Nissan Almera Tino V10 (2001 year). Manual — part 168
Low-pressure Side Sometimes Becomes Negative.
NLHA0151S05
Gauge indication
Refrigerant cycle
Probable cause
Corrective action
Low-pressure side sometimes
becomes negative.
AC354A
+
Air conditioning system
does not function and
does not cyclically cool
the compartment air.
+
The system constantly
functions for a certain
period of time after com-
pressor is stopped and
restarted.
Refrigerant does not dis-
charge cyclically.
↓
Moisture is frozen at expan-
sion valve outlet and inlet.
↓
Water is mixed with refriger-
ant.
+
Drain water from refriger-
ant or replace refrigerant.
+
Replace liquid tank.
Low-pressure Side Becomes Negative.
NLHA0151S06
Gauge indication
Refrigerant cycle
Probable cause
Corrective action
Low-pressure side becomes nega-
tive.
AC362A
Liquid tank or front/rear side
of expansion valve’s pipe is
frosted or dewed.
High-pressure side is closed
and refrigerant does not flow.
↓
Expansion valve or liquid
tank is frosted.
Leave the system at rest
until no frost is present. Start
it again to check whether or
not the problem is caused by
water or foreign particles.
+
If water is the cause, ini-
tially cooling is okay. Then
the water freezes causing
a blockage. Drain water
from refrigerant or replace
refrigerant.
+
If due to foreign particles,
remove expansion valve
and remove particles with
dry and compressed air
(not shop air).
+
If either of the above
methods cannot correct
the problem, replace
expansion valve.
+
Replace liquid tank.
+
Check lubricant for con-
tamination.
TROUBLE DIAGNOSES
Insufficient Cooling (Cont’d)
HA-82
Insufficient Heating
TROUBLE DIAGNOSIS PROCEDURE FOR INSUFFICIENT HEATING
=NLHA0152
SYMPTOM: Insufficient heating.
INSPECTION FLOW
NHA391
LC-59 (YD)
LC-54 (YD)
LC-57 (YD)
*5: HA-40
TROUBLE DIAGNOSES
Insufficient Heating
HA-83
Noise
TROUBLE DIAGNOSIS PROCEDURE FOR NOISE
=NLHA0158
SYMPTOM:
+
Noise
INSPECTION FLOW
NHA395
*1: —
*2: —
*3: HA-87
EM-166 (YD)
LC-59 (YD)
TROUBLE DIAGNOSES
Noise
HA-84
HFC-134a (R-134a) Service Procedure
NLHA0159
SETTING OF SERVICE TOOLS AND EQUIPMENT
NLHA0159S01
Discharging Refrigerant
NLHA0159S0101
WARNING:
Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Remove HFC-134a (R-134a) from A/C system using certified service equipment meeting require-
ments of HFC-134a (R-134a) recycling equipment or HFC-134a (R-134a) recovery equipment. If acci-
dental system discharge occurs, ventilate work area before resuming service. Additional health and
safety information may be obtained from refrigerant and lubricant manufacturers.
SHA539DE
Evacuating System and Charging Refrigerant
NLHA0159S0102
SHA540DC
SERVICE PROCEDURE
HFC-134a (R-134a) Service Procedure
HA-85
Maintenance of Lubricant Quantity in
Compressor
NLHA0160
The lubricant in the compressor circulates through the system with
the refrigerant. Add lubricant to compressor when replacing any
component or after a large gas leakage occurred. It is important to
maintain the specified amount.
If lubricant quantity is not maintained properly, the following mal-
functions may result:
+
Lack of lubricant: May lead to a seized compressor
+
Excessive lubricant: Inadequate cooling (thermal exchange
interference)
LUBRICANT
NLHA0160S01
Name: Nissan A/C System Oil Type S for CSV613 compressor
Part number: KLH00-PAGS0
CHECKING AND ADJUSTING
NLHA0160S02
Adjust the lubricant quantity according to the test group shown
below.
1
LUBRICANT RETURN OPERATION
Can lubricant return operation be performed?
+
A/C system works properly.
+
There is no evidence of a large amount of lubricant leakage.
Yes or No
Yes
©
GO TO 2.
No
©
GO TO 3.
