A/c Compressor Oil Checking Dodge Caravan II

COMPRESSOR APPLICATIONS - PASSENGER CARS

COMPRESSOR APPLICATIONS - PASSENGER CARS

COMPRESSOR APPLICATIONS - LIGHT TRUCKS & VANS

COMPRESSOR APPLICATIONS - LIGHT TRUCKS & VANS

BODY CODE DESIGNATIONS - PASSENGER CARS

BODY CODE DESIGNATIONS - PASSENGER CARS

BODY CODE DESIGNATIONS - LIGHT TRUCKS & VANS

BODY CODE DESIGNATIONS - LIGHT TRUCKS & VANS

REFRIGERANT OIL

Only new, pure, moisture-free refrigerant oil should be used in A/C systems. This oil is highly refined with a very low moisture content. Oil container must be tightly closed at all times when not in use, or moisture from the air will be absorbed into the refrigerant oil.

On systems with HFC-134a refrigerant, use Polyalkylene Glycol (PAG) wax-free refrigerant oil.

DISCHARGING SYSTEM

If compressor has stem-type service valves, it can be isolated and removed without discharging entire system. Otherwise, discharge system using approved refrigerant recovery/recycling equipment completely before loosening any fittings.

DISCONNECTING LINES & FITTINGS

After system is discharged, carefully clean area around all fittings to be opened. Always use 2 wrenches when tightening or loosening fittings. Some refrigerant lines are connected with a coupling. Special tools may be required to disconnect lines. Cap or plug all openings as soon as lines are removed. DO NOT remove caps until connections of lines and fittings are completed.

Note. All HFC-134a based systems use 1/2-16 ACME threaded fittings.

CONNECTING LINES & FITTINGS

Note. Different fittings and connections are used on systems using HFC-134a refrigerant. Ensure all replacement parts match the connections of the system being worked on.

Always use a new gasket or "O" ring when connecting lines or fittings. Coat "O" ring with refrigerant oil and ensure it is not twisted during installation. Always use 2 wrenches to prevent damage to lines and fittings.

PLACING SYSTEM IN OPERATION

After component service or replacement has been completed, evacuate system thoroughly with a vacuum pump. Charge system with proper amount of refrigerant. See the A/C SYSTEM SPECS article in this section. Perform leak test. After system has been leak tested, check system operation.

Note. A/C systems normally will not need additional refrigerant oil unless oil loss has occurred due to ruptured lines, leaking compressor seals, compressor overhaul or component replacement.

CHRYSLER C-171 6-CYLINDER

1. Slowly discharge system using approved refrigerant recovery/recycling equipment. Disconnect refrigerant hoses at compressor. Remove compressor mounting bolts, and remove compressor.
2. Remove suction port on top of compressor, and drain oil. Add proper amount of refrigerant oil to compressor (total system capacity minus amount retained in components that have not been replaced). See C-171 COMPONENT REFRIGERANT OIL CAPACITIES table below. Refer to the A/C SYSTEM SPECS article in this section for total A/C system capacities.
3. Install compressor. Evacuate and recharge A/C system. Perform leak test.

C-171 COMPONENT REFRIGERANT OIL CAPACITIES

NIPPONDENSO 6C-17 6-CYLINDER

1. Slowly discharge system using approved refrigerant recovery/recycling equipment. Disconnect refrigerant hoses at compressor. Remove compressor mounting bolts, and remove compressor.
2. Remove suction port on top of compressor, and drain oil. Add proper amount of refrigerant oil to compressor (total system capacity minus amount retained in components that have not been replaced). See 6C-17 COMPONENT REFRIGERANT OIL CAPACITIES table. See A/C SYSTEM SPECS article in this section for total system capacity.
3. Install compressor. Evacuate and recharge A/C system. Perform leak test.

6C-17 COMPONENT REFRIGERANT OIL CAPACITIES

Chrysler Motors (Laser & Talon)

Add specified amounts if components are changed. See 10PA17 COMPONENT REFRIGERANT OIL CAPACITIES (LASER & TALON) table.

10PA17 COMPONENT REFRIGERANT OIL CAPACITIES LASER & TALON)

Chrysler Motors (Except Laser & Talon)

1) Slowly discharge system using approved refrigerant recovery/recycling equipment. Disconnect refrigerant hoses at compressor. Remove compressor mounting bolts, and remove compressor.

2) Remove suction port on top of compressor, and drain oil. Add proper amount of refrigerant oil to compressor (total system capacity minus amount retained in components that have not been replaced). See 10PA17 COMPONENT REFRIGERANT OIL CAPACITIES (EXCEPT LASER & TALON) table. See the A/C SYSTEM SPECS article in this section for total system capacity.

3) Install compressor. Evacuate and recharge A/C system. Perform leak test.

10PA17 COMPONENT REFRIGERANT OIL CAPACITIES EXCEPT LASER & TALON)

Scheme 11

1. Start and operate engine at high idle with A/C on for 15 minutes. Stop engine. Connect manifold gauge set to compressor service valves. Ensure valves on gauge set are closed. Place both valves on compressor in mid position. Start engine, and operate A/C.
2. Slowly turn compressor suction valve clockwise toward closed (front-seated) position. When suction pressure is reduced to zero, turn engine and compressor off, and quickly turn suction valve stem inward to full front-seated position. Turn discharge valve into front-seated position.
3. Loosen oil level plug to release internal pressure in the compressor. Compressor is now isolated from the rest of the system, and service valves can be removed from compressor.
4. Remove compressor oil plug. Look through oil fill plug hole, and rotate compressor crankshaft to allow Dipstick (6465) to be fully inserted. Insert Dipstick (6465), and measure oil. (Scheme 11) Each mark on dipstick represents one increment.
5. Place angle gauge across flat areas on mounting ears. Determine amount of oil needed according to mounting angle. See SD-709 COMPRESSOR OIL INCREMENT CAPACITIES table for specified amount.
6. If necessary, correct compressor oil level. Install compressor oil plug, and tighten it to 72-108 INCH lbs. (8-12 N.m). Evacuate and recharge A/C system. Perform leak test.

SD-709 COMPRESSOR OIL INCREMENT CAPACITIES

SANDEN TR-105 10-CYLINDER

1. Slowly discharge system using approved refrigerant recovery/recycling equipment. Disconnect refrigerant hoses at compressor. Remove compressor mounting bolts, and remove compressor.
2. Remove suction port on top of compressor, and drain oil. When repairing A/C systems with excessive leak(s), add additional oil.
3. Add proper amount of refrigerant oil to compressor (total system capacity minus amount retained in components that have not been replaced). See TR-105 COMPONENT REFRIGERANT OIL CAPACITIES table. See A/C SYSTEM SPECS article in this section for total system capacity.
4. Install compressor. Evacuate and recharge A/C system. Perform leak test.

TR-105 COMPONENT REFRIGERANT OIL CAPACITIES

PASSENGER CAR REFRIGERANT OIL & R-12 CAPACITY

PASSENGER CAR REFRIGERANT OIL & R-12 CAPACITY

LIGHT TRUCK & VAN REFRIGERANT OIL & R-12 CAPACITY

LIGHT TRUCK & VAN REFRIGERANT OIL & R-12 CAPACITY