{"id":51471,"date":"2024-11-19T18:03:27","date_gmt":"2024-11-19T10:03:27","guid":{"rendered":"https:\/\/shop.autooltech.com\/?post_type=product&p=51471"},"modified":"2026-05-15T06:42:02","modified_gmt":"2026-05-15T13:42:02","slug":"autool-ast603-pulsating-brake-fluid-bleeder","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/da\/product\/autool-ast603-pulsating-brake-fluid-bleeder\/","title":{"rendered":"AUTOOL AST603 Pulsating Brake Fluid Bleeder"},"content":{"rendered":"
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AUTOOL AST603<\/div>\n

Product Overview<\/h2>\n

The AUTOOL AST603 Brake Fluid Change Machine is a pulsating brake fluid bleeder designed for efficient brake oil replacement on vehicles. It uses pulsating oil change technology to send pulse signals at regular intervals, applying high-frequency pressure to brake fluid pipelines. This helps solve air-removal issues during brake fluid replacement, helps remove dirt and impurities attached to the inner pipe walls, saves service time, and improves workshop efficiency.<\/p>\n

\n Pulse Exchange<\/span>\n One-Person Operation<\/span>\n 0.5-2.5Bar<\/span>\n 1.6L\/min<\/span>\n <\/div>\n
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35W<\/span>Max Power<\/span><\/div>\n
3.5m<\/span>Filling Hose<\/span><\/div>\n
5.19kg<\/span>Weight<\/span><\/div>\n
3 Years<\/span>Warranty<\/span><\/div>\n <\/div>\n <\/div>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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Key Features<\/div>\n

Key Features<\/h2>\n

AST603 combines pulse pressure exchange, one-person operation, air-free filling, liquid-level protection, corrosion-resistant hoses, and detailed control design for efficient brake fluid replacement.<\/p>\n <\/div>\n\n

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Pulse One-Button Replacement<\/h3>\n

Only one person is needed to operate the machine. After the working environment is set, the process can run automatically, making brake fluid replacement easier and less labor-intensive.<\/p>\n <\/article>\n

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Pulsating Brake Fluid Exchange<\/h3>\n

High-frequency pulse pressure pushes new brake fluid through the brake line while helping remove old oil, dirt, and impurities attached to the pipeline inner walls.<\/p>\n <\/article>\n

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Air-Free Filling<\/h3>\n

Before first use, bleed the device and fill the internal tube with brake fluid to reduce the risk of air entering the braking system during replacement.<\/p>\n <\/article>\n

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Intelligent Liquid Level Monitoring<\/h3>\n

When the new fluid container runs out of brake fluid during filling, the built-in monitoring device automatically stops to help prevent air from entering the brake pipelines.<\/p>\n <\/article>\n

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Corrosion-Resistant Oil Hoses<\/h3>\n

The hoses use special materials with strong corrosion resistance, helping maintain long-term durability against brake fluid and other chemical substances.<\/p>\n <\/article>\n

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Detailed Control Design<\/h3>\n

Pressure gauge display, metal hose fittings, pressure adjustment knob, indicator light, aviation power plug, safety device, and screw-column quick connector improve control and usability.<\/p>\n <\/article>\n <\/div>\n\n

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\"AUTOOL\n Click to enlarge<\/span>\n <\/figure>\n
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How It Works<\/div>\n

How It Works<\/h2>\n

AST603 delivers brake fluid from the new oil container to the vehicle brake fluid reservoir at a set pressure, then the used brake fluid is drained from the wheel brake calipers in the correct sequence until fresh fluid flows out.<\/p>\n <\/div>\n\n

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New Fluid Delivery<\/h3>\n

Brake fluid is pumped from the new fluid container and delivered to the vehicle brake fluid reservoir at a specified pressure.<\/p>\n <\/article>\n

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Used Fluid Recovery<\/h3>\n

Drain the used brake fluid from each wheel brake caliper in the prescribed sequence until the new brake fluid flows out.<\/p>\n <\/article>\n

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Pressure Protection<\/h3>\n

The built-in pressure monitoring device detects pressure levels. If pressure cannot be generated or the pump draws in air, it automatically shuts off to prevent air from entering the vehicle brake fluid reservoir.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n

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How To Use<\/div>\n

How To Use<\/h2>\n

Follow the correct setup, pressure-building, bleeding, and shutdown sequence. The shutdown sequence is especially important because turning off the machine before tightening the caliper screw may allow air to enter the system.<\/p>\n <\/div>\n\n

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1. Bleed The Device First<\/h3>\n

Before using the device, bleed the machine first. The oil reservoir on the vehicle must be filled to the maximum level.<\/p>\n <\/article>\n

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2. Connect The Adapter<\/h3>\n

Find a suitable adapter and connect it to the vehicle brake fluid reservoir.<\/p>\n <\/article>\n

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3. Build Initial Pressure<\/h3>\n

Press and hold the start button for 5-6 seconds to build pressure. Once pressure reaches above 0.6 bar, release the button.<\/p>\n <\/article>\n

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4. Adjust Working Pressure<\/h3>\n

Adjust the working pressure. The source operation guide usually recommends adjusting pressure to about 2 bar.<\/p>\n <\/article>\n

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5. Open The Caliper Screw<\/h3>\n

After turning on the machine and adjusting pressure, loosen the wheel cylinder \/ brake caliper screw to start draining old brake fluid.<\/p>\n <\/article>\n

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6. Check Old Oil Drainage<\/h3>\n

Check the layering and color of the fluid in the waste oil bottle. The darker layer is the old oil.<\/p>\n <\/article>\n

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7. Use The Correct Shutdown Sequence<\/h3>\n

After replacement is complete, tighten the wheel cylinder \/ brake caliper screw first, then turn off the machine. This prevents air from entering the system.<\/p>\n <\/article>\n <\/div>\n

\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n\n
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Use Notes<\/h3>\n