User Operated Controls
ON/OFF Switch:
The Power ON/OFF switch is used to turn the pump motor on and off as necessary for operation. The ON/OFF switch
is located on the upper right corner of the SMT-600-W cover. The SMT-1100-W ON/OFF switch is located just under the cover on the
left side of the unit.
Gun:
The spray gun assembly provides operator control of the flow, pressure and pattern of the high-pressure spray. The spray gun
is connected to the output end of the high-pressure hose by quick-connect fittings. Squeezing the gun trigger while directing the
spray nozzle toward the surface or equipment to be cleaned operates the spray gun. Your spray gun may be equipped with a dual
nozzle or a vari-nozzle.
Dual Nozzle:
The dual nozzle selector is used
to select either the low-pressure "soap" nozzle
or the high-pressure "rinse" nozzle. Selection of
the desired nozzle must be made while the spray
gun trigger is released. To select the low-pressure
nozzle, rotate the spray gun 90° counter-clockwise
so that the spray gun handle is parallel to the
ground with the hose connection extending to
the operators right, then squeeze the trigger. To
select the high-pressure nozzle, rotate the spray
gun 90° clockwise so that the spray gun handle
is parallel to the ground with the hose extending
to the operator’s left, then squeeze the spray
gun trigger. Once the nozzle has been selected
and the spray gun trigger held open, the spray
gun may be rotated and aimed in any direction
without affecting pressure nozzle selection.
Vari-Nozzle:
The vari-nozzle is used to select
either low-pressure "soap" or high-pressure
"rinse", and to adjust the spray-pattern from a
wide-angle spray to a zero degree stream. Moving
the black body of the nozzle toward or away from
the gun handle respectively makes selection of
high or low pressure. For high-pressure, pull the
black nozzle-body firmly toward the spray-gun
handle. To select low-pressure, push the black
nozzle-body firmly away from the spray-gun
handle. To vary the spray-pattern of the nozzle,
twist the black nozzle-body for the desired spray-
pattern.
Chemical Metering Selectors (600 series):
This
control allows the operator to select a chemical
to be injected and meter it into the low-pressure
spray. It also provides a means to flush the
chemical injector after each use. The Chemical
Metering Selector is located on the lower left front corner of the SMT-600-W cover. This control is optional on the SMT-1100-W and
is located on the upper right corner of the cover when so equipped. Turning the selector knob from the "OFF" position counter-
clockwise selects and meters the chemical. The farther the control knob is turned, the higher the chemical concentration out the
spray gun. See the chemical dilution chart and instructions on the back page of this manual. To flush the chemical injector, turn the
metering knob fully clockwise and operate the spray gun and pump on low pressure for one minute.
Chemical Metering Knob (SMT-1100-W):
The Chemical Metering Knob is located on the chemical injector and is used to set the
chemical concentration in the spray output. The chemical metering knob has a graduated scale that is used for reference setting
only. Turn the metering knob fully clockwise for NO chemical. Turn the metering knob counter-clockwise to increase the chemical
concentration to the desired strength. See the chemical dilution chart on the back page of this manual.
Operation
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