Restore proper operation to a compatible LCN 9540 Senior Swing Automatic Door Operator with the LCN 9540-3077-LH-628 Regular Arm Assembly.

Designed specifically for left-hand applications, this genuine LCN replacement arm connects the Senior Swing operator to the door and transfers power from the motor gearbox to open and close the door.

The assembly is finished in 628 Clear Anodized Aluminum to coordinate with standard aluminum automatic-door operator hardware.

Key Features

• Genuine LCN replacement arm assembly

• Part Number: 9540-3077-LH-628

• Series: LCN 9540 Senior Swing

• Regular Arm Assembly

• LH – Left Hand

• 628 Clear Anodized Aluminum

• Designed for push-side Senior Swing applications

• Heavy-duty commercial automatic-door component

• Direct replacement for compatible existing 9540 regular arm assemblies

• Designed for high-traffic automatic swing-door systems

• Suitable for service, repair, and preventive maintenance

What's Included

The 9540-3077 Regular Arm Assembly includes:

• 9540-77 Main Arm Assembly

• 9540-79 Rod / Linkage Assembly

The linkage connects the main operator arm to the door and allows the automatic operator to transfer motion to the door leaf.

Important “Arm Only” Clarification

This product is commonly described as an “Arm Only” replacement, meaning the LCN automatic operator itself is not included.

However, the 9540-3077 is a complete regular arm assembly, not just the individual main arm.

If only the main arm is required, LCN identifies that individual component separately as 9540-77.

Left-Hand Configuration

This specific model is:

LH – Left Hand

LCN Senior Swing arms are handed. Verify the handing of the existing operator and door before ordering.

A right-hand version requires the corresponding RH configuration.

628 Clear Anodized Finish

The 628 / US28 Clear Anodized Aluminum finish provides the standard satin-aluminum appearance commonly used on commercial automatic-door operators and architectural aluminum entrances.

LCN Senior Swing Application

The 9540 Series Senior Swing is LCN's heavy-duty electromechanical automatic swing-door operator platform designed for high-use commercial openings.

The 9540-3077 regular arm is designed for standard push-side applications.

LCN also offers the 9540-3077L Long Arm for applications requiring additional reveal accommodation.

Common Applications

• LCN 9540 Senior Swing operators

• Commercial automatic swing doors

• ADA automatic entrances

• Hospitals and healthcare facilities

• Schools and universities

• Government facilities

• Office buildings

• Retail entrances

• Airports

• Institutional buildings

• High-traffic automatic doors

Product Specifications

Brand: LCN
Manufacturer: Allegion
Series: 9540 Senior Swing
Part Number: 9540-3077-LH-628
Product Type: Regular Arm Assembly
Handing: Left Hand
Arm Type: Regular
Finish: 628 / US28 Clear Anodized Aluminum
Main Arm: 9540-77
Linkage Assembly: 9540-79
Application: Automatic Swing Door Operator
Mounting Application: Push Side
Sale Unit: Each

Important Ordering Information

Before ordering, verify:

• Existing operator is a compatible LCN 9540 Senior Swing

• Left-hand door/operator configuration

• Regular arm rather than long arm

• 628 Clear Anodized finish

• Existing arm and linkage condition

This listing is for the replacement arm assembly only.

The motor gearbox, controller, header, operator assembly, spindle plate, activation devices, and other automatic-door components are not included unless specifically stated.