Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the FORTSTRONG FS-7600 HOS Commercial Door Closer. Designed for low to medium traffic areas, this adjustable Grade 1 commercial door closer features a hold-open mechanism and is ADA compliant and UL Listed. Please read these instructions thoroughly before installation and use to ensure proper function and safety.

The FORTSTRONG FS-7600 HOS door closer is certified to UL & CUL, ANSI/BHMA A 156.4 Grade 1, and meets ADA 5lbs opening force requirements, making it suitable for high-traffic commercial environments.
Safety Information
- Always wear appropriate personal protective equipment, including safety glasses, during installation.
- Ensure the door closer is installed by qualified personnel.
- Do not use this door closer on fire doors unless specifically approved for such applications. This model is not rated for use on fire doors.
- Improper adjustment can lead to injury or damage to the door and frame. Follow adjustment instructions carefully.
- Keep children and pets away from the installation area.
Package Contents
Verify that all components are present before beginning installation:
- FS-7600 HOS Closer (Commercial Grade)
- Door Closer Arm with Hold Open Feature
- Installation Hardware (fixing screws, connecting arm nut)
- End Cap
- Installation Instructions (this guide)
- Parallel Arm Plate
- Allen Wrench

All necessary components for installation are included in the box.
Setup and Installation
The FS-7600 HOS door closer supports three primary installation types to accommodate various door and frame configurations. A detailed fitting template is included to assist with accurate drilling.
Tools Required:
- Phillips Screwdriver
- Tape Measure
- Protective Eyewear
- Drill
- Pencil
- 1/8" Drill Bit

Ensure you have all listed tools before beginning installation.
Installation Types:
Refer to the included template for precise hole placement for each installation method.
- Regular Pull Side Installation: The closer mounts to the door, and the arm mounts to the frame. This method is ideal for interior doors and offers strong closing force.
- Parallel Push Side Installation: The closer mounts to the door, and the arm mounts under the frame. The arm is tucked into the underside of the frame for a cleaner appearance.
- Top Jamb Push Side Installation: The closer mounts to the frame, and the arm mounts to the door. This is common for aluminum and glass doors and keeps the door face uncluttered.

Choose the appropriate installation type based on your door and frame configuration.
Reversibility:
The FS-7600 HOS is fully reversible and supports both left and right hinge installations for interior and exterior doors.

The door closer is designed for universal application on left or right-hand doors.
Operating Instructions: Adjustments
The FS-7600 HOS features independent valves for precise control over door closing speed and latching. Adjustments should be made incrementally to achieve the desired door operation.
Adjustment Points:
- Latching Speed Adjustment (15° to 0°): Controls the final closing speed of the door, preventing slamming. Turn the valve clockwise for slower closing, counter-clockwise for faster closing.
- Closing Speed Adjustment (180° to 15°): Controls the main swing closing speed of the door. Turn the valve clockwise for slower closing, counter-clockwise for faster closing.
- Backcheck Adjustment: Protects the door and frame from damage by providing resistance if the door is opened too far or too quickly. Adjust to strengthen or reduce resistance.
- Spring Power Adjustment: Adjusts the opening force and closing power of the door closer, from Size 1 to 6.

Carefully adjust each setting to achieve optimal door operation.
Hold-Open Feature:
The FS-7600 HOS includes a hold-open feature, allowing the door to remain open at a desired angle. This is beneficial for high-traffic areas, improving traffic flow and supporting wheelchair and mobility access. It also reduces wear on doors and hardware by preventing constant swinging shut.

The hold-open feature is designed for convenience in busy environments, but should not be used on fire doors.
Maintenance
The FORTSTRONG FS-7600 HOS door closer is designed for durability and requires minimal maintenance. Regular inspection is recommended to ensure optimal performance.
- Periodic Inspection: Annually inspect all mounting screws and connections to ensure they are tight.
- Cleaning: Wipe the door closer body and arm with a soft, damp cloth to remove dust and grime. Avoid abrasive cleaners.
- Lubrication: The internal hydraulic mechanism is factory-sealed and does not require lubrication. Do not attempt to open the closer body.
- Adjustment Check: Periodically check the closing and latching speeds to ensure they meet desired performance. Readjust if necessary.
Troubleshooting
If you encounter issues with your door closer, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Door slams shut | Latching speed is too fast. | Adjust the latching speed valve (15° to 0°) clockwise to slow down. |
| Door closes too slowly | Closing speed is too slow. | Adjust the closing speed valve (180° to 15°) counter-clockwise to speed up. |
| Door is difficult to open | Spring power is set too high. | Adjust the spring power to a lower setting (Size 1-6). |
| Door opens too far/hits wall | Backcheck is too weak or not engaged. | Adjust the backcheck valve to strengthen resistance. |
| Oil leakage | Damaged seal or closer body. | Contact customer support for replacement. Do not attempt to repair. |
Specifications
- Model: FS-7600 HOS
- Material: Carbon Steel
- Exterior Finish: Silver
- Installation Type: Screw-In
- Recommended Uses: Commercial door closer
- Specification Met: ADA, ANSI, UL
- Unit Count: 1.0 Count
- Durability: Over 2,000,000 Cycles (550 Uses Per Day)
- Grading: ANSI/BHMA A 156.4 Grade 1
- Fire Rating: Not For Use On Fire Doors
- Door Weight Capacity: Up to 330 lbs
- Door Width Capacity: From 24" to 60"
- Door Type Compatibility: Wood / Metal / Glass
- Size: 1-6 Adjustable

Detailed technical dimensions and data for the FS-7600 HOS door closer.
Warranty and Support
FORTSTRONG stands behind the quality of its hardware and service. If you are not completely satisfied with your purchase, contact FORTSTRONG for a free replacement.
FORTSTRONG offers 24/7 installation support. For any questions or concerns regarding installation or product functionality, please reach out to our customer support team.

FORTSTRONG is committed to product reliability and customer support.