Instruction Manual

24
maintenanCe
THE PASSION PEOPLE
www.magura.com
BleeDing anD filling Brake

EBT (Easy Bleed Technology) makes it easy to bleed the brake.

The only difference between bleeding and filling – if any – is the amount
of oil required – the procedure is identical.
Loss of oil and irreparable damage to the braking system.
Ζ
Open the lock screws for bleeding and filling only.
Ζ
Use MAGURA Royal Blood (mineral oil) exclusively for bleeding and
filling – never DOT brake fluid.
Ζ
Never remove the stud bolts
(
3
)
[
F1
] [
M1
]
.

Because MAGURA Royal Blood does not age, it is not necessary to
bleed or refill your MAGURA brake regularly. Do this only if one of the
following reasons requires it:
ÎÎ
Brake does not respond immediately to a pull on the brake lever (even
though the brake cable is correctly tensioned with RT C).
ÎÎ
Pressure point is not clearly defined, it is spongy or does not remain
constant.
ÎÎ
After changing the brake hose (left-right) at the brake lever or converter.
ÎÎ
After replacing the brake hose.

To bleed or fill your MAGURA brake you will need the MAGURA service
kit or the MAGURA Profi bleed kit – available from dealers.
)
Insert barbe
(
1
)
tightly into the filling line by hand
[
L1
]
.
)
Fill filling syringe
(
2
)
with MAGURA Royal Blood.
)
Make sure that there is no air in the filling syringe and filling line.
)
Remove the piston of the bleeding syringe
(
3
)
.
)
Make sure that the pressure point adjusting screws
(
1
)
are unscrewed
to the stop (-)
[
H2
]
.
)
Make sure that the brakes are closed
–see Opening the brake for dis-/mounting the wheel, page 22.
)
Unscrew the screw plug
(
4
)
from the filler hole
(
5
)
[
L2
]
.
)
Screw the barbed fitting of the filling syringe
(
2
)
into the filler hole and
tighten to a tightening torque of max.4 N·m (35 lbf·in)
[
L3
]
.
)
Unscrew EBT screw
(
6
)
from the bleed hole
(
7
)
[
L4
]
.
)
Insert the bleed syringe
(
3
)
tightly into the bleed hole
[
L5
]
.
)
Position the bicycle so
for RT TT the brake lever is tilted slightly forward.
for RT C the bleed syringe is tilted slightly upwards.
)
Press MAGURA Royal Blood slowly out of the filling syringe
(
2
)
through
the brake system – tap lightly on the brake body, brake lever (RT TT)
and converter (RT C) during this process.
ÎÎ
This loosens air bubbles and they rise into the bleed syringe
(
3
)
[
L5
]
.
)
Continue the process until you cannot see any more air bubbles.
ÎÎ
The brake system has been bled.
Oil loss when removing the bleed syringe.
Ζ
Have a clean cloth at hand.
Ζ
Block the top hole with your thumb before removing the syringe.
Ζ
After removal quickly place a finger on the tip of the syringe.
)
Pull the bleed syringe out of the bleed hole.
)
Screw the EBT screw
(
6
)
into the bleed hole
(
7
)
and tighten to a tighten-
ing torque of max.0.5 N·m (4 lbf·in)
[
L4
]
.
)
Unscrew the barbed fitting of the filling syringe
(
2
)
from the filler
hole
[
L3
]
.
)
Screw the screw plug
(
4
)
into the filler hole
(
5
)
and tighten to a tighten-
ing torque of 4 N·m (35 lbf·in)
[
L2
]
.
)
Thoroughly clean up any oil residues on any surfaces – particularly on
brake track areas and brake pads.
)
Pull and hold brake lever.
)
Make sure that all connections are tight.
)
Set the pressure point –see setting pressure pOint, page 21.