BLACKHAWK! B6350 Fast Lift Service Jack Instruction Manual

1. Product Overview

The BLACKHAWK! B6350 Fast Lift Service Jack is a robust hydraulic floor jack designed for lifting vehicles with a capacity of 3.5 tons (7,000 lbs). It incorporates a unique fast lift technology to quickly reach the jacking point without a load. Constructed from heavy-duty steel, this jack ensures durability and safe operation. Key features include a swivel saddle for easy positioning, a built-in internal safety valve, and a bypass device to prevent over-pumping damage.

Figure 1.1: The BLACKHAWK! B6350 Fast Lift Service Jack in its operational state.

2. Safety Information

WARNING: Read, understand, and follow all instructions and warnings before using this product. Failure to do so may result in property damage, personal injury, or death.

• DO NOT exceed the rated capacity of 3.5 tons (7,000 lbs).
• This hydraulic jack is designed for lifting purposes only. NEVER use it to support a vehicle.
• Immediately after lifting, support the vehicle with appropriately rated jack stands.
• Ensure the jack is placed on a hard, level surface capable of supporting the load.
• Center the load on the saddle. Off-center loads can cause instability.
• Keep hands and feet clear of the jack's moving parts and the vehicle during lifting and lowering.
• Do not modify the jack or use it for purposes other than its intended design.
• Wear appropriate safety gear, including eye protection.

Figure 2.1: Important warning labels and "DO NOT ADJUST" markings on the jack mechanism.

3. Components and Features

Familiarize yourself with the main components and features of your BLACKHAWK! B6350 Service Jack:

• Lifting Arm: The primary component that raises and lowers the vehicle.
• Swivel Saddle: A rotating pad on top of the lifting arm designed to securely contact the vehicle's jacking point. It allows for easy positioning and enhances user safety.
• Handle: Used for pumping the jack to lift and for controlling the lowering mechanism. Features a foam grip for comfort.
• Release Valve: Integrated into the handle mechanism, controls the lowering speed of the jack.
• Wheels: Heavy-duty steel wheels for easy maneuverability.
• Fast Lift Technology: Allows the jack to quickly raise the saddle to the jacking point with minimal pumps when unloaded.
• Internal Safety Valve: Prevents overloading the jack beyond its rated capacity.
• Bypass Device: Protects the hydraulic system from damage due to over-pumping.
• Rugged Universal Joint: Provides precise control over the lowering process.

Figure 3.1: The swivel saddle, designed for secure vehicle contact.

Figure 3.2: Detail of the heavy-duty lifting mechanism and wheels.

Figure 3.3: The jack handle featuring a protective foam grip.

4. Setup

1. Unpacking: Carefully remove the jack from its packaging. Inspect for any shipping damage.
2. Handle Assembly: Insert the handle into the handle socket. Secure it by tightening the set screw or bolt located on the side of the socket. Ensure the handle is firmly seated.
3. Purging Air from Hydraulic System: Before first use, or if the jack has been stored for an extended period, it may be necessary to purge air from the hydraulic system.
   • Turn the handle counter-clockwise to open the release valve.
   • Pump the handle fully up and down approximately 10-15 times.
   • Turn the handle clockwise to close the release valve.
   • Test the jack by lifting it to its full height and then lowering it. Repeat if necessary until smooth operation is achieved.
4. Check Hydraulic Fluid Level: Locate the fill plug (often a Phillips screw) on the top of the jack, usually under a red pop-off plate near the handle. Remove the plug and check the fluid level. The fluid should be near the top of the reservoir. Add hydraulic jack oil if needed, then replace the plug.

Figure 4.1: The jack with its handle fully assembled and extended.

5. Operating Instructions

5.1. Lifting a Vehicle

1. Prepare the Vehicle: Park the vehicle on a hard, level surface. Engage the parking brake and block the wheels that will remain on the ground.
2. Position the Jack: Locate the manufacturer-recommended jacking points on the vehicle. Position the jack so the swivel saddle is directly under the jacking point. Ensure the jack is stable.
3. Close Release Valve: Turn the handle clockwise until the release valve is firmly closed. Do not overtighten.
4. Lift the Vehicle: Pump the handle up and down to raise the vehicle. The fast lift feature will quickly bring the saddle to the contact point, then transition to a slower lift for controlled raising. Lift the vehicle only high enough to place jack stands.
5. Secure with Jack Stands: Once the vehicle is at the desired height, immediately place appropriately rated jack stands under the vehicle's designated support points. Ensure the jack stands are stable and properly engaged.
6. Slightly Lower onto Jack Stands: Slowly turn the handle counter-clockwise to open the release valve, allowing the vehicle to gently rest onto the jack stands. Once the vehicle is fully supported by the jack stands, remove the hydraulic jack.

5.2. Lowering a Vehicle

1. Prepare for Lowering: Ensure the area around the vehicle is clear.
2. Raise Slightly: Position the jack under the jacking point again and lift the vehicle just enough to clear the jack stands.
3. Remove Jack Stands: Carefully remove the jack stands from under the vehicle.
4. Lower Vehicle: Slowly turn the handle counter-clockwise to open the release valve. Control the lowering speed by adjusting how much you open the valve. Lower the vehicle completely to the ground.
5. Remove Jack: Once the vehicle is fully on the ground, remove the jack.

6. Maintenance

• Lubrication: Periodically lubricate all moving parts with light machine oil.
• Hydraulic Fluid: Check the hydraulic fluid level every three months or as needed. Use only high-quality hydraulic jack oil. Do not use brake fluid or other fluids, as this can damage the seals.
• Cleaning: Keep the jack clean from dirt, grease, and corrosive materials.
• Storage: Store the jack in a dry, protected area with the ram fully lowered.
• Inspection: Before each use, inspect the jack for any signs of damage, leaks, or worn parts. Do not use a damaged jack.

7. Troubleshooting

8. Specifications

Note: The maximum lifting height of 4 inches listed in some product specifications appears to be an error. Typical floor jacks of this type have a much greater lift range, with users reporting approximately 22 inches.

9. Warranty and Support

For warranty information, technical support, or to inquire about replacement parts, please contact BLACKHAWK! customer service. Refer to the product packaging or the official BLACKHAWK! website for the most current contact details.

When contacting support, please have your model number (B6350) and purchase information readily available.