TM-9-2320-272-10

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; OPERATOR'S MANUAL

SEPTEMBER 2004

CHANGE 2

TM-9-2320-272-10 - Page 409 of 481

TM 9-2320-272-10

3-60

3-15. ENGINE SPLASH SHIELD REMOVAL

3-16. CTIS DISABLE AND RESET

a. General.

Splash shields are removed

to gain access to the engine.

NOTE

Removal or installation of left

and right engine splash

shields is the same.

b. Removal.

(1)

Raise and secure hood (para. 2-19).

(2)

Lift engine splash shield (1) out of

two brackets (2).

c. Installation.

(1)

Guide engine splash shield (1)

ends into two brackets (2) and push down

splash shield (1) until it touches bottom of

brackets (2).

(2)

Close and secure hood (para. 2-19).

a. General.

Central Tire Inflation

System (CTIS) is a completely automatic sys-

tem with the capability for operator to select

several different modes of operation. When

system malfunction can not be resolved by

switching modes, it may be necessary to dis-

able the Electronic Control Unit (ECU).

b. Disable ECU.

(1)

Ensure engine is not running and

battery switch is turned off (para. 2-16).

(2)

Turn cable connector (3) clockwise

one quarter turn and remove from connector

(4) of ECU (5).

c. Reset ECU.

(1)

Ensure engine is not running and

battery switch is turned off (para. 2-16).

(2)

Connect cable connector (3) to con-

nector (4) of ECU (5) and turn counterclock-

wise one-quarter turn.

(3)

Start engine (para. 2-12) and check

system for proper operation (para. 2-14).