TM-9-2320-387-10

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

OPERATOR’S MANUAL

OCTOBER 2001

CHANGE 1

TM-9-2320-387-10 - Page 185 of 277

TM 9-2320-387-10

3-2

Section II. TROUBLESHOOTING

3-5. GENERAL

a.

Table 3-1 lists the common malfunctions which you may find during the

operation or maintenance of the vehicles or their components. You should perform

the tests/inspections and corrective actions in the order listed.

b.

This manual cannot list all malfunctions that may occur, nor all tests or

inspections and corrective actions. If a malfunction is not listed or is not corrected

by listed actions, notify your supervisor.

NOTE

• Hydrostatic lock is caused by the entry of substantial amounts of

water into the engine through the air intake system and

subsequent contamination of the fuel system. Hydrostatic lock most

frequently occurs during or just after fording. Water is forced into

the air intake system, is drawn into the engine, and effectively

locks up the engine.

• Notify unit maintenance if you suspect hydrostatic lock and they

will test the engine.

Troubleshooting, table 3-1, contains instructions that will help the operator identify

and correct simple vehicle malfunctions. The table also helps the operator identify

major mechanical difficulties that must be referred to unit maintenance. The listing

of possible malfunctions come under major vehicle headings. They are:

• Engine

• Heating system

• Transmission

• Transfer case

• Brakes

• Wheels and tires

• Steering

• Winch

• Up-armored carrier

3-6. TROUBLESHOOTING PROCEDURES