Triumph Trident T160 - F6 FLUSHING THE HYDRAULIC SYSTEM; F7 BLEEDING THE SYSTEM (GENERAL)

BRAKES, WHEELS AND TIRES
SECTION F6
FLUSHING THE HYDRAULIC SYSTEM
F
The capacity of the reservoir is such that, even when
the brake pads ·are excessively worn, there is
sufficient fluid retained In the reservoir to allow the
brake to be operated, so that, under normal
conditions, the fluid should not require replenish-
ment. However, If the hydraulic system has been
contaminated by foreign matter, or other flUids, It
should be flushed out and refilled with new fluid.
The system should be flushed out, In any case; once
every th ree years.
Pump all the fluid out of the system, by opening the
bleed screw, and operating the front brake lever a
few
times, after connecting a pipe to the bleed
sc"rew, In order to collect the fluid In a container.
Fill the master cylinder reservoir with meth'ylated
spirits, and pump out through the bleed screw,
In a manner similar to that previously described.
Having ensured that all the methylated spirit has
passed through the bleed screw, replenish the
master cylinder r~servolr with the specified grade
of brake fluid. The capacity is approximately 60 em'
for the front brake, and 80 em] for the rear brake,
a.nd the speCial fluid to be used must conform with
DOT 3, Federal
Motor Vehicle Standards 116 (for
U.S.A.). Lockheed Braking Fluid
to specification
329
should be used in other parts of the world.
Finally, "bleed" the brake, as described in Section
F7.
IMPORTANT NOTE.
If the system has been contaminated by a minerai
oil,
all rubber parts, including flexible hoses, must
be replaced.
SECTION F7
BLEEDING THE SYSTEM (GENERAL)
Remove the cap and diaphragm from the reservoir
and flll with the correct hydraulic fluid (see Fig. F3) ..
Throughout the whole operation, maintain the
fluid level at not less than t full, to avoid any risk
of Introduction of air at this point.
Attach a rubber or other flexible tube firmly to the
bleed nipple, (on the top right side of the caliper),
as
shown In Figure F4, subrr.erging the free end of
the tube In a quantity of braking fluid In a clean glass
Jar.
The tube outlet must remain submerged
throughout the whole operation, and if the oper-
ation Is being carried out single han'ded, must also
be looped as shown in the illustration Figure 4,
to ensure that there Is a IOhead" of fluid between
the top of the loop and the bleed nipple, as a
safeguard,
to prevent air from being drawn back
into the system when operating the control lever
or pedal.
Unscrew the bleed nipple one complete turn
(With the rubber tube stili attached) and operate
the lever or pedal steadily to Its fullest extent. Any
air in the system will be expelled through the
tubing and be observed as bubbles rising In the jar.
When the lever or pedal reaches the Inner end of
Its stroke, tighten down the bleed nipple.and allow
the lever or pedal to reeu rn to Its normal position
without assistance.
c
Fig. F4. Bleeding brake system
FS
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