Simplex LR1021S-26D-41 Cylindrical Push Button Lock Instruction Manual

1. Introduction and Overview

The Simplex LR1021S-26D-41 is a mechanical pushbutton cylindrical lock designed for convenient access control. This robust lock provides exterior access via a combination, eliminating the need for keys or electronic cards. Its fully mechanical design means no batteries are required, reducing maintenance and operational costs. Combinations can be changed quickly and easily without removing the lock from the door.

This heavy-duty lock features cast front and back housings, cast knobs, and vandal-resistant solid metal pushbuttons, ensuring durability and security. It includes a cylindrical 1/2-inch (13 mm) throw latch. Please note that a key override core is not included and must be purchased separately if required.

Figure 1: Simplex LR1021S-26D-41 Cylindrical Push Button Lock, showing the keypad and lever handle.

2. Setup and Installation

Proper installation is crucial for the optimal performance and security of your Simplex LR1021S-26D-41 lock. It is recommended that installation be performed by a qualified professional or an individual with experience in door hardware installation.

2.1 Pre-Installation Checks

• Verify all components are present according to the packing list.
• Ensure the door is properly prepared for a cylindrical lock, including bore holes for the lock body and latch.
• Confirm the lock's handing matches your door. This model is factory-handed but can be field-reversible if necessary. Refer to the detailed installation guide provided with the product packaging for specific instructions on field reversal.

2.2 Combination Setting

The lock is easily programmed via its keypad. The combination can be changed without removing the lock from the door. Refer to the specific programming instructions included in the product packaging for detailed steps on setting and changing the access code. This process typically involves a series of button presses and lever turns.

2.3 Key Override Core (Optional)

If a key override function is desired, a compatible key override core must be purchased separately and installed according to its specific instructions. Ensure the core is correctly integrated with the lock mechanism.

3. Operating Instructions

The Simplex LR1021S-26D-41 lock provides secure access through a user-defined combination.

3.1 Gaining Access

1. Enter the correct combination by pressing the designated buttons on the keypad in the correct sequence.
2. After entering the combination, turn the lever handle to retract the latch.
3. Open the door.
4. Release the lever handle to allow the latch to extend and secure the door.

The lock automatically re-locks when the door is closed and the lever is released, preventing unauthorized entry.

3.2 Changing the Combination

The combination can be changed at any time without removing the lock from the door. This feature allows for quick security updates. Refer to the detailed programming instructions provided with your lock for the exact procedure. Typically, this involves a specific sequence of button presses and a reset mechanism.

4. Maintenance

Regular maintenance ensures the longevity and reliable operation of your Simplex LR1021S-26D-41 lock.

4.1 Cleaning

• Clean the exterior surfaces of the lock with a soft, damp cloth.
• Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and internal components.
• Periodically wipe the keypad buttons to remove dirt and grime that could affect their operation.

4.2 Lubrication

While the Simplex lock is designed for minimal maintenance, occasional lubrication of moving parts can enhance its smooth operation. Use a silicone-based lubricant or a dry graphite lubricant sparingly on the latch bolt and inside the lever mechanism. Avoid oil-based lubricants, which can attract dust and dirt.

4.3 Inspection

Periodically inspect the lock for any signs of wear, damage, or loose components. Ensure all mounting screws are secure. If any issues are detected, address them promptly to prevent further damage or compromise to security.

5. Troubleshooting

If you encounter issues with your Simplex LR1021S-26D-41 lock, refer to the following common troubleshooting steps:

5.1 Lever Does Not Turn After Entering Code

• Incorrect Combination: Ensure the correct combination is being entered. Try re-entering the code carefully.
• Combination Not Fully Reset: After a previous entry, ensure the lock mechanism has fully reset before attempting a new combination.
• Internal Mechanism Obstruction: Check for any foreign objects or debris that might be obstructing the internal mechanism.

5.2 Latch Does Not Retract Fully

• Door Misalignment: Check if the door is properly aligned with the frame. Misalignment can cause the latch to bind.
• Strike Plate Misalignment: Ensure the strike plate on the door frame is correctly aligned with the latch bolt.
• Debris in Latch Mechanism: Inspect the latch bolt area for any dirt or debris that might be impeding its movement. Clean if necessary.

5.3 Difficulty Changing Combination

• Incorrect Procedure: Review the combination change instructions provided with your lock. Ensure each step is followed precisely.
• Worn Components: If the lock is very old, internal components might be worn. In such cases, professional service or replacement may be necessary.

For persistent issues not resolved by these steps, contact Simplex customer support or a qualified locksmith.

6. Specifications

7. Warranty and Support

Specific warranty terms and conditions for the Simplex LR1021S-26D-41 lock are provided by the manufacturer at the time of purchase. Please refer to the documentation included with your product or contact your retailer for detailed warranty information.

For technical support, parts, or service inquiries, please contact Simplex customer service directly. Contact information can typically be found on the manufacturer's official website or within the product packaging.