EC119SA less than one yr old just has started showing signs of low air volume. Was using it to clean off work bench, first blast of air was strong then quickly has very little pressure. The pressure gauge...
if there is enough air pressure present in the compressor the motor will stop,the pressure switch is working.if there is a good pressure at start then suddenly lost the pressure,there is no maintaining pressure to use but on the pressure gauge appear to be have a good or enough air pressure.
check if the pressure gauge have enough air pressure the motor is stop,meaning the cut out limit
switch stop the motor,if you loosen the air pressure from the valve until the cut in pressure attain or meet
the motor will run again there will be a cycle process
of differential pressure of cut in and cut out set up on pressure switch.
checking the compressor,be sure there is a high pressure on compressor and the compressor motor is stop,shut off service valve and disconnect unit device / tools from the service valve. if the compressor have enough air pressure crakc down the service valve and observe the pressure until it run again the compressor motor,if the pressure maintain the pressure you need to clean the bench, the problem is the unit device/tool you use is defective, but if the maintaining air pressure in the compressor is lost due to malfuction of motor and the compressor engine. check the pressure switch, check the motor function by loosening the belt and run the motor w/o the compressor engine if it is tripping brought it to service center, check also the lubricant oil,if neccessary change oil.have a nice day and fix my rate thanks a lot.
Apr 20, 2010 |
Hitachi EC119SA Twin-Stack Air Compressor...