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FASTENERS

DOOR OR FRAME

RECOMMENDED DRILL SIZES

DRILL DEPTH

Machine Screw

Hollow Metal or Aluminum

#7 (.201") & 1/4-20 Tap

*Through One Side

Sheet Metal Screw

Wood Cored

Hardwood

Hollow Metal

PREPARATION FOR FASTENERS

EXTERIOR (and VESTIBULE) DOOR WIDTH MINIMUM DOOR WIDTH (24")

COMPONENTS

THIS VALVE CONTROLS LATCHING SPEED
(SLOWER- TURN CLOCKWISE)
(FASTER - TURN COUNTER CLOCKWISE)  

THIS VALVE CONTROLS DOOR SWEEP SPEED
(SLOWER- TURN CLOCKWISE)
(FASTER - TURN COUNTER CLOCKWISE)  

STANDARD CLOSING CYCLE 

TURN SPEED REGULATING VALVES CLOCKWISE TO SLOW DOWN
OR COUNTER CLOCKWISE TO SPEED UP DOOR MOVEMENT.  

OPENING

10°

BACKCHECK

CLOSING SPEED CONTROL

ATTENTION: 

BACKCHECK ("BC") VALVE 
CONTROLS THE HYDRAULIC 
RESISTANCE TO DOOR 
OPENING IN BACKCHECK 
RANGE.  NEVER CLOSE 

THIS VALVE COMPLETELY.  

IT IS NOT TO PROVIDE A 
POSITIVE STOP.

REGULATING SWEEP SPEED & LATCHING SPEED 

POWER ADJUSTMENT SCREW.  TURN CLOCKWISE 

TO INCREASE OR COUNTER CLOCKWISE TO 

DECREASE.

 

TURN BC REGULATING VALVE CLOCKWISE 

TO INCREASE OR COUNTER CLOCKWISE TO

DECREASE. 

NEVER CLOSE THIS VALVE 

COMPLETELY.

MOVE FOOT PIVOT TO HOLE AS ILLUSTRATED 

LESS POWER

MORE POWER

STANDARD POSITION

HINGE EDGE OF DOOR

FOR CUSTOMER CARE CALL TOLL FREE 800-562-5625 OR 

info@hamptonproducts.com

INTERIOR DOOR WIDTH MINIMUM DOOR WIDTH (24")

BEFORE INSTALLATION, ADJUST THE SPRING POWER AS SHOWN ON CHARTS BELOW.  DO NOT EXCEED THE MAXIMUM TURN.  THE SPRING POWER HAS BEEN PRESET TO “0” TURNS FROM FACTORY.

CAUTION: DO NOT BACK 

VALVES OUT OF CLOSER

OR LEAK WILL RESULT.

ATTENTION:

ADJUST CLOSING SPEED 
TIME TO BETWEEN 4 & 6 
SECONDS FROM 90°.  
DOORS USED BY: 
HANDICAPPED, ELDERLY 
OR SMALL CHILDREN MAY 
REQUIRE LONGER 
CLOSING TIMES. 

POWER AND BACKCHECK ADJUSTMENT

FOOT POWER

ADJUSTMENT

CAUTION: DO NOT BACK 

VALVES OUT OF CLOSER OR  

A LEAK WILL RESULT.

* Measure door thickness before 

drilling pilot holes to prevent drilling 

through opposite side

24"

(610mm)

30"

(762mm)

36"

(914mm)

REGULAR ARM &

TOP JAMB

SIZE 3

SIZE 4

42"

(1067mm)

SIZE 5

PARALLEL ARM

REGULAR ARM &

TOP JAMB

PARALLEL ARM

SIZE 3

SIZE 4

24"

(610mm)

30"

(762mm)

34"

(865mm)

38"

(965mm)

SIZE 1

SIZE 2

SIZE 3

48"

(1219mm)

SIZE 4

SIZE 1

SIZE 2

SIZE 3

SIZE 4

54"

(1372mm)

SIZE 5

CLOSER BODY

ELBOW SCREW,

LOCK WASHER

& WASHER

PINION COVER

MAIN ARM SCREW

& WASHER

PA PLATE

FOOT

LOCKNUT

FOREARM

PINION SHAFT

DOOR CLOSER

 MODEL BC4031 or BC4032 INSTALLATION INSTRUCTIONS

ADJUSTABLE TO SIZES 1-5

POWER ADJUSTMENT

PAGE 1

999-30008

DETERMINE HAND OF DOOR

PULL SIDE

PUSH SIDE

HINGE SIDE OF DOOR

STOP SIDE OF DOOR

STOP SIDE OF DOOR

HINGE SIDE OF DOOR

THIS IS A RIGHT HAND DOOR

THIS IS A LEFT HAND DOOR

S

WE

EP

LATCH

COMMERCIAL

       1-1/4"

         3/16" 

         3/16"

          1/8" 

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