RUNNING ADJUSTMENTS
Air is compressible, and its presence in the system will affect the working
of the brakes and clutch.
Whilst the majority of owners will prefer to have these operations carried
out by a Doretti Agent, for the benefit of those desiring to carry out
their own running adjustments, the procedure is as follows
:
1.
Wipe clean the bleeder nipple and fit a piece of rubber tube over it,
allowing the tube to hang in a clean container partially filled with
fluid, so that the end of the pipe is below the level of the fluid.
2. Unscrew the bleeder nipple one complete turn with a suitable spanner.
There is only one bleeder nipple to each wheel and one nipple on the
clutch operating cylinder.
3.
The fluid reservoir should be filled before commencing the bleeding
operation, and must be kept at least half-filled during the whole
operation, otherwise more air will be drawn into the system via the
master cylinder. Always clean the area around the plug before
removing it; this will lessen the risk of grit falling into the chamber
after removal of the plug. Seven to eight strokes of the pedal will
reduce the fluid level from full to half-full.
4.
Depress the pedal quickly and allow it to return without assistance.
Repeat this pumping operation with a slight pause between each
depression of the pedal.
Observe the flow of fluid being discharged
into the glass jar and when all air bubbles cease to appear, hold the
pedal firmly down and securely tighten the bleeder nipple.
NOTE.-Depending upon the position at which a pipe joint in the brake
system has been uncoupled, it will be necessary to bleed the system at
either both front or both rear wheels. If the pipe was uncoupled at the
master cylinder, then the system must be bled at all four wheels.
PROPELLER SHAFT
If the propeller shaft has been removed it is essential when re-assembling
the front end splines to see that the arrows on the universal joint and propeller
shaft end are in line (see Fig. 11, page
20), so that the propeller shaft will
transmit uniform motion.
HYDRAULIC DAMPERS
The front telescopic dampers fitted do not require any adjustment or topping
up. If the dampers are removed, or for some reason new ones are fitted, it is
advisable to hold them the right way up (in the case of the rear dampers
check the level of the fluid and replenish if necessary), then pump the pistons
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