Suction Device

Extraction device
The extraction device is used in conjunction with nozzle testers when testing injection nozzles. This device extracts the oil mist, which develops when testing injection nozzles.

Operating Principle
Extraction of the atomized fuel is carried out by means of a vacuum. This vacuum is generated via compressed air by a jet pump which causes the oil mist to condense in a filter. To make it easier to observe the injection procedure (e.g. in hole-type nozzles), a ring lamp is installed.

Working with the device
The level of extraction is adjusted by means of the regulating valve. At a high level of extraction, there is a loud noise. Therefore we recommend that the compressed air be opened only so far so that the oil mist is properly extracted. To regulate extraction, the button of the regulating valve must be unlatched upwards; when the regulating valve is depressed, it is locked. The lighting can be switched on via the switch (rear side of device). To make it easier to observe the jet, the device may be tilted forwards.

Maintenance
The device operates almost maintenance-free. If the oil level becomes visible at the oil-level indicator (front side), drain of f the oil at the drain plug. If oil escapes from the air outlet, the system of the jet pump must be cleaned (remove oil). Likewise, check the filters and, if necessary, clean or replace.