The LCN 4630-3077T Standard Track Arm is a factory-designated, non-handed replacement single-lever arm for compatible LCN 4630 Series Auto Equalizer™ electrohydraulic, low-energy automatic door operators. Finished in 689 Aluminum, this track-style arm is designed to connect the 4630 operator's drive mechanism to its matching track-and-roller arrangement so the properly installed door can operate in manual and powered-opening modes.

Ideal for commercial door maintenance and restoration of existing 4630 installations, the 4630-3077T replaces a worn, bent, missing or damaged standard arm while allowing a qualified technician to retain other serviceable operator components. This product is the replacement track arm only—not a complete automatic operator, standard track or track roller.

Key Features & Benefits

• LCN factory replacement: Manufacturer part number 4630-3077T, designated STDTRKARM / Standard Arm in the LCN automatic-operator catalog.
• Compatible operator family: Specifically listed for the LCN 4630 Auto Equalizer top-jamb, pull-side track-arm system. Confirm exact operator and existing arm identification before ordering.
• Non-handed configuration: The same factory arm type can serve properly prepared right- or left-swinging doors when installed according to the appropriate LCN template.
• Aluminum architectural finish: The listed finish is 689 Aluminum, intended to coordinate with common aluminum-finish LCN automatic-operator hardware.
• Single-lever track-arm design: Works with the matching sliding track/roller arrangement, rather than a conventional 4640 double-lever regular arm.
• Serviceable replacement component: Helps restore correct mechanical linkage, arm travel and door-opening alignment without automatically replacing the motor, controller or hydraulic cylinder.
• Commercial/ADA operator context: Designed for the LCN 4630 low-energy automatic-door system, which is used on accessible commercial openings. The arm alone does not provide power operation or establish code compliance.
• Separate track roller required: The manufacturer specifically states that the 4630-3034 track roller is not included with this replacement arm.

Product Technical Specifications

Important Compatibility: 4630 vs. 4640

The 4630 Series uses a single-lever track arm and is designed for top-jamb, pull-side automatic-operator mounting. The related 4640 Series uses a double-lever regular arm for top-jamb, push-side mounting. These are different mechanical geometries. Do not substitute this 4630-3077T arm for a 4640 regular arm simply because the two operator families share the Auto Equalizer name.

Similarly, this track arm is not the same as a standard LCN 4040XP closer REGARM. The 4630 automatic-operator linkage must match the original spindle arrangement, track, roller, mounting dimensions and factory template.

Related LCN 4630 Parts — Order Separately When Needed

Track and hold-open note: LCN's standard 4630 track is a separate component. The standard track does not accept a mechanical hold-open clip or bumper assembly. The complete 4630 operator may offer electronic hold-open control; that is an operator/controller feature and is not built into this replacement arm.

LCN Standard 4630 Mounting Considerations

For standard 4630 top-jamb (pull-side) operator mounting, the manufacturer's technical catalog lists the following reference clearances. These describe the complete operator installation, not dimensions of the replacement arm itself. The current template for your specific opening takes precedence:

If the existing door has unusual frame conditions, deep reveals, special pivots, additional tracks or a customized operator installation, consult the applicable LCN special template or LCN Product Support before assuming the standard 4630 arm will fit.

Replacement & Installation Checklist

1. Identify the operator: Confirm the installed door operator is an LCN 4630 Auto Equalizer, not a 4640 or conventional hydraulic door closer. Compare the original arm and factory part designation.
2. Secure the opening: Have qualified service personnel isolate operator power and safely secure the door/arm before removing fasteners or working around spring-loaded or moving components.
3. Inspect the full linkage: Check the operator spindle, existing arm, arm screw, track, roller, track end caps and door/frame fasteners. Determine which components need replacement.
4. Confirm track and roller compatibility: Verify a compatible 4630-3038 track and 4630-3034 roller are present and serviceable; purchase them separately if required.
5. Verify installation geometry: Check top-jamb pull-side layout, door handing, hinge position, reveal, head-frame clearance and standard mounting-template dimensions.
6. Match the finish: Select the 689 Aluminum finish to coordinate with the installed cover, track and related operator hardware.
7. Install per LCN directions: Use the correct arm screw, mounting hardware and attachment positions. Do not force the arm onto incompatible splines or improvise arm preload or linkage alignment.
8. Test manual operation first: Verify smooth roller travel, adequate clearance, secure fastening, full manual swing and absence of binding, scraping or unexpected stopping.
9. Restore power and commission: Using the current LCN instructions, test powered opening, manual closing, door speed, sequencing, any electronic hold-open settings, activation devices and safety behavior.
10. Confirm code compliance: Verify the completed automatic opening meets the applicable accessibility, low-energy operator, egress and fire/life-safety requirements. The arm alone does not determine those approvals.

Typical Commercial Applications

Maintenance and repair of LCN 4630 powered accessible entrances in hospitals, medical offices, assisted-living facilities, schools, universities, government buildings, offices, retail stores, airports and other commercial facilities. The 4630 operator is primarily intended for manually operated doors that sometimes require powered low-energy opening.

What Is Included / Excluded

Included: One LCN 4630-3077T Standard Track Arm, 689 Aluminum finish, subject to the original factory package contents. Not included: 4630-3034 track roller, separately cataloged 4630-3038 standard track, complete electrohydraulic door operator, motor/clutch assembly, control electronics, actuator, mounting cover, and any specialized replacement fasteners not identified in the factory package.

Shipping and Ordering Notes

Shopify shipping weight: 3 lb per unit, retained from the existing listing. Confirm the actual packaged weight and dimensions before final carrier rating. Compare the manufacturer's exact 4630 track-arm designation and your door's original mounting configuration before placing an order.

For diagrams, related replacement parts, complete 4630 mounting specifications and official installation guidance, consult the LCN Automatic Operators Catalog and the current LCN 4630/4640 Auto Equalizer product and installation resources.