Maeda CC1908S-1 - Page 318

6.20 TROUBLESHOOTING M A E D A Crawler Crane
6-110 5/2020 CC1908S-1
FLY JIB
Abnormal phenomenon Main causes Corrective action
Monitor display does not switch
to fly jib mode.
Incorrect monitor settings
Change settings (★).
"1 or 2" is shown as the
number of fly jib boom sections
instead of "R” on the monitor
when the fly jib is stowed.
Defective stowage limit switch
Inspect/replace (★)
Defective wiring
Inspect/repair (★)
"R" is shown as the number of
fly jib boom sections instead of
"1 or 2” on the monitor when
the fly jib is extended.
Connector disconnected or not
correctly replaced
Check connector condition.
Defective stowage limit switch
Inspect/replace (★)
Defective wiring
Inspect/repair (★)
BLADE
Abnormal phenomenon Main causes Corrective action
Only the blade cannot be
operated.
(No problem with travelling or
crane operation)
Defective operation switch
Inspect/replace (★)
Defective wiring
Inspect/repair (★)
Defective monitor setting
Change settings (★)
Defective spool
Inspect/replace (★)