Instructions For '90-94 Justy MPFI

NOTES:

1. Always lubricate all O-rings with PAG oil before Installation.
2. Always use back-up wrench.
3. Always torque fittings (refer to torque chart).

1. Repair any problems or leaks before beginning of retrofit.

2. Observe all safety recommendations. System to be serviced by qualified personnel.

3. It the R-12 vehicle air conditioning system is operational, run it at idle with the A/C blower on high speed for (5) minutes to optimize the amount of oil in the compressor.

4. Recover all R-12 refrigerant from the vehicles A/C system utilizing a UL approved R-12 recovery device.

5. Remove and discard hose assembly, retain all hardware. i.e. clips, bolts, etc..)

6. Remove the compressor from the vehicle.

7. Remove the compressor oil plug and then drain as much mineral oil as possible from the compressor body. Drain mineral oil from the cylinder head suction and discharge ports while turning the shaft with a socket wrench on the clutch armature retaining nut.

8. Replace the compressor oil plug O-ring with an HNBR O'ring supplied in the retrofit kit. Reinstall compressor oil plug to the compressor.

9. Reinstall the compressor. Change the (2) O-rings with a HNBR O'ring supplied in retrofit kits on the compressor. Lubricate O-rings before installing.

10. Install new hose assembly (provided in kit) using O.E. hardware. Lubricate O-rings before installing.

11. Remove the existing R-12 receiver-drier from the vehicle and discard. Allow as much oil as possible to drain from A/C hoses or pipes.

12. Change the (2) O-rings on the receiver-drier to approved HNBR O-rings supplied in this retrofit kit. Lubricate O-rings before installing.

13. Replace the receiver-drier with the new receiver-drier supplied in this kit. CAUTION: This rec-drier has the proper amount of Sanden's SP20 PAG oil, and caution should be taken when uncapping the rec-drier to avoid spilling any of the oil from the receiver-drier. Receiver-drier should be un-capped as little time as possible to avoid getting moisture in the receiver-drier. Since the PAG oil is highly hygroscopic (draws moisture).

14. Paint the receiver drier sight glass with touch-up paint. The sight glass cannot be utilized in testing R-134a performance.

15. Evacuate the system for 45 minutes using R-134a equipment.

16. Charge the system with 20.9 oz. of R-134a refrigerant. Leak check the system using R-134a refrigerant equipment.

17. Fill out label by lifting mylar laminate overlay and fill in type with PAG oil, PN: with SP20. Refrigerant charge/amount will be 20.9 oz. with lubricant amount being 135cc, place a check mark in the box indicating PAG. Fill in retrofitter's name, address and date of retrofit.

18. Locate and clean original R-12 A/C tag under the vehicle hood, remove paper backing from new R-134a tag and position over old tag. NOTE: Cover as much of the old R-12 tag as possible with new R-134a tag.