AUTOOL AST603

AUTOOL AST603 Brake Bleeder Kit User Manual

Model: AST603

1. Introduction

The AUTOOL AST603 Brake Bleeder Kit is an advanced automotive tool designed for efficient and precise brake fluid replacement. This device features a built-in vacuum pump, allowing for one-person operation and ensuring an air-free filling process. Its adjustable pressure control and durable construction make it suitable for professional garages and DIY enthusiasts alike. This manual provides detailed instructions for the safe and effective use of your AST603 Brake Bleeder Kit.

2. Safety Information

WARNING: Always read and understand all safety warnings and instructions before operating this tool. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.

3. What's in the Box

Upon unpacking, please verify that all components listed below are present and undamaged:

AUTOOL AST603 Brake Bleeder Kit and included accessories

Image: AUTOOL AST603 Brake Bleeder Kit with all components, including the main unit, various hoses, power cable, adapter, and recovery fluid bottle.

AUTOOL AST603 Brake Bleeder Kit Packing List Diagram

Image: Diagram illustrating the main components and their labels: Pressure Gauge, Power Indicator Light, Work Indicator Light, Start Button, Power Switch, Pressure Regulation Knob, Safety Device, Filling Hose, Pressure Balance Hose, Suction Hose, Power Cable, and Rear Base.

4. Setup

  1. Prepare the Work Area:

    • Ensure the vehicle is on a level surface and securely supported.
    • Gather all necessary tools and new brake fluid.
    • Wear appropriate safety gear.
  2. Connect Hoses to Main Unit:

    • Connect the Pressure Balance Hose and Suction Hose to their respective ports on the main unit.
    • Connect the Filling Hose to the designated port on the main unit.
  3. Prepare New Brake Fluid Bottle:

    • Place the new brake fluid reservoir (not included) in the holder of the brake fluid changer.
    • Insert the suction hose and pressure balance hose into the new brake fluid bottle. The suction hose feeds new brake fluid, and the pressure equalization hose returns excess pressure output.
  4. Connect Power:

    • Connect the power cable to the main unit and then to a 110V power outlet.
Setup step 1: Placing hoses into new brake fluid bottle

Image: Step 1 of setup, showing the pressure balance hose and oil suction hose being placed into a new brake fluid bottle.

5. Operating Instructions

Follow these steps for a successful brake fluid exchange:

  1. Initial Purge (Emptying the Device):

    • Before connecting to the vehicle, connect the filling hose to the filler hose and dock it to an old fluid reservoir (or a waste container). Do not install the adapter on the vehicle yet.
    • Turn on the power switch.
    • Press and hold the "START" button. The pump will begin to run.
    • Observe the outlet of the adapter to the old kettle until the brake fluid does not bubble over, indicating air has been purged from the lines.
    • Turn off the power switch and wait for the pressure value to slowly drop to 0 bar. Remove the adapter.
    Steps for emptying the brake bleeder device

    Image: Visual guide for purging the device: 1. Place new fluid reservoir. 2. Insert suction and pressure balance hoses. 3. Connect filling hose to old fluid reservoir. 4. Turn on power and press start. 5. Turn off power and remove adapter.

  2. Connect to Vehicle:

    • Connect the standard adapter to the brake fluid pump on your vehicle.
    • Connect the recovery fluid bottle to the brake wheel cylinder of the wheel you are bleeding.
    Connecting filling hose to brake fluid pump

    Image: Step 2 of operation, showing the filling hose being connected to the brake fluid pump via the adapter fitting.

    Connecting recovery fluid bottle to brake wheel cylinder

    Image: Step 3 of operation, showing the recovery fluid bottle being connected to the brake wheel cylinder.

  3. Adjust Pressure:

    • Use the Pressure Regulation Knob to set the desired working pressure between 0.5 and 2.5 bar. The pressure gauge provides real-time monitoring.
    Adjustable pressure knob and pressure gauge

    Image: Close-up of the adjustable knob and pressure gauge, indicating the pressure range of 0.5-2.5 Bar.

  4. Start Bleeding Process:

    • Turn on the power and press and hold the "START" button to begin the operation.
    • The device will automatically fill and bleed the brake system.
    • Monitor the fluid coming out of the recovery bottle for air bubbles. Continue until only clean, bubble-free fluid is observed.
    • The device features low fluid shutdown protection; it will automatically stop if the new fluid bottle is empty to prevent air from entering the system.
    • It also has high pressure protection, automatically reducing and constantizing pressure if it becomes too high.
    One-person operation of the brake bleeder

    Image: Depicts the AST603 unit with a hand pressing the start button, highlighting its one-person operation capability and air-free filling.

    Fluid shortage and high pressure protection features

    Image: Illustrates the automatic stop feature when brake fluid is insufficient and the automatic pressure reduction for high pressure protection.

  5. Repeat for All Wheels:

    • Repeat the process for each wheel, typically starting with the wheel furthest from the master cylinder and working towards the closest.
    • The device supports replacing two tire fluids at the same time for improved efficiency.
    Faster brake fluid changes with two-wheel replacement

    Image: Shows two recovery bottles connected to two wheels, demonstrating the capability for faster brake fluid changes by replacing fluid on two tires simultaneously.

  6. Completion:

    • Once all wheels are bled, turn off the power switch and disconnect all hoses.
    • Ensure the brake fluid reservoir on the vehicle is filled to the appropriate level.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your AST603 Brake Bleeder Kit:

7. Troubleshooting

ProblemPossible CauseSolution
Device does not power on.No power supply; Power cable not connected; Fuse blown.Check power outlet; Ensure power cable is securely connected; Check and replace fuse if necessary.
No fluid flow or weak suction.Hoses kinked or blocked; Insufficient new brake fluid; Air leak in connections.Check hoses for obstructions; Refill new brake fluid; Tighten all connections.
Pressure not stable or too high/low.Pressure adjustment knob incorrectly set; Internal pump issue.Adjust pressure knob to desired range (0.5-2.5 bar); If problem persists, contact customer support.
Air bubbles continue to appear in fluid.Air entering system through loose connections; Brake system still contains air.Check and tighten all connections, especially at the vehicle's brake caliper; Continue bleeding until no bubbles are seen.

8. Specifications

FeatureDetail
ModelAST603
Power SupplyAC 110V
Working Pressure Range0.5 ~ 2.5 Bar
Maximum Power35W
Output Flow Rate1.6 L/min
Output Pressure0.7 ~ 2.5 Bar
Filling Hose Length3.5m
Low Oil ProtectionSupported
Operating Temperature-10°C ~ 60°C
Storage Temperature-10°C ~ 65°C
Product Weight5.19 kg (approx. 11.44 lbs)
Product Dimensions12 x 12 x 14 inches (approx. 30.5 x 30.5 x 35.6 cm)
Product dimensions and specifications table

Image: Diagram showing the dimensions of the AST603 unit and a table summarizing its technical specifications.

9. Warranty and Support

AUTOOL provides a comprehensive warranty and dedicated customer support for the AST603 Brake Bleeder Kit.

Warranty Information:

This product comes with a Three Years Warranty. In case of any quality problems or defects with your AST603, AUTOOL is committed to providing a new replacement or suitable solutions to ensure customer satisfaction without delay.

Technical Support:

Lifetime technical support is provided for this product. For any technical assistance, operational queries, or troubleshooting guidance, please do not hesitate to contact AUTOOL customer service. We aim to respond to all inquiries within 24 hours.

For support, please refer to the contact information provided on the official AUTOOL website or your purchase documentation.

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