1. Introduction
This manual provides essential instructions for the proper installation, maintenance, and troubleshooting of the DoorKing #40 chain accessory (Model DK2600-442). This chain is designed for use with DoorKing Model 9050 and 9070 slide gate operators. Please read this manual thoroughly before beginning any installation or maintenance procedures to ensure safe and correct operation.
The package includes 20 feet of #40 chain and two master links, which are crucial components for connecting the chain ends and securing it to the gate operator system.
2. Safety Information
Always observe the following safety precautions during installation, maintenance, and operation of the gate operator system:
- Disconnect Power: Always disconnect all electrical power to the gate operator before performing any installation, maintenance, or repair work.
- Qualified Personnel: Installation and service should only be performed by qualified and experienced personnel.
- Personal Protective Equipment (PPE): Wear appropriate PPE, including safety glasses and gloves, to prevent injury.
- Pinch Points: Be aware of moving parts and potential pinch points when working near the gate operator and chain.
- Secure Components: Ensure all components, especially master links, are securely fastened to prevent accidental detachment.
3. Installation Instructions
This section outlines the steps for installing the #40 chain onto your DoorKing Model 9050 or 9070 slide gate operator.
3.1 Components Overview
The accessory package includes:
- 20 feet of #40 roller chain
- Two #40 master links
Figure 1: Example of #40 roller chain and master links. The chain is a series of interconnected metal links, and the master links are used to join chain ends.
3.2 Chain Installation Steps
- Prepare the Operator: Ensure the gate operator is powered off and the gate is in a safe, stationary position. Refer to your specific DoorKing 9050 or 9070 operator manual for detailed safety and preparation steps.
- Measure and Cut Chain: Carefully measure the required length of chain for your gate installation. The chain should span the length of the gate, allowing for connection to the operator's chain brackets. Cut the #40 chain to the appropriate length using a chain breaker tool.
- Attach Chain to Gate Brackets: Securely attach one end of the #40 chain to the gate's front chain bracket. Use one of the provided master links to create a loop or connection point as required by your gate's design. Ensure the master link clip is fully seated and secure.
- Route Chain Through Operator: Route the chain around the operator's drive sprocket. Ensure the chain teeth engage correctly with the sprocket.
- Attach Second End to Gate Brackets: Pull the chain taut and attach the other end to the gate's rear chain bracket. Use the second master link to complete this connection. Again, verify the master link clip is securely in place.
- Adjust Chain Tension: The chain should be taut but not overly tight. There should be a slight amount of slack (typically 1/4 to 1/2 inch of vertical movement) to prevent excessive wear on the operator and chain. Adjust the chain tensioning mechanism on your gate operator as per its specific manual.
- Inspect All Connections: Double-check all chain connections, especially the master links, to ensure they are properly installed and secure.
- Test Operation: Restore power to the gate operator. Carefully test the gate's movement, observing the chain for smooth operation, proper tension, and any signs of binding or misalignment. Make any necessary adjustments.
4. Maintenance
Regular maintenance of the #40 chain is crucial for extending its lifespan and ensuring reliable gate operator performance.
4.1 Inspection Schedule
- Monthly: Visually inspect the entire length of the chain for signs of wear, rust, corrosion, bent links, or damage. Check master links for security.
- Quarterly: Check chain tension. Adjust if too loose or too tight.
- Annually: Perform a thorough cleaning and lubrication.
4.2 Cleaning and Lubrication
- Disconnect Power: Always disconnect power to the gate operator before cleaning or lubricating the chain.
- Clean the Chain: Use a stiff brush and a suitable degreaser to remove dirt, grime, and old lubricant from the chain. Wipe the chain clean with a rag.
- Apply Lubricant: Apply a high-quality chain lubricant specifically designed for outdoor use or gate operators. Ensure the lubricant penetrates between the rollers and pins of the chain. Avoid using grease, which can attract dirt.
- Wipe Excess: Wipe off any excess lubricant to prevent it from attracting dust and debris.
Figure 2: Applying lubricant to the #40 roller chain. Ensure lubricant reaches all moving parts of the chain links.
4.3 Chain Replacement
Replace the chain if you observe significant wear, stretching, rust that cannot be removed, or any broken links. Worn chains can lead to poor gate operation and potential safety hazards.
5. Troubleshooting
This section addresses common issues related to the #40 chain. For issues related to the gate operator itself, refer to the DoorKing 9050 or 9070 operator manual.
| Problem | Possible Cause | Solution |
|---|---|---|
| Chain is excessively noisy. | Lack of lubrication, improper tension, worn chain or sprocket. | Clean and lubricate the chain. Adjust chain tension. Inspect chain and sprocket for wear and replace if necessary. |
| Chain appears loose or sags. | Chain stretching due to wear, improper initial tension. | Adjust chain tension. If chain is significantly stretched or worn, replace it. |
| Gate movement is jerky or inconsistent. | Uneven chain tension, binding links, worn chain or sprocket. | Check and adjust chain tension. Inspect chain for bent or binding links. Replace worn components. |
| Master link detaches. | Improper installation of master link clip, excessive force, worn master link. | Reinstall master link correctly, ensuring clip is fully seated. Replace master link if damaged or worn. |
6. Specifications
- Product Model: DK2600-442
- Chain Type: #40 Roller Chain
- Length: 20 feet (6.1 meters)
- Included Components: 2 x #40 Master Links
- Compatibility: DoorKing Model 9050 and 9070 Slide Gate Operators
- Material: Steel
7. Warranty Information
This DoorKing #40 chain accessory is typically covered under a limited warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary. Please refer to the warranty documentation provided with your original DoorKing gate operator or visit the official DoorKing website for detailed warranty information. Keep your proof of purchase for warranty claims.
Note: Damage resulting from improper installation, lack of maintenance, or misuse is generally not covered under warranty.
8. Customer Support
For technical assistance, replacement parts, or further information regarding your DoorKing #40 chain or gate operator, please contact DoorKing customer support or your authorized DoorKing dealer.
DoorKing Official Website: www.doorking.com
Please have your product model number (DK2600-442) and gate operator model (9050 or 9070) available when contacting support.
