AUTOOL AST609 Pulsating Brake Fluid Bleeder User Manual

Safety Information

Before operating the brake maintenance device, please read this manual and the safety instructions thoroughly. Keep the operator's manual close to the device. Inform the user about correct safety and handling procedures.

For Your Safety

This manual describes the operation and use for the brake maintenance device in the PRO 1 series. Equipment may differ between models. Observe notes and control arrangements.

Work Performed Incorrectly Can Lead to Injury or Property Damage!

• The brake maintenance device should only be operated by trained persons. Use by unauthorized persons is prohibited.

Brake Fluids Are Toxic and Can Lead to Serious Injury!

• Avoid all contact with brake fluid.
• Wear safety goggles to minimize the risk of injury from splashing.
• Wear suitable, protective gloves to minimize the risk of skin contact.
• In case of skin contact with brake fluid, wash off immediately with water.
• Remove contaminated clothing.
• Do not carry any rags or anything else that has been in contact with brake fluid in your clothes.

General Safety Precautions

• Before any work is performed on the brake maintenance device, disconnect the power cord and plug.
• Only plug the brake maintenance device in when it is turned off.
• Do not make design changes to the brake maintenance device.
• Before each use, check the device, its hoses, cables, and connectors. If there is any damage, do not use the device. Repairs must be carried out by a specialist. Never open the device.
• The brake maintenance device must not be damp and should not be operated in a humid environment.

Proper Usage

The brake maintenance device is to be used exclusively for filling and draining brake fluid for brakes and clutches on motor vehicles. Any other use is considered beyond the device's intended purpose and is prohibited.

Foreseeable Misuse

Operation with liquids other than brake fluid can damage the device and is prohibited. The manufacturer is not liable for any damage resulting from misuse. Any risk is carried solely by the user/operator.

Operating Principle

Brake fluid is taken from its container by a pump operating at up to 3.0 bar pressure and is continuously pumped into the brake fluid reservoir. Individual wheel brake cylinders can then be drained of their used brake fluid until new brake fluid comes through. This avoids regular emptying and filling operations, and also prevents water absorption in the brake fluid. The pump is equipped with pressure monitoring; if it cannot build pressure or pulls in air, it switches off automatically.

Device Schematic

The device has the following labeled components:

• 1 - Output pipe
• 2 - Pressure gauge
• 3 - Standard mode selector
• 4 - Power indicator light
• 5 - Switch-ON button
• 6 - Fast mode selector
• 7 - Working indicator light
• 8 - Switch-OFF button
• 9 - Connector of Input pipe
• 10 - Power switch
• 11 - Power interface
• 12 - Connector of Output pipe

An adapter (various versions available) is used to connect to the brake fluid reservoir, but is not shown in the schematic.

Technical Data

Deployment/Workplace

Install the brake maintenance device on a flat surface. Ensure the filling hose is not under mechanical tension. The area around the device becomes its workplace during startup and operation.

Startup Procedure

The startup procedure involves connecting the device to brake fluid containers and bleeding the device itself. This bleeding must be performed during the initial startup.

1. Observe all safety instructions.
2. Before initial startup, verify that the local voltage matches the rating plate on the device.
3. Position the device on a stable, level surface.
4. Unscrew the lid from the container. If the device does not have an integrated container (e.g., Pro1 Mini), place a container in the holder and secure it.
5. Feed the suction hose and the pressure balance hose down to the base of the container. One line is for suction, the other allows excess pressure to flow back.
6. To bleed the device, do not connect the adapter to the vehicle. Instead, connect it to the filling hose and position it over a collection container.
7. Turn the "ON/OFF" switch ON. Press and hold the "Start" button; the pump will begin delivering brake fluid.
8. Place the adapter over a collection container until brake fluid flows without air bubbles.
9. Turn the "ON/OFF" switch OFF. Wait for the pressure regulator to drop to 0 bar. Remove the adapter.

The device is now ready for use, even if the pressure gauge shows 0 bar. The pressurized side should be free of bubbles.

Operation: Exchanging Brake Fluid

Always follow vehicle manufacturer instructions for maximum filling pressure and specific procedures. Generally, follow manufacturer guidelines for bleeding brake systems.

Factory pressure regulator settings are 1.6-2.0 bar. This prevents deformation of the brake fluid reservoir and leaks. Working pressure can be adjusted up to 3.0 bar.

1. Install the supplied adapter, or the appropriate adapter as per brake fluid reservoir instructions.
2. Connect the filling hose to the installed adapter.
3. Supply power to the device and turn the "ON/OFF" switch ON.
4. Press and hold the "Start" button until the pressure reaches at least 1.0 bar. Adjust working pressure with the pressure regulator as needed.
5. Once pressure is successfully built, release the "Start" button; the device should continue to operate.
6. If pressure is not built, release the "Start" button; the device will stop immediately. Possible causes:
   • Insufficient new brake fluid in the container.
   • Pressure set too low by the pressure regulator.
7. Check that the adapter is correctly seated and tight. If leaks occur, immediately switch off the device and find the cause.
8. Bleed brakes one-by-one, typically starting with the back right and finishing with the front left. Open the valve on the wheel brake cylinder. Catch old fluid in a collection bottle. Close the valve when new, bubble-free fluid flows out.
9. Turn the "ON/OFF" switch OFF to stop the device.
10. Check the pressure gauge to ensure pressure has dropped to 0 bar.

Note: The device usually self-depressurizes. If pressure was regulated lower during refilling, it may not reach 0 bar. To unload remaining pressure, turn the pressure regulator clockwise until the release point is reached after turning off the device.

9. Uncouple the depressurized filling hose from the adapter. Remove the adapter from the brake fluid reservoir.

Important:

After bleeding or exchanging fluid, if the brake/clutch pedal feels too long or "soft", repeat the pedal depression process several times with increasing pressure. If the issue persists, the bleeding procedure needs to be carried out again.

Warranty

The main unit has a 3-year warranty from the date of customer receipt. Accessories have a 1-year warranty.

Warranty Access

• Repair or replacement will be done according to specific fault conditions.
• All replacement parts, accessories, or equipment are guaranteed to be brand new.
• Within 90 days of receipt, if the product is faulty, AUTOOL covers shipping costs and provides free replacement parts upon submission of videos and pictures. After 90 days, the customer bears shipping costs, while AUTOOL provides parts for free.

Warranty Not Covered

• Products purchased through unofficial AUTOOL channels.
• Damage caused by incorrect use, use for other purposes, or human factors.

Company Information & Certifications

Shenzhen AUTOOL TECH. CO., LTD.

Address: Shenhua Innovation Park, Baoan, Shenzhen, China

Website: www.autooltech.com

Email: aftersale@autooltech.com

Phone: +86-400 032 0988 / +86-755-27807580

Certifications: FC, CE, RoHS (Made in China)

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Disclaimer

All information, illustrations, and specifications are subject to change without prior notice. Physical appearance may differ from the manual. While efforts have been made to ensure accuracy, AUTOOL is not responsible for consequences arising from misunderstandings. Contact your dealer or AUTOOL after-service center for any doubts.