1. Introduction
The Scanstrut LMM-1 Self-Leveling Radar Mount is designed to maintain your marine radar's horizontal position regardless of the vessel's roll or pitch. This ensures consistent radar performance and a clear, stable radar picture by preventing target loss due to boat movement. The mount utilizes a hydraulic damping system to absorb major changes in heel angle while eliminating minor oscillations, providing optimal antenna stability.
2. Key Features
- Hydraulic Damping: Fine-tuned system to eliminate minor oscillations and react to major changes in boat heel angle.
- Sealed System: Completely maintenance-free design.
- Passive Operation: Requires no external power source.
- Lightweight Design: The complete system weighs only 7.5 lbs, reducing weight aloft.
- Easy Upgrade: Shares the same mounting footprint as SC20 and M92722 fixed mast mounts for straightforward replacement.
- Versatile Mast Attachment: Fixed to the mast by four swivel pivots, adapting to the profile of any mast.
- Secure Attachment: Features a 12-point attachment system using high-quality monel rivets.
- Compact Mounting: Ensures the radar extends only a minimum distance from the front of the mast.
3. Compatible Radar Units
The LMM-1 mount is compatible with a range of popular marine radar units, including:
- Garmin GMR18, GMR18HD, GMR24HD
- Raymarine RD218, RD424
- Lowrance 3G Broadband
- Simrad 3G Broadband, DX45, DX60
4. Components Included
The Marine Kit for the LMM-1 includes the following:
- 1 x Leveling Bracket
- 1 x Mast Adapter
- 1 x Complete Clamping Package
5. Materials
The LMM-1 mount is constructed from durable, marine-grade materials:
- Mast Adapter: Highest quality machined and anodized aluminum.
- Base and Base Plate: 316 grade stainless steel.
6. Setup and Installation
Installation of the Scanstrut LMM-1 involves securing the mount to your vessel's mast and then attaching the compatible radar unit. It is recommended that installation be performed by a qualified marine technician to ensure proper alignment and secure fastening.
- Mast Preparation: Ensure the mast surface where the mount will be attached is clean and free from obstructions.
- Mounting the Mast Adapter: Position the mast adapter on the mast. The four swivel pivots allow it to conform to various mast profiles. Secure the adapter using the provided clamping package and 12-point attachment system with monel rivets. Ensure all fastenings are tightened to the manufacturer's specifications.
- Attaching the Leveling Bracket: Connect the leveling bracket to the mast adapter according to the detailed instructions provided in the physical product manual.
- Radar Unit Installation: Mount your compatible radar unit onto the leveling bracket. Follow the radar manufacturer's guidelines for securing the unit to the mount.
- Cable Management: Route all radar cables securely, ensuring they do not interfere with the mount's leveling mechanism or pose a snagging hazard.
Figure 1: Scanstrut LMM-1 Self-Leveling Radar Mount installed on a mast, supporting a Raymarine radar dome. The mount is designed to keep the radar level with the horizon, enhancing performance on a moving vessel.
7. Operating Principles
The LMM-1 mount operates passively, utilizing a hydraulic damping system to counteract the vessel's motion. As the boat rolls or pitches, the mount automatically adjusts to keep the radar antenna level with the horizon. This continuous leveling action ensures that the radar beam remains stable, providing an accurate and consistent radar display, which is crucial for navigation and target detection in varying sea conditions.
8. Maintenance
The Scanstrut LMM-1 Self-Leveling Radar Mount features a sealed hydraulic system, making it completely maintenance-free. Regular inspection for physical damage, corrosion, or loose fastenings is recommended, especially in harsh marine environments. Clean the exterior surfaces with fresh water and a mild detergent as needed to remove salt residue and dirt.
9. Troubleshooting
Should you encounter any issues with the LMM-1 mount, consider the following:
- Radar Not Leveling: Verify that the mount is securely fastened to the mast and that there are no obstructions preventing its movement. Ensure the radar unit itself is properly attached to the leveling bracket.
- Unusual Noises or Resistance: Inspect the mount for any signs of physical damage or foreign objects that might impede its hydraulic system. Do not attempt to disassemble the sealed hydraulic unit.
- Corrosion: While made from marine-grade materials, prolonged exposure to harsh conditions without cleaning can lead to surface corrosion. Regular rinsing with fresh water is advised.
For persistent issues, contact Scanstrut customer support or a certified marine electronics technician.
10. Specifications
| Attribute | Detail |
|---|---|
| Model Number | LMM-1 |
| Product Dimensions (L x W x H) | 16 x 16 x 6 inches (40.64 x 40.64 x 15.24 cm) |
| Item Weight | 10 pounds (4.54 kg) |
| System Weight (complete) | 7.5 lbs (3.4 kg) - as per feature description |
| Manufacturer | Scanstrut |
| Color | Silver and White |
| Mounting Type | Fixed (to mast, with leveling mechanism) |
| Special Feature | Shock Resistant |
| Materials | Anodized Aluminum (adapter), 316 Stainless Steel (base/plate) |
11. Warranty and Support
For information regarding warranty coverage, technical support, or replacement parts for your Scanstrut LMM-1 Self-Leveling Radar Mount, please refer to the official Scanstrut website or contact their customer service department directly. Keep your purchase receipt as proof of purchase for warranty claims.
Scanstrut Contact Information:
- Website: www.scanstrut.com
- Refer to the website for regional contact details and support resources.
