Nissan Primera P11. Instruction — part 487
Recovered lubricant. HA-100.
Set the recovery/recycling equip-
ment.
Discharge refrigerant into recovery/
recycling equipment.
Repair or replace parts.
Evacuate the unwanted air in
charging hoses.
Evacuating (over 25 minutes).
E
Check airtightness
*-1
E
Repair.
Partial charging [approx. 200 g
(7.05 oz)].
Preliminary refrigerant leak check.
*-1
E
Repair.
Complete charging [specified
amount -200 g (7.05 oz)]
*-2
Check for refrigerant leaks.
E
Repair.
Check for A/C operation and A/C
cooling performance
Remove service couplers from A/C
service valves.
Recover refrigerant in charging
hoses.
Remove service tools.
Note: *-1 Before charging refrigerant, ensure engine is OFF.
*-2 Before checking for leaks, start engine to activate air conditioner system then turn it OFF.
Service valve caps must be attached to valves (to prevent leakage).
H
H
H
H
H
H
H
H
H
H
H
H
H
SERVICE PROCEDURES
AUTO
HFC-134a (R-134a) Service Procedure
(Cont’d)
HA-101
Maintenance of Lubricant Quantity in
Compressor
The lubricant used to lubricate 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
CR-14
Name: Nissan A/C System Oil Type R
Part number: KLH00-PAGR0
CSV613
Name: Nissan A/C System Oil Type S
Part number: KLH00-PAGS0
CHECKING AND ADJUSTING
Adjust the lubricant quantity according to the flowchart shown
below.
START
Can lubricant return operation be per-
formed?
●
A/C system works properly.
●
There is no evidence of a large amount
of lubricant leakage.
No
E
Yes
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. Next item is for CSV613 compressor. Connect the manifold
gauge, and check that the high pressure side pressure is
588
kPa (5.9 bar, 6 kg/cm
2
, 85 psi) or higher.
If less than the reference level, attach a cover to the front face
of the condenser to raise the pressure.
3. Perform lubricant return operation for about 10 minutes.
4. Stop engine.
CAUTION:
If excessive lubricant leakage is noted, do not perform the lubri-
cant return operation.
Should the compressor be replaced?
No
Yes
F
p
A
(Go to next page.)
Is there any part to be replaced?
(Evaporator, condenser, liquid tank or in
case there is evidence of a large amount
of lubricant leakage.)
No
E
Yes
After replacing any of the following major components, add the correct
amount of lubricant to the system.
Amount of lubricant to be added
*1: If compressor is replaced, addition of lubricant is included in the
flow chart.
*2: If refrigerant leak is small, no addition of lubricant is needed.
Carry out the A/C performance test.
F
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
H
H
H
H
H
SERVICE PROCEDURES
AUTO
HA-102
p
A
H
1.Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure lubricant discharged into the recovery/
recycling equipment.
2. Remove the drain plug of the “old”(removed) compressor (applicable only to V-5, V-6, DKS-16H or DKS-17CH com-
pressor). Drain the lubricant into a graduated container and recordthe amount of drained lubricant.
3. Remove the drain plugand drain the lubricant from the “new” compressor into aseparate, clean container.
4. Measure an amount of newlubricant installed equal to amount drained from “old” compressor. Add this lubricant to
“new” compressor through thesuction port opening.
5. Measure an amount of new lubricant equal to the amount recovered during discharging. Add this lubricant to “new”
compressor through the suction port opening.
6.Torque the drain plug.
CWV618 or CSV613compressor: 18 - 19 (1.8 - 1.9 kg-m, 13 - 14 ft-lb)
DKS-16Hcompressor: 14 - 16 (1.4 - 1.6 kg-m, 10 - 12 ft-lb)
DKS-17CHcompressor: 14 - 16 (1.4 - 1.6 kg-m, 10 - 12ft-lb)
7. If the liquid tank also needs tobe replaced, add an additional 5 m
(0.2 Imp fl oz) of lubricant atthis time.
Do not add this 5 m
(0.2 Imp fl oz) of lubricantif only replacing thecompressor.
RHA065DD
Recovery/
Recycling
equipment
Old
compressor
New
compressor
Record amount
Record amount
Drain lubricant
from new com-
pressor into clean
container
Reinstall
“X” m + “Y” m
of newlubricant
New
lubricant
New
compressor
Add an additional
5 m (0.2 US fl oz,
0.2 Imp fl oz) ofnew
lubricant when
replacing liquid
tank.
SERVICE PROCEDURES
AUTO
Maintenance of Lubricant Quantity in
Compressor (Cont’d)
HA-103
Refrigerant Lines
●
Refer to page HA-4 regarding “Precautions for Refrigerant-
Connection”.
LHD MODELS
KHA051
Expansion valve
Hexagonal socket screw
2.9 - 4.4N·m
(0.3 - 0.45 kg-m,
26.0 - 39.1 in-lb)
SEC. 271
⋅
274
⋅
276
KHA052
SEC. 271
⋅
274
⋅
276
p
G
p
B
p
H
p
A
p
F
Pressure switch
p
D
p
C
p
E
p
: Refrigerant leak checking order
l
: (Tightening torque)
l l
: (Wrench size)
l
: (O-ring size)
: N·m (kg-m, ft-lb)
: 25 - 34 (2.5 - 3.5, 18 - 25)
: N·m (kg-m, in-lb)
: 10 - 20 (1.0 - 2.0, 87 - 174)
: 3 - 4 (0.3 - 0.4, 26 - 35)
: 8 - 11 (0.8 - 1.1, 69 - 95)
17 19
SERVICE PROCEDURES
AUTO
HA-104
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст