CRKT LCK+ Folding Pocket Knife Model 3801 Instruction Manual

1. Introduction

This manual provides essential information for the safe and effective use of your CRKT LCK+ Folding Pocket Knife, Model 3801. The LCK+ is designed for everyday carry, featuring an Assisted Opening mechanism, a durable drop point blade, and a glass-reinforced nylon handle. Please read these instructions thoroughly before using your knife.

Image 1.1: The CRKT LCK+ Folding Pocket Knife, Model 3801, in its open position, showcasing the blade and handle design.

2. Safety Information

Always exercise extreme caution when handling any knife. Improper use can result in serious injury.

• Keep Sharp: A sharp blade is safer than a dull one, as it requires less force to cut.
• Handle with Care: Always hold the knife by the handle. Keep fingers clear of the blade path when opening or closing.
• Proper Storage: Store the knife in a secure location, out of reach of children and individuals unfamiliar with knife safety.
• Intended Use: Use the knife only for its intended purpose. Avoid prying, throwing, or using it as a screwdriver.
• Maintenance: Regularly inspect the knife for any damage or loose parts. Do not use a damaged knife.

3. Components

Familiarize yourself with the main parts of your CRKT LCK+ knife:

1. Blade: The cutting edge, made from 8Cr13MoV stainless steel with a satin finish and drop point shape.
2. Handle: Constructed from glass-reinforced nylon for durability and a secure grip.
3. Flipper: A small protrusion on the blade that assists in rapid opening.
4. Liner Lock: A spring-tensioned liner that moves into place behind the blade when open, locking it securely.
5. IKBS Ball Bearing Pivot System: Provides smooth blade rotation for effortless opening and closing.
6. Pocket Clip: A deep-carry clip for secure and discreet carrying.

Image 3.1: Side profile of the CRKT LCK+ knife, highlighting the blade's satin finish and the textured glass-reinforced nylon handle.

4. Setup

Your CRKT LCK+ knife comes ready for use. Upon unboxing, inspect the knife for any signs of damage or manufacturing defects. Ensure the blade opens and closes smoothly and that the liner lock engages properly. No assembly is required.

5. Operating Instructions

5.1. Opening the Blade (Assisted Opening)

The LCK+ features an Assisted Opening mechanism for quick deployment:

1. Hold the knife firmly in your dominant hand, ensuring your fingers are clear of the blade path.
2. Locate the flipper on the spine of the knife near the pivot.
3. Apply a quick, firm push downwards on the flipper with your index finger. The blade will rapidly rotate open and lock into place.
4. Verify that the liner lock has fully engaged, securing the blade in the open position.

Image 5.1: A hand demonstrating the proper grip on the CRKT LCK+ knife, ready for deployment or use.

5.2. Closing the Blade (Liner Lock)

To safely close the blade:

1. Hold the knife firmly by the handle.
2. Locate the liner lock, which is a metal strip inside the handle that has moved behind the blade.
3. With your thumb, push the liner lock sideways (towards the side of the handle) to disengage it from the blade's tang.
4. Once disengaged, carefully fold the blade back into the handle using your other hand or by gently pushing the spine of the blade against a firm surface, ensuring your fingers are clear of the closing path.

Image 5.2: A detailed view of the liner lock mechanism, showing its position when the blade is open and locked.

5.3. Using the Pocket Clip

The deep-carry pocket clip allows for secure and discreet carrying. Simply slide the clip over the edge of your pocket or belt. The clip is designed to hold the knife low in your pocket for minimal visibility.

Image 5.3: The CRKT LCK+ knife in its closed position, highlighting the deep-carry pocket clip for secure storage.

6. Maintenance

Proper maintenance ensures the longevity and performance of your knife.

• Cleaning: The manufacturer recommends hand washing only. After use, especially with corrosive materials, clean the blade and handle with mild soap and water. Dry thoroughly immediately to prevent rust.
• Lubrication: Periodically apply a small amount of knife-specific lubricant to the pivot area to maintain smooth action.
• Sharpening: Maintain the blade's edge with appropriate sharpening tools. If you are unsure, seek professional sharpening services.
• Storage: Store your knife in a dry environment to prevent corrosion.

7. Troubleshooting

• Blade Stiffness: If the blade feels stiff when opening or closing, it may require cleaning and lubrication of the pivot area. Ensure no debris is obstructing the mechanism.
• Liner Lock Not Engaging: Check for debris in the lock mechanism. If the issue persists, discontinue use and contact CRKT customer support.
• Blade Play: If there is excessive side-to-side movement in the blade when open, the pivot screw may need tightening. Use appropriate tools and do not overtighten.

8. Specifications

9. Warranty and Support

CRKT stands behind the quality of its products. For information regarding warranty coverage, repairs, or customer support, please refer to the official CRKT website or contact their customer service directly. Keep your purchase receipt as proof of ownership.