23HARDI
®
ATV SPRAYER DIAPHRAGM OPERATOR'S MANUAL
4.8 Adjustment Of Air Pressure In Pressure Damper
The air pressure in the damper on the 1203
pump is factory preset at 30 psi (2 bar). This
is suitable for nozzle spray pressures between
45 psi (3 bar) and 225 psi (15 bar). If different
nozzle pressures are required, set pressure
damper at pressures indicated.
4.9 Unfolding/Folding Boom
Unfolding Boom into operating position
1. Remove transport lock pins A (Fig. 12) and swing boom into
operating position. Store transport lock pins in original locations so
they don't get lost.
2. Lift outer boom sections up and over to horizontal position (not
necessary for 20' MB boom). Carefully check that feed hoses do not
interfere with spray pattern.
3. Remove trapeze lock pin B (Fig. 12) to allow for self-levelling boom
feature (40' MB boom only).
Note: The trapeze lock pin may also be used to lock the boom in a
tilted position (40' MB boom only).
PSI (BAR) PSI (BAR)
20-45 (1-3) 0-15 (0-1)
45-255 (3-15) 15-45 (1-3)
Fig. 12
A
B
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