Controlling the Function Using Sight Glass
For a better understanding of the behavior of the AutoTrim valve, a sight glass is recommended. Find a sight glass suitable for the tool on ServAid.
Assemble the sight glass with the tube adapter between the AutoTrim valve and the tool.
Check that the valve remains in closed position when running in the air.
Run the tool on a joint and notice the change from closed to open position when the pulsing starts.
If the behavior in “2” or “3” above is not correct, the valve is in need of adjustment or service, see Adjusting the Switch Point.
