Yamaha EF3000iSE - Inverter Generator - 3000 Maximum AC..., Service Manual

Page: 68 / 327

2-21
INSP
ADJ
DC CIRCUIT BREAKER/
DC CIRCUIT BREAKER (120 V-60 Hz)
DC CIRCUIT BREAKER
1. Check:
• DC circuit breaker
Checking steps:
• Check if the DC circuit breaker knob
1
is
set to “ RESET ” “ ”
a
.
• If the knob
1
is set to “ OFF ” “ ”
b
,
direct current cannot be supplied.
• Start the engine.
• Connect a pocket tester (DC 20 V) to the
DC receptacle and check if direct current
is supplied.
Direct current not supplied
→
Replace or
refer to “ GENERATOR SYSTEM ” in
CHAPTER 4.
Pocket tester:
YU-03112-C, 90890-03112
1
a b
SWL2080T
SWL2090T
DC CIRCUIT BREAKER (120 V-60 Hz)
1. Check:
• DC circuit breaker
Checking steps:
• Set the DC circuit breaker
1
to the posi-
tion of “ ON ”
a
.
• Connect the pocket tester (DC 20 V).
• Start the engine.
• Set the economy switch to “ OFF ” .
• Measure the DC voltage.
• Set the DC circuit breaker
1
to “ OFF ”
b
.
Voltage is zero
→
OK
Pocket tester:
YU-03112-C, 90890-03112
DC voltage:
More than 12 V at 3,550 r/min
(no load at AC output current)
DC
ON OFF
ON
1
a b
SVU2330C
SWL2100T