Autool AST618 User Manual - Page 4

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How to Adjust the Working

Pressure Correctly

The working pressure of the pressure regulator has been set

as 1~1.5 bar before delivery, to ensure that the car reservoir

tank will not deform while changing the fluid, thereby

guaranteeing the sealing performance of the secondary

sealing ring. In addition, it allows you to exhaust the air or

change the liquid at a relatively low working pressure by

adjusting the pressure and the switch. Under the special

circumstances, while operating at a relatively high working

pressure, the pressure is not supposed to be too high,

which may damage the clutch master cylinder of the braking

system.

Low-pressure Sealing Performance

Test

By using this (smart)brake fluid replacement machine, you

can exhaust the air and fill the fluid for your brake. You can

also perform low pressure detection on the hydraulic brake.

The device can be connected to the car reservoir tank

through an adapter. Please close all the air valves before the

connection. The air in the braking system is pressurized by

the working pressure of the device (to the pressure required

by the specific car model). Please check the master cylinder

and the braking pipelines in case there is any leakage. If the

brake fluid overflows, it means the braking system is not

completely sealed.

Operation Instructions

Note: It's not necessary to start the vehicle.

Lift the car to a proper height to make the driving wheels

off the ground.

Connect the four oil tanks of the device to the car clutch

slave cylinder, and loosen the exhaust screws to ensure

there is oil flowing out.

Pour 2 liters of new brake fluid into the fill port of the

device, and connect the adapter that matches the car

model with the port of the brake fluid reservoir of the car

master cylinder.

Connect the device to a 12V car battery and turn on the

power switch.

Press the "START" button to change the brake fluid.

When changing the fluid, please pay attention to the port

of brake fluid reservoir, if the process is too slow, press

the "Accelerate" button and if it's too fast, press the

"Decelerate" button to slow it down.

After the oil change finishes, the used oil in the tank of

the equipment must be completely drained. If it's not

emptied, the vacuum pump will be damaged and the oil

change process will fail.

Reminder:

Please check each connection parts when changing the fluid

to see if there is oil leakage and whether the connecting

hose is damaged. Please keep the oil fill port clean.