1. Product Overview
The MantelMount MM340 is an advanced pull-down TV mount engineered to provide optimal viewing angles for televisions installed above a fireplace. It features a full range of motion, allowing the TV to be pulled down up to 27 inches vertically and swiveled 30 degrees left or right. This design addresses common issues like neck strain and glare associated with high-mounted televisions, ensuring a comfortable viewing experience.
Key features include:
- Full Range Motion: Up to 27" vertical travel, 30° swivel left/right, and 19" off-the-wall extension.
- Patented Construction: Utilizes high-quality automotive gas pistons and state-of-the-art counterbalanced technology for smooth operation.
- User-Friendly Design: Equipped with pull-down handles, adjustable stops, and patented TV auto-straightening and gas piston auto-stabilization.
- Wide Compatibility: Supports TVs from 44" to 80" weighing between 20 to 90 lbs, with VESA compatibility up to 600mm x 600mm.
- Safety Certified: UL Listed for assured quality and safety.

2. Safety Information
Please read and understand all safety warnings before installation and operation of the MantelMount MM340. Failure to do so may result in property damage, injury, or death.
- Fireplace Use: It is not recommended to have your TV in the lowered position when your fireplace is turned on. Excessive heat can damage your television.
- Weight Capacity: Do not exceed the maximum weight capacity of 90 lbs (including soundbar, if applicable). Overloading can lead to mount failure and injury.
- TV Size: Ensure your TV falls within the recommended size range of 44" to 80" for optimal performance and safety.
- Professional Installation: If you are unsure about any part of the installation process, consult a qualified professional.
- Secure Mounting: Always mount the unit to sturdy wall studs or appropriate masonry using the provided hardware.
3. Before Installation
Before beginning the installation, verify that your TV and wall space meet the necessary criteria for the MM340 mount. This ensures a safe and functional setup.
- Screen Size: Compatible with TVs from 44" to 80" (diagonally).
- Weight Capacity: Supports TVs weighing 20 to 90 lbs.
- VESA Compliance: VESA patterns up to 600mm x 600mm (Width: 200-600mm, Height: 200-600mm).
- Mantel Depth: Maximum 18" deep mantel for proper clearance.
- Wood Studs: Reaches studs up to 24" apart. Wall covering maximum 5/8".
Refer to the detailed installation manual (PDF) for comprehensive pre-installation checks and measurements. A link to the official manual is available on the product page.


4. Setup and Installation
The MantelMount MM340 is designed for straightforward installation, though it requires careful attention to detail. It is highly recommended to have two people for the installation process due to the weight and size of the mount and television.
- Unpack and Verify: Carefully unpack all components and verify against the parts list in the installation manual.
- Wall Plate Installation: Securely attach the wall plate to your wall studs or masonry using the appropriate hardware. Ensure it is level and firmly anchored.
- Mount Assembly: Assemble the main components of the mount, including the gas pistons and articulating arms, as per the manual's instructions.
- TV Bracket Attachment: Attach the TV brackets to the back of your television, ensuring proper VESA alignment.
- Mount TV: Carefully lift and hook the television onto the main mount assembly. Secure all safety mechanisms.
- Adjustments: Perform initial adjustments for gas piston tension and set the desired upper and lower stop positions.
For detailed, step-by-step instructions, including specific measurements and hardware usage, please consult the official Installation Manual (PDF).


5. Operating Instructions
The MantelMount MM340 is designed for smooth and effortless operation, allowing you to easily adjust your TV's position for optimal viewing.
- Pulling Down the TV: Gently grasp the pull-down handles located at the bottom of the TV brackets. Apply a steady, downward force to lower the TV. The gas pistons will assist in a smooth, controlled descent.
- Raising the TV: To raise the TV, gently push upwards on the pull-down handles. The gas pistons will assist in lifting the TV back to its retracted position above the fireplace.
- Swiveling the TV: Once the TV is in the lowered position, you can manually swivel it up to 30 degrees left or right to achieve your desired viewing angle.
- Adjustable Stops: The mount features adjustable stops that allow you to set the precise upper and lower limits for the TV's travel. This prevents the TV from hitting the mantel or ceiling.
- Auto-Straightening: The patented auto-straightening feature ensures the TV returns to a perfectly level position when raised or lowered.


6. Maintenance
To ensure the longevity and smooth operation of your MantelMount MM340, follow these simple maintenance guidelines:
- Regular Cleaning: Wipe down the mount with a soft, dry cloth to remove dust and debris. Avoid abrasive cleaners or solvents.
- Check Connections: Periodically inspect all bolts, screws, and connections to ensure they are secure. Tighten any loose fasteners.
- Lubrication: The gas pistons are designed for maintenance-free operation. Do not attempt to lubricate them unless specifically instructed by MantelMount support.
- Inspect for Wear: Check for any signs of wear or damage to the moving parts or cables. If any issues are found, contact customer support immediately.
7. Troubleshooting
If you encounter any issues with your MantelMount MM340, refer to the following common troubleshooting tips:
- Mount feels too stiff or too loose: The gas piston tension may need adjustment. Refer to the installation manual for instructions on how to adjust the tension to match your TV's weight.
- TV does not stay in desired position: Ensure the adjustable stops are correctly set. If the issue persists, the gas piston tension might need recalibration.
- Mount makes unusual noises: Check for any loose fasteners or obstructions. If the noise continues, contact MantelMount customer support.
- TV is not level: The auto-straightening feature should correct this. If not, check the installation for proper alignment and ensure all mounting points are secure.
For more complex issues or if the problem persists, please contact MantelMount customer support for assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 30 x 7.25 x 25 inches |
| Item Weight | 25 pounds |
| Model Number | MM340 |
| Mounting Type | Wall Mount |
| Movement Type | Swivel, Pull-Down |
| Brand | MantelMount |
| Material | Alloy Steel |
| Maximum Compatible TV Size | 80 Inches |
| Minimum Compatible TV Size | 44 Inches |
| Maximum TV Weight | 90 lbs |
| VESA Compatibility | Up to 600mm x 600mm |
| Color | Black |
| Maximum Tilt Angle | 30 Degrees (Swivel) |
| UPC | 861709000353 |
9. Warranty and Support
The MantelMount MM340 comes with a Limited Lifetime Warranty, reflecting the manufacturer's confidence in its quality and durability. For specific terms and conditions of the warranty, please refer to the official documentation included with your product or visit the MantelMount website.
For any technical assistance, troubleshooting, or warranty claims, please contact MantelMount customer support. You can also find additional resources and frequently asked questions on their official website.
Official Installation Manual: For detailed instructions and diagrams, please download the Installation Manual (PDF).





