Impulse L4-2254cc 2.3L SOHC (1988)
Refrigerant: Service and Repair
3. Charging
With Charging Station
To charge system using a charging station, follow instructions provided with unit and observe the following precautions:
1.
Do not connect high pressure line to A/C system.
2.
Always keep high pressure valve on charging station closed.
3.
Perform all evacuation and charging through low side pressure service fitting.
4.
Use approved refrigerant recovery equipment.
5.
When charging is complete, disconnect equipment and check for leaks.
6.
Run engine for a few minutes with A/C system operating and check for proper system pressures.
With Bulk Container
1.
Warm engine to operating temperature. Turn A/C "OFF."
2.
With R-12 drum inverted, open valve and allow 1 lb. of liquid R-12 to flow into system through low-side service fitting.
3.
When 1 lb. of refrigerant has entered system, turn drum upright and engage compressor to draw in remainder of charge. Cooling condenser with a
large fan will speed up charging procedure by maintaining condenser temperature below charging cylinder temperature.
4.
Close refrigerant supply valve and run engine for 30 seconds to clear lines and gauges.
5.
With engine running, remove charging low side hose adapter from service fitting.
NOTE: Do not remove gauge line from adapter when line is connected to A/C system. To disconnect line, always remove line adapter from
service fitting. Do not remove charging hose at gauge set while attached to service fitting. System will be discharged due to depressed
Schrader valve.
6.
Replace protective cap on service fitting and turn engine off.
7.
Check system for leaks.
8.
Start engine and check for proper system pressures.