Table 2. STE/ICE-R Go Chain Test - continued

TM 9-2320-361-24-1

0017 00

SIMPLIFIED TEST EQUIPMENT FOR INTERNAL COMBUSTION ENGINE--REPROGRAMMABLE

(STE/ICE-R) GO CHAIN TROUBLESHOOTING (Contd)

Table 2. STE/ICE-R Go Chain Test (Contd).

NOTE

Test GO1, VTM Connections and Checkout must be

performed before running any other STE/ICE-R test.

COMPRESSION UNBALANCE TEST

G09

MODE

CAUTION

Do not perform more than two compression

unbalance tests in a row, or vehicle

batteries may be discharged. If possible,

TEST NO.

TEST

engine should be at operating temperature

COMPRESSION

when performing compression unbalance

UNBALANCE

test.

NOTE

The compression unbalance test takes

approximately 15 seconds to run.

RUN COMPRESSION UNBALANCE TEST:

Install pulse tachometer (TK item 34) with transducer

cable W4 (see GO 3).

Shut off fuel supply so that engine will not start.

Dial 14 into TEST SELECT switches and press TEST.

Wait for prompting message GO to appear.

When GO appears, crank engine.

Just after cranking, VTM display should change to

four dashes indicating VTM is accepting data.

PROMPTING

Stop cranking when VTM displays OFF or E013

MESSAGE

Wait for a number to be displayed.

Does VTM display a number?

YES

Does VTM display GO?

Rerun compression unbalance test.

YES

If unbalance test is still out of

limits, refer to Mechanical System

Troubleshooting Index (WP 0007 00)

Does VTM display fail?

to diagnose engine.

YES

VTM displays E013. This may

indicate discharged batteries or low

Proceed to next page.

cranking speed. Also, the operator

may have stopped cranking during

test. Correct problem and repeat test.

0017 00-21