Piper Cherokee Six - Page 44

*PIPER CHEROKEE SIX SERVICE MANUAL
2-27A.
ANTI-ICING
FUEL ADDITIVE.
The aircraft may
be operated with
an anti-icing
fuel
additive meeting
the specification MIL-L-27686
added
to the fuel providing
that the fol-
lowing
specifications and
cautions are adhered
to:
a. The additive
must be uniformly
blended
with the fuel while
refueling.
b. It must not exceed .15%
by volume of the refueled
quantity.
c.
To insure
its effectiveness,
it should
be blended
at not less
than .10%
by volume.
(One and one-half liquid
ozs. per ten gallons of fuel would
fall within this range.)
d. A
blender supplied
by the additive
manufacturer
should be
used.
e. Except
for the information
contained
in this section, the
manufacturer's mixing
or
blending instructions
should be carefully
followed.
CAUTIONS
Assure
that the additive
is directed
into
the flowing
fuel
stream. The additive
flow should start after
and stop before
the
fuel flow. Do not permit
the concentrated additive
to come
into
contact with painted surfaces
or the interior surfaces
of
the
fuel
tanks.
Some fuels have
anti-icing additives pre-blended
in the fuel at
the refinery
so no further blending
should be performed.
Fuel
additives cannot
be used
as a substitute
for preflight
draining of
the fuel system
drains.
2-28. BRAKE SYSTEM.
2-29. SERVICING
BRAKE SYSTEM. The brake system
incorporates a hydraulic fluid
reservoir through which
the brake system is periodically
serviced. Fluid is drawn from the
reservoir by the brake
cylinders to maintain the volume
of fluid required for maximum
braking efficiency.
Spongy brake pedal action is often
an indication that the brake fluid
reservoir is running
low on fluid. Instructions for filling
the reservoir are given in Paragraph
2-30. When found necessary
to accomplish repairs to any
of the brake system components,
or to bleed the system, these instructions may be found in Section VI.
2-30. FILLING BRAKE
CYLINDER RESERVOIR. The
brake cylinder reservoir should be
filled to the level marked on reservoir,
with the fluid specified in Table
II-I. The reservoir.
located on the left side of the firewall
in the engine compartment, should
be checked at
every 50-hour inspection and replenished
as necessary. No adjustment
of the brakes is
necessary, though they should be
checked periodically per instructions given
in Section VI.
2-31. DRAINING BRAKE
SYSTEM. To drain the brake system,
connect a hose to the
bleeder
fitting on the
bottom of the cylinder
and place the other
end of the line
in a suitable
container. Open
the bleeder and
slowly pump the
hand brake lever and
the desired brake
pedal until
fluid ceases to flow. To drain the wheel
brake unit, disconnect the line at
the
bottom of the unit
and allow fluid
to flow into a suitable
container. To
clean the brake
system, flush with denatured alcohol.
Added:
12/15/80
HANDLING
AND SERVICING
1B20