SECTION 7 –
SPRAY SYSTEMS
7-37
NOTE: Before activating the Air Purge
System, ensure no persons are near
the spray boom.
In
Manual Mode
, the operator has control
of the solution valves by manipulating the
Boom Solution Valve Switches (located on
the side console section keypad).
In
Automatic Mode
, the air tank on the
machine is filled based on engine speed and
time to automatically recharge the air tank
and purge the spray system. Automatic Air
Purge settings include: Full Boom Purge,
Individual Section Purge, Air Recharge Time,
and Minimum Engine Speed.
Refer to “Machine Display” provided in the
Cab Section
elsewhere in this manual for
further information on adjusting Air Purge
settings and operating instructions.
Priming - Machine/Boom
(120’ Hybrid Booms)
- If Equipped
The
Machine Prime
feature aids in
removing air out of the large suction/pressure
hoses on the machine. An air bleed valve is
installed as well as a check valve on the main
supply hose to the boom. Priming is
recommended after an air purge event, or if
the solution pump loses prime to ensure the
air is circulated back to the tank or trapped
out past the check valve.
The
Boom Prime
feature allows the
operator to pulse the air out of the boom past
the check valve. This varies based on
solution flow velocity and is dependent on tip
size selected.
NOTE: During a Boom Prime, solution will
be sprayed out of the spray tips.
Total volume expected is less than
25 gallons (94.6 L).
Refer to “Machine Display” provided in the
Cab Section
elsewhere in this manual for
further information.
Wet Boom
The 9-section Wet Boom on your machine
is featured with 1” (2.5 cm) schedule 5
stainless plumbing and delivers solution
directly to the spray nozzles, which allows for
ease of flushing and cleaning of the boom, as
well as decreased contamination/plugging of
nozzles.
The Wet Booms are equipped with
Hypro® Express end caps on the end of the
boom tubing, which aid in eliminating trapped
air from the boom by allowing air to escape
through the nozzle body, reducing nozzle
turn-off time. The end caps are equipped with
a “quick-release” feature to assist in flushing
the Wet Boom tubes.
Refer to “Spray Booms” elsewhere in this
section for further information.
Nozzle Bodies
Nozzle Bodies are located throughout the
boom and consist of a spray tip, gasket, and
cap. The spray tip breaks the solution into
droplets of correct size and forms a uniform
spray pattern.
NOTICE
If your machine is equipped with Modular
Injection, DO NOT run Machine Prime if
the solution system has chemical in it.
Failure to comply will result in carrier
tank contamination.
Wet Boom Plumbing
-Typical View
Hypro Express End Cap
-Typical View
Summary of Contents for STS/DPS Series
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