Sealey VS0204 - Manual (Page 2)

3. AIR suPPly cONNecTION
Recommended hook up is shown in fig.2.
3.1. You will require an air pressure of 40psi and air flow according
to specification.
3.2. Ensure that the air supply is clean and does not exceed 40psi.
too high a pressure and/or unclean air may damage the
diaphragm and will shorten the product life due to excessive
wear and may cause damage and/or personal injury.
3.3. Drain the air tank daily. Water in the air line will damage the
unit and invalidate your warranty.
3.4. The minimum hose diameter should be ¼" I.D and fittings
must have the same internal dimensions.
3.5. Keep hose away from heat, oil and sharp edges. check
hoses for wear and make certain that all connections are secure.
4.1. brake bleeding procedure.
refer to the vehicle manufacturer’s instructions for brake
bleeding and wheel sequence before proceeding. If no
specific instructions from the vehicle manufacturer exist,
follow the instructions detailed below.
 WARNING! familiarise yourself with the hazards of brake
fluid - read manufacturer’s instructions on the container.
Do not touch the vehicle’s brake pedal whilst bleeding
the brakes.
4.1.1. check that the pressure release valve (fig.3.1) is open and
that there is no pressure within the unit. Unscrew the filler
cap (fig.1.1) on the unit and top up to full capacity with new
brake fluid. replace filler cap and close the pressure release
valve.

WARNING! Do not allow the fluid capacity within the unit
to fall below ½ litre during the bleeding process
otherwise air may enter the system.
NOTe: the diaphragm may be visible from the neck of the
filler and will require deflating before filling, this can be done
by pushing down on the diaphragm with a clean blunt
instrument.
4.1.2. check that the air regulator (fig.3.2) is turned fully counter
clockwise, the air intake valve (fig.3.3) and the fluid supply
pipe valve (fig.1.3) are in the closed positions.
4.1.3. connect the brake bleeder (fig.3.4) to a suitable compressed
air supply.
4.1.4. slowly open the air intake valve (fig.3.3) and turn the air
regulator clockwise until a pressure of 20psi is registered on
the pressure gauge (fig1.2).
NOTe: the brake bleeder can be used remotely by closing
the air supply valve once the unit has been charged with air
and then disconnect the air supply.
DO NOT exceed the maximum pressure of 40psi, if the unit
exceeds this pressure the safety valve (fig.3.5) will be
activated.
4.1.5. connect one of the adaptors to the end of the fluid supply
pipe and hold over a waste oil container, slowly open the
valve (fig.1.3) to release air from the supply pipe. When
brake fluid is free flowing, close the valve.
4.1.6. remove the cap on the vehicle’s brake fluid reservoir. If the
brake fluid level is not at maximum, top it up and select a
suitable adaptor for the vehicle. In some cases a universal
adaptor will be required, see section 4.4. tighten the adaptor
onto the master cylinder ensuring that a good seal is
achieved (fig.4).
4.1.7. connect the fluid supply pipe quick connector to the adaptor
and slowly open the valve (fig.1.3) to pressurise the system.
4. OPeRATION
4.1.8. starting with the brake furthest away from the master
cylinder connect the tube from the bleeding bottle to the
nipple and using a brake spanner open the nipple
approximately ¼ turn (fig.5), brake fluid will flow through the
clear pipe into the bottle, when there are no visible bubbles
tighten the bleed nipple.
4.1.9. repeat the process at each wheel in turn as necessary.
4.1.10. to remove the brake bleeder, shut off the fluid supply pipe
valve (fig.1.3), close the air intake valve (fig.3.3) and open
the pressure release valve to depressurise the unit.
4.1.11. Disconnect the fluid supply pipe from the adaptor, taking care
not to spill any brake fluid and remove the adaptor from the
brake fluid reservoir. Any excess fluid in the reservoir should
be removed using the supplied rubber squeeze and disposed
of into a suitable waste oil container.
4.1.12. refit the original brake fluid reservoir cap.
4.2. changing the brake fluid.
4.2.1. carry out the brake bleeding procedure as described above.
4.2.2. When new fluid can be seen in the clear tube tighten the
brake nipple.
4.2.3. repeat this procedure at each wheel in turn.
4.2.4. Disconnect as above (4.1.10 & 4.1.11).
NOTe: When brake bleeding and/or fluid changing is
complete, test the action of the brake pedal to ensure that the
brakes are working and are not spongy before using the
vehicle on the road.
4.3. clutch bleeding procedure.
refer to the relevant vehicle manufacturer’s instructions for
clutch bleeding procedure. If no specific instructions from the
vehicle manufacturer exist, the same procedures as for brake
bleeding should be followed.
Vs0204.V4 Issue no: 1 - 22/05/13 Original Language Version
Fig.2
Fig.3
Fig.4 Fig.5