Toyota 1986 Landcuiser Repair Manual page 642

AC·6
Symptom _ n in
,. lri,.'ltion syn . m
PlftSUrHloohighonboth
low'ndhighprfSSU~
sides
Symplom seenin
" f.;ge .. l;on lynem
Pre$$urtstOO hi!lhon both
lowlndhi!lhprnsuresides
Frost or Ilfpe: Imount
01
dew on piping I1 low
pressure side
AIR CON DITIONING SYSTEM - Troobleshooti ng
5. REFRIGERANT OVERCHARGE OR INSUFFICIENT
COOLING OF CON DENSE R
Condition : Does not cool sufficiently
Un,bI'lod_lop
wHici,ntperform,nal
due
10
uallSivere,
frigtrantin$ynem
Condenser cooling
'nwHiei.nl
Diagnosis
EXa/S$iverefrigtrantin
eyele_refripe:Tlntover,
...
"",
Condenser cooling
insufficie nt_condenser
fin$elogogedor lan
motorlaulty
(1) Clean condenser
(2 )
ChKklanmotor
ope~tion
13\
1f (1),nd
(2)
Ir. in
normalstate,ch!(:k
amountofrefrigtrlnt
NOTE: Ventoutr.
frigeran t through
ga..ge m;lnifold low
pr"wresideby
graduallyopenirog
valve,
6, EXPANSION VALVE IMPROPERLY MOUNTED/ HEAT
SENSING TUBE DEFECTIVE (OPENS TOO WIDE )
Condition : Insufficient cooling
Probilbl.Cll.lse
Troubl .in'''~ns.ionvllve
orhntMf1lirogtubenot
inl1ll1edc:orrectly
Remedy
( 1)
Checkhutsensi"'i!
tube in stalled
condit ion
(2) If
l1Iilnormal,test
e"~nsionvllVf1in
Replacei f defectivl