Reference
Only
BOOM
MLC650 SERVICE/MAINTENANCE MANUAL
4-2
Published 09-09-16, Control # 229-09
Automatic Boom Stop Overview
See
for the following procedure.
The boom stop switch unit (1) automatically stops the boom
and applies the boom hoist brake if the boom is raised to the
maximum switch boom angle (2).
NOTE:
The maximum switch boom angle is greater than
the maximum boom angle to allow the operator to
boom up past the maximum capacity chart angle to
get to the minimum chart radius with a load on the
hook and the boom deflected.
When the maximum switch boom angle is
reached, the fault alarm is activated and the
boom maximum up icon appears in the
information screen of the main display.
To correct the fault once it is activated, lower
the boom. The fault cannot be bypassed.
Maintenance
At least once weekly, verify that the automatic boom stop
stops the boom at the specified maximum switch boom
angle. If it does not, replace any worn or damaged parts
and/or adjust the automatic boom stop. See
WARNING
Falling Attachment Hazard!
Do not operate the crane unless the automatic boom stop
is properly adjusted and operational. Do not adjust the
maximum operating angle higher than specified. The
boom could be pulled over backward or collapse, causing
death or serious injury.
Summary of Contents for MLC650
Page 1: ...R e f e r e n c e O n l y Service Maintenance Manual Manitowoc MLC650 ...
Page 2: ...R e f e r e n c e O n l y ...
Page 4: ...R e f e r e n c e O n l y THE ORIGINAL LANGUAGE OF THIS PUBLICATION IS ENGLISH ...
Page 375: ...R e f e r e n c e O n l y ...
Page 376: ...R e f e r e n c e O n l y ...