Chamberlain PD432DM 1/2 HP Attach the Rail to the Header Bracket

Header Wall

Header Bracket

Header/Rail Bracket

Rail

Garage Door

INSTALLATION STEP 3

Attach the Rail to the Header Bracket

•Position the opener on the garage ﬂoor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way you’ll need help. Have someone hold the opener securely on a temporary support to allow the rail to clear the spring.

•Position the header/rail bracket against the header bracket.

•Align the bracket holes and join with a clevis pin 5/16"x2-3/4" as shown. Spacer can be installed on either side of rail.

•Insert a ring fastener to secure.

Ring Fastener

Header Bracket

Clevis Pin	Spacer
Clevis Pin
5/16"x2-3/4"
Header/Rail Bracket
	Rail

Opener Carton or Temporary Support

HARDWARE SHOWN ACTUAL SIZE

Clevis Pin	Ring Fastener	Spacer
5/16"x2-3/4"

Contents

Page Introduction Assembly Installation Adjustment Operation Preparing your garage door Tools needed Planning Planning (Continued) Carton Inventory Hardware Inventory Assemble the Rail Assemble the Rail (continued) Fasten the Rail to the Motor Unit and Install the Trolley Attach the Rail Brackets Determine the Header Bracket Location Install the Header Bracket Attach the Rail to the Header Bracket Install The Protector System ® INSTALLING THE BRACKETS Garage door track installation (preferred): Wall installation (Figure 2 & 3): Floor installation (Figure 4): MOUNTING AND WIRING THE SAFETY SENSORS Recommended Wire Routing Position the Opener Hang the Opener Install the Door Control Attach the Emergency Release Rope and Handle Electrical Requirements Complete the Safety Reversing Sensor Installation Fasten the Door Bracket ONE-PIECEDOORS Metal Doors: Connect Door Arm to Trolley ALL ONE-PIECEDOORS 1. Assemble the door arm, Figure 5: 2.Adjustment procedures, Figure 6: •Closed door adjustment: decrease DOWN travel limit 3.Connect the door arm to the trolley: Adjust the UP and DOWN Travel Limits Adjust the Force Test the Safety Reversal System Test The Protector System® Using Your Garage Door Opener Using the Wall-MountedDoor Control THE MULTI-FUNCTIONDOOR CONTROL Light feature DISCONNECT THE TROLLEY: Lock feature LIMIT AND FORCE ADJUSTMENTS: THE REMOTE CONTROL BATTERY MAINTENANCE SCHEDULE Every Month Every Year 2. My remotes will not activate the door: 3.My door reverses for no apparent reason: 5.My lights will not turn off when door is open: Diagnostic Chart 1 FLASH 2 FLASHES 3 FLASHES 4 FLASHES To Add or Reprogram a Hand-heldRemote Control To Erase All Codes From Motor Unit Memory *3-ButtonRemotes (315 MHz) To Add, Reprogram or Change a Keyless Entry PIN Rail Assembly Parts KEY NO DESCRIPTION Installation Parts Motor Unit Assembly Parts 953D 3-ButtonSECURITY✚® Remote Control : 935CB 940D OUR LARGE SERVICE ORGANIZATION SPANS AMERICA INSTALLATION AND SERVICE INFORMATION IS AS NEAR AS YOUR TELEPHONE SIMPLY DIAL OUR TOLL FREE NUMBER: