AUTOOL AST603 Brake Fluid Bleeder User Manual

Copyright Information

All rights reserved by AUTOOL TECH. CO., LTD. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of AUTOOL. The information contained herein is designed only for the use of this unit. AUTOOL is not responsible for any use of this information as applied to other units.

Neither AUTOOL nor its affiliates shall be liable to the purchaser of this unit or third parties for damages, losses, costs, or expenses incurred by the purchaser or third parties as a result of: accident, misuse, or abuse of this unit, or unauthorized modifications, repairs, or alterations to this unit, or failure to strictly comply with AUTOOL operating and maintenance instructions.

AUTOOL shall not be liable for any damages or problems arising from the use of any options or any consumable products other than those designated as original AUTOOL products or AUTOOL approved products by AUTOOL.

Other product names used herein are for identification purposes only and may be trademarks of their respective owners. AUTOOL disclaims any and all rights in those marks.

Manuals are either trademarks, registered trademarks, service marks, domain names, logos, company names or are otherwise the property of AUTOOL or its affiliates. In countries where any of the AUTOOL trademarks, service marks, domain names, logos and company names are not registered, AUTOOL claims other rights associated with unregistered trademarks, service marks, domain names, logos, and company names. Other products or company names referred to in this manual may be trademarks of their respective owners. You may not use any trademark, service mark, domain name, logo, or company name of AUTOOL or any third party without permission from the owner of the applicable trademark, service mark, domain name, logo, or company name. You may contact AUTOOL by visiting AUTOOL at https://www.autooltech.com, or writing to aftersale@autooltech.com, to request written permission to use materials on this manual for purposes or for all other questions relating to this manual.

Safety Rules

General Safety Rules

Always keep this user manual with the machine.

Before using this product, read all the operational instructions in this manual. Failure to follow them may result in electric shock and irritation to skin and eyes.

Each user is responsible for installing and using the equipment according to this user manual. The supplier is not responsible for damage caused by improper use and operation.

This equipment must only be operated by trained and qualified personnel. Do not operate it under the influence of drugs, alcohol, or medication.

This machine is developed for specific applications. The supplier points out that any modification and/or use for any unintended purposes is strictly prohibited.

The supplier assumes no express or implied warranties or liabilities for personal injury or property damage caused by improper use, misuse, or failure to follow safety instructions.

This tool is intended for professional use only. Non-professional operation may result in injury to personnel or damage to tools or workpieces.

Keep out of reach of children.

When operating, ensure nearby personnel or animals maintain a safe distance. Avoid working in rain, water, or damp environments. Keep the work area well-ventilated, dry, clean, and bright.

Handling

Used/damaged equipment must not be disposed of in household waste but must be disposed of in an environmentally friendly manner. Use designated electrical equipment collection points.

Recycled waste oil should be handled as hazardous waste, for example, at pollutant transfer stations.

Electrical Safety Rules

This is a Class I equipment that must only be powered through a power socket with a protective grounding conductor. This connection must not be interrupted at any point (e.g., through extension cords). Any interruption or disconnection of the protective conductor may result in electric shock. Therefore, ensure the equipment/housing is correctly grounded in advance.

Do not twist or severely bend the power cord. It may damage the internal wires. If the power cord shows signs of damage, do not use the brake fluid exchanger. Damaged cables pose a risk of electric shock. Keep the power cord away from heat sources, oil sources, sharp edges, and moving parts. Damaged power cords must be replaced by the manufacturer, its technician, or similarly qualified personnel to prevent dangerous situations or injuries.

Never leave the equipment unattended when it is powered on. Always turn off the equipment at the main switch and disconnect the power cord when not in use for its intended purpose!

Do not attempt to repair the equipment yourself.

Before connecting it to power, check that the socket voltage and fuse ratings match the values on the nameplate. Mismatch may cause serious hazards and equipment damage.

Equipment Safety Rules

It is essential to protect the equipment from rainwater, moisture, mechanical damage, overload, and rough handling.

Before use, check whether the power supply line, connecting hoses, and adapters are damaged. Do not operate the equipment if damaged.

Use the equipment only in compliance with all safety instructions, technical documents, and vehicle manufacturer specifications.

When adding supplementary fluids, only use brand-new and unopened products.

Application

This equipment is designed for automotive brake and clutch system brake fluid filling and draining.

Personnel Protection Safety Rules

Replacing the oil used by the equipment can be harmful to health; avoid any contact.

Always wear protective eyewear ? when replacing oil to prevent possible splashes into the eyes. If contact occurs, rinse with running water for several minutes with eyelids open. If symptoms persist, consult a doctor.

Always wear protective gloves ? while working to avoid skin contact with oil. If skin contact occurs, wash immediately with soap and water. Immediately remove clothing or shoes contaminated with oil.

Seek immediate medical advice if swallowed.

Always ensure you have stable footing to control the equipment safely in case of an accident.

Cautions

Warning

Before using the brake fluid bleeder, please pay attention to the following:

Improper use may lead to health hazards or property damage!

Brake fluid is toxic and may cause severe health damage!

Avoid contact with brake fluid.

Wear safety goggles ? to minimize the risk of injury from splashing liquids.

Wear appropriate protective gloves ? to minimize the risk of skin damage.

In case of skin contact with brake fluid, wash immediately with water.

Remove contaminated clothing.

Do not carry cloths or other items soaked with brake fluid in your clothing.

Disconnect the power plug ? before performing any work on the brake fluid bleeder.

Only plug the power plug into the socket when the brake fluid bleeder is disconnected from the power.

Do not make any structural changes to the brake fluid bleeder.

Inspect the brake fluid bleeder carefully before each use. If any abnormalities are found, do not continue using the machine.

Please have it repaired by a professional; do not attempt to open the machine yourself.

Do not wet the brake fluid bleeder, and do not operate the machine in a damp environment.

Use as Directed

The brake fluid bleeder is only intended for filling and draining brake fluid in automotive braking and clutch systems. Any other use or use beyond the specified scope is considered improper and must be prohibited.

Predictable Misapplication

Operating the brake fluid bleeder with fluids other than brake fluid can damage the machine and must be prohibited.

The manufacturer is not responsible for any damage resulting from improper use. The risks incurred are solely borne by the operator or carrier.

Product Introduction

Functional Principles

The brake fluid is pumped from the new fluid container and continuously delivered to the vehicle's brake fluid reservoir at the specified pressure. Then, according to the vehicle manufacturer's prescribed sequence, the used brake fluid is drained from each wheel brake caliper until new brake fluid flows out. Compared to traditional pressurized brake fluid bleeders, this automotive brake fluid bleeder effectively prevents the formation of air bubbles during the filling process and optimizes or eliminates the need for manual bleeding procedures. Its built-in pressure monitoring device detects pressure formation; if pressure cannot be generated or if the pump draws in air, the pump will automatically shut off to prevent air from entering the vehicle's brake fluid reservoir.

Product Functions

• Adjustable pulsating oil change can effectively clean the pipelines and ensure a more thorough fluid replacement.
• Powerful recovery function allows for simultaneous and rapid recovery of brake fluid.
• Independent design of new and used oil pipelines prevents cross-contamination between new and old fluids.
• Corrosion-resistant oil hoses are aesthetically pleasing, durable, and easy to move.

Product Features

Controlled by a microcontroller, the AST603 allows precise regulation of brake fluid pressure and flow. It has a high degree of automation, enabling single-person operation. This makes it convenient, time-saving, and labor-efficient.

Technical Specifications

Product Structure

Structure Diagram

The AST603 Brake Fluid Bleeder consists of the following components:

• A: Power Cable - Connects the device to the power source.
• B: Pressure Gauge - Displays the current working pressure.
• C: Work Indicator Light [?] - Illuminates when the device is actively working.
• D: Power Indicator Light [?] - Illuminates when the device is powered on.
• E: Start Button [▶️] - Initiates the fluid pumping operation.
• F: Pressure Regulation Knob - Adjusts the working pressure.
• G: Suction Hose - Draws new brake fluid from the container.
• H: Pressure Balance Hose - Returns excess fluid to the new oil container.
• I: Filling Hose - Delivers new brake fluid to the vehicle's reservoir.
• J: Safety Device - Protects against overpressure or other hazards.
• K: Power Switch [ON/OFF] - Turns the device on or off.

Basic Operating Procedure

1. Connect the universal adapter to the quick-connect fitting of the filling hose. Turn the pressure adjustment knob counterclockwise to the lowest pressure setting. Add new brake fluid to the new oil bottle. Press and hold the start button for 30 seconds until new brake fluid flows from the adapter, indicating the pipeline has been purged.
2. Remove the adapter from the filling hose quick-connect fitting and connect it to the vehicle's brake fluid reservoir. Then, connect the equipment's filling hose quick-connect fitting to the adapter.
3. Press and hold the start button again for 10 seconds while simultaneously turning the pressure adjustment knob clockwise to adjust pressure according to the pressure gauge and vehicle model. After 10 seconds, release the button for normal operation (when pressure is above 0.5 bar).
4. Operation stops by either turning off the power or automatically when the new oil bottle's fluid level is low and pressure drops below the threshold.
5. The device is factory-set to a default working pressure of 1.5 kg/cm² (approximately 1.47 Bar) to prevent deformation of the vehicle's brake fluid reservoir and maintain seal integrity. The pressure can be increased or decreased using the adjustment knob for bleeding or fluid replacement at lower pressures. Excessive pressure adjustment may damage the vehicle's brake system master cylinder.

Operating Instructions

Layout / Workstation

Place the brake fluid bleeder on a flat and stable surface. Ensure the vehicle's workstation is located near the brake fluid bleeder during startup and operation.

When the vehicle is lifted on a lift, ensure the filling hose is connected to the vehicle without any stress concentrations, such as tangling or twisting.

Initial Startup / Automatic Purging

Warning: Purging must be performed during initial startup in all cases!

Before the first startup, compare the power supply voltage with the rated voltage on the machine's nameplate (located on the back of the bleeder) to ensure they match.

1. Place the brake fluid bleeder securely on a flat surface.
2. Open the top cover of the new oil bottle.
3. Place the new oil bottle in the bracket of the brake fluid bleeder, adding new brake fluid carefully to prevent spillage.
4. Insert the suction hose and pressure balance hose into the bottom of the new oil container. The suction hose draws new brake fluid, and excess fluid returns via the pressure balance hose.
5. To purge the bleeder, do not install the adapter on the vehicle initially. Connect it only to the filling hose and attach it to an used oil container.
6. Connect the brake fluid bleeder to the power supply and turn on the power switch [ON/OFF]. Press and hold the "Start" button [▶️] to begin pump operation.
7. Observe the outlet of the adapter connected to the used oil bottle until brake fluid flows out without bubbles.
8. Turn off the power switch [ON/OFF] and wait until the pressure value slowly drops to 0 bar before removing the adapter.

At this point, the brake fluid bleeder has completed the purging process and is ready for use.

Replacing Brake Fluid

Warning: Changing brake fluid must strictly adhere to the safety guidelines and specifications provided.

Before starting work, pay attention to the vehicle manufacturer's instructions regarding maximum filling pressure and any special operational guidelines.

As a general rule, the guidelines and criteria for purging brake equipment provided by the manufacturer for each vehicle model are always applicable.

If the manufacturer's guidelines do not specify a particular working pressure, adjust the pressure using the adjustment knob to 1.6-2.0 Bar. For specific working pressures, use the adjustment knob as needed.

