The Strongway 15 Ton Screw-Type Support Jack (Item# 46246) is a mechanical bottle screw jack designed for lifting and precisely positioning a variety of loads. It can operate at full capacity in tension or compression, whether upright or inverted. This jack offers increased precision and travel speed, making it suitable for tasks requiring rigorous detail or load stabilization. Its applications include house leveling, bridge stabilization, machinery, oil field maintenance, and steel fabrication and construction. It can also function as an external locking device to hold position. The multi-axis, cleated saddle positions are designed to accommodate and assist in leveling the load. The product is tested for reliability and safety to meet ASME B30.1 Standards.
Important Technical Specifications:
- Item#: 46246
- Capacity: 15 Ton
- Bar Hole Size: 13/16 inch
- Min. Height: 14 inch
- Lifting Range: 7-7/8 inch
- Max. Height: 21-7/8 inch
- Net Weight: 23.13 lbs.
- Safe Operating Temperature: 40°F – 105°F (4°C - 41°C)
Usage Features:
The jack is operated by placing it on a hard and level surface beneath the load. The lifting screw is turned counter-clockwise by hand until the adjustable floating head support makes contact with the surface. A steel handle-turning bar (not supplied) is then inserted into the hole under the lifting support and rotated counter-clockwise to raise the lifting support to the desired height. It is crucial not to exceed the rated load of the mechanical jack.
General Safety Rules and Jacking Practices:
- Read and Understand: Users must carefully read and understand all assembly and operation instructions before use.
- Qualified Operators: Only persons who have read and thoroughly understand this manual should operate or assemble the jack.
- No Modifications: The jack should not be modified in any way, as unauthorized alterations can impair function, safety, and equipment life.
- Inspect Before Use: Always check for damaged or worn parts before using the jack. Replace or repair damaged parts immediately.
- Proper Storage: Store the jack in a secure place out of reach of children when not in use. Inspect it for good working condition before storage and re-use.
- Clear Work Area: Ensure the work area is free of hazards.
- Supervision: Keep children away from the operating jack.
- Operator Restrictions: Not for use by children, people with reduced mental capacity, or those under the influence of drugs and alcohol.
- Surface Requirements: Always ensure the jack is used on a hard, flat, and level surface.
- Load Capacity: Never lift any load over the rated capacity.
- Load Centering: Always center the jack under the load.
- Load Stability: Never allow the load to tilt on the jack, as this can cause the jack to kick out, leading to injury or the load falling.
- Multiple Jacks: When using multiple jacks, ensure each has the same lifting capacity relative to the total load.
- Safety Stop: Never force the lifting screw past its safety stop to prevent personal injury and property damage.
- Lubrication: Keep the screw lubricated for ease of operation and to prevent rust.
- Vehicle Support: Support only on areas specified by the vehicle manufacturer.
- Attachments: Use only attachments and/or adapters supplied by the manufacturer.
- Wheel Chocks: Use wheel chocks or other blocking devices on opposing wheels before using the jack.
- Damage: Do not use if damaged in any way.
- Crush Hazard: Personnel must not place any part of their body between the jack and the load during lifting/lowering, or under a load supported by a jack or blocking.
- Handle Safety: Do not straddle the jack handle. Ensure sufficient swing area to avoid pinch points. The operator should have firm footing and handle control. Avoid placing the head in the swing arc of the handle, as ratchet jack handles can kick back.
- Unattended Loads: A load shall not be left unattended while supported by jacks; blocking should be used.
- Load Assessment: Determine load weight and center of gravity before selecting and placing jacks and blocking.
- Base Support: The jack's base should be supported by a hard, level surface (concrete, steel, or wood blocking) capable of supporting the load.
- Load Point Force: The force of the jack's load point should be placed or distributed to prevent damage to the load.
- Handle Specifications: Use a jack handle of the size and length specified by the manufacturer. Never use an over-length handle, extender, or "cheater pipe."
