LiftMaster MA010 Barrier Arm Bracket — Documented Mega Arm Applications

The LiftMaster MA010 is the barrier-arm bracket identified in the documented Mega Arm operator assembly. It connects the specified arm arrangement to the operator’s output mounting system and is distinct from the arm itself, shaft collar and shear-pin hardware. Select it by the exact operator model and installed arm connection rather than by the Mega product name alone. After an impact, inspect the complete mounting and drive arrangement before replacing the visible bracket, because bent or damaged surrounding parts can affect the new component’s alignment and operation.

Compatibility — Models, Versions and Exclusions

Inspect the Entire Arm Connection After an Impact

A barrier arm can transmit impact loads into its bracket, collar, shaft and operator. Have the technician inspect those parts before deciding that a bracket-only repair is sufficient. Record the original mounting configuration and compare it with the manufacturer drawing. A new bracket should not be used to conceal a bent shaft or compensate for an unapproved arm installation.

The manufacturer separately identifies the shear pin and mounting hardware. Preserve that distinction when ordering and installing parts. Do not replace a specified shear component with an arbitrary stronger bolt or assume any fastener of a similar diameter is equivalent. The arm must be supported during service, and the repaired assembly must follow the operator’s prescribed setup and testing procedure.

Specifications and Product Identification

Before Ordering

• Record the complete operator model and installed barrier-arm type.
• Locate MA010 and the associated mounting parts in the correct diagram.
• Inspect the shaft, collar, arm and surrounding mechanism after any impact.
• Confirm the bracket package and separately required shear pin and fasteners.

Package Contents and Separate Requirements

This listing identifies the MA010 arm bracket. The barrier arm, output shaft, shaft collar, MA013 shear pin and separately numbered mounting hardware are not promised as included. Confirm the current carton before ordering the repair parts. A drawing of the complete arm assembly shows how components relate; it should not be interpreted as a promise that the bracket carton contains the entire connection system.

Safety Warnings — Read Before Installation or Service

• WARNING: A barrier arm can fall or move unexpectedly when its bracket or drive connection is disturbed. A qualified technician must support and secure it before service.
• Isolate all applicable power and prevent accidental access commands while the arm mounting is open. Keep people and vehicles outside the work area.
• Do not improvise shear hardware, force a bent mounting into alignment or operate with a loose arm connection. Follow the manufacturer’s repair requirements.
• Verify secure attachment, prescribed travel and all required vehicle-detection and protection functions before reopening the lane. Keep pedestrian access separate as required by the site design.

Related Products and Important Differences

• LOOPDETLM loop detector — a separate detection option only where the operator and loop arrangement approve it; not mounting hardware.
• LMRRUL monitored photo eye — a separate protection option for an approved operator configuration; bracket replacement does not establish sensor compatibility.

Frequently Asked Questions

Is MA010 a complete replacement barrier arm?

No. It identifies the arm bracket, not the arm or complete operator.

Does the bracket include MA013?

The shear pin is separately identified. Confirm the current package rather than assuming it is included.

Can a stronger ordinary bolt replace the specified shear pin?

Do not make that substitution. Use the documented hardware and installation method.

Will replacing the bracket resolve all collision damage?

No. The arm, shaft, collar and surrounding mechanism need inspection for additional damage.

Need Help Confirming the Right Product?

Contact Garage-DoorParts.com before ordering. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.