EXCESSIVE BLACK OR GRAY EXHAUST SMOKE (ENGINE AT NORMAL OPERATING TEMPERATURE). (Cont) -726250171

TM 9-2320-364-34-1

Allow engine to cool before performing troubleshooting maintenance. If necessary use insulated pads

and gloves. Hot engine components will burn and cause injury to personnel.

STE/ICE-R #32

(1) Remove dust cover from DCA

connector MC39.

(2) Connect STE/ICE-R DCA W1 to the

vehicle test meter (VTM) and DCA

connector.

(3) Power up STE/ICE-R VTM in the

DCA mode.

(4) Perform confidence test.

(5) Enter vehicle identification number.

(6) Perform STE/ICE-R #72 test.

(7) Perform STE/ICE-R #73 test.

(8) Perform STE/ICE-R #74 test.

(9) Perform STE/ICE-R #75 test.

(10) Set STE/ICE-R test select switch

to 32.

(11) Press and hold STE/ICE-R test

button until CAL appears on

display.

(12) Release STE/ICE-R test button and

wait for offset value to appear on

display.

(13) Start engine (TM 9-2320-364-10).

(14) Press and release STE/ICE-R test

button to obtain test results.

(a) If reading is greater than those

shown in Table 2-7 (Engine Air

Box Pressures), perform Steps

(15) through (17) and replace

engine (Para 3-4).

(b) If reading is less than those

shown in Table 2-7 (Engine Air

Box Pressures), perform Steps

(15) through (17) below and

replace blower (Para 4-4).

(15) Turn OFF ENGINE switch.

(16) Disconnect DCA cable W1 from

DCA connector MC39.

(17) Install dust cover on DCA connector

MC39.

Table 2-7. Engine Air Box Pressures

Air Box Pressure

1800 rpm

1950 rpm

2100 rpm

Full Load Minimum*

in. Hg (mm Hg)

At zero exhaust back

48 (1216)

52.2 (1322)

54.8 (1388)

pressure

At maximum exhaust

41.9 (1061)

46.1 (1168)

48.7 (1233)

back pressure

* 500 BHP 5234775 DDEC 1.520 timing

2-89