The ESCO Model #20408 Pneu-Tek Impact Driven Tire Demounter is a specialized tool designed for the safe, simple, fast, and economical demounting of tires, particularly suited for agricultural, one-piece grader, loader, forestry, and backhoe tires. This instruction manual provides comprehensive guidance on its operation, emphasizing safety precautions and proper usage.

Function Description:

The primary function of the ESCO #20408 Pneu-Tek Impact Driven Tire Demounter is to facilitate the demounting of tires from their rims. It achieves this through an impact-driven mechanism, utilizing an impact wrench to extend or retract a pulling/pushing foot. The tool is designed to separate the tire bead from the rim, making the demounting process more efficient and less physically demanding than traditional methods. It works by engaging the tire bead and applying controlled force to push it off the rim, first one bead and then the second.

Important Technical Specifications:

Model Number: ESCO #20408
Type: Pneu-Tek Impact Driven Tire Demounter
Size:
- Length: 43 inches (1092 mm)
- Width: 1 1/2 inches (38 mm)
- Max. Retraction Height: 22 inches (559 mm)
- Handle: 4 1/2 inches (114 mm)
Compatibility: Designed for agricultural, one-piece grader, loader, forestry, and backhoe tires.
Power Source: Requires an impact wrench for operation (not included with the tool itself, but implied by "Impact Driven").
Safety Compliance: Users are warned that the product, like all tire tools, should only be used by persons trained according to OSHA Regulations 29CFR 1910.177, titled "Servicing Single-Piece & Multipiece Rim Wheels."
Available Kits: The #20408 model is also available as part of larger kits:
- Model #20414 for Small Tires
- Model #20415 for Large Tires
- Model #20415A for Large Tires

Usage Features:

The demounter's operation involves a multi-step process, emphasizing lubrication and precise tool placement.

Lubrication and Initial Tool Placement:
- Before demounting, both sides of the tire must be generously lubricated. The manual recommends using liquid lubricant to penetrate between the rim and tire bead.
- The tool is inserted between the rim and tire bead by laying it horizontally. Downward pressure with the foot is used to ensure the heel of the pulling foot is below the plane of the rim.
First Bead Demount:
- Once inserted, the tool is brought to an upright position to engage the puller foot between the rim and the inside tire bead.
- An impact wrench is then used in a counter-clockwise manner to begin tool engagement. As the pushing foot approaches the rim, it's crucial to ensure that the plastic protective angle properly engages the rim edge.
- The pulling foot is retracted with the impact wrench while simultaneously pivoting the tool towards the wheel center. This motion continues until the first bead is removed. Users are cautioned against forcing or excessively prying with the tool, instead allowing its natural motion to remove the tire.
- After the first bead is removed, the impact tool is turned in a clockwise motion to reset the pushing arm.
Second Bead Demount:
- For the second bead, the tool is placed at an approximately 45-degree angle and inserted between the second tire bead and the rim.
- Once inserted, the tool is brought to an upright position, ensuring a secure hold on the second bead with the pulling foot.
- The push foot is then extended using an impact wrench in a counter-clockwise motion. As the pushing foot meets the rim, the plastic protective angle must properly engage the rim edge, and the natural motion of the tool should be allowed to rock backward.
- The pushing foot continues to extend with the impact wrench until the tire is completely free of the rim.
- Finally, the tool is returned to its original retracted position.

Maintenance Features:

While the manual does not explicitly detail maintenance procedures for the ESCO #20408 itself, it highlights the broader support services offered by Equipment Supply Co. (ESCO):

Guaranteed 1 Day Turnaround Service: ESCO offers a rapid repair service, aiming to receive, repair, and return products within 24 hours.
Repair/Warranty Service: ESCO guarantees repair/service for 30 days and will pick up products for repair/warranty at the customer's location.
Rental Tools: Rental tools are available.
Repair Capabilities: ESCO repairs a wide range of hydraulic pumps, bead breakers, and cylinders from various brands, including IMT, FEC, Stellar, Blackhawk, OTC, Power Team, Ame Int., and Enerpac.
Authorized Repair & Warranty Centers: A network of over 50+ hydraulic repair facilities across the US & Canada provides quality repair and timely product returns.
Technical Support: Phone support is available by calling 1-800-352-9852.
Factory Repair Service: ESCO maintains an in-house repair facility equipped with necessary tools and machinery, staffed by trained technicians, to ensure quick and affordable repairs for both ESCO products and competitors' products.
Genuine Parts: Repairs are performed with factory parts, and the repair is guaranteed.

The emphasis on professional training (OSHA regulations) and the availability of extensive repair and support services underscore the importance of proper handling and the company's commitment to product longevity and customer satisfaction. The tool's design, with a plastic protective angle, suggests an inherent feature aimed at preventing damage to the rim during operation, which could be considered a form of built-in maintenance or protective feature.

Esco 20408 - Final Tool Retraction

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