Triumph Thunderbird Service Manual page 310

7. Remove the rubber cap from the bleed nipple on
the caliper.
8. Whilst supporting the front brake caliper, attach a
transparent tube to the bleed nipple and place the
other end of the tube in a suitable receptacle
containing new brake fluid. Keep the tube end
below the level of fluid.
9. Support the caliper so that the bleed nipple is
uppermost.
1
1. Bleed nipple
10. Release the bleed nipple.
Note:
• During bleeding, do not allow the fluid level to
fall below the lower level mark in the reservoir.
If the fluid level is allowed to fall below this
mark, air may enter the system and the
sequence of bleeding must be repeated.
11. Get an assistant to slowly pull the brake lever to the
handlebar.
12. With the lever held fully against the handlebar, close
the bleed nipple. Once the bleed nipple is closed,
release the brake lever.
13. Repeat steps 11 and 12 until no more air appears in
the bleed tube.
14. When all air has been expelled from the system,
hold the lever fully against the handlebar and close
the bleed nipple.
15. Remove the transparent bleed tube.
16. Using the flat metal plate, gently push the brake
pads apart to allow clearance for the brake disc when
the caliper is refitted.
Brake fluid may be displaced as the caliper pistons are
compressed. To prevent bodywork damage, ensure that
the displaced fluid does not come into contact with any
part of the bodywork or wheel.
17. Secure the caliper to the front fork using the original
fixings. Tighten the fixings to 50 Nm.
18. Refit the transparent bleed tube and repeat steps 12
to 13 until no more air appears in the bleed tube.
Note:
• Maintain the brake fluid level between the
upper and lower reservoir levels whilst
bleeding is being carried out.
19. Tighten the bleed nipple to 6 Nm.
20. Remove the bleed tube.
21. Replace the bleed nipple cap.
22. Fill the reservoir to the upper level with new DOT 4
fluid.
Use only DOT 4 specification brake fluid as listed in the
General Information section of this manual. The use of
brake fluids other than those DOT 4 fluids listed in the
General Information section may reduce the efficiency
of the braking system leading to loss of motorcycle
control and an accident.
Observe the brake fluid handling warnings given earlier
in this section of the manual.
To prevent paint damage, do not spill brake fluid onto
any area of the bodywork. Spilled brake fluid will
damage paintwork.
23. Repeat the procedure for the left hand caliper.
12.10
SelVice Manual - Thunderbird