2
PERFORM LUBRICANT RETURN OPERATION, PROCEEDING AS FOLLOWS
1. Start engine, and set the following conditions:
+
Test condition
Engine speed: Idling to 1,200 rpm
A/C or AUTO switch: ON
Blower speed: Max. position
Temp. control: Optional [Set so that intake air temperature is 25 to 30°C (77 to 86°F).]
2. Perform lubricant return operation for about 10 minutes.
3. Stop engine.
CAUTION:
If excessive lubricant leakage is noted, do not perform the lubricant return operation.
©
GO TO 3.
3
CHECK COMPRESSOR
Should the compressor be replaced?
Yes or No
Yes
©
GO TO HA-89.
No
©
GO TO 4.
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor
HA-87
4
CHECK ANY PART
Is there any part to be replaced? (Evaporator, condenser, liquid tank or in case there is evidence of a large amount of
lubricant leakage.)
Yes or No
Yes
©
GO TO HA-89.
No
©
Carry out the A/C performance test.
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor (Cont’d)
HA-88
Lubricant Adjusting Procedure for Components
Replacement Except Compressor
=NLHA0160S0201
After replacing any of the following major components, add the
correct amount of lubricant to the system.
Amount of lubricant to be added
Part replaced
Lubricant to be added to
system
Remarks
Amount of lubricant
m
!
(Imp fl oz)
Evaporator
75 (2.6)
—
Condenser
75 (2.6)
—
Liquid tank
5 (0.2)
Add if compressor is not
replaced. *1
In case of refrigerant
leak
30 (1.1)
Large leak
—
Small leak *2
*1:
If compressor is replaced, addition of lubricant is included in the table.
*2:
If refrigerant leak is small, no addition of lubricant is needed.
Lubricant Adjustment Procedure for Compressor
Replacement
NLHA0160S0202
1.
Discharge refrigerant into the refrigerant recovery/recycling
equipment. Measure lubricant discharged into the recovery/
recycling equipment.
2.
Drain the lubricant from the “old” (removed) compressor into a
graduated container and recover the amount of lubricant
drained.
3.
Drain the lubricant from the “new” compressor into a separate,
clean container.
4.
Measure an amount of new lubricant installed equal to amount
drained from “old” compressor. Add this lubricant to “new” com-
pressor through the suction port opening.
5.
Measure an amount of new lubricant equal to the amount
recovered during discharging. Add this lubricant to “new” com-
pressor through the suction port opening.
6.
If the liquid tank also needs to be replaced, add an additional
5 m
!
(0.2 Imp fl oz) of lubricant at this time.
Do not add this 5 m
!
(0.2 Imp fl oz) of lubricant if only
replacing the compressor.
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor (Cont’d)
HA-89
RHA065DH
Compressor
REMOVAL AND INSTALLATION
NLHA0161
NHA392
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor (Cont’d)
HA-90
NHA393
NHA394
SERVICE PROCEDURE
Compressor (Cont’d)
HA-91
Compressor Clutch — CSV613 (CALSONIC
make)
OVERHAUL
=NLHA0211
RHA805H
RHA136E
REMOVAL
NLHA0212
+
When removing center bolt, hold clutch disc with clutch disc
wrench.
RHA399FA
SERVICE PROCEDURE
Compressor Clutch — CSV613 (CALSONIC make)
HA-92
RHA124FA
+
Remove the clutch disc using the clutch disc puller.
Insert the holder’s three pins into the holes in the clutch disc.
Rotate the holder clockwise to hook it onto the plate. Then,
tighten the center bolt to remove the clutch disc.
After removing the clutch disc, remove the shims from either
the drive shaft or the clutch disc.
RHA138E
+
Remove the snap ring using external snap ring pliers.
RHA139E
+
Pulley removal
Position the center pulley puller on the end of the drive shaft,
and remove the pulley assembly using any commercially avail-
able pulley puller.
To prevent the pulley groove from being deformed, the
puller claws should be positioned onto the edge of the
pulley assembly.
RHA806H
+
Remove the connector from the connector bracket.
RHA145E
+
Remove the snap ring using external snap ring pliers.
