Introduction
Thank you for choosing the KNIPEX Cobra QuickSet Water Pump Pliers. This manual provides essential information for the safe and effective use, maintenance, and care of your new tool. Please read these instructions carefully before first use and keep them for future reference.

Figure 1: KNIPEX Cobra QuickSet Water Pump Pliers 87 22 250. These pliers feature a robust design with red and blue soft-grip handles, designed for secure gripping and quick adjustment.
Setup
The KNIPEX Cobra QuickSet Pliers are ready for immediate use out of the box. No assembly is required. Familiarize yourself with the adjustment mechanism before applying the tool to a workpiece.
Operating Instructions
1. Adjusting the Pliers (QuickSet Function)
The Cobra QuickSet pliers combine the proven, reliable locking of the hinge bolt with an additional push function for fast adjustment directly on the workpiece.
- Initial Position: Hold the pliers with the jaws open.
- Positioning: Place the upper jaw onto the workpiece.
- Quick Adjustment: Push the lower jaw against the workpiece. The hinge bolt will engage automatically, securing the pliers in the correct position.
- Fine Adjustment: For minor adjustments, use the push-button mechanism on the side of the pliers to release the hinge bolt and slide the jaws to the desired opening. Release the button to lock the jaws in place.
Video 1: Demonstration of the KNIPEX Cobra QuickSet Pliers' adjustment mechanism. This video, provided by the seller, illustrates the push-button adjustment and quick-set function on a similar Cobra model (87 21 250), showcasing the ease of use for various workpiece sizes.
2. Utilizing the Self-Locking Effect
The unique jaw geometry of the Cobra QuickSet pliers allows for a self-locking effect on pipes and nuts. This means the pliers will grip the workpiece securely without requiring constant pressure on the handles, reducing hand fatigue.
- Engage: Once adjusted to the correct size, apply firm pressure to the handles to engage the jaws with the workpiece.
- Grip: The specially hardened teeth will bite into the workpiece, creating a strong, self-locking grip.
- Operation: You can then apply turning force without needing to continuously squeeze the handles.

Figure 2: KNIPEX Cobra QuickSet Pliers gripping a pipe. The image demonstrates the pliers' secure hold on a plumbing fixture, highlighting the self-locking feature that allows for efficient work.
Maintenance
- Cleaning: After each use, wipe the pliers clean with a dry cloth to remove dirt, grease, or debris.
- Lubrication: Periodically apply a light machine oil to the hinge and adjustment mechanism to ensure smooth operation and prevent corrosion.
- Storage: Store the pliers in a dry environment to prevent rust.
- Inspection: Regularly inspect the jaws for wear or damage. Replace the tool if the teeth are excessively worn or if any structural damage is observed.

Figure 3: Side view of the KNIPEX Cobra QuickSet Pliers. This image provides a clear view of the tool's construction, including the adjustment mechanism and the durable handle material.
Troubleshooting
- Pliers not gripping securely: Ensure the jaws are clean and free of debris. Verify that the pliers are adjusted to the correct size for the workpiece. Excessive wear on the jaw teeth may require tool replacement.
- Adjustment mechanism stiff: Apply a small amount of lubricant to the hinge and adjustment slide. If stiffness persists, clean any accumulated grime from the mechanism.
- Rust appearing: This indicates improper storage. Clean any rust with a wire brush and apply a rust-inhibiting oil. Store in a dry place.
Specifications
| Feature | Detail |
|---|---|
| Manufacturer | KNIPEX |
| Part Number | 87 22 250 |
| Item Model Number | 87 02 250 |
| Product Dimensions | 24.99 x 5 x 1.8 cm; 600.1 g |
| Colour | Red/Blue |
| Material | Alloy Steel (Jaws), Polyvinyl Chloride (Handle) |
| Measurement System | Metric |
| Certification | DIN ISO 8976 |
| Special Features | Combines tried and tested secure locking of the gel, QuickSet function |
| Usage | Water pump, general gripping |
| Item Weight | 600 g |
Warranty
This product is covered by a Manufacturer Warranty. For specific details regarding warranty coverage, terms, and conditions, please refer to the documentation included with your purchase or visit the official KNIPEX website.
Support
For further assistance, technical support, or inquiries about your KNIPEX Cobra QuickSet Water Pump Pliers, please contact KNIPEX customer service through their official website or authorized distributors. Always refer to the model number (87 22 250) when seeking support.





