GM Astro/Safari 1985-1996 Repair Guide

Accumulator

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See Figure 1



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Fig. Fig. 1: Accumulator assembly

REMOVAL & INSTALLATION



The accumulator is a large aluminum can connected to the evaporator. The unit is in charge of storing refrigerant, removing moisture and filter the system.

  1. Discharge the air conditioning system as outlined in General Information & Maintenance . The system should be discharged by a qualified technician with proper recovery equipment. It is illegal to discharge refrigerant into the atmosphere and you may need a permit to purchase new refrigerant. If you do not possess the proper equipment, training and permits to perform refrigerant recovery, allow a repair shop to do that step for you.
  2.  
  3. Disconnect the negative battery cable and pressure relief switch connector.
  4.  
  5. Disconnect and plug the accumulator inlet and outlet.
  6.  
  7. Cap the open lines immediately after removal.
  8.  
  9. Remove the accumulator retaining screws and accumulator.
  10.  

To install:
  1. Install 2 fluid oz. (60 ml) of 525 viscosity refrigerant oil into the new accumulator.
  2.  
  3. Install the accumulator with new O-rings.
  4.  
  5. Connect the two pipes to the unit.
  6.  
  7. Evacuate and recharge the system as outlined in General Information & Maintenance of this guide.
  8.  

 
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