Smithco Turf Spraying Guide - Manual (Page 15)

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SPD (speed) UP on the left and right screen and also sounding an alarm. It will also flash SLO DN
when the sprayer is being driven too fast. In fact, whenever it detects a variance from the pressure/flow
curve it expects, it will flash CAL SYS (calibrate system) and sound an alarm. This can result from:
 BLOCKAGES in tips or lines
 LEAKS in tips or lines
 EXCESSIVE TIP WEAR
This is extremely valuable information for the spray technician to have displayed, bringing a level of
confidence to spraying that’s revolutionary. Couple this with its weatherproof reliability and it’s an
impressive controller.
To add to that confidence level, the 855 operates as an electronic spray
controller if the computer ever fails. The switches that control the master
on/off, individual boom section solenoids and pressure-compensating valve
are completely independent of the computer. The computer can be turned
off and the sprayer operated normally. All that is required is a pressure gauge mounted somewhere in
the system (which is usually the case on most sprayers. LEDs illuminate to indicate connections with
the flow meter, pressure transducer and speed sensor. LEDs also light when booms sections are
turned on and preset rates are selected. These LEDs blink when target rates are overridden. Again,
computer and printer links are options as well as the GPS capability.
7. Smithco Star Controller
This is a customized version of an expanded Tee-Jet 844 made exclusively for Smithco. It has all the
features and benefits of the regular 844, but includes custom cabling and electric control through a
dedicated junction box All sprayer functions are accessed from a central control location. Boom
lift/lower, pump engagement, lights and any other needs will all be controlled here.
F – ACCESSORIES
any accessories are now available for sprayers in the turf industry. This will be by no means a
complete list, but will address the most popular options selected by our end users. These
options are listed randomly, in no particular order.
1. Hose Reel
Hose reels are often used for handgun spraying or
walking boom (Spray Hawk) use. Other tasks performed
might be with root feeders, tree guns and other
specialized attachments. They are available in either
manual or electric rewind, and usually can carry
approximately 200 feet of ½” or 100 feet of ¾” hose.
Please remember the discussion earlier concerning
pressure loss due to friction through hose.
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