TM 5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-32
INDICATOR
- GAGE
ENGINE
OIL PRESSURE
GAGE
WILL
NOT SHOW
PRESSURE
(POWERPLANT
WARNING
LAMP
NOT ON ENGINE
RUNNING
ALL
OTHER
GAGES
~
NOTE
This procedure
is to be performed
by
two
persons.
The
lead
person
is
referred
to as the first technician
and
shall direct the activity
of the second
person called the second technician.
n
#Check
gage instrument
panel harness (CKT 27) for
electrical
power
at ENGINE PRESS indicator
gage.
First
l
l
l
l
l
l
l
Technician
(Operators
Station)
Set MASTER
BATTERY
switch OFF.
Displace gage instrument
panel (page 10-111).
Set multimeter to measure 18 to 30 volts dc, or use STE/
ICE Test No. 89 (page 4-81).
Disconnect
gage instrument
panel harness connector
(CKT 27) from ENGINE
PRESS indicator
gage.
Connect red probe of meter to gage instrument
panel
harness connector
(CKT 27) at ENGINE
PRESS
indicator gage and black probe to ground.
Set MASTER
BATTERY
switch ON.
Check if meter indicates
18 to 30 volts dc.
Does meter indicate
18 to 30 volts dc?
~+
0
TO
VEHICLE
GROUND
IT
CKT 27
GAGE
INSTRUMENT
PANEL
(REAR
VIEW)
(page 298).
I
m
CKT
r------
1
ENGINE
I
GAGE
o
PRESS
-+
INSTRUMENT:
INDICATOR
27-+
1+]
.- +
PANEL
GAGE
,
CONNECTOR:
CONTACT
~-----d
TA1071O1
4-412
