TM-9-2320-387-24-1

TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1

DECEMBER 1997

CHANGE 1

TM-9-2320-387-24-1 - Page 249 of 1205

TM 9-2320-387-24-l

REFERENCE INFORMATION

ENGINE LUBRICATION

Incorrect oil level and type can

cause pressure problems, leaks,

excessive

blowby. and other problems.

Inspect the oil cooler, oil cooler supply return

lines, CDR valve hoses, oil pan, and oil filter. Test

CDR valve (para. 3-9). See the location on parts

page to find these parts.

ENGINE RPM

STMCE-R

TEST 10

1. Start Test 10, Engine RPM.

2. Crank or start the engine.

Displayed

reading is mm. Cranking rpm should be

approximately

200.

Idle rpm should be

700-750.

Remove sending unit (para. 4-29).

ENGINE RPM

INTERLEAVE

WITH O-l,000 PSI PRESSURE

I. Connect BLUE transducer

in place of oil

pressure sending unit. Dial test 50 (O-l ,000 psi

(O-5.995 kPa)). Perform offset test.

2. Dial test 01, interleave with RPM.

Dial test 50.

3. Stan engine and observe display.

VIM

will

display RPM, then PSI.

OIL PRESSURE GAUGE

OIL PRESSURE

SENDING

UNlT

2-193