NUGOYA L703

NUGOYA Torsion Spring L703/L22 for Hörmann Garage Door

Model: L703 | Brand: NUGOYA

Introduction

This instruction manual provides essential information for the NUGOYA Torsion Spring, models L703 and L22, designed as a replacement component for Hörmann sectional garage doors. It is crucial to read and understand all instructions and safety warnings before attempting installation or maintenance.

Product Overview

The NUGOYA Torsion Spring is a high-quality replacement part manufactured from durable spring wire steel. It is specifically designed to replace Hörmann torsion springs L703 and L22. This particular spring features a left winding direction, indicated by a turquoise blue stripe.

NUGOYA Torsion Spring L703/L22 with turquoise blue stripe

Image 1: NUGOYA Torsion Spring L703/L22. This image shows the torsion spring, typically made of coiled metal, with a visible turquoise blue stripe indicating its left winding direction. The spring is designed for garage door mechanisms.

Key features include:

  • Replaces Hörmann Torsion Spring L703.
  • Replaces Hörmann Torsion Spring L22.
  • Left winding direction, identifiable by a turquoise blue stripe.
  • Suitable for Hörmann spring heads.
  • Constructed from high-quality spring wire steel.

For optimal weight equalization on sectional garage doors, manufacturers typically install two torsion springs: one with a right winding and one with a left winding. It is generally recommended to replace both torsion springs simultaneously to ensure balanced operation and longevity of the garage door system.

Important Safety Information

WARNING: Garage door springs are under extreme tension and can cause severe injury or death if handled improperly. Installation and replacement should only be performed by qualified personnel or individuals with extensive experience in garage door repair, strictly following the manufacturer's instructions for the garage door system.

  • Always consult the specific installation instructions provided with your Hörmann garage door.
  • Ensure the garage door is in a safe, open position and secured before attempting any work on the springs.
  • Wear appropriate personal protective equipment, including safety glasses and gloves.
  • Never attempt to unwind or wind a spring without the proper tools and knowledge.
  • Verify the winding direction (R for right, L for left) by checking the aluminum flag on your existing broken torsion spring. This marking is critical for selecting the correct replacement spring.

Installation

Assembly of this torsion spring is required. Due to the inherent dangers associated with garage door springs, professional installation is highly recommended. If you choose to perform the installation yourself, proceed with extreme caution and adhere strictly to the following guidelines:

  1. Consult Garage Door Manual: Refer to the original installation and maintenance manual for your specific Hörmann garage door model. This manual contains critical safety warnings and step-by-step procedures for spring replacement.
  2. Identify Winding Direction: Before ordering or installing, confirm the winding direction of your existing spring. The crucial indicator is the letter (R or L) stamped on the aluminum flag of the broken torsion spring. This spring is a left-wound spring.
  3. Replace Both Springs: For balanced operation and to prevent premature failure of the remaining spring, it is strongly advised to replace both torsion springs (left and right wound) at the same time.
  4. Tools and Procedure: Use only specialized torsion spring winding bars and follow the exact winding and unwinding procedures outlined in your garage door's instruction manual.
  5. Post-Installation Check: After installation, carefully test the garage door's balance and operation according to your door manufacturer's instructions.

Note: The physical mounting position of the spring (right or left side of the door) does not necessarily correspond to its winding direction (R or L). Always rely on the marking on the spring's aluminum flag.

Operation

The torsion spring is a critical component of your garage door system, providing the necessary counterbalance to lift and lower the door smoothly and safely. Once correctly installed and tensioned, it works in conjunction with the door's cables and drums to manage the door's weight. Proper operation relies on correct spring selection, installation, and tensioning.

If the garage door feels unusually heavy, moves unevenly, or makes excessive noise, it may indicate an issue with the springs or other components. Do not attempt to force the door if it is malfunctioning.

Maintenance

Regular maintenance of your garage door system, including the torsion springs, is essential for safe and reliable operation. While the torsion spring itself requires minimal direct maintenance, consider the following:

  • Lubrication: Periodically lubricate the coils of the torsion spring with a silicone-based lubricant or garage door specific spray. Avoid using grease or oil, which can attract dirt.
  • Visual Inspection: Annually inspect the springs for signs of wear, rust, or damage. Look for gaps between the coils, which can indicate a broken spring.
  • Balance Check: With the garage door closed, disconnect the opener (if applicable) and manually lift the door halfway. A properly balanced door should stay in place. If it falls or rises, the springs may need adjustment. Only qualified technicians should adjust spring tension.
  • Cleanliness: Keep the spring and surrounding components free from dirt, debris, and corrosive substances.

Troubleshooting

If you experience issues with your garage door after spring replacement or during normal operation, consider the following:

  • Door is Heavy or Won't Stay Open: This is a primary indicator of insufficient spring tension or a broken spring. If a spring is broken, it will typically have a visible gap in the coils. Do not attempt to operate the door with a broken spring.
  • Door Moves Unevenly: This could indicate an imbalance between the left and right springs, or issues with cables or drums. Ensure both springs are correctly tensioned and of the appropriate winding direction.
  • Loud Noises: Squeaking or grinding noises might suggest a need for lubrication or indicate wear in the spring or other hardware.

For any issues related to spring tension adjustment or replacement, it is strongly advised to contact a professional garage door technician. Attempting repairs without proper training and tools can be extremely dangerous.

Specifications

Brand NUGOYA
Model Number L703 (replaces L22)
Manufacturer KASTOM
Material Spring Wire Steel
Color Silver (with turquoise blue stripe for winding direction)
Winding Direction Left (indicated by turquoise blue stripe)
Inner Diameter Ø 50 mm
Assembly Required Yes
UPC 747726519422
ASIN B0765TSV6H

Warranty and Support

Specific warranty information for this product is not provided in the available data. For details regarding warranty coverage, please refer to the retailer or the manufacturer, NUGOYA, directly.

For technical support, installation assistance, or inquiries regarding product compatibility, please contact NUGOYA customer service or consult a certified garage door technician.

© 2023 NUGOYA. All rights reserved. This manual is for informational purposes only.

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