2.17
SECTION 2 - SPRAYER OPERATION
A. For CLOSED CENTER LOAD SENSING tractors
adjust pump as follows:
1. Loosen jam nut for bypass screw located on top
of hydraulic motor and turn screw completely in.
2. Secure jam nut.
3. Adjust ow control valve for tractor hydraulic
system to allow minimum oil ow.
SINGLE TANK DUAL TANK
NOTE!
WHEN HIGH SPRAY PRESSURES ARE DESIRED, OPERATOR MUST ADJUST AGITATORS
TO INCREASE SPRAY PRESSURE. WITH ALL SPRAYER FUNCTIONS SHUT OFF AND
PUMP RUNNING AT FULL CAPACITY PRESSURE MUST NEVER EXCEED 125 PSI.
3. ADJUST HYDRAULICALLY DRIVEN PUMP SYSTEM
The hydraulically driven pump system must be adjusted to limit maximum shut off pressure of 125 psi
in order to stay within the 0 to 125 psi operating range of the plumbing system. Tractor hydraulic output
will affect pump performance. For more complete information see the Hypro pump selection guide
included in the publication.
4. Close manual valve D or Q (agitator control) plus make sure switches for all boom Electric
Ball Valves are off. LEAVE VALVES A AND N (TANK SUCTION) OPEN!
5. Engage tractor hydraulic system and increase to normal eld rpm speed.
6. Adjust ow control valve for tractor hydraulic system until pressure gauge reads 30-50 psi
over the expected spray pressure. DO NOT EXCEED 125 PSI.
7. Disengage tractor hydraulic system by moving lever to oat position. This will allow pump to
coast to a stop.
8. Set up Normal Spraying.
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