Daewoo ST Series Instruções de Operação descarregar pdf (Página 137)

h) System Trouble shooting

1. System Inoperative

If the engine governing system does not function, the fault may be determined by performing the

voltage tests described in Steps 1, 2, 3, and 4.Be careful of the meter polarities measuring.

Should normal values be indicated as a result of following the trouble shooting steps, the fault

may be with the actuator or the wiring to the actuator See the actuator publication for testing

details.

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STEP TERMINALS NORMAL READING PROBABLE CAUSE OF ABNORMAL READING

1 F(+) & E(-)

Battery supply voltage

1. DC battery power not connected. Check for blown

(12 or 24 VDC) fuse

2. Low battery voltage.

3. Wiring error.

2 C & D 1.0 VAC RMS min., 1. Gap between speed sensor and gear teeth too great.

while cranking Check gap.

2. Improper or defective wiring to the speed sensor.

Resistance between terminals C and D should be

30 to 1,200 ohms.

3. Defective speed sensor.

3 P(+) & G(-) 10 VDC, 1.

Short on terminal P (This will cause a defective unit.)

Internal Supply 2. Defective Speed Control.

4 F(+) & A(-) 1.0 ~ 2.0 VDC 1. SPEED adjustment set too low

while cranking 2. Short/open in actuator wiring.

3. Defective speed control.

4. Defective actuator.

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Daewoo ST Series Instruções de Operação Página 137