How to

Tech Tips for Compressors

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In this article, you will learn more about our technical tips on what to do and not to do for Compressors. 
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Air Conditioning & Thermal Compressors Maintenance Solutions Technical Tip 1 min read


Oil balance the compressor according to the instructions provided with the compressor.

An oil balance will ensure the compressor has the correct amount of compressor lubricant for proper compressor operation.


Leave protective shipping cap in place until assembly of refrigerant lines.

Prevent loss of lubricant and contamination or unit, and absorption of moisture by PAG lubricant. (PAG readily absorbs moisture from the atmosphere.)


Store compressors in the shipping box until ready for installation.

Damage to the clutch, electrical terminals and pressure switches will result if the compressor is handled and/or stored improperly.


Use correct torque control tools:

  • To attach refrigerant lines at the compressor.
  • When installing compressor brackets.
  • When securing the compressor to the engine.  Excessive torque may strip threads in the compressor housing. Under torque will result in loose, damages, or a noisy compressor.


Hand start bolts securing the suction discharge hose set to the compressor. This is a critical requirement.

This will prevent the steel bolt from stripping the threads or cross threading in the aluminum compressor housing.

Do Not 

Set the compressor on either end, stack or subject them to shock at any time. Keep the compressor in a horizontal position.  

This Damage to the clutch, electrical terminals and pressure switches will result if assemblies are handled and/or stored improperly.

Do Not 

Lubricate seal washers prior to attaching refrigerant lines to the compressor. 

Seal washer design does not require lubrication to affect a leak free joint.


Replace protective shipping cap on suspect or defective compressors.

Uncapped compressors are subject to leak lubricant, become damaged, or absorb moisture, making subsequent analysis difficult or impossible for the part supplier.


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