K-2
K-2
Air Conditioner
29
W701-0160E
11 Diagnosis table
11.1 Car air conditioner system diagnosis table I (Refrigeration circuit)
A/C system
trouble
phenomenon
Status explanation
of A/C system
pressure
Phenomenon explanation to
consider other factors
Diagnosis result (phenomenon of
principal cause)
Possible cause
Measures (specific
part name and
repair method)
Bubble does not appear easily to
sight glass when dripping water on
condenser.
Sight glass is transparent with liquid
refrigerant.
Liquid level in sight glass does not
fall even if about two seconds have
passed since A/C OFF.
Refrigerant overcharge
Discharge
refrigerant up to
proper amount.
When idling, pressure at high
pressure side is high.
There is a spot where hot air
enters in front of condenser.
Hot air of condenser outlet
air and radiator outlet air
flows in front of condenser.
Install packing or
rubber sheet to a
part where hot air
hits.
----------------------------- --------------------------------
Much air contaminates in
refrigeration circuit.
Deflate from circuit
and fill refrigerant.
Replace receiver
drier (R/D).
Dirt or blocking in condenser fin.
------------------------------
Wash condenser.
Insufficient
cooling.
Pressure at high
pressure side is
high
Ventilation to condenser is bad.
Air volume of condenser fan is few. Condenser fan failure.
Replace
condenser fan.
No cooling
High pressure is
high, and low
pressure is low.
Pressure at high pressure side rises
immediately after A/C ON. Bubbles
appear in sight glass. (High
pressure side is uncertain for
vehicle with charge valve following
R/D.)
--------------------------------
Blocking in high-pressure
circuit between COMP. and
R/D.
Remove blocked
foreign object, or
replace part.
Bubbles appear in sight glass.
Oil blots to the piping and parts.
Gas detector detects.
Gas leakage from piping
joint and parts.
Check joint
looseness and
re-tighten, or
replace part.
Insufficient
cooling.
Both pressures at
high pressure side
and low pressure
side are low.
Bubbles appear in sight glass, then
it changes transparently.
------------------------------
TXV adjustment failure
(reduced too much), or gas
leakage in therms sensor
tube.
TXV readjustment
or replace.
Содержание TT-800XXL1
Страница 20: ...B 2 B 2 Hydraulic Pump 3 W101 0280E 1 2 Inside view Variable displacement piston pump...
Страница 25: ...8 W101 0280E B 2 B 2 Hydraulic Pump 1 Joint control piston 2 Hanger 3 Metal 4 Orifice Hanger section 6 7...
Страница 114: ...5 G 2 G 2 Boom Five Section Boom 5 W536 0760E G 2...
Страница 166: ...13 13 W701 0160E K 2 K 2 Air Conditioner K 2 4 Layout 4 1 Overall layout...
Страница 167: ...14 14 W701 0160E K 2 K 2 Air Conditioner K 2 4 2 Overall layout...
Страница 168: ...15 15 W701 0160E K 2 K 2 Air Conditioner K 2 4 3 Evaporator section...
Страница 169: ...16 W701 0160E K 2 K 2 Air Conditioner 5 Compressor ass y...
Страница 170: ...17 17 W701 0160E K 2 K 2 Air Conditioner K 2 6 Evaporator ass y...
Страница 171: ...18 18 W701 0160E K 2 K 2 Air Conditioner K 2 7 Condenser ass y...
Страница 172: ...19 19 W701 0160E K 2 K 2 Air Conditioner K 2 8 Electric 8 1 Electric circuit 0 363 205 60030...
Страница 173: ...20 20 W701 0160E K 2 K 2 Air Conditioner K 2 8 2 Main harness A...
Страница 174: ...21 21 W701 0160E K 2 K 2 Air Conditioner K 2 8 3 Main harness B...
Страница 227: ...Hydraulic Pressure Setting Table 1 WY02 0320E 1 Y 1 Y 1 Y 1 Hydraulic Pressure Setting Table 1 345 801 01500...
Страница 254: ...Location of Hydraulic Parts 4 WZ07 0780E 4 Z 4 Z 4 Z 4 Location of Hydraulic Parts...
Страница 259: ...Hydraulic Electric Carrier Equipment Comparison Table Z 8 Z 8 Z 8 9 WZ09 0130E 9...
Страница 262: ...Z 11 Z 11 Harness Swing Table Right Z 11 11 WZ04 1300E 11 Harness Swing Table Right 5 343 530 32010...
Страница 263: ...Z 12 Z 12 Harness Boom Z 12 12 WZ04 1310E 12 Harness Boom 1 2 2 343 530 32040 1 343 530 22030...
Страница 265: ...14 WZ04 1320E 14 Z 14 Z 14 Harness Lower Z 14 Harness Lower Applicable serial No 475334 1 1 336 500 30021...
Страница 266: ...Z 15 Z 15 Harness Outrigger Operation Option Z 15 15 WZ04 1330E 15 Harness Outrigger Operation Option 0 333 316 60020...