Description
Sunex Tools 3/4 Ton Quick Adjust Underhoist Stand (6813) is a professional-grade support tool designed for automotive shops using two-post lifts. It provides a stable, adjustable vertical platform for supporting vehicle components during service, such as transmissions, exhaust systems, or suspension assemblies. Engineered to reduce physical strain and improve precision, this stand combines a mechanical screw system with a quick-adjust locking pin for efficient height control.
Key Features and Benefits:
- Dual Adjustment System: Features a 5-interval locking pin for rapid height setup and a bearing-mounted spin handle for precise load contact.
- High Load Capacity: Supports up to 1,500 lbs, suitable for heavy automotive components.
- Self-Locking Screw: ACME¨ threaded screw resists backing or slipping under load, maintaining consistent height.
- Contoured Support Saddle: 2.5Ó x 5.2Ó cradle securely holds flat or rounded components.
- Workshop Maneuverability: Lightweight design allows one-handed transport across the shop floor.
- Stable Footprint: 12-inch circular base evenly distributes weight to prevent tipping or rocking.
Specifications:
- Load Capacity: 1,500 lbs
- Minimum Height: 57 in
- Maximum Height: 78 in
- Base Diameter: 12 in
- Saddle Size: 2.5Ó x 5.2Ó
- Adjustment Intervals: 5
- Thread Type: ACME¨ Threaded Screw
- Included in Box:
- 1 Sunex 6813 Underhoist Stand
- 1 Locking Pin
- 1 Bearing-Mounted Spin Handle Assembly
How to Use:
- Position the Stand: Place the stand on a flat, level concrete floor beneath the component or vehicle point to be supported.
- Rough Height Adjustment: Pull the inner tube upward and align the nearest hole with the stand body.
- Secure the Pin: Insert the locking pin through the interval hole to lock the primary height.
- Final Contact: Rotate the bearing-mounted spin handle clockwise to raise the ACME¨ screw until the saddle makes firm contact with the part.
- Confirm Stability: Ensure the load is centered on the saddle and the base is flush with the floor.
- Perform Service: Complete the repair or installation while the stand supports the component.
- Lowering: Rotate the spin handle counter-clockwise to release tension and remove the stand once the component is secured.
Benefits of Using Sunex Tools 3/4 Ton Quick Adjust Underhoist Stand (6813):
- Enhanced Shop Safety: Provides secure support for vehicle components, reducing the risk of falls or accidents.
- Time Savings: Quick-adjust pin allows rapid height setup without manually turning the screw through the entire range.
- Reduced Physical Strain: Lightweight construction and mechanical screw system decrease fatigue during component positioning.
- Precision Alignment: Fine-adjustment spin handle enables micro-movements needed for exact bolt-hole alignment.
- Long-Term Reliability: Mechanical design avoids maintenance issues associated with hydraulic systems.
Features:
- Bearing-Mounted Spin Handle: Low-friction height fine-tuning.
- Self-Locking ACME¨ Screw: Secure, creep-free support under load.
- 5-Position Height Adjustment Pin: Rapid deployment and setup.
- 1,500 lb Capacity: Ideal for transmissions, fuel tanks, and exhaust systems.
- 12″ Diameter Base: Provides a stable, low-profile footprint.
- 2.5″ x 5.2″ Contoured Saddle: Accommodates flat and rounded components.
- High-Visibility Red Steel Construction: Durable and easy to spot in the shop.
- Manual Mechanical Operation: Consistent performance in all shop temperatures without fluid maintenance.






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