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Page Title:
M1084/M1086 MATERIAL HANDLING CRANE (MHC) TELESCOPE OUT LOCKOUT DOES NOT ACTIVATE |
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 TM 9-2320-366-20-2
TM
INITIAL SETUP
Tools and Special Tools
Equipment Conditions
Tool Kit, Genl Mech (Item 46, Appendix C)
Batteries disconnected (para 7-57).
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
Is continuity present
Input voltage to overload
STE/ICE-R #91
from telescope out
REASON FOR QUESTION
shutdown system OK.
Telescope out lockout will
lockout solenoid cable
Hydraulic system shutdown
not operate if continuity is
connector socket 1 to
solenoid OK.
not present at telescope
terminal board
Hydraulic system shutdown
out lockout solenoid cable
position 28?
relay OK.
connector socket 1.
Crane functions OK.
Overload lockout cable OK.
NO
Overload shutdown box OK.
Tension load cell OK.
Proximity sensor OK.
POSSIBLE PROBLEMS
Faulty telescope out
Replace telescope out lockout
lockout solenoid cable.
solenoid cable (para 7-102).
YES
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
Telescope out lockout will
Hydraulic system shutdown
cable connector socket 2
not operate if continuity is
solenoid OK.
to ground?
not present from telescope
Hydraulic system shutdown
out lockout solenoid cable
relay OK.
connector socket 2 to
Crane functions OK.
NO
ground.
Overload lockout cable OK.
Overload shutdown box OK.
Tension load cell OK.
Proximity sensor OK.
Replace telescope out lockout
Continuity to telescope out
YES
solenoid cable (para 7-102).
lockout solenoid OK.
POSSIBLE PROBLEMS
Faulty telescope out
lockout solenoid cable.
Faulty solenoid valve.
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