Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Should I buy a new compressor?
View Single Post
  #8 (permalink)  
Old 09-08-2012, 03:24 PM
oldred oldred is offline
Last photo:
Join Date: Jan 2003
Location: tennessee
Posts: 5,927
Wiki Edits: 0

Thanks: 0
Thanked 11 Times in 11 Posts
Originally Posted by Old Fool View Post
Aren't the old Wayne air compressors a mechanical unloader type and do not require high starting currernt

Almost all air compressors (except for the really small "tire pumper" units) have an unloader system otherwise the load would be too high even with a capacitor start, some are mechanical and some are a simple bleed-off system connected to the switch but they all serve the same purpose. An unloaded compressor is still a huge load at start-up due to the mass and inertia encountered when the motor suddenly kicks on and attempts to start all that stationary weight spinning. A simple unassisted motor type phase converter could work for something like a table or band saw or other very light start load if it's sized properly but those capacitor banks are needed for most applications.
Reply With Quote