Toro Hydroject 3000 - Water Pressure Test; Interpreting Test Results and Operational Effects

TORO Hydroject® 3000/4000 Water System Testing
NOTES
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67
Water Pressure Test
Install the water system pressure gauge (TOR4005) into the port in the water valve housing.
NOTE: Operating the machine for an extended period of time with the gauge installed can damage the gauge.
Interpreting Test Results and Operational Effects
High water pressure. (exceeds 5000 PSI).
Cause:
Relief valve sticking or misadjusted.
Effect:
Engine kills (high horsepower requirements).
Pump damage.
Shortened drive belt life.
Low Water Pressure.
Cause:
Leaking relief valve.
Leaking cycling valve.
Worn pump seals.
Low water supply.
Air in the system.
Effect:
Shallow hole depth.