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TEST NO. 2: Water System Pressure and Flow (Fig. 18, 19, 20, 21, 22, 23)
1. The engine must be in good operating condition. Use
a tachometer to verify that the engine is operating at
specified full governed RPM (3450 to 3550 RPM no
load). Engine speed will affect accuracy of flow meter
reading.
2. Stop the engine, engage the parking brake and open
the hood.
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High pressure water system components can
cause personal in ury if disassembled incor-
rectly. Discharge water pressure at bleed
valve before attempting any water system
servicing. Open bleed valve slowly and avoid
contact with high velocity water stream.
WARNING
Figure 18
1. High pressure bleed valve
3. Slowly open the high pressure bleed valve allowing
any pressurized water to escape.
4. Install Water System Pressure Gauge (TOR4005)
into port in water valve housing as shown.
Figure 19
1. Water system pressure gauge (TOR4005)
5. Disconnect wire harness connection for water valve
clutch to prevent the water valve from operating during
the test.
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Figure 20
1. Water valve clutch
HydroJect 3010 Page 6 - 15 Testing