Dc Circuit Breaker; Dc Circuit Breaker (120 V-60 Hz) - Yamaha EF3000iSE Service Manual

1
DC
ON
a

DC CIRCUIT BREAKER/

DC CIRCUIT BREAKER (120 V-60 Hz)

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