Complaint: Shallow Hole Depth - Toro Hydroject 3000 Troubleshooting Manual

TORO Hydroject® 3000/4000

Complaint: Shallow Hole Depth

1. Test high pressure water.
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Low water pressure can be an indication of a faulty relief valve or water pump.
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To check the high pressure water circuit, disconnect the wire to the cycling valve and remove the
return hose from the relief valve.
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With the pressure gauge connected to the water system, engage the water system and check the
pressure. Should be 5000 psi.
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If the pressure is low, repair or replace the relief valve.
2. Test water flow.
•
Low water flow can be an indication of a water supply problem or a pump problem. If there is a water
supply problem the yellow light on the control module will be off. If the light is on there is adequate
water supply and the problem could be with the pump.
•
Repair or replace the pump as necessary.
.
3. Test accumulator pressure.
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The accumulator stores high pressure water until the cycling valve opens.
•
Accumulator pressure effects the water available for delivery.
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Low pressure caused by nitrogen leaking from the accumulator.
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High pressure caused by water leaking past the O-Rings. (trapped on top of the pistons).
4. Check nozzle hole size.
•
Worn aeration nozzles will increase water flow and decrease the aeration pressure.
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NOTES
Water System Testing 61