TM 1-1520-238-T-4
6–51
6–12.
DRIVE SYSTEM – INDICATORS MAINTENANCE OPERATIONAL CHECK (cont)
6–12
LOW RPM
ROTOR
INDICATOR
HIGH RPM
ROTOR
INDICATOR
PRESS TO TEST
INDICATOR
M58–289
Figure 6–19.
Master Caution/Warning Panel
Task
Result
b. On pilot master caution/warning panel
(fig. 6–19), press and hold PRESS TO TEST
indicator. Check pilot master
caution/warning panel and pilot
caution/warning panel (fig. 6–17).
If any indicators are not lighted, replace lamp
(TM 1-1520-238-23). If lamp still does not light, refer
to TM 1-1520-238-T-6 to troubleshoot pilot
caution/warning system.
c. On CPG master caution/warning panel,
press and hold PRESS TO TEST indicator.
Check CPG master caution/warning panel
and CPG caution/warning panel (fig. 6–18).
If any indicators are not lighted, replace lamp
(TM 1-1520-238-23). If lamp still does not light, refer
to TM 1-1520-238-T-6 to troubleshoot CPG
caution/warning system.
d. On pilot caution/warning panel (fig. 6–17),
check PRI HYD PSI indicator.
If PRI HYD PSI indicator is not lighted, refer to
TM 1-1520-238-T-5 to troubleshoot primary hydraulic
system.
e. On CPG caution/warning panel, check PRI
HYD indicator.
If PRI HYD indicator is not lighted, refer to
TM 1-1520-238-T-5 to troubleshoot primary hydraulic
system.
f. On pilot caution/warning panel, check UTIL
HYD PSI indicator.
If UTIL HYD PSI indicator is not lighted, refer to
TM 1-1520-238-T-5 to troubleshoot utility hydraulic
system.
g. On CPG caution/warning panel, check UTIL
HYD indicator.
If UTIL HYD indicator is not lighted, refer to
TM 1-1520-238-T-5 to troubleshoot utility hydraulic
system.
h. On pilot caution/warning panel, check
SHAFT DRIVEN COMP indicator.
If OIL PSI ACC PUMP indicator is not lighted, go to
paragraph 6–23.
i. On pilot caution/warning panel, check OIL
PSI ACC PUMP indicator.
If SHAFT DRIVEN COMP indicator is not lighted,
refer to TM 1-1520-238-T-5 to troubleshoot pneumatic
system.
j. On pilot caution/warning panel, check GEN
1 indicator.
If GEN 1 indicator is not lighted, refer to
TM 1-1520-238-T-6 to troubleshoot pilot
caution/warning system.
