GAC EEG6500 Manuale - Pagina 7
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SYMPTOM
1. Do Not Crank. Apply DC power to the governor
2. Manually hold the engine at the desired running
Engine Over Speeds
3. Check #TEETH parameter.
Over Speed shuts down
1. Examine the SPEED and OVER SPEED oper-
engine after running
speed is reached
Over Speed shuts down
1. Check resistance between Terminals C&D.
engine before running
speed is reached
SYMPTOM
1. Measure the voltage at the
Actuator does not
energize fully
2. Momentarily connect Terminals A and F. The
Engine remains below
1. Measure the actuator output, Terminals A & B,
desired governed speed
UNSATISFACTORY PERFORMANCE
NORMAL READING
system.
speed. Measure the DC voltage between Termi-
nals A(-) & F(+) on the speed control unit.
ating parameters for the engine
Should be 130 to 1200 ohms. See specific
Magnetic Pick-up data for resistance.
UNSATISFACTORY PERFORMANCE
NORMAL READING
battery while cranking.
actuator should move to the full fuel position.
while running under governor control.
PROBABLE CAUSE OF ABNORMAL READING
1.
If the actuator is at minimum fuel position and there exists an erroneous
speed signal, then check speed sensor.
1.
If the voltage reading is
1.0 to 2.0V DC:
a. SPEED parameter set above desired speed
b. Defective speed control unit
2.
If voltage reading is > 2.0V DC then check for:
a. actuator binding
b. linkage binding
3.
If the voltage reading is below 1.0V DC:
a. Defective speed control unit
1.
Incorrect tooth count entered.
1.
SPEED parameter set too high.
2.
OVER SPEED set too close to SPEED.
3.
Check SPEED RAMP parameter.
4.
Actuator or linkage binding.
5.
Speed Control unit defective.
6.
Gain too low.
1.
OVER SPEED set too low
2.
If the speed sensor signal is erroneous, then check the wiring.
PROBABLE CAUSE OF ABNORMAL READING
1.
If the voltage is less than:
a. 7V for a 12V system, or
b. 14V for a 24V system,
Then: 1. Check wiring
2. Check circuit protection/relay
3. Check charging system
4. Check battery
1.
Actuator or battery wiring in error
2.
Actuator or linkage binding
3.
Defective actuator
4.
Fuse open. Check for short in
actuator or harness.
5.
Check START FUEL and CRANK
1.
If voltage measurement is within 2V DC of the battery supply voltage
level, then fuel control is restricted from reaching full fuel position, pos-
sibly due to mechanical governor, carburetor spring, or linkage inter-
ference.
2.
Check SPEED, IDLE, GAIN, START FUEL, and CRANK
720 Silver Street,
Agawam, MA 01001 USA
www.governors-america.com
EEG6500 Enhanced Electronic Governor 05.09.18
7
PIB 5010 F
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