Daewoo POLUS P126TI Operation Manual page 167

(D) System Trouble shooting
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SYSTEM INOPERATIVE
If the engine governing system does not function, the fault may be determined by per-
forming the voltage tests described in Steps 1, 2, 3, and 4. (+) and (-) refer to meter
polarity. 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.
Step Terminals
1 F(+) & E(-)
2 C & D
3 P(+) & G(-)
4 F(+) & A(-)
Normal Reading
Battery supply voltage
(12 or 24 VDC)
1.0 VAC RMS min.,
while cranking
10 VDC,
Internal Supply
1.0~ 2.0 VDC
while cranking
Probable Cause Of Abnorma Reading
1. DC battery power not connected. Check
for blown fuse
2. Low battery voltage.
3. Wiring error.
1. Gap between speed sensor and gear teeth
too great. 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.
1. Short on terminal P (This will cause a
defective unit.)
2. Defective Speed Control.
1. SPEED adjustment set too low
2. Short/open in actuator wiring.
3. Defective speed control.
4. Defective actuator.
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