11-3
NO
DC
OUTPUT
(
1
)
Check the DC circuit breaker.
rn
Examine the DC circuit breaker to make sure it
is
in the
“ON”
position.
*
Sometimes, when a battery with a large capacity is being charged, the charging current exceeds the maxi-
mum
DC
output the generator can produce.
This
causes the circuit breaker to pop
into
the
“OFF”
position.
When this is the problem, advise your customer to use a battery charger and take the power from the AC
receptacle.
(2)
Check the AC output.
rn
Using a circuit tester, check the AC voltage at the AC receptacle.
If no
AC
voltage is being produced, check the generator following the procedure outlined
in
Section
1
1-2.
(3)
Check the DC coil.
rn
Remove the left side cover, right side cover, front panel
and
the recoil starter.
rn
Disconnect the green wire and white wire from the rectifier.
Check the resistance between these wires with a circuit tester.
NORMAL RESISTANCE
GREEN-WHITE
(4)
Check the diode rectifier.
Refering to Section 9-6 on page 29, check the resistance between the terminals of the rectifier with a circuit
tester.
If
the rectifier is defective, replace it with a new one.
11
-4
OUTPUT VOLTAGE
IS
NORMAL AT NO-LOAD,
BUT GENERATOR WON‘T WORK ON-LOAD.
(
1
)
Check the engine
speed.
Start the engine and check the engine speed at no-load.
Adjust the engine speed to 3,100
-
3,150 r.p.m. for
50
Hz
type, and 3,700
-
3,750 r.p.m. for 60
Hz
type.
(2)
Check for over-load.
Check the total wattage of the load(s) applied to the generator.
If the generator is over-loaded, remove or turn off some of the appliances.
(3)
Check the appliances.
Check the appliances for defects. If any are defective, repair or replace them.
-
69
-
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