1. Install the appropriate adapter on the vehicle's brake fluid reservoir.
2. Connect the filling hose quick-connect interface to the installed adapter.
3. Turn on the brake fluid bleeder and switch on the power [ON/OFF].
4. Press and hold the "Start" button [▶️] until the pressure reaches at least 1.0 Bar. Use the adjustment knob to set the working pressure to the desired value (Pressure Building Step).

Warning: If pressure is successfully established, release the "Start" button [▶️]; the brake fluid bleeder should continue operating. If pressure is not established, release the "Start" button [▶️]; the brake fluid bleeder will stop immediately.

Maintenance Service

AUTOOL products are made of long-lasting and durable materials, with a focus on perfect production processes. Each product undergoes rigorous testing and inspection to ensure excellent quality and performance.

Maintenance

To maintain the product's performance and appearance, follow these care guidelines:

• Avoid rubbing the product against rough surfaces or causing wear, especially to the sheet metal housing.
• Regularly check product parts that require tightening and connections. Tighten them promptly to ensure safe operation.
• External and internal parts in contact with chemical media should undergo regular anti-corrosion treatment (e.g., rust removal, painting) to improve corrosion resistance and extend service life.
• Comply with safe operating procedures and do not overload the equipment. Ensure safety guards are complete and reliable.
• Eliminate unsafe factors promptly. Thoroughly check the circuit part and replace aging wires in a timely manner.
• Adjust clearances of various parts and replace worn or broken parts. Avoid contact with corrosive liquids.
• When not in use, store the product in a dry place. Avoid storing in hot, humid, or non-ventilated locations.

Warranty

A three-year warranty is provided for the main unit from the date of receipt. All included accessories are covered by a one-year warranty.

Warranty Access

• Repair or replacement of products is determined by the actual breakdown situation.
• AUTOOL guarantees the use of brand-new components, accessories, or devices for repairs or replacements.
• If the product fails within 90 days after customer receipt, the buyer must provide video and pictures. AUTOOL will bear shipping costs and provide accessories for free replacement. For products received more than 90 days ago, the customer will bear appropriate costs, while AUTOOL will provide parts for free replacement.

The following conditions are not covered by the warranty:

• The product is not purchased through official or authorized channels.
• Product breakdown due to the user not following product instructions for use or maintenance.

AUTOOL prides itself on superb design and excellent service. Further support or services are available.

Disclaimer

All information, illustrations, and specifications in this manual are subject to modification by AUTOOL without prior notice. Physical appearance and color may differ from the manual; refer to the actual product. While efforts have been made to ensure accuracy, inaccuracies may exist. In case of doubt, contact your dealer or AUTOOL after-service center. AUTOOL is not responsible for any consequences arising from misunderstandings.

Return & Exchange Service

Return & Exchange

AUTOOL users not satisfied with products purchased from online authorized platforms or offline authorized dealers can return products within seven days of receipt. Products may be exchanged for another of the same value within 30 days of delivery.

Returned and exchanged products must be in fully saleable condition, including documentation of the bill of sale, all relevant accessories, and original packaging.

AUTOOL will inspect returned items for good condition and eligibility. Items failing inspection will be returned to the customer without a refund.

Product exchange can be done through the customer service center or AUTOOL authorized distributors. The policy is to return the product from where it was purchased. For difficulties with returns or exchanges, contact AUTOOL Customer Service.

Contact Information

China Oversea Zone

Phone: 400-032-0988 / +86 0755 23304822

Email: aftersale@autooltech.com

Facebook: https://www.facebook.com/autool.vip

YouTube: https://www.youtube.com/c/autooltech

AUTOOL TECHNOLOGY CO.,LTD

Website: www.autooltech.com

Email: aftersale@autooltech.com

Phone: +86-755-2330 4822 / +86-400 032 0988

Address: Hangcheng Jinchi Industrial Park, Bao'an, Shenzhen, China

Corporate Standard: Q/OR 001-2023