Read before doing any Work!! I worked on more electrical than engine powered units. However it sounds like the load valve is not supplying the correct amount of air to the inlet valve.I would remove the air filter at the inlet valve. depending on the type of inlet on the unit it may be air to open or air to close. there should be a line (probably 1/4 plastic) running to the inlet valve. With the unit running if it's air to close and you have the line off the valve will probably open. If the inlet opens be prepared to shut the unit down ASAP before you lift a safety. It May not fully open but enough to make some air.if this happens fell the end of the line removed. you should fell some air coming out of it. If so replace the load valve. It will be the valve the line runs back to. I should have gotten you to check the inlet valve to make sure it moves freely by hand before starting the unit.then do the above. If it's air the open you can test by using an air tank and observing the inlet valve. if it's air to open start tracing back to the point you find air . you will probably find the load valve controlling the air going to the inlet which is again probably bad. Again my expertise is in the electrical side but the above will get you started in the right direction. even though it engine driven the airend is the same as electrical. they just go about the controls differently. please be extra careful while trouble shooting this.
Thanks but it was figured out that the coupling between the engine and the air screw unit has gone bad thus not turning the screw unit to move any air.Thanks but it was figured out that the coupling between the engine and the air screw unit has gone bad thus not turning the screw unit to move any air.
Answers & Comments
Read before doing any Work!! I worked on more electrical than engine powered units. However it sounds like the load valve is not supplying the correct amount of air to the inlet valve.I would remove the air filter at the inlet valve. depending on the type of inlet on the unit it may be air to open or air to close. there should be a line (probably 1/4 plastic) running to the inlet valve. With the unit running if it's air to close and you have the line off the valve will probably open. If the inlet opens be prepared to shut the unit down ASAP before you lift a safety. It May not fully open but enough to make some air.if this happens fell the end of the line removed. you should fell some air coming out of it. If so replace the load valve. It will be the valve the line runs back to. I should have gotten you to check the inlet valve to make sure it moves freely by hand before starting the unit.then do the above. If it's air the open you can test by using an air tank and observing the inlet valve. if it's air to open start tracing back to the point you find air . you will probably find the load valve controlling the air going to the inlet which is again probably bad. Again my expertise is in the electrical side but the above will get you started in the right direction. even though it engine driven the airend is the same as electrical. they just go about the controls differently. please be extra careful while trouble shooting this.
Thanks but it was figured out that the coupling between the engine and the air screw unit has gone bad thus not turning the screw unit to move any air.