DOOR CLOSER - MODEL BC4031 or BC4032 INSTALLATION INSTRUCTIONS - Adjustable to Sizes 1-5

Oct 12, 2026

Uploaded by Aria

Installation instructions for a door closer covering model BC4031 or BC4032, adjustable to sizes 1-5. The guide explains how to preset and adjust spring power before installation, determine door hand (left or right), select recommended fastener drill sizes and depths, and follow safety cautions for valves. It details procedures for regular arm and top jamb installation, including mounting steps, aligning the pinion dimple, setting forearm preload, and using charts to regulate closing speed, sweep speed, latching speed, power, and backcheck resistance.

LanguageEnglish

CategoryGeneral

FormatPDF

Pages4

Reading Time2 min

AccessFree to download

Preparation and Setup

Spring power adjustment and maximum turns

Recommended fastener drill sizes and depths

Determine door hand (left/right)

Closing speed and sweep/latching speed control

Installation Procedures

Regular arm installation steps

Top jamb installation steps

999-30008 DOOR CLOSER MODEL BC4031 or BC4032 INSTALLATION INSTRUCTIONS ADJUSTABLE TO SIZES 1-5 | POWER ADJUSTMENT | | | | | | | | | | | | | | | | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 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. | | | | | | | | | | | | | | | | | | | | | | | | | | EXTERIOR (and VESTIBULE) DOOR WIDTH MINIMUM DOOR WIDTH (24") | | | | | | | INTERIOR DOOR WIDTH MINIMUM DOOR WIDTH (24") | | | | | | | | | | | | | | | | | | | 24"
(610mm) | | 30"
(762mm) | | 36"
(914mm) | | 42"
(1067mm) | 24"
(610mm) | | | | | 30"
(762mm) | | | 34"
(865mm) | | | 38"
(965mm) | | 48"
(1219mm) | | | | 54"
(1372mm) | | REGULAR ARM &
TOP JAMB PARALLEL ARM | | | | |
SIZE 5 | | REGULAR ARM &
TOP JAMB PARALLEL ARM | | | | | | | | | | | | | |
SIZE 5 | | | | | PREPARATION FOR FASTENERS | | | | | | | | | | | | | | | | | | | | | | | | | | 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 1/8" 1-1/4" Hardwood 3/16" Hollow Metal 3/16" | | | | | | | | | | | | | | | | | | * Measure door thickness before
drilling pilot holes to prevent drilling
through opposite side | | | | | | | | DETERMINE HAND OF DOOR | | | | | | | | COMPONENTS | | | | | | | | | | | | | | | | | |
PULL SIDE

STOP SIDE OF DOOR STOP SIDE OF DOOR
PUSH SIDE
THIS IS A LEFT HAND DOOR THIS IS A RIGHT HAND DOOR | | | | | | | | CLOSER BODY~~ ~~

PINION COVER~~ ~~

ELBOW SCREW, | | | | | | ~~ ~~PINION SHAFT
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PA PLATE | | | | | | | | | | | | | | | | |
MAIN ARM SCREW & WASHER | | | | | | | | | | | | | | | | | | | | LOCK WASHER & WASHER | | | | | | ~~ ~~LOCKNUT
| | | | | | | | ~~ ~~FOOT
| | | | | | | | | | | |
~~ ~~FOREARM | | | | | | | | | | | | | | | | | | CLOSING SPEED CONTROL | | | | | | | | | REGULATING SWEEP SPEED & LATCHING SPEED | | | | | | | | | | | | | | | | | CAUTION: DO NOT BACK VALVES OUT OF CLOSER OR LEAK WILL RESULT.

| | | | | | | | |

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

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

THIS VALVE CONTROLS LATCHING SPEED (SLOWER-TURN CLOCKWISE)
(FASTER-TURN COUNTER CLOCKWISE) | | | | | | | | | | | | | | | | | POWER AND BACKCHECK ADJUSTMENT | | | | | | | | | | | | | | | | | FOOT POWER ADJUSTMENT | | | | | | | | |

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.
FOR CUSTOMER CARE CALL TOLL FREE 800-562-5625 OR [info@hamptonproducts.com](info@hamptonproducts.com) | | | | | | | | | 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 | | | | | | | | | | | | | | | | | | | | | | | | | |

| | | | | | | | | REGULAR ARM INSTALLATION
MODEL BC4031 or BC4032 INSTALLATION INSTRUCTIONS
999-3

FAQs

How is spring power preset before installation, and what limit must be followed?

The spring power is preset to 0 turns from the factory. Before installation, adjust the spring power as shown on the charts below and do not exceed the maximum turn.

How do you control closing, sweep, and latching speeds?

Turn the regulating valves clockwise to slow down and counterclockwise to speed up. One valve controls door sweep speed and another controls latching speed, using the same clockwise/counterclockwise direction guidance.

What warnings apply to backcheck and closer valves?

Do not back valves out of the closer, and do not close the backcheck (BC) valve completely. The backcheck valve controls hydraulic resistance within the backcheck range and is not intended to provide a positive stop.

Oct 12, 2026

Uploaded by Aria