Nissan Almera Tino V10. Manual — part 203
ATC-8
PRECAUTIONS
Precautions for Service Equipment
EJS002ZN
RECOVERY/RECYCLING EQUIPMENT
Be certain to follow the manufacturers instructions for machine operation and machine maintenance. Never
introduce any refrigerant other than that specified into the machine.
ELECTRONIC LEAK DETECTOR
Be certain to follow the manufacturer
′
s instructions for tester operation and tester maintenance.
VACUUM PUMP
The lubricant contained inside the vacuum pump is not compatible
with the specified lubricant for HFC-134a (R-134a) A/C systems.
The vent side of the vacuum pump is exposed to atmospheric pres-
sure. So the vacuum pump lubricant may migrate out of the pump
into the service hose. This is possible when the pump is switched off
after evacuation (vacuuming) and hose is connected to it.
To prevent this migration, use a manual valve placed near the hose-
to-pump connection, as follows.
●
Usually vacuum pumps have a manual isolator valve as part of
the pump. Close this valve to isolate the service hose from the
pump.
●
For pumps without an isolator, use a hose equipped with a man-
ual shut-off valve near the pump end. Close the valve to isolate
the hose from the pump.
●
If the hose has an automatic shut off valve, disconnect the hose
from the pump. As long as the hose is connected, the valve is
open and lubricating oil may migrate.
Some one-way valves open when vacuum is applied and close
under a no vacuum condition. Such valves may restrict the pump
′
s
ability to pull a deep vacuum and are not recommended.
MANIFOLD GAUGE SET
Be certain that the gauge face indicates HFC-134a (R-134a) or
134a. Be sure the gauge set has 1/2
″
-16 ACME threaded connec-
tions for service hoses. Confirm the set has been used only with
refrigerant HFC-134a (R-134a) and specified lubricants.
SERVICE HOSES
Be certain that the service hoses display the markings described
(colored hose with black stripe). All hoses must include positive shut
off devices (either manual or automatic) near the end of the hoses
opposite the manifold gauge.
RHA270DA
SHA533D
RHA272D
PRECAUTIONS
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SERVICE COUPLERS
Never attempt to connect HFC-134a (R-134a) service couplers to an
CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-12) system. However, if an
improper connection is attempted, discharging and contamination
may occur.
REFRIGERANT WEIGHT SCALE
Verify that no refrigerant other than HFC-134a (R-134a) and speci-
fied lubricants have been used with the scale. If the scale controls
refrigerant flow electronically, the hose fitting must be 1/2
″
-16
ACME.
CALIBRATING ACR4 WEIGHT SCALE
Calibrate the scale every three months.
To calibrate the weight scale on the ACR4:
1.
Press Shift/Reset and Enter at the same time.
2.
Press 8787 . “A1 ” will be displayed.
3.
Remove all weight from the scale.
4.
Press 0 , then press Enter . “0.00 ” will be displayed and change to “A2 ”.
5.
Place a known weight (dumbbell or similar weight), between 4.5 and 8.6 kg (10 and 19 lb) on the center of
the weight scale.
6.
Enter the known weight using four digits. (Example 10 lb = 10.00, 10.5 lb = 10.50)
7.
Press Enter — the display returns to the vacuum mode.
8.
Press Shift/Reset and Enter at the same time.
9.
Press 6 — the known weight on the scale is displayed.
10. Remove the known weight from the scale. “0.00 ” will be displayed.
11. Press Shift/Reset to return the ACR4 to the program mode.
CHARGING CYLINDER
Using a charging cylinder is not recommended. Refrigerant may be vented into air from cylinder
′
s top valve
when filling the cylinder with refrigerant. Also, the accuracy of the cylinder is generally less than that of an
electronic scale or of quality recycle/recharge equipment.
Precautions for Leak Detection Dye
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●
The A/C system contains a fluorescent leak detection dye used for locating refrigerant leaks. An ultraviolet
(UV) lamp is required to illuminate the dye when inspecting for leaks.
●
Always wear fluorescence enhancing UV safety goggles to protect your eyes and enhance the visibility of
the fluorescent dye.
●
The fluorescent dye leak detector is not a replacement for an electronic refrigerant leak detector. The fluo-
rescent dye leak detector should be used in conjunction with an electronic refrigerant leak detector to (J-
41995) pin-point refrigerant leaks.
●
For your safety and your Customer
′
s satisfaction, read and follow all manufacture
′
s operating instructions
and precautions prior to performing the work.
Shut-off valve rotation
A/C service valve
Clockwise
Open
Counterclockwise
Close
RHA273D
RHA274D
ATC-10
PRECAUTIONS
●
A compressor shaft seal should not be repaired because of dye seepage. The compressor shaft seal
should only be repaired after confirming the leak with an electronic refrigerant leak detector (J-41995).
●
Always remove any remaining dye from the leak area after repairs are complete to avoid a misdiagnosis
during a future service.
●
Do not allow dye to come into contact with painted body panels or interior components. If dye is spilled,
clean immediately with the approved dye cleaner. Fluorescent dye left on a surface for an extended period
of time cannot be removed.
●
Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).
●
Do not use more than one refrigerant dye bottle (1/4 ounce / 7.4 cc) per A/C system.
●
Leak detection dyes for HFC-134a (R-134a) and CFC-12 (R-12) A/C systems are different. Do not use
HFC-134a (R-134a) leak detection dye in CFC-12 (R-12) A/C system or CFC-12 (R-12) leak detector dye
in HFC-134a (R-134a) A/C systems or A/C system damage may result.
●
The fluorescent properties of the dye will remain for over three (3) years unless a compressor malfunction
occurs.
IDENTIFICATION
NOTE:
Vehicles with factory installed fluorescent dye have a green label.
Vehicles without factory installed fluorescent dye have a blue label.
IDENTIFICATION LABEL FOR VEHICLE
Vehicles with factory installed fluorescent dye have this identification label on the front side of hood.
Wiring Diagrams and Trouble Diagnosis
EJS002ZP
When you read wiring diagrams, refer to the followings:
●
GI-11, “How to Read Wiring Diagram” in GI section.
●
EL-11, “Power Supply Routing” in EL section.
When you perform trouble diagnosis, refer to the followings:
●
GI-21, “How to Perform Efficient Diagnosis for an Electrical Incident” in GI section.
●
GI-31, “How to Follow Trouble Diagnosis” in GI section.
MJIA0001E
PREPARATION
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PREPARATION
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Special Service Tools
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HFC-134a (R-134a) Service Tools and Equipment
EJS002ZR
Never mix HFC-134a (R-134a) refrigerant and/or its specified lubricant with CFC-12 (R-12) refrigerant and/or
its lubricant.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/lubri-
cant.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles
refrigerant and/or lubricant) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid
mixed use of the refrigerants/lubricant.
Adapters that convert one size fitting to another must never be used: refrigerant/lubricant contamination will
occur and compressor malfunction will result.
Tool number
Tool name
Description
KV99106100
Clutch disc wrench
Removing shaft nut and clutch disc
KV99232340
or
KV992T0001
Clutch disc puller
Removing clutch disc
KV99106200
Pulley installer
Installing pulley
S-NT232
RJIA0194E
S-NT376
S-NT235
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