The desired pressure cannot be achieved
Service201 - the desired pressure cannot be achieved
Symptoms:
The Master does not work properly, the liquid is not spattered the way it used to be (occurs after long periods of not using the sprayer and not smearing it).
The stream of liquid coming out of the nozzle` s tip (3) is not proper or it stops coming out after a while.
Reasons:
Probably the holes in core - nozzle trunk (5) are jammed.
There are two such holes which can be seen after unscrewing the regulated nozzle (3).
Other possible reason: The regulated nozzle (3) can be jammed as well.
Solution:
Clean both holes with a thin wire. You can eventually use an ordinary paper clip.
Concern series:
Master 1500, 2000
The explosion drawing of Master can be found here:(25KB;doc) 
