OTC UA22 22-Ton Under Axle Jack with Air Assist User Manual

1. Safety Information

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Always read and understand all safety warnings and instructions before operating this equipment.

• Always wear appropriate personal protective equipment, including safety glasses, when operating the jack.
• Ensure the jack is placed on a hard, level surface capable of supporting the load.
• Never exceed the rated capacity of 22 tons.
• Use appropriate jack stands to support the vehicle immediately after lifting. Do not rely solely on the jack for support.
• Keep hands and feet clear of moving parts and the area under the load.
• Ensure the air supply pressure is within the specified range of 90-145 PSI.
• Do not modify the jack or use it for purposes other than its intended design.
• Inspect the jack for damage or leaks before each use. Do not use if damaged.

2. Product Overview

The OTC UA22 22-Ton Under Axle Jack is designed for heavy-duty lifting applications, featuring air-assist operation and a self-retracting ram. Its robust construction and maneuverability make it suitable for various vehicle service environments.

Figure 1: OTC UA22 22-Ton Under Axle Jack. This image displays the complete jack assembly, including the blue main body, long T-handle, large rubber-tired steel wheels, and the various saddle attachments.

2.1. Key Features

• 22-Ton Capacity: Capable of lifting heavy loads.
• Air-Assist Operation: Facilitates easy lifting with pneumatic power.
• Self-Retracting, Spring Return Ram: Ensures quick and efficient lowering.
• Long T-Handle (47-1/4 in.): Allows for easy positioning under vehicles with long overhangs.
• Large Rubber-Tired Steel Wheels: Provides maneuverability on various terrains.
• Multiple Saddle Attachments: Includes 3/4 in., 1-15/16 in., and 3-7/8 in. saddles for varied lifting heights.
• Durable Construction: Welded hydraulic pump and cylinder, chrome-plated ram, and wiper seals for longevity and leak prevention.

2.2. Package Contents

• OTC UA22 22-Ton Under Axle Jack (Service Jack)
• 3/4 inch Saddle Attachment
• 1-15/16 inch Saddle Attachment
• 3-7/8 inch Saddle Attachment

3. Setup

3.1. Initial Assembly

1. Unpack all components and verify against the package contents list.
2. Attach the T-handle to the jack body. Ensure it is securely fastened according to the manufacturer's instructions (refer to any included diagrams or specific handle attachment mechanisms).
3. Select the appropriate saddle attachment (3/4 in., 1-15/16 in., or 3-7/8 in.) based on the required lifting height and place it securely on the ram.

3.2. Air Supply Connection

1. Connect a compressed air line to the air inlet fitting on the jack.
2. Ensure the air supply pressure is regulated between 90-145 PSI. Exceeding this range can damage the jack.
3. Check all connections for leaks before operation.

4. Operating Instructions

4.1. Positioning the Jack

1. Ensure the vehicle is on a firm, level surface and the parking brake is engaged.
2. Using the long T-handle, maneuver the jack under the vehicle to the designated lifting point. The 47-1/4 inch T-handle allows for positioning without crawling under the vehicle.
3. Verify that the saddle is centered and securely positioned under the vehicle's lifting point.

4.2. Lifting a Vehicle

1. With the air supply connected and regulated, activate the lifting mechanism. This is typically done by pulling the T-handle or engaging a lever on the handle.
2. The air-assist feature will rapidly raise the ram. Continue lifting until the desired height is reached, ensuring the vehicle remains stable.
3. Once the vehicle is lifted, immediately place appropriately rated jack stands under the vehicle's frame or designated support points.
4. Slowly lower the jack until the vehicle rests securely on the jack stands.

4.3. Lowering a Vehicle

1. Ensure the area around and under the vehicle is clear of personnel and obstructions.
2. Slightly raise the vehicle with the jack to remove the load from the jack stands.
3. Remove the jack stands.
4. Slowly release the pressure to lower the jack. The self-retracting, spring return ram will facilitate a controlled descent.
5. Once the vehicle is fully lowered, remove the jack.

5. Maintenance

• Regular Inspection: Before each use, inspect the jack for any signs of damage, wear, or leaks. Pay close attention to hydraulic hoses, fittings, and the ram.
• Cleaning: Keep the jack clean and free of dirt, grease, and debris. Wipe down the chrome-plated ram to prevent rust.
• Hydraulic Fluid: Check the hydraulic fluid level periodically. Refer to the manufacturer's specifications for the correct type of hydraulic fluid and filling procedures.
• Wiper Seals: The integrated wiper seals protect the hydraulic system from contaminants. Ensure they are intact and functioning correctly.
• Storage: Store the jack in a clean, dry environment when not in use.

6. Troubleshooting

For issues not listed here or if solutions do not resolve the problem, contact OTC customer support.

7. Specifications

8. Warranty and Support

OTC products are designed for durability and performance. While specific warranty details may vary, OTC generally provides support for its products. For warranty claims, technical assistance, or replacement parts, please contact OTC customer support directly.

• Customer Support: Refer to the official OTC website or product packaging for the most current contact information.
• Returns: This product may be eligible for 30-day easy returns through the retailer. Please check the retailer's return policy for details.
• Protection Plans: Extended protection plans may be available for purchase separately.