OPERATORS HANDBOOK 6
OPERATING INSTRUCTIONS
START UP PROCEDURE
BEFORE USE
1. Check all hoses, connections and hose clamps to ensure that the unit has been delivered to you without
transportation loss or damage.
2. Before attempting any spraying with your new unit, operate it with water only to familiarize yourself with
its features and capabilities and to ensure that your sprayer has arrived in a safe working condition. Please
contact your dealer immediately should anything appear to have been damaged.
3. Load the Field Spray unit onto the back of a vehicle and fasten the unit securely to the vehicle by
strapping or bolting it down. Ensure that the straps do not interfere with any hoses or connections. Do not
place the straps over the pump or engine. Keep hoses and straps away from hot engine, exhaust and
exhaust fumes.
4. Prepare the engine for use as per the engine manual supplies with your sprayer. Ensure that the correct
quantity and type of oil is used when filling the engine.
5. Before spraying, check that the filter screen is clear and free from foreign particles and chemical
residues. This can be done when the tank is full or empty. Unscrew the black filter retaining ring and
remove filter and clean as necessary. A clean filter will maintain pump performance and extend pump life.
Prepare the engine for start up as per the engine manual and pump manual.
Add the spray solution to the tank (See “Mixing and Filling”).
Ensure that the pressure regulator lever is in the ‘BY PASS’ position and the pressure adjusting knob is
screwed out (anti-clockwise). Failure to do so will invalidate pump warranty.
Start the engine and allow it to warm up. Run the pump with the regulator lever in the BY PASS position in
order to discharge entrapped air from the system for at least two minutes before changing the regulator to
the PRESSURE position.
To set the correct spraying pressure, open the flow through the hand gun (discharge solution back to tank)
and turn the pressure regulator knob in a clockwise direction until the required pressure is achieved. Spray
nozzle pressure will vary according to hose length, nozzle size, etc. When the hand gun is released the
increased pressure in the system will be automatically adjusted by the pressure regulator valve and excess
flow will be returned to the spray tank.
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