Manitowoc Published 10-01-12, Control # 044-05 2-7
777 OPERATOR’S MANUAL SAFETY INFORMATION
2
CRANE ACCESS POINTS
NOTE: If the swing alarm is not operating properly, it must
be repaired as soon as possible. Until it is repaired,
the operator must alert personnel to crane
movement using the horn on the control console.
Take necessary precautions to prevent slipping and /or
falling off the crane or attachment during assembly,
disassembly, maintenance, or other work. Falling from any
height could result in serious injury or death.
Manitowoc has provided, ladders and catwalks at the
locations shown in Figure 2-2.
The owner/user must provide workers with approved ladders
or aerial work platforms to access those areas of the crane
and boom that cannot be reached from the ground or from
the ladders and catwalks provided by Manitowoc.
Adhere to local, state, and federal regulations for handling
personnel and for personnel fall protection.
• Access points must be kept clear to prevent personal
injury and unsafe operation of crane. The operator must
store his/her clothing and other personal belongings so
they do not interfere with controls in operator’s cab or
with operation of crane.
• Do not allow ground personnel to store their personal
belongings (clothing, lunch boxes, water coolers, and
the like) on the crane.
This practice will prevent ground personnel from being
crushed or electrocuted when they attempt to access
personal belongings stored on the crane.
• Tools, oil cans, spare parts, and other necessary
equipment must be stored in tool boxes or other
appropriate locations. Do not allow these items to lie
around loose in operators cab or on ladders and
catwalks.
• To reduce the risk of slipping, non-skid material (sand in
paint) has been applied to painted walkways and
platforms. However, walkways and platforms can be
slippery when wet and when oil or grease is spilled on
them. Keep walkways and platforms clean and dry to
prevent slipping on them. When non-skid material
wears out, reapply it.
• Wear shoes with a highly slip-resistant sole material.
Clean any mud or debris from shoes before entering the
crane cab or climbing onto the crane. A shoe that is not
clean might slip off a control pedal during operation.
• Do not make modifications or additions to the crane’s
access system that have not been evaluated and
approved by Manitowoc.
• Do not use top of boom or jib as walkways, unless they
have optional catwalks.
NOTE: Optional walkways (catwalks) are available for the
boom and luffing jib sections.
Two ladders, stored in the boom butt, are available
for boom assembly and disassembly. See Boom
Ladder Assembly in Section 4 of this manual for
instructions.
GETTING ON OR OFF CRANE
Personnel getting on and off the crane shall do so only at the
ladder provided and only while crane is parked.
Never climb onto or off a moving crane. Climb onto and off
crane only when it is parked and only with operator’s
permission.
When personnel use ladders to get on or off the crane or
attachment, their hands shall be free of any objects. Objects
which cannot be carried in pockets or tool belts shall be lifted
into place with a hand line or hoist.
Always maintain three points of contact when climbing
ladders: two feet and one hand or two hands and one foot.
WARNING
Crushing Injury Hazard!
Rotating bed can swing into and crush personnel climbing
on or off crane.
To prevent death or serious injury:
• Barricade all accessible areas to crane so personnel
cannot be struck or crushed when upperworks is
swung.
• Do not climb on or off crane while upperworks is
being swung.
• Signal operator for permission to climb on or off
crane.
• Operator: do not swing while personnel are climbing
on or off crane. Stop swing motion and apply swing
brake.
• An automatic alarm will sound to alert personnel
when the crane is swung.
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