PIAGGIO 2005 XEVO 400ie, Workshop Manual

Page: 201 / 376

Pump consumption check
The pump power consumption may vary according
to:
- Power supply voltage
- Pump running-in
- Regulation pressure
- Delivery filter cleaning
To check current consumption, proceed as follows
- disconnect the injection load remote control con-
nector.
- with the key switch turned to « OFF », jump pins
30 and 87.
- check the rotation and power consumption of the pump with the multimeter probes in ammeter function
(see figure).
N.B.
THIS CONSUMPTION REFERS TO:
- POWER SUPPLY VOLTAGE = approx. 12 V
- PUMP RUN IN
- SYSTEM PRESSURE = 300 kPa (3 BAR)
- FUEL FILTER CLEAN
Electric characteristic
Current consumption:
approx. 3.5 - 4.2 A
A dirty filter causes an increase of input. If the pressure-relief valve opens, the pump absorbs approx.
6-7A.
In case of excessive input (5A), replace the filter. See pump support overhaul.
If the fault continues, replace the pump.
Fuel filter check
To check the fuel filter inspect the following:
- Free flow
- Current consumed by the pump. A clogged filter causes:
- Poor performance especially at full power
- Pump input increase
N.B.
DO NOT BLOW THE FILTER WITH COMPRESSED AIR. A DAMAGED FILTER MAY CAUSE THE
INJECTOR CLOGGING.
XEVO 400ie
Injection
INJEC - 201