Infiniti G20 (P11). Manual — part 466
Lubricant Adjusting Procedure for Components
Replacement Except Compressor
=NCHA0160S0201
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
75 (2.5, 2.6)
—
Liquid tank
5 (0.2, 0.2)
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
NCHA0160S0202
1.
Before connecting ACR4 to vehicle, check ACR4 gauges. No
refrigerant pressure should be displayed. If OK, recover refrig-
erant from equipment lines.
2.
Confirm refrigerant purity in supply tank using ACR4 and refrig-
erant
identifier.
If
NG,
refer
to
“CONTAMINATED
REFRIGERANT”, HA-124.
3.
Connect ACR4 to vehicle. Confirm refrigerant purity in vehicle
A/C system using ACR4 and refrigerant identifier. If NG, refer
to “CONTAMINATED REFRIGERANT”, HA-124.
4.
Discharge refrigerant into the refrigerant recovery/recycling
equipment. Measure lubricant discharged into the recovery/
recycling equipment.
5.
Drain the lubricant from the “old” (removed) compressor into a
graduated container and recover the amount of lubricant
drained.
6.
Drain the lubricant from the “new” compressor into a separate,
clean container.
7.
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.
8.
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.
9.
If the liquid tank also needs to be replaced, add an additional
5 m
(0.2 US fl oz, 0.2 Imp fl oz) of lubricant at this time.
Do not add this 5 m
(0.2 US fl oz, 0.2 Imp fl oz) of lubri-
cant if only replacing the compressor.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
SC
EL
IDX
SERVICE PROCEDURE
MANUAL
Maintenance of Lubricant Quantity in Compressor (Cont’d)
HA-195
RHA065DD
Compressor
REMOVAL AND INSTALLATION
NCHA0161
RHA080H
SERVICE PROCEDURE
MANUAL
Maintenance of Lubricant Quantity in Compressor (Cont’d)
HA-196
Compressor Clutch
OVERHAUL
NCHA0162
RHA668H
RHA082H
REMOVAL
NCHA0163
I
When removing center bolt, hold clutch disc with clutch disc
wrench.
RHA083H
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.
RHA072C
I
Remove the snap ring using external snap ring pliers.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
SC
EL
IDX
SERVICE PROCEDURE
MANUAL
Compressor Clutch
HA-197
RHA068H
RHA074C
I
Pulley removal:
Use a commercially available pulley puller. Position the center
of the puller on the end of the drive shaft. Remove the pulley
assembly with the puller.
For pressed pulleys:
To prevent deformation of the pulley groove, the puller
claws should be hooked under (not into) the pulley
groove.
For machine latched pulleys:
Align the pulley puller groove with the pulley groove, and
then remove the pulley assembly.
I
Remove the snap ring using external snap ring pliers.
I
Remove the field coil harness clip using a screwdriver. the
three field coil fixing screws and remove the field coil.
RHA075C
INSPECTION
NCHA0164
Clutch Disc
NCHA0164S01
If the contact surface shows signs of damage due to excessive
heat, replace clutch disc and pulley.
Pulley
NCHA0164S02
Check the appearance of the pulley assembly. If contact surface 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
NCHA0164S03
Check coil for loose connection or cracked insulation.
RHA076C
INSTALLATION
NCHA0165
I
Install the field coil.
Be sure to align the coil pin with the hole in the compres-
sor front head.
I
Install the field coil harness clip using a screwdriver.
SERVICE PROCEDURE
MANUAL
Compressor Clutch (Cont’d)
HA-198
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