Malaguti SPIDER MAX GT 500 Manual Diagnóstico página 198

SPIDER MAX 500
12.7 Fuel pump electrical checks
12.7.1 Resistive check
Disconnect the connector from the pump support. Use a
multimeter to measure the pump winding resistance.
Connect the multimeter prods to the PINS (1 - 4) of the
pump support as indicated in the picture.
≥ ≥ ≥ ≥ ≥
1,5 Ω Ω Ω Ω Ω
Resistance =
In case that an infinitive resistance is measured, repla-
ce the pump.
The pump does not rotate with an infinitive resistance.
With a resistance value approaching 0 Ω Ω Ω Ω Ω , the pump
uses too much power, and this may lead to the bur-
ning of the 10 A fuse no. 6. Perform the check indica-
ted below.
12.8 Pump electrical power consumption.
The pump electrical power consumption may vary accor-
ding to the:
- supply voltage;
- pump running-in;
- adjustment pressure;
- delivery filter cleaning.
In order to check the consumed power proceed as fol-
lows:
- disconnect the connector of the red relay, controlling the
pump;
- with the key switch on the "OFF" position, create a
jumper across 30-87 on the connector, by means of the
multimeter prods on the amperometer function (see
picture).
- check the pump rotation and power consumption.
Consumed power = ~ 2,5 ÷ 4,2 A
NOTE - The indicated power consumption refers to:
- supply voltage = > 12 V
- runned-in pump
- system pressure= 300 KPa (3 bar)
- cleaned fuel filter.
A dirty filter cause an increase in the power consumption. In case of overpressure, the pump consumes ~ 6 ÷ 7 A.
In case of excessive power consumption (> 5 A) is detected, replace the filter. Refer to the pump support revision.
In case the anomaly persists, replace the pump.
12.9 Fuel filter check
In order to check the fuel filter, check the:
- Free flow
- pump power consumption;
A clogged filter may lead to:
- a decrease in the motorcycle performances especially at full power
- an increase in the pump consumption.
NOTE - Do not bleed the filter with compressed air. A damaged filter may cause the injector to clog.
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