SERVICE PROCEDURE
Compressor Clutch — CSV613 (CALSONIC make) (Cont’d)
HA-93
RHA126F
INSPECTION
NLHA0213
Clutch Disc
NLHA0213S01
If the contact surface shows signs of damage due to excessive
heat, replace clutch disc and pulley.
Pulley
NLHA0213S02
Check the appearance of the pulley assembly. If the contact sur-
face of pulley shows signs of excessive grooving, replace clutch
disc and pulley. The contact surfaces of the pulley assembly should
be cleaned with a suitable solvent before reinstallation.
Coil
NLHA0213S03
Check coil for loose connection or cracked insulation.
RHA142E
INSTALLATION
NLHA0214
+
Install the field coil.
Be sure to align the coil’s pin with the hole in the com-
pressor’s front head.
+
Install the field coil harness clip using a screwdriver.
RHA143E
+
Install the pulley assembly using the installer and a hand
press, and then install the snap ring using snap ring pliers.
RHA127F
+
Install the clutch disc on the drive shaft, together with the
original shim(s). Press the clutch disc down by hand.
SERVICE PROCEDURE
Compressor Clutch — CSV613 (CALSONIC make) (Cont’d)
HA-94
RHA086E
+
Using the holder to prevent clutch disc rotation, tighten the bolt
to 14 N·m (1.4 kg-m, 10 ft-lb) torque.
After tightening the bolt, check that the pulley rotates
smoothly.
RHA087E
+
Check clearance around the entire periphery of clutch disc.
Disc-to-pulley clearance:
0.3 - 0.6 mm (0.012 - 0.024 in)
If the specified clearance is not obtained, replace adjusting
spacer and readjust.
Break-in Operation
NLHA0214S01
When replacing compressor clutch assembly, always carry out the
break-in operation. This is done by engaging and disengaging the
clutch about thirty times. Break-in operation raises the level of
transmitted torque.
Heater & Cooling Unit (Heater Core)
REMOVAL
NLHA0193
RHA807H
SERVICE PROCEDURE
Compressor Clutch — CSV613 (CALSONIC make) (Cont’d)
HA-95
1.
Drain the cooling system. Refer to LC-19 (QG), LC-38 (SR),
LC-59 (YD), “Changing Engine Coolant”.
2.
Discharge the A/C system. Refer to HA-85.
3.
Disconnect the two heater hoses from inside the engine com-
partment.
4.
Remove the blower unit. Refer to HA-97.
5.
Remove the steering member assembly. Refer to BT-22,
“Instrument Panel Assembly”.
6.
Remove the heater unit.
7.
Separate the heater & cooling unit case, and remove the
heater core.
INSTALLATION
NLHA0194
Install in the reverse order of removal.
When filling radiator with coolant, refer to LC-20 (QG), LC-38
(SR), LC-60 (YD), “Refilling Engine Coolant”.
Recharge the A/C system. Refer to HA-85.
RHA673H
A/C Evaporator
REMOVAL
NLHA0204
1.
Discharge the A/C system. Refer to HA-85.
2.
Disconnect the two refrigerant lines from the engine compart-
ment.
Cap the A/C lines to prevent moisture from entering the sys-
tem.
3.
Remove the grommet cover, grommet and expansion valve
cover from the engine compartment.
4.
Remove the glove box, instrument lower assist panel and
instrument lower cover. Refer to BT-22.
RHA674H
5.
Remove the five screws fixed heater & cooling unit lower
cover.
6.
Slide the A/C evaporator to rear side.
7.
Slide the heater & cooling unit lower cover to rear side and
then remove it.
8.
Slide the A/C evaporator to the front side and then remove the
A/C evaporator.
INSTALLATION
NLHA0205
Install in the reverse order of removal.
Recharge the A/C system. Refer to HA-85.
SERVICE PROCEDURE
Heater & Cooling Unit (Heater Core) (Cont’d)
HA-96
Blower Unit
REMOVAL
NLHA0195
RHA676HA
1.
Remove the instrument panel assembly. Refer to BT-22,
“Instrument Panel Assembly”.
2.
Disconnect the blower motor and resistor connector.
3.
Remove blower unit.
INSTALLATION
NLHA0196
Install in the reverse order of removal.
SERVICE PROCEDURE
Blower Unit
HA-97
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст