LG GR-131CN user manual download

Languages: English
Pages:11
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Page 1 of 11
SAFETY
PRECAUTIONS
Please read
the
following
before servicing
your refrigerator.
1. Check if
electric
leakage
occurs in the set.
2. When servicing
current
applying
parts, unplug
prior to
servicing.
3. If testing with power on, wear rubber gloves to prevent
electric
shock,
4. Be sure to check regular current,
voltage,
and
capacity.
5. Don't touch metal products
in a cold freezer
compartment
with wet hands.
It may cause frostbite
or
other injury.
6. Prevent water flowing
to electric elements
in mechanical
parts,
7. When tilting the set, remove any materials
on the set,
especially
thin plate type (ex,: glass plates or books.)
8. When servicing
evaporator
part, wear cotton gloves
to
prevent injury by sharp fins of the evaporator,
9. Do not open the sealed refrigeration
system,
It could
cause injury or pollute the
air,
Leave this job to
an
autherized
servicer
with the appropriate
refrigerant
recovery equipment.
SERVICING
PRECAUTIONS
AIR
RECHARGING
IN
COMPRESSOR
Test the refrigeration
system by connecting
it electrically
before beginning
the refilling operation.
This is necessary
to ascertain
the function
of the motor-compressor
and
identify defects
immediately.
If defects have been found,
empty the old system of R134a residue by breaking off the
end of the extension
piece at its narrow point. (Figure
1)
Use the appropriate
refrigerant
recovery
equipment.
Replace the filter and any damaged
components.
Unsolder
and pull off the piece remaining
inside the service
tube and
then attach an extension
with male Hansen,
and last,
solder it to the same tube again. (Figure 2)
It is necessary
to execute the soldering
operation
with
valve open so that the fumes caused
by oil residue can
come out freely without blowholes
between two tubes
during heating the point to be soldered.
The extension
fitted with the male Hansen is connected
to
the female fitting
of the vacuum
pump tube. (Figure 3)
Air evacuating
from the system begins as soon as the
pump starts. The refrigeration
system must be kept under
vacuum
until the reading
on the low-pressure
gauge
indicates
vacuum (0 absolute,
-1 atm., -760 mm Hg.)
In any case,
it is advisable
to keep the pump running for
about
60 minutes.
(Figure 4)
POINT TO BE
BROKEN
SERVICE
TUBE
EXTENSION
Figure
1
CHARGE
TUBE
FEMALE
EXTENSION
HANSEN
MALE
HANSEN
SOLDERING
POINT
Figure
2
MP
PRESSURE
GAUGE
Figure 3
Figure 4
-3-
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