Nissan Sentra manuals

Nissan Sentra Service Manual: Service equipment

RECOVERY/RECYCLING RECHARGING EQUIPMENT

Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Do not 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 oil contained inside the vacuum pump is not compatible with the specified oil for HFC-134a (R-134a) A/C systems. The vent side of the vacuum pump is exposed to atmospheric pressure, so the vacuum pump oil 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 hoseto- pump connection, as per the following.

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


MANIFOLD GAUGE SET

Be certain that the gauge face indicates HFC-134a or R-134a. Be sure the gauge set has 1/2″-16 ACME threaded connections for service hoses. Confirm the set has been used only with refrigerant HFC-134a (R-134a) and specified oils.

SERVICE HOSES


SERVICE HOSES

Be certain that the service hoses display the markings described (colored hose with black stripe). All hoses must equip positive shutoff devices (either manual or automatic) near the end of the hoses opposite to the manifold gauge.

SERVICE COUPLERS


SERVICE COUPLERS

Do not attempt to connect HFC-134a (R-134a) service couplers to the CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers do 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


REFRIGERANT WEIGHT SCALE

Verify that no refrigerant other than HFC-134a (R-134a) and specified oils have been used with the scale. The hose fitting must be 1/ 2″-16 ACME if the scale controls refrigerant flow electronically.

CHARGING CYLINDER


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
WORKING WITH HFC-134a (R-134a) CAUTION: CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. Compressor malfunction is likely to occur if the refrigerants are mixe ...

Preparation
Special service tool The actual shape of the tools may differ from those illustrated here. HFC-134a (r-134a) service tool and equipmen.T. Do not mix HFC-134a (R-134a) refrigerant and/or its s ...

Other materials:

Rear-facing child restraint installation using the seat belts
WARNINGThe three-point seat belt with Automatic Locking Retractor (ALR) must be used when installing a child restraint. Failure to use the ALR mode will result in the child restraint not being properly secured. The restraint could tip over or be loose and cause injury to ...

Tire Pressure Monitoring System (TPMS)
This vehicle is equipped with the Tire Pressure Monitoring System (TPMS). It monitors tire pressure of all tires except the spare. When the low tire pressure warning light is lit, and the CHECK TIRE PRES warning message is displayed in the odometer, one or more of your tires is significantly u ...

Rear bumper
Exploded view Rear bumper side bracket (LH) Rear bumper reinforcement Rear bumper energy absorber Rear bumper fascia reflector (LH) Rear bumper fascia reflector (RH) Rear bumper fascia Rear bumper side bracket (RH) Pawl Removal and installation CAUTION: Bumper fascia is ma ...

© 2014-2020 Copyright www.nisentra.com