CHECK AND TEST 1

Step 1

By listening, it is evident
that the compressor is
louder than normal.

DIAGNOSIS 1


NOTE


PROCEDURE 1

Step 1

Discharge refrigerant.
Cut charging tube off
with pliers.

Step 2

Discharge all refrigerant
toward the exhaust vent.

Step 3

Cut off suction pipe and
exhaust pipe.

Step 4

Unscrew terminal cover.

Step 5

Remove terminal cover.

Step 6

Remove protector and
starter.

Step 7

Unscrew earthing wire.

Step 8

Unscrew nut on
compressor.

Step 9

Install a new compressor
and tighten the nuts onto
compressor.

Step 10

Braze the joints of suction
and exhaust pipes.

Step 11

Re-braze a copper tube
onto processing tube of
compressor.

To get more
details on brazing
requirements, please go
to Annex B1

Note


Step 12

Install quick connector
onto re-brazed pipe.

Step 13

Melt brazing material
with flame and pull out
processing tube with
pliers.



Step 14

Re-braze a copper
tube onto compressor
processing tube.

PROCEDURE 2


Step 1

Clean paint off brazed
joint of drying-filter.


Step 2

Cut off drying-filter.

Step 3

Cut off capillary and
remove the cut end by
shaking.


Step 4

Braze on a new
drying-filter.

Step 5

Add quick connector
onto processing pipe of
drying-filter.

Step 6

Inject nitrogen (1.57Mpa)
through quick connector
into pipe for at least
3 min to blow remaining
refrigerant away.

Step 7

Perform leakage test on
brazed joints of dryingfilter
and compressor
processing pipe.

Step 8

Vacuum and recharge.
Please get more details
of vacuuming and gascharging
requirements
on Annex B2

Step 9

Leave locked pliers
attached to second
block and shake to cut
off the remaining pipe.

Step 10

Braze the ends and
remove the pliers.

DIAGNOSIS 2


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