- Handle Engagement: Ensure adequate range of motion for the jack handle to fully engage the operating linkage.
Communication and Synchronized Lifts:
- Continuous Communication: Personnel involved in lift operations must maintain continuous communication. All movements stop if communication is disrupted.
- Signals: Signals to the jack operator should follow ASME B30.1. Special signals must be agreed upon beforehand. Signals must be discernible and audible.
- Stop Signal: Jack operators must obey any stop signal.
- Uneven Lifting: In synchronized lifts, uneven raising/lowering can cause cross-loading, instability, and overloading.
- Qualified Person: Complex lifts with multiple points require analysis and instruction from a qualified person.
- Identical Jacks: When using multiple ratchet jacks, ensure they are identical in type (manufacturer, make, model, capacity) or lifting rate for even loading.
- Unsynchronized Lowering: Can overload a jack, causing kickback or load instability.
Blocking:
- Arresting Device: Blocking should follow the load up or down to act as an arresting device if the load falls.
- Support: Wedges or shims should ensure the load is completely supported at its blocking points.
- Dimensions: Blocking must be of sufficient thickness, width, and length to prevent shifting, toppling, or excessive settlement.
- Strength: Blocking must be strong enough to prevent crushing, bending, or shear failure, and to adequately transmit the load's weight to the supporting surface.
Horizontal Jacking:
- Special Attention: Applications where jacks are used horizontally require special attention.
- Compliance: Horizontal jacking must comply with Operating Practices.
- Plan: A plan must be developed and communicated, considering load weight, friction, angle, stability, obstructions, jack base/support, load contact, handle clearance, center of gravity, and personnel safety.
- Base Orientation: The jack's base should be perpendicular to the direction of load movement.
- Parallel Lines of Force: If multiple jacks are used, maintain parallel lines of force to prevent side loading.
Maintenance Features:
- Regular Inspection: The general condition of the jack should be examined before each use.
- Repairs: Maintain the jack in good repair; necessary repairs should be made by qualified service personnel.
- No Maintenance Under Load: Never perform maintenance while the equipment is under a load.
- Cleaning: All moving parts should be regularly cleaned.
- Lubrication: Lubricate parts as required by the manufacturer's specifications, using the specified type of lubricant. Lubrication systems should be checked for proper operation.
- Additional Maintenance: Complete any additional maintenance according to manufacturer instructions.
- Pre-Use Inspection: Inspect for damage, wear, broken or missing parts (e.g., pins), and ensure all components function. Check climbing pins for wear/damage and ensure nothing blocks holes.
- Binding: If the product binds under a load, use equipment with equal or greater capacity to lower the load safely. After un-binding, clean, lubricate, and test the equipment. Binding can be caused by rust, dirt, or worn parts. If binding continues after cleaning and lubrication, contact Customer Service.
- Rust Prevention: Check for any signs of rust or corrosion.
- Cleanliness: Keep the equipment clean and look under and behind lifting points for signs of rust or visible debris.
- Self-Lubricating: The jack is not self-lubricating and will not operate safely without proper lubrication.
Storing the Jack:
- Location: Store in a dry location, indoors.
- Secure Area: Mechanical jacks should be stored in an area where they will not be subjected to damage.
- Temperature: If extreme temperatures or chemically active/abrasive environments are involved, guidance should be provided.
- Temperature Range: Mechanical jacks are designed to be used at temperatures above 140°F (60°C) or below -20°F (-29°C).
- Chemically Active Environments: The strength and operation of mechanical jacks can be affected by chemically active environments such as caustic or acid substances or fumes. The jack manufacturer or a qualified person should be consulted.
- Other Environments: Internal workings of jacks can be affected by high moisture, gravel, sand, silt, grit, or other dust-laden air. Jacks subject to these environments should have their inner components frequently cleaned, inspected, and lubricated.
- Lubrication for Storage: If the jack is stored outdoors, ensure to lubricate all parts before and after use to ensure the jack stays in good working condition.
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