Clarke PRO-MIST DURA, Инструкция и список запасных частей, Страница: 26 / 133

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PRO-MIST DURA® ULV
The Spray Head
The Pro-Mist Dura’s spray head uses a porous sleeve
assembly, driven at 23-30,000 RPM, to produce
droplets from insecticide that has been introduced to
the inside of the assembly. The high speed of rotation
and the porosity of the sleeve are important for proper
mist production. Actual droplet sizes produced also
depend upon the characteristics of the insecticide, the
flow rate, temperature, viscosity and weather conditions.
The spray head will produce spray droplets which meet
label specifications for all currently available product
formulations commonly used for mosquito and fly
control dispensed at typical flow rates.
The spray head uses a 24 volt brushless electric motor.
The spray head Hub and Sleeve assembly is mounted
directly on the one piece motor shaft which rides on
high-speed, precision ball bearings.
A properly used spray head with a porous sleeve
assembly is capable of handling liquid flow of up to
approximately 18 oz./min. (532.26 ml./min.), depending
upon the flow and atomization characteristics of the
liquid being sprayed.
The Clarke porous sleeve acts much like a filter.
Therefore it should be used only with liquids that
contain no suspended solids, regardless of how small
the particles are. Solid particles which are suspended
in the spray material will be filtered out by the sleeve
and will eventually clog it. Don’t use chemicals which
have been in storage for long periods, particularly in
partially filled containers, because they may contain
solid impurities such as precipitates or breakdown
products. If you must spray these materials, filter
them first through a “cone shaped” paint filter,
doubled up (one inside the other), available through
local automotive suppliers. Even with filtering, the
spraying of such materials will greatly shorten the
working life of the disposable porous sleeve.
A high quality in-line insecticide strainer filter
is provided on the Pro-Mist Dura and is required
to ensure maximum sleeve life. Do not substitute
paper filters for the Clarke filter. The substitute
may disintegrate and clog the system.
SPRAYER MAINTENANCE
Audible Detection for Identifying
Spray Head Imbalance
The Spray Head or rotary atomizing device utilized by
the ProMist is a high-speed precision device that spins
at very high speeds or RPMs (rotations per minute).
It is manufactured to high tolerance specifications to
ensure the components are perfectly dimensioned and
balanced.
The balance is very important to maintain.
A
deformed or clogged sleeve can develop an imbalance.
This imbalance typically happens slowly and the sound
of the spinning hub is affected by this change. If the
sound changes at any time, whether suddenly or slowly
over time, stop the spray head and inspect the sleeve
and hub for damage or deformation.
When running properly the spray head should be
emitting a smooth consistent frequency with some
subtle rpm changes as the machine adjusts to maintain
the target speed. An imbalanced spinning hub
would have a persistent wobbling type of sound. It is
important to eliminate an imbalance quickly to maintain
the quality and prolong the life span of the spray
head’s internal components. ProMist operators should
be advised of these audible conditions and familiarize
themselves with the way the machine sounds when
equipped with a clean well-balanced sleeve running at
the set target speed.