Manitowoc 16000 User Manual

Reference Only
Manitowoc Published 05-03-17, Control # 228-03 4-1
16000 SERVICE/MAINTENANCE MANUAL BOOM
4
SECTION 4
BOOM
AUTOMATIC BOOM STOP
Maximum Boom Angle
The boom stop limit switch (5, Figure 4-2) stops the boom
and applies the boom hoist brake when the boom is raised to
angle A shown in Figure 4-1
and listed in Table 4-1.
Operation
See Figure 4-2 for the following procedure.
When the boom is below the maximum angle, the limit switch
(5) is closed. The boom hoist can be operated.
When the boom is raised to the maximum angle, the boom
butt (1) pushes the adjusting rod (2a or 2b) in and the
actuator rod (11, View A) opens the limit switch (5). The
boom hoist operation stops because the open limit switch
turns off power to the boom hoist electrical circuit. The boom
hoist pump shifts to neutral and the brake applies to stop
boom movement.
Maintenance
At least once per week, make sure the boom stop stops the
boom at the specified maximum angle. If not, replace any
worn or damaged parts and/or adjust the boom stop.
Once the boom stop is properly adjusted, it should not
require periodic adjustment. Adjustment is required,
however, when the following occur:
• The luffing jib is installed or removed
• Parts are replaced
WARNING
Falling Attachment Hazard!
If the boom fails to stop for any reason, stop the engine
immediately. Troubleshoot the system to determine the
problem.
Do not resume operation until the problem has been
corrected.
WARNING
Falling Attachment Hazard!
Do not operate the crane unless the 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.
Table 4-1 — Boom Stop Angles
Angle A (see Figure 4-1
)
84° — #58 Boom without Luffing Jib
88° — #58 Boom with #59 Luffing Jib

Manitowoc 16000 Specifications

General

Brand	Manitowoc
Model	16000
Category	Construction Equipment
Language	English