Bleeding The Rear Brakes, Renewing Brake Fluid, Motorcycles With Abs - Triumph Thunderbird Service Manual

Bleeding the Rear Brakes, Renewing
Brake Fluid, Motorcycles with ABS
1. Complete the brake bleed procedure as for models
without ABS brakes (see page 12-27).
2. Connect the Triumph diagnostic tool (see page
12-42).
3. Follow the on screen menu to ABS Diagnostics. From
the menu, select BLEED SYSTEM (see page 12-43).
Note:
•
•
•
4.
5.
6.
z
On pressing the Start button, the diagnostic
software will send a command to the ABS ECM
to open the 2
nd
circuit solenoid.
When the ABS modulator 2
nd
circuit is
activated by the bleed command, the rear
brake pedal travel will increase as the ABS
modulator solenoids are opened and will then
decrease as the solenoids are automatically
closed.
Pressure must be applied to the rear brake
pedal before operating the bleed sequence on
the diagnostic tool. An assistant will be
required to open the bleed nipple while
pressure is applied to the brake pedal.
Apply pressure to the rear brake pedal, press the
Start button to activate the bleed sequence on the
diagnostic tool, and with assistance, release the bleed
nipple.
Slowly depress the brake pedal and, holding the
pedal fully down, close the bleed nipple. Repeat
until no more air appears in the bleed tube,
maintaining the brake fluid level between the upper
and lower reservoir levels whilst bleeding is being
carried out.
When all air has been expelled from the system,
hold down the brake pedal and close the bleed
nipple. Tighten the nipple to 8 Nm.
The bleed sequence will run for a maximum of 90
seconds. Press the Stop button to end the bleed
sequence at any time. Once the bleed sequence has
completed the diagnostic tool will display a message
ABS system bleed complete.
The ABS module must be allowed to cool between
bleeding operations. Always allow the ABS module to
cool for 5 minutes before starting the bleed procedure
again. Failure to follow this instruction may result in
damage to the ABS module.
8. Repeat the above procedure as necessary until all air
is expelled from the system.
9. When all air has been expelled from the system,
hold down the brake pedal and close the bleed
nipple. Tighten the nipple to 8 Nm.
10. Repeat the brake bleed procedure as for models
without ABS brakes (see page 12-27).
12.32 SelVice Manual - Thunderbird