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
Service202 - quick pressure loss Symptoms: Despite pumping
the pressure after some time is
not high enough to spray properly
and the motion of the piston while
pumping seem to be resistless. Reasons: Probably the
pump valve (8) or piston o-ring 11
x 4 mm (2) is broken. Solution: Examine the pump
valve (8). It should adhere
tightly to the to the surface of
pump cylinder (7). If it does not
the pump valve should be replaced.
The 11 x 4 o-ring (2) should be
examined too. In order to do so,
turn the pump cylinder (7)
counterclockwise and pull out the
pump piston (1) from the cylinder.
If any damages are found the
o-ring should be replaced.
While mounting the sprayer back
together you musn` t forget about
smearing the o-ring 11 x 4 (2) and
the inside part of pump cylinder
(7) with silicone smear. Concern series:
Master 1500, 2000
