SECTlON V: TROUBLESHOOTING
TM 9-2350-256-20
WARNING
Remove all jewelry such as rings, dog tags ,
bracelets, etc. If jewelry contacts a metal
surface a direct short may result in instant
heating of tools, damage to equipment, and
injury or death to personnel.
A Disconnect wire 664A from hydraulic oil
temperature gage. Place red lead of multimeter in
wire 664A and black lead to ground. Turn MASTER
switch on and check for voltage. Turn MASTER
switch OFF. If voltage is present, go to step D. If
voltage is not present, go to step B.
B Reconnect wire 664A to hydraulic oil temperature
gage. Disconnect wire 325 from hydraulic oil
temperature gage side of 15 A circuit breaker. Place
red lead of multimeter on terminal of 15 A circuit
breaker and black lead to ground. Turn MASTER
switch on and check for voltage. Turn MASTER
switch OFF. If voltage is present, repair/replace
wire 664A of red flasher breaker to switch wiring
harness (see paragraph 6-66). If voltage is not
present, go to step C.
C Reconnect wire 325 to hydraulic oil temperature
gage side of 15 A circuit breaker. Disconnect wire
325 of switch panel, radio, and bilge pump to
bulkhead wiring harness from 15 A circuit breaker.
Place red lead of multimeter in wire 325 and black
lead to ground. Turn MASTER switch on and check
for voltage. Turn MASTER switch OFF. If voltage
is present, replace 15 A circuit breaker (see
paragraph 6-11). If voltage is not present, go to
step G.
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