CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
TM 9-2350-256-20
2-19 ELECTRICAL TROUBLESHOOTING--Continued
ENGINE OIL PRESSURE GAGE--Continued .
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
Remove three screws (1), three lockwashers (2), two
screws (3), two lockwashers (4), and ground strap (5)
and release gage panel (6) from mounting brackets.
Remove gage panel to bulkhead wiring harness from
gage panel. Place red lead of multimeter in socket K
of wire 27 and black lead to ground. Turn MASTER
switch on and check for voltage. Turn MASTER switch
OFF. If voltage is present, go to step B. If voltage is
not present, troubleshoot power control lever circuit.
B
Reconnect gage panel to bulkhead wiring harness to
gage panel. Disconnect wire 27A from engine oil
pressure gage. Place red lead of multimeter in wire
27A and black lead to ground. Turn MASTER switch
on and check for voltage. Turn MASTER switch OFF.
If voltage is present, go to step C. If voltage is not
present, repair/replace wire 27A of gage panel wiring
harness (see paragraph 6-44).
2-106
