Hardi SMARTCOM ISOBUS UT SW A.2.2 Series User Manual

7 - Fault Finding
127
Fluid System Test of Pump Capacity and Internal Leakage
1. Close the main ON/OFF valve.
2. Close the regulation valve by pressing button to increase the pressure. Yellow diode lights on the regulation valve.
3. Close the agitation valve.
4. Close the pressure filter bypass valve.
5. Set the pump from 250 to 300 RPM, while engine is in idle speed.
6. Now all water from the pump should pass the boom flow sensor.
7. Pump condition and possible internal valve leakages can be checked by comparing:
• Menu 4.3.5.2.3 Pump calc flow. This menu shows the calculated flow from the pump.
• Menu 4.3.5.2.6 Boom flow sensor. This menu shows the actual measured flow through the flow sensor.
This indicate a leakage from the operating unit and back to tank when nozzles are spraying.
The leakage could be caused by a defect bypass valve.
μ
ATTENTION! When there is a leak from the operating unit back to the MainTank, it takes longer time to fill the
measurement can and the PPU thereby increases. This increase is largest at small nozzles.

Hardi SMARTCOM ISOBUS UT SW A.2.2 Series Specifications

General

Brand	Hardi
Model	SMARTCOM ISOBUS UT SW A.2.2 Series
Category	Farm Equipment
Language	English