Using a dual wheel separator involves carefully positioning the tool between a stubborn inner and outer dual wheel assembly, and then applying controlled force to create separation for removal or maintenance. This specialized tool is essential for safely dislodging wheels that have become stuck due to corrosion, dirt, or long-term compression.
Understanding the Dual Wheel Separator
A dual wheel separator, such as the Ken-Tool's New Dual Wheel Separator #34549 referenced in the provided information, is specifically designed to tackle the common problem of "frozen" dual wheels on commercial vehicles. These wheels often bond together at their mating surfaces due to rust, dirt, or simply being compressed together for extended periods. Manually separating them can be extremely difficult and unsafe. The separator provides the mechanical leverage needed to push them apart systematically and safely.
Step-by-Step Guide: Using a Dual Wheel Separator
While the overall wheel removal process involves several steps, the core application of the wheel separator focuses on two primary actions: positioning and applying force.
Preparation & Safety
Before engaging the wheel separator, ensure the vehicle is securely supported and safe to work on.
- Secure the Vehicle: Park on a level surface, engage the parking brake, and use wheel chocks to prevent any movement.
- Lift and Support: Safely lift the vehicle using a jack and immediately place it on sturdy jack stands, ensuring maximum stability.
- Loosen Lug Nuts: Loosen (but do not remove) all lug nuts on the dual wheel assembly. This will relieve some pressure and allow for easier separation once the wheels are pushed apart.
- PPE: Always wear appropriate personal protective equipment, including safety glasses and gloves.
- Lubrication: Applying a penetrating lubricant to the mating surfaces of the inner and outer wheels can significantly aid the separation process by breaking down rust and grime.
Positioning the Separator ("The Pusher")
The first critical step in using a dual wheel separator involves correctly seating the tool's main contact point.
- Locate the Pusher: Identify the component of the separator referred to as "The Pusher." This part typically has a grooved or shaped end designed to fit around a specific part of the wheel.
- Secure Placement: As per the usage instructions for a dual wheel separator: "Be sure to place the groove in The Pusher over the rim flange of the inner wheel." This ensures the tool has a firm, secure anchor against the inner wheel, allowing it to exert force against the outer wheel effectively.
Applying Separating Force ("The Pooler" & Forcing Screw)
Once "The Pusher" is correctly positioned, the next step is to apply the separating force.
- Engage The Pooler: The separator's design includes another component, often referred to as "The Pooler," which will push against the outer wheel.
- Tighten the Forcing Screw: The instructions specify: "Then turn the forcing screw by hand to tighten the Pooler against the edge of the rim opening of the outer wheel."
- Gradual Pressure: Continue to turn the forcing screw, gradually increasing the pressure. You may hear creaking or popping sounds as the wheels begin to break free from each other. Avoid using excessive force too quickly, as this can damage the wheels or the tool.
- Check Progress: Periodically check the separation progress. If the wheels are extremely stubborn, you might need to apply more penetrating oil or even slightly adjust the separator's position.
Completing the Separation
Once sufficient separation has been achieved, the remaining steps involve fully removing the wheels.
- Remove Lug Nuts: Once there is a noticeable gap between the wheels, fully remove all the lug nuts that were previously loosened.
- Remove Wheels: Carefully pull the separated wheels off the hub. The inner wheel will typically come off first, followed by the outer wheel (or vice-versa, depending on the tool's specific action and the wheel type).
Key Components of a Dual Wheel Separator
To clarify the parts mentioned in the instructions, here's a brief breakdown:
| Component | Function | How It's Used |
|---|---|---|
| The Pusher | Provides the anchor point against the inner dual wheel. | Placed "over the rim flange of the inner wheel." |
| The Pooler | The component that exerts force directly against the outer dual wheel. | Tightened "against the edge of the rim opening of the outer" wheel. |
| Forcing Screw | The primary mechanism to apply and increase pressure, pushing the two components apart. | Turned by hand (or with a wrench, depending on design) to "tighten the Pooler against the edge of the rim." |
Key Considerations for Effective Wheel Separation
- Patience is Key: Never rush the process. Gradual, consistent pressure is more effective and safer than sudden, forceful attempts.
- Cleanliness: While the separator helps with stubborn wheels, regularly cleaning the mating surfaces of dual wheels during maintenance can prevent future sticking.
- Inspect Components: Before and after use, inspect the wheel separator tool for any signs of wear or damage to ensure its safe operation.
