Toro Hydroject 3000, Troubleshooting Manual

Page: 78 / 84

Water System Testing TORO Hydroject® 3000/4000 76
Test Equipment
1. Accumulator Test/Recharge tool. TOR4001
2. Water system pressure gauge. TOR4005
3. Water flow meter. TOR4006
4. Valve lift indicator. TOR4007
Troubleshooting Tips
1. Before connecting any test equipment to the
water system, fully relieve water pressure by
opening the water system drain valve.
2. Troubleshooting the system consists of
performing logical tests along the path of the
water.
3. If any test is incorrect, the component must be
repaired before continuing with the test.
4. The most important test equipment is the flow
meter and the water system pressure gauge.
Bleed air form the system and operate the unit
at high idle.
5. Operating a correct unit is very helpful to
understand how it works and what it sounds
like.
6. 4 seconds after startup the cycling valve clutch
is engaged. The minimum operating pressure
should be no less than 3500 PSI and should be
closer to 4000 PSI.
7. If the pressure cycles down to 0 PSI within 10-
15 seconds, pump input flow is low or nozzle
output flow is high.
8. If the gauge swings wildly (from 0-5000 PSI) the
accumulator precharge is very low or empty.