Manitowoc MLC165-1 Service Maintenance Manual

Reference Only
Manitowoc Published 05-26-17, Control # 238-02 4-1
MLC165-1 SERVICE/MAINTENANCE MANUAL BOOM
4
4
SECTION 4
BOOM
AUTOMATIC BOOM STOP
The automatic boom stop limit switch assembly (1,
Figure 4-1
) automatically stops the boom (2) and applies the
boom hoist brake if the boom is raised to the maximum boom
angle (3).
When the maximum boom angle is
reached, the fault alarm comes on 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.
Automatic Boom Stop Maintenance
At least once weekly, check that the automatic boom stop
stops the boom at the specified maximum boom angle. If it
doesn’t, replace any worn or damaged parts and/or adjust
the automatic boom stop.
The automatic boom stop angle must be readjusted each
time the luffing jib is installed or removed.
Item Description
1 Limit Switch Assembly
2Boom Butt
3 Maximum boom angle:
82.7° without Luffing Jib
88.0° with Luffing Jib
Figure 4-1
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 backwards or collapse,
causing death or serious injury.

Manitowoc MLC165-1 Specifications

General

Brand	Manitowoc
Model	MLC165-1
Category	Construction Equipment
Language	English