Nissan Silvia. Manual — part 282
Maintenance of Lubricant Quantity in
Compressor
NMHA0095
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. It is important to maintain
the specified amount. If lubricant quantity is not maintained
properly, the following malfunctions may result:
I
Lack of lubricant: May lead to a seized compressor
I
Excessive lubricant: Inadequate cooling (thermal exchange
interference)
LUBRICANT
NMHA0095S01
Name: Nissan A/C System Oil Type R
Part number: KLH00-PAGR0
CHECKING AND ADJUSTING
NMHA0095S02
Adjust the lubricant quantity according to the test group shown
below.
1
LUBRICANT RETURN OPERATION
Can lubricant return operation be performed?
I
A/C system works properly.
I
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-80.
No
©
GO TO 4.
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-80.
No
©
Carry out the A/C performance test.
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
SC
EL
IDX
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor
HA-79
Lubricant Adjusting Procedure for Components
Replacement Except Compressor
NMHA0095S0201
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
(US fl oz, Imp fl oz)
Evaporator
75 (2.5, 2.6)
—
Condenser
35 (1.2, 1.2)
—
Liquid tank
10 (0.3, 0.4)
Add if compressor is not
replaced. *1
In case of refrigerant
leak
30 (1.0, 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
NMHA0095S0202
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 replac-
ing the compressor.
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor (Cont’d)
HA-80
RHA065DJ
Compressor
REMOVAL AND INSTALLATION
NMHA0287
ZHA073H
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
SC
EL
IDX
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor (Cont’d)
HA-81
Compressor Clutch — DKV-11G (ZEXEL make)
OVERHAUL
NMHA0280
RHA668H
RHA669H
REMOVAL
NMHA0281
I
Remove the two screws holding the connector bracket, ther-
mal protector to the compressor.
SHA097EA
I
When removing center bolt, hold clutch disc with clutch disc
wrench.
ZHA093H
I
Remove the drive plate using the clutch disc puller.
Insert holder’s three pins into the drive plate. Rotate the holder
clockwise to hook it onto the plate. Tighten the center bolt to
remove the drive plate.
While tightening the center bolt, insert a screwdriver between
two of the pins (as shown in the figure) to prevent rotation.
After removing the drive plate, remove the shims from either
the drive shaft or the drive plate.
SERVICE PROCEDURE
Compressor Clutch — DKV-11G (ZEXEL make)
HA-82
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