TM 9-6115-729-24
0013
ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING - Continued
CORRECTIVE ACTION - Continued
STEP 4.
Install a new injection actuator pressure control valve (IAPCV) and retest the
system.
a. Install a new IAPCV (WP 0102) and perform the Injection Actuation Pressure
Test at low idle and at operating RPM per STEP 3. Record the results in
Table 5.
OPERATING RPM
DESIRED INJECTION
ACTUAL INJECTION
PERCENTAGE
PRESSURE
PRESSURE (CAT ET)
OUTPUT (CAT ET)
1
870
2
1450
3
2031
4
2611
LOW IDLE
DESIRED INJECTION
ACTUAL INJECTION
PERCENTAGE
PRESSURE
PRESSURE (CAT ET)
OUTPUT (CAT ET)
1
870
2
1450
3
2031
4
2611
b. If the injection actuation pressure output is between 65 percent and 100
percent of the DESIRED INJECTION PRESSURE, the injection actuation
pressure output is within specifications.
c.
If the replacement of the IAPCV corrected the problem run the engine under
normal operating conditions in order to verify that the original problem has
been resolved.
d. If the injection actuation pressure output is not within specifications. Reinstall
the original IAPCV (WP 0102).
e. If the problem is not resolved, check for other alarm and fault codes.
Troubleshoot the fault codes as applicable.
