Right Hand Door)
QDC 300
1
-1/4
(32)
ARM SHOE
Right hand door shown, reverse
measurements for a left hand door
application.
Hinge or Pivot
. Using the measurements from diagram A, mark screw hole center locations. Mark four (4) location on door to mount door closer and two
2.
Drill pilot holes in door and frame, 7/32" (5.5mm) diameter for wood, or #7 (.201" diameter) for all purpose screws or
5.
Install main arm to top pinion shaft, perpendicular to door. Secure tightly with arm screw/washer (e).
Hinge or Pivot
Left hand door shown, reverse
measurements for a right hand
door application.
1/2
(Left Hand Door)
(13)
Using the measurements from diagram B, mark screw hole center locations. Mark four (4) location on frame to mount door closer and
2.
Drill pilot holes in door and frame, drill 7/32" (5.5mm) diameter holes for wood screws or drill and tap #7 (.201" diameter)
5.
8.
Snap pinion cap over shaft at bottom of closer or install (optional) cover with small screws (j).
Installation
Option C
measurements from diagram C, mark screw hole
MAIN ARM
center locations. Mark four (4) location on door to
mount door closer and four (4) locations on inside
frame to mount parallel bracket.
door and frame, drill 7/32" (5.5mm) diameter holes for
wood screws or drill and tap #7 (.201" diameter) for
1/4-20 machine screws.
to frame using screws (g) or (h).
onto door using screws (c) or (d). SPEED ADJUST-
ING VALVES MUST BE POSITIONED AWAY FROM
HINGE SIDE.
shaft, indexing main arm mark "L" or "R with pinion
SPEED ADJUSTING
flat as shown in figure 1.
VALVES
screw/washer (e).
forearm (see figure 2). Install ROD end of forearm
to bracket using the screw (i).
adjust length of forearm so that the tip of the main
PARALLEL
arm is approximately 1-1/2" (38mm) away from being
BRACKET
parallel with door, when connected to the forearm.
Secure with screw/washer (f).
closing speed and power, see page 4 for reference.
9.
Snap pinion cap over shaft at bottom of closer or
install (optional) cover with small screws (j).
Figure 1
Left hand door
Machine X2
(a)
(b)
Machine X4
(c)
(d)
X1
(e)
(f)
Diagram for Option A
6
(152)
3/4
(19)
9
-1/16
A
(230)
Door Opening
To 100°
101° to 120°
121° to 180°
4.
8.
Snap pinion cap over shaft at bottom of closer or install (optional) cover with small screws (j).
Diagram for Option B
Door Opening
To 100°
101° to 120°
121° to 180°
9 -1/16
A
(230)
3/4
(19)
6
(152)
Install main arm to bottom pinion shaft, perpendicular to door. Secure tightly with arm screw/washer (e).
Instructions:
1.
Using the
2.
Drill pilot holes in
3.
Install Parallel Bracket
4.
Mount closer
5.
Place main arm on closer pinion
Secure tightly with
6.
Remove arm shoe from
7.
With door closed,
8.
Adjust door's
-
1
1/2
(38)
Main arm
1 of 4
Wood X2
Machine X4
(g)
Wood X4
Wood X4
(h)
Optional
cover
X1
X1
screw.
(i)
(j)
X1
SPEED ADJUSTING VALVES
7/8
1
-3/4
(22)
(44.4)
ARM SHOE
1/8
(3)
Inch
es (mm)
Dim. A
7
(178)
(152)
6
3-1/2
(89)
Mount closer onto door using screws (c) or (d). SPEED ADJUSTING
DOOR CLOSER
Inches (mm)
Dim. A
7-1/2
(191)
6
(152)
3-1/2
(89)
1-1/2
(38)
SPEED ADJUSTING VALVES
1-3/4
(Right Hand Door)
(44.4)
4.
Mount closer onto frame using screws (c) or (d). SPEED ADJUST-
Diagram for Option C
A
1/2
(13)
7/16
(11)
Hinge or Pivot
3
-1/4
(82.5)
3/4
(19)
B
Door Opening
To 100°
101° to 120°
121° to 180°
Right hand door
Main arm
Incorrect installation or
adjustment could
cause damage or injury.
Read and follow
instructions carefully.
MAIN ARM
DOOR CLOSER
FOREARM
(Left Hand Door)
MAIN ARM
FOREARM
ARM SHOE
7.
Adjust
2-3/4
(70)
2
3/8
(50.8)
(9.5)
Left hand door shown, reverse
measurements for a right hand
door application.
9 -1/16
(230)
Inches (mm)
Dim. A
Dim. B
9-1/4
(235)
7-5/8
(194)
7-3/4
(197)
6-1/8
(156)
5-3/4
(146)
4-1/8
(105)
Figure 2
1
ARM SHOE
FOREARM
3
2