Manitowoc Published 08-06-19, Control # 237-09 2-9
MLC165-1 OPERATOR MANUAL SAFETY INFORMATION
4. The operator shall be thoroughly familiar with operation
of the crane and its proper care. If adjustments or repairs
are necessary or if there are known defects that impair
safe operation, the crane shall not be operated until
unsafe conditions have been corrected.
5. If there is a warning sign at the start controls, the
operator shall not start the engine until the warning sign
has been removed by the person who installed it.
6. Before starting the engine, the operator shall make sure
that:
a. All daily inspection and maintenance services have
been performed.
b. All controls are in off the position and all brakes and
locking devices are applied or engaged.
c. All personnel are clear of the crane. Deploy a swing
radius barrier.
7. The operator shall test all controls, limits, and
communication systems at the start of each shift. Any
defects found shall be corrected before operation is
begun.
8. The operator shall not start crane movement if the load
or designated signal person is not within his/her range of
vision or communication.
9. The operator shall understand and respond to signals
from the person directing the lift or from the designated
signal person. When a signal person or crane follower is
not required, the operator is responsible for the lift.
Operator shall obey a stop signal at all times, no
matter who gives it.
10. The operator shall verify that the Capacity Chart being
used is the correct one for the cranes configuration
(boom length, load line reeving, counterweight, etc.).
11. The operator shall verify that:
a. All attachments are properly assembled and
attached to the crane according to the rigging
drawings called for in the Capacity Chart.
b. The counterweight — to include applicable auxiliary
counterweight — is in place and of proper weight.
Maximum required counterweight shall not be
exceeded.
12. The operator shall perform the following operations
before leaving the operator cab for any reason:
a. Park the crane and position upperworks so the
crane does not interfere with operation of other
equipment.
b. Apply travel and swing brakes or locking devices.
c. Land any attached load.
d. Lower the boom onto blocking at ground level or
onto a boom rest if possible.
If the boom cannot be lowered, as determined by a
qualified designated person, it shall be securely
fastened from movement by wind or other outside
forces (see Wind Conditions in Capacity Chart
Manual).
NOTE The designated person shall be familiar with the job
site limitations, the crane configuration, and the
expected weather conditions.
e. Move all controls to off.
f. Apply all drum brakes and pawls.
g. Disengage the master clutch, if equipped.
h. Stop the engine.
NOTE Also read Unattended Crane instructions in Section
3 of the Crane Operator Manual.
13. The operator shall perform the following operations if
power or a control function fails during operation:
WARNING
Safety devices and operational aids such as rated
capacity indicator or limiter, boom and jib angle indicator
or limiter, anti-two-block device, level indicator, swing
limiter, proximity device, etc., may be installed on your
crane. Such devices are to be used only as AIDS TO
ASSIST OPERATOR; their presence on the crane in no
way substitutes for or lessens requirement that operator
knowledge, experience, and judgment are required to
ensure safe operation of the crane.
Crane shall not be loaded beyond applicable static or
dynamic ratings given in Capacity Chart for the crane.
• See Size of Load later in this section.
• For a description of each safety device and
operational aid, see Safety Devices and Operational
Aids in this section and Section 3.
WARNING
Moving Load/Tipping Crane Hazard!
Changing weather conditions including but not limited to:
wind, ice or snow accumulation, precipitation, flooding,
lightning, etc. should be considered when determining the
location and configuration of a crane when it will be left
unattended.
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