Page 888 - Wurth Total Catalogue

VACUUM BRAKE BLEEDER KIT - OPERATING INSTRUCTIONS

Operation Notes for all applications:
This device is equipped with an automatic shut-off unit, which prevents the Note for the master brake cylinder: An automatic master cylinder refill kit is
fluid from entering into the compressed air flow. Empty the bleeder tank included with the vacuum brake bleeder, which regulates the level of the new
regularly to prevent the tank from being overfilled with the drawn off fluid. brake fluid. Follow the refill instructions to prevent air from being drawn into
the master cylinder pistons, brake lines, and wheel cylinders.
For all applications connect clean, regulated compressed air (between 4.1
bar (60 psi) and 10.3 bar (150 psi) to the male quick disconnect nipple Observe the vehicle manufacturer’s guidelines. During the bleeding process,
attached to the swivel air inlet located at one end of the cover housing. air is drawn into the lines.

Connect the appropriate end of the extractor tube to the fluid inlet cover This is normal and does not indicate a malfunction. To prevent or reduce air
located on top of the brake bleeder unit. from being drawn in, coat the bleed screw threads with silicon grease prior
to the bleeding.
Removing old brake fluid or removing old fluid from the clutch
master cylinder The rubber fitting of the bleeder hose must remain connected to the bleeder
Insert the other end of the extractor tube assembly into the master cylinder screw. The vacuum must be maintained while closing the bleed screw.
fluid reservoir. Press and immediately release the blue pushbutton to reset the
float. Allow a few seconds for the vacuum to build. Remove all sludge/debris This prevents air from being drawn in before the bleed screw is tightened
remainders. and sealed.

Once all brake fluid is removed, switch the brake bleeder off and refill new When an automatic refill kit, as provided with this unit, is not supplied, check
brake fluid. the brake-fluid level regularly.

Vacuum-bleeding the brake lines and the wheel brake Troubleshooting
cylinders Problem: After switching the air valve to the “open” position and resetting
Slip the rubber fitting located on the other end of the brake bleeder hose the float with the blue pushbutton, the vacuum brake bleeder does not work.
over the nipple of the bleed screw. Corrective Action: Remove the brake bleeder lid. Activate the flow
by pushing it up into the housing. Press and immediately release the blue
Open the air valve. Press and immediately release the blue pushbutton to pushbutton to reset the float. Proceed once a “click” is heard. If the problem
reset the float. Allow a few seconds for the vacuum to build. Open the bleed still persists, check the air source.
screw. (Do not tear off the bleed screw!)
Problem: When the fluid inside the bleeder tank reaches the “full” position,
Keep the bleed screw open until new fluid is visibly flowing through the the vacuum brake bleeder will not automatically shut off.
bleeder hose. Corrective Action: Shut the air valve and stop the process.
Dispose of fluid according to country-specific regulations.Activate the flow by
Close the bleed screw firmly before removing the rubber fitting or shutting off removing the brake bleeder lid and pushing it up into the housing. Press and
the brake bleeder. immediately release the blue pushbutton to reset the float. Proceed once a
“click” is heard.

Vacuum-bleeding the clutch master cylinder, slave cylinders Problem: When the vacuum brake bleeder is activated, fluid is not
and hydraulic lines. drawn off.
Slip the rubber fitting located on the other end of the brake bleeder hose Corrective Action: Check the compressed-air source. Check if the hose
over the nipple of the bleed screw. is properly connected, not damaged or blocked/obstructed through debris.
Replace damaged hoses. If the hose is clogged, remove the blockage. Check
Open the air valve. Press and immediately release the blue pushbutton to if the refill bottle is empty and refill as required. Check if the brake bleeder
reset the float. Allow a few seconds for the vacuum to build. Open the bleed tank is full. Dispose of fluid according to country-specific regulations.
screw. (Do not tear off the bleed screw!)

Keep the bleed screw open until new fluid is visibly flowing through the
bleeder hose.

AUS. pub. 10/15 © Close the bleed screw firmly before removing the bleed screw adapter or
shutting off the brake bleeder.

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