Hitachi Air Suspension Compressor Replacement Collets

The likely cause of the faults noted above and most common cause is a worn piston and glide ring within the air suspensions compressor unit. Coupled with saturation of the filters in the compressors drier unit. This results in reduction of compressor output and triggers vehicle faults as well as extending the time taken to lift the vehicle. The original design for the dryer end cap was poor and cracks can develop around the air line collets causing leaks and vehicle faults.

However, whilst refurbishing the compressor great care must be taken when removing the air lines as the collets are fragile and can often break.