Subaru XT 1988 Service Manual page 1071

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Compressor clutch is
not engaged.
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Lead wire of com- Compressor clutch
pressor clutch is coil has voltage
dead.
decreased to less t'-'
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10.5V.
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Refer to "Compr-es-
sor Clutch Diag-
noses". Ground terminal of
coil is poor at con-
nection.
Repair connection.
Refer to "Pulser
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and Related Cir·
cuits Diagnoses".
In case dutch is not
engaged
yet, replace
compressor clutch.
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Overcharge of refrigerant
Discharge refrigerant gas to an extent that
sight glass of receiver drier has only a few
bubbles.
Engine
speed:
1,500 rpm
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Check for dis- Discharge pres-
charge pressure. sure is not re-
OK if discharge duced.
pressure is
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reduced.
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Compressor clutch ;5 engaged, but
compressor does not run.
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Clutch slipping. Belt slipping.
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• Check and re-
Check belt ten-
adjust gap of sion and adjust it.
clutch. If belt is worn
• Clean oil or out or damaged,
dust on con-- replace it.
tact surface of
clutch.
If slipping coo-
tinoes, replace
compressor
clutch.
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High torque
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Air in refrigeration system
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Discharge system from service
va~
on discharge side.
Evacuate and recharge the sys-
tern.
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When torque is still
great,
repair or replace cOlllpnrssor.
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Compressor oil leaking
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Seizured com- Air-blow on spot where oil leak evidence is
pressor. found. Then check for refrigerant leaks
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using leak detector.
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Internal problem I 1.
in compressor
Refrigerant leak-
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No refrigerant
cylinder.
,ng.
leaking.
Check system.
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Repair or replace
if necessary.
Repair or replace
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Wipe - clean oil
compressor. with rag.
o
o
3
'a
..
CI)
en
en
o
..
c
5"
ea
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»
JJ
o
o
z
o
--4
o
Z
z
G>
en
-< en
--4
m
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