ENGINE OIL PRESSURE GAGE SHOWS incorrect PRESSURE DURING Operation

TM9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

7. ENGINE OIL PRESSURE GAGE SHOWS incorrect PRESSURE DURING Operation (MORE THAN

70 PSI (482 KPA) OR LESS THAN 50 PSI (345 KPA).

NOTE

If oil pressure gage shows zero pressure during operation, go to step 3.

Perform steps under ENGINE USES TOO MUCH OIL (page 3-27).

Step 1.

Step 2.

Start engine (TM 9-2320-270-10). Using multimeter set at 30 vdc, put red probe

on oil pressure sender terminal (1) and black probe on nut (2).

a. If meter reads 6 to 8 volts, shut down engine (TM 9-2320-270-10),

replace oil pressure gage (page 4-259), install side panels

and hood (TM 9-2320-270-1 O).

b. If meter does not read 6 to 8 volts, shut down engine (TM 9-2320-

270-10), replace oil pressure sender (page 4-393), and repeat

step 2. If meter still does not read 6 to 8 volts, install side panels

and hood (TM 9-2320-270-10) and notify direct support

maintenance.

3-28