6
OPERATING INSTRUCTIONS
Operating Pump
Do not operate the pump above 540 RPM. When the pump is operating, check the oil level in
the sight glass
IF THE OIL SUDDENLY TURNS WHITE STOP THE PUMP IMMEDIATELY. THIS
INDICATES THAT A DIAPHRAM HAS RUPTURED. IF THE OIL LEVEL RISES TO
THE TOP OF THE SIGHT GLASS DUE TO HIGH OPERATING TEMPERATURE ,
STOP THE PUMP TO PREVENT DAMAGE FROM INTERNAL OVERPRESSURE.
Setting Pulsation Damper and Pump Pressure
THE PUMP PRESSURE SHOULD BE SET WITH ALL DISCHARGE IN BYPASS
LINE ONLY. ALL OTHER DISCHARGE LINES SHOULD BE CLOSED
. This prevents ex-
ceeding the maximum pump pressure rating. For example, if the pressure was set at or near maximum
pump pressure with one or more nozzles turned on , when these nozzle (s) were turned off, the
pressure would rise above the pump’s maximum pressure rating. If the maximum pump pressure is ex-
ceeded, liquid will exit from the safety valve, this is normal. The recommended pressure setting for
most operations is 600 psi. With the pump not running check pulsation damper with pressure gauge.
Inflate to 100 psi if required. (Check on regular intervals before running)
Before setting the pump pressure, make
sure there is liquid in the tank and the inlet
valve is open. Close all discharge valves, place
the pressure release lever in the down position,
and loosen the jam nut on the pressure adjust-
ment knob shaft. Engage the tractor PTO and
increase the engine speed to attain the PTO
working speed, do not exceed a PTO speed of
540 RPM. Set the pressure by observing the
control unit pressure gauge and turning the
pressure adjustment knob clockwise to increase
pressure or counterclockwise to decrease
pressure. After the pump pressure is set, tighten
the adjustment knob shaft jam nut and disen-
gage the tractor PTO.
RE-CIRCULATION
CONTROL
VALVE
SPRAY GUN
CONTROL
VALVE
BOOM
CONTROL
VALVE
STRAINER
PRESSURE
GAUGE
PRESSURE
ADJUSTMENT
KNOB
PRESSURE
RELEASE
LEVER
PRESSURE
CONTROL
UNIT
INLET VALVE
(Open Position)
Must be installed with
arrow from tank toward
inlet side of pump
AIR VALVE STEM
(Test with air gauge &
set at 100 PSI)
