LEFT HAND DOOR
RIGHT HAND DOOR
RIGHT
HAND
DOOR
LEFT
HAND
DOOR
PINION
DIMPLE
PINION
DIMPLE
DOOR
DOOR
PRELOAD
90°
RIGHT
ANGLE
Fig. B
Fig. A
POSITION OF MAIN ARM WHEN
ASSEMBLING TO SPINDLE
1. SELECT DEGREE OF DOOR OPENING. USE DIMENSIONS
SHOWN IN CHART AND ILLUSTRATIONS ABOVE TO MARK
LOCATION OF ATTACHING SCREWS ON THE DOOR AND
FRAME. PREPARE HOLES (See Preparation For Fasteners
chart page 1).
2. DISASSEMBLE FOREARM FROM MAIN ARM BY REMOVING
ELBOW WASHERS AND SCREW.
3. MOUNT MAIN ARM ONTO CLOSER PINION SHAFT, ALIGNING
PINION DIMPLE (see Fig. A.). SECURE WITH MAIN ARM
SCREW AND WASHER.
4. ATTACH CLOSER TO THE DOOR WITH THE SPEED
REGULATING VALVES FACING THE HINGE SIDE OF DOOR.
5. ATTACH THE FOOT OF THE FOREARM TO THE FRAME.
6. ADJUST THE LENGTH OF THE FOREARM TO POSITION THE
FOREARM AT A RIGHT ANGLE TO THE FRAME TO ENSURE
PROPER PRELOAD (see Fig. B).
7. REATTACH MAIN ARM AND FOREARM USING ELBOW
SCREW AND WASHERS. TIGHTEN LOCKNUT ON FOREARM.
8. SNAP PINION CAP ONTO THE PINION AT THE BOTTOM OF
THE CLOSER.
9. ADJUST CLOSER (refer to Speed and Power Adjustment charts
on page 1).
7
TO 100
°
4
3
2
3
2
12
6
0
5
4
3
12
6
0
12
6
0
6
TO 120
°
3-1/2
TO 180
°
UP TO 54"
UP TO 48"
UP TO 38"
UP TO 42"
UP TO 36"
UP TO 30"
*DOOR/WALL/HARDWARE/JAMB CONDITIONS PERMITTING
DIMENSION "A"
OPENING
ANGLE
DOOR WIDTH
CLOSER SIZE
CW TURNS
OF POWER
ADJUSTMENT
SCREW
INCHES
INTERIOR
EXTERIOR
178
152
89
mm
· RIGHT HAND DOOR ILLUSTRATED, SAME DIMENSIONS APPLY TO LEFT HAND DOOR
· MEASURED FROM HINGE CENTERLINE
· DO NOT SCALE DRAWING
DOOR
PINION CAP
SCREW
& WASHER
FOOT
FRAME
9-1/16" (230 mm)
"A"
1 3/4" (44,5 mm)
BC VALVE
SPEED
REGULATING
VALVES
CENTERLINE
OF HINGE
REGULAR ARM INSTALLATION
MODEL BC4031 or BC4032 INSTALLATION INSTRUCTIONS
PAGE 2
999-30008
6" (152 mm)
1" (25,4 mm)
1" (25,4 mm)
3/4"
(19 mm)
