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Page Title:
M1089 MATERIAL HANDLING CRANE (MHC) TELESCOPE OUT LOCKOUT DOES NOT ACTIVATE |
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 TM 9-2320-366-20-2
TM
INITIAL SETUP
Equipment Conditions
Tools and Special Tools
Batteries disconnected (para 7-57).
Tool Kit, Genl Mech (Item 46, Appendix C)
Multimeter, Digital (Item 22, Appendix C)
STE/ICE-R (Item 41, Appendix C)
References
TM 9-4910-571-12&P
START
KNOWN INFO
TEST OPTIONS
1.
Battery voltage OK.
Continuity Test or
Input voltage to overload
STE/ICE-R #91
Is continuity present
REASON FOR QUESTION
shutdown system OK.
from telescope out
Hydraulic system shutdown
Telescope out lockout will
lockout solenoid cable
solenoid OK.
not operate if continuity is
connector socket 1 to
Hydraulic system shutdown
not present at telescope
terminal board position
relay OK.
out lockout solenoid cable
19?
Crane functions OK.
connector socket 1.
Overload lockout cable OK.
Overload shutdown box OK.
NO
Tension load cell OK.
Proximity sensor OK.
POSSIBLE PROBLEMS
Faulty telescope out
YES
Replace telescope out lockout
lockout solenoid cable.
solenoid cable (para 7-122).
Faulty solenoid valve.
KNOWN INFO
TEST OPTIONS
2.
Battery voltage OK.
Continuity Test or
Input voltage to overload
STE/ICE-R #91
Is continuity present from
REASON FOR QUESTION
shutdown system OK.
telescope out lockout solenoid
Hydraulic system shutdown
Telescope out lockout will
cable connector socket 2
solenoid OK.
not operate if continuity is
to ground?
Hydraulic system shutdown
not present from telescope
relay OK.
out lockout solenoid cable
Crane functions OK.
connector socket 2 to
Overload lockout cable OK.
ground.
NO
Overload shutdown box OK.
Tension load cell OK.
Proximity sensor OK.
Continuity to telescope out
Replace telescope out lockout
YES
lockout solenoid OK.
solenoid cable (para 7-122).
POSSIBLE PROBLEMS
Faulty telescope out
lockout solenoid cable.
Faulty solenoid valve.
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