Nissan Armada 2025-2026 Service and Repair Manual: Service Equipment
RECOVERY/RECYCLING RECHARGING EQUIPMENT
Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Never introduce any refrigerant other than that specified into the machine.
ELECTRICAL 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 HFO-1234yf (R-1234yf) A/C systems. The vent side of the vacuum pump is exposed to atmospheric pressure. 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 per the following.
Vacuum pumps usually have a manual isolator valve as part of the pump. Close this valve to isolate the service hose from the pump.
Use a hose equipped with a manual shut-off valve near the pump end for pumps without an isolator. Close the valve to isolate the hose from the pump.
Disconnect the hose from the pump if the hose has an automatic shut-off valve. 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 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 HFO-1234yf or R-1234yf. Be sure the gauge set has threaded connections for HFO-1234yf (R-1234yf) service hoses. Confirm the set has been used only with refrigerant HFO-1234yf (R-1234yf) and specified lubricants.
SERVICE HOSES
All hoses must equip positive shut-off devices (either manual or automatic) near the end of the hoses opposite to the manifold gauge.
SERVICE COUPLERS
Never attempt to connect HFO-1234yf (R-1234yf) service couplers to the CFC-12 (R-12) and HFC-134a (R-134a) A/C system. The HFO-1234yf (R-1234yf) couplers do not properly connect to the CFC-12 (R-12) and HFC-134a (R-134a) system. However, if an improper connection is attempted, discharging and contamination may occur.
| Shut-off valve rotation | A/C service valve |
|---|---|
| Clockwise | Open |
| Counterclockwise | Close |
REFRIGERANT WEIGHT SCALE
Verify that no refrigerant other than HFO-1234yf (R-1234yf) and specified lubricants have been used with the scale. The hose fitting must be 1/2″-16 ACME if the scale controls refrigerant flow electronically.
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 Refrigerant System Service
GENERAL REFRIGERANT PRECAUTION
WARNING:
Never breathe A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and throat. Remove HFO-1234yf (R-1234yf) from the A/C system, using ...
Other materials:
Precautions for Removing Battery Terminal
NOTE:
NOTE:
NOTE:
The removal of 12V battery may cause a DTC detection error.
HOW TO DISCONNECT 12V BATTERY TERMINAL
Disconnect 12V battery terminal according to instruction described below.
Open the hood.
Turn ignition switch to the ON position.
Turn ignition switch to the OFF position with the d ...
Types and Uses of Tinman Shears
(1) STRAIGHT BLADE SHEARS
For cutting straight lines.
(2) CURVED BLADE SHEARS
The blades are smoothly curved. Suitable for straight or curved cutting.
(3) SCOOPED BLADE SHEARS
The entire blade is bent to one side. Suitable for cutting along a sharply curved line.
...
Exploded View
Transmission housing Starter motor cover 1 Starter motor cover 2 “B” terminal harness Starter motor harness connector Starter motor : Vehicle front : N·m (kg-m, in-lb) : N·m (kg-m, ft-lb) : Indicates that the part is connected at points with same symbol in actual vehicle. ...
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