User guide

ManualsBrandsMityvac ManualsCarMV6830 VACUUM BRAKE BLEEDER

Page Number - 3

Form 822844

Important Precautions

• Always read carefully and understand instruc-

tions prior to using this equipment

• Brake ﬂuid is highly corrosive. Wear gloves and

approved safety goggles at all times, and pre-

vent contact of the ﬂuid with painted surfaces.

• Consult and follow the vehicle manufacturer’s

recommended procedures when servicing any

hydraulic system.

• Do not use this unit with ﬂammable liquids or

with ﬂuids at temperatures above 175° Fahren-

heit (80° Celsius).

• Properly dispose of old ﬂuids, and replenish hy-

draulic systems with new brake ﬂuid from freshly

opened containers.

• Do not attempt to pressurize the bleeder/evacu-

ator. It is designed for vacuum use only.

• This unit is equipped with an automatic shut-off

device that will prevent ﬂuid from entering the

compressed air stream and ejecting through the

exhaust. However, if the unit is continuously op-

erated when the reservoir is full, residual pres-

sure will allow the reservoir to completely ﬁll with

ﬂuid, creating the potential for spillage when the

lid is removed. To prevent this situation, empty

or turn the unit off prior to ﬁlling the reservoir

completely full.

The screws included in Base Kit 822701 are

provided to secure the base to a work surface.

Do not use the screws to attach the base to the

reservoir.

Principal of Operation

This unit is designed for use as a vacuum brake or

clutch bleeder, or ﬂuid evacuator. It utilizes com-

pressed air between 60 psi (4.1 bar)and 150 psi

(10.3 bar), and a venturi system, to build vacuum

in the reservoir. By attaching the proper accessory

to the coupler located on the top of the unit, the

vacuum can be used to drain brake ﬂuid from a hy-

draulic system such as the brake or clutch systems

on an automobile. It can also be used to evacu-

ate a variety of ﬂuids from reservoirs including the

master cylinder or those for power steering ﬂuid or

engine coolant.

An automatic master cylinder reﬁll kit is included

with this unit. It is conveniently designed for use

with a standard bottle of brake ﬂuid, to maintain an

adequate ﬂuid level in the master cylinder while the

hydraulic system is bled. Instructions are included

with the kit for its use.

•

Instructions for Bleeding Brakes

IMPORTANT: This unit is designed for servicing a

variety of vehicles in a safe, convenient manner.

However, options such as load sensors or anti-

lock brakes, available on many automobiles, may

require additional steps or equipment to perform a

proper service job. The procedures below are to

serve as guidelines for the use of this equipment,

in addition to these guidelines, always follow the

manufacturer’s recommended procedures when

servicing each unique vehicle.

Removing old ﬂuid from the brake mas-

ter cylinder

1. Properly park the vehicle on level ground and

turn the engine off.

2. Clean the exterior of the master cylinder and

master cylinder cap to prevent dirt from entering

the master cylinder when the cap is removed.

3. Remove the cap from the master cylinder reser

voir.

4. Connect clean, regulated (60 psi (4.1 bar) to 150

psi (10.3 bar)) compressed air to the male quick

disconnect nipple attached to the swivel air

inlet, located on one end of the vacuum bleeder

handle.

5. Connect the appropriate end of the evac tube

assembly to the female quick disconnect cou-

pler located on top of the vacuum bleeder.

6. Insert the other end of the evac tube assembly

into the master cylinder ﬂuid reservoir, and push

the vacuum bleeder throttle forward to start the

vacuum (allow a few seconds for vacuum to

build in the bleeder reservoir before suction oc-

curs). While evacuating the old ﬂuid, stir it up to

break loose and remove any sludge that has ac-

cumulated on the bottom and walls of the master

cylinder.

7. Once all ﬂuid is removed, turn off the bleeder

and reﬁll the master cylinder with new manufac

turer’s recommended brake ﬂuid.