Air Flow Adjustment; Air Assist System Removal - Universal Laser Systems VLS2.30 User Manual

2. Using the provided 3/16 nut driver, attach the needle valve (1) to the port from which you removed the
plug. Be careful not to cross-thread the small fitting when installing and do not over tighten it (the needle
valve will be left permanently installed on the carriage from this point forward). Attach the air assist back
sweep (2) to the mounting block using the thumbscrew (3) and adjust it up or down (4) as necessary.
Tighten the thumbscrew once it is at the desired height.
3. Adjust the angle of the nozzle as necessary by loosening the thumbscrew (1), rotating the bracket and re-
tightening the thumbscrew. A convenient way to align the air flow is to focus on the material to be
processed and then align the nozzle using the angle and height adjustments toward the red target laser
which is on when the laser system is powered on and the top door is open.

Air Flow adjustment

The needle valve can be used to adjust air flow for different applications. It is best to start with the needle
valve at maximum flow (turn the needle valve counterclockwise until it seats), then adjust as necessary.
Removal
Remove the height adjustment thumbscrew and detach the air assist back sweep from the mount. You
can re-attach the thumbscrew to the mount so as not to lose it. Detach the hose from the needle valve by
using a small wrench or needle nose pliers to loosen the nut that attaches the hose to the needle valve and
unthreading the nut from the needle valve. The needle valve will stay with the carriage.
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