Fuel Cell Repair; Uniroyal Fuel Cells - Raytheon BEECH BARON 58P Maintenance Manual

BEECHCRAFT
BARON 588 AND BARON 581%
NAINTENANCE
MANUAL
4.
After test,
remove
all plates and wipe
soap
7. The
solution and test cloth
are
satisfactory
residue from the exterior of the cell.
only
as
long
as
they remain clean. Indicator solution that is
not
in immediate
use
should be stored in
a
closed container
b.
Chemical Test to
prevent evaporation and deterioration.
1.
Attach
test
plates
to
all fitting openings
After the
test,
remove
all plates and test equipment. Allow
except
one.
the cell
to air
out.
2.
Pour ammonia
on
the absorbent cloth in the
ratio of 3
cc
per cubic foot of cell
capacity.
Place the
NOTE
saturated cloth inside the cell and install the
remaining test
plate.
In conducting
the tests outlined above, the cell
3. Make up
a
phenolphthalein
solution
as
need
not be confined by
a
cage
or
jig, providing
follows: add 40
grams
phenolphthalein crystals to 1/2 gallon
the
114 psi
pressure is not
exceeded.
of ethyl
alcohol, mix,
then add 1/2
gallon of
water.
4.
Inflate the cell with air
to
a
pressure of 114
FUEL CELL REPAIR
psi
maximum.
5.
Soak
a
large white cloth in the phenol-
000DYEAR FUEL CELLS
phthalein
solution, then wring
it out
thoroughly
and
spread
it
smoothly
on
the outer surface
of the cell. Press the cloth
For
repairs of Goodyear
fuel cells, refer
to
Goodyear Fuel
down to
ensure
detection of minute leaks.
Cell Repair Manual
AP-368, Vithane Fuel
Cells.
6.
Check the cloth for red
spots
which will
indicate
a
leak. Mark any leaks found and
move
the cloth
to UNIROYAL FUEL CELLS
a new
location. Repeat
this procedure until the entire
exterior surface of the cell has been covered. If red
spots
For
repair of Uniroyal fuel cells,
refer
to
Uniroyal Handbook
appear on
the cloth, they
may be removed by resoaking the
"Recommended Handling and Storage
Procedures for
cloth in the
solution.
Bladder
Type Fuel and Oil Cells P/N FC1473-73".
"END"
2&1M)O
Page
206
Mar 23/79