GROVE
Published 10-21-2011, Control # 055-03
2-11
5540F/YB5515 OPERATOR’S MANUAL
SAFETY INFORMATION
2
Do not
depend on grounding. Grounding of a crane affords
l i t t l e o r n o p r o t e c t i o n f r o m e l e c t r i c a l h a z a r d s . T h e
effectiveness of grounding is limited by the size of the
conductor (wire) used, the condition of the ground, the
magnitude of the voltage and current present, and numerous
other factors.
Electrical Contact
If the crane should come in contact with an energized power
source, you must:
1.
Stay in the crane cab.
Don’t panic
.
2.
Immediately warn personnel in the vicinity to stay away.
3.
Attempt to move the crane away from the contacted
power source using the crane’s controls which are likely
to remain functional.
4.
Stay in the crane until the power company has been
contacted and the power source has been de-energized.
No one
must attempt to come close to the crane or load
until the power has been turned off.
Only as a last resort should an operator attempt to leave the
crane upon contacting a power source. If it is absolutely
necessary to leave the operator’s station,
jump completely
clear of the crane. Do not step off.
Hop away with both feet
together.
Do not
walk or run.
Following any contact with an energized electrical source,
the Manitowoc dealer must be immediately advised of the
incident and consulted on necessary inspections and
repairs. Thoroughly inspect the wire rope and all points of
contact on the crane. Should the dealer not be immediately
available, contact Manitowoc Crane Care. The crane must
not be returned to service until it is thoroughly inspected for
any evidence of damage and all damaged parts are repaired
or replaced as authorized by your Manitowoc dealer or
Manitowoc Crane Care.
Special Operating Conditions and
Equipment
Never operate the crane during an electrical thunderstorm.
When operating near transmitter/communication towers
where an electrical charge can be induced into the crane or
load:
•
The transmitter shall be deenergized OR,
•
Tests shall be made to determine if an electrical charge
will be induced into the crane or load.
•
The crane must be provided an electrical ground.
•
If taglines are used, they must be non-conductive.
•
Every precaution must be taken to dissipate induced
voltages. Consult a qualified RF (radio frequency)
Consultant. Also refer to local, state, and federal codes
and regulations.
When operating cranes equipped with electromagnets, you
must take additional precautions. Permit no one to touch the
magnet or load. Alert personnel by sounding a warning
signal when moving a load. Do not allow the cover of the
electromagnet power supply to be open during operation or
at any time the electrical system is activated. Shut down the
crane completely and open the magnet controls switch prior
to connecting or disconnecting magnet leads. Use only a
non-conductive device when positioning a load. Lower the
magnet to the stowing area and shut off power before
leaving the operator’s cab (if equipped) or operator’s station.
PERSONNEL HANDLING
The American Society of Mechanical Engineers issued a
new American National Standard entitled,
Personnel Lifting
Systems, ASME B30.23-2005
. This standard provides,
“lifting and lowering of personnel using ASME B30 Standard
h o i s t i n g e q u i p m e n t s h a l l b e u n d e r t a k e n o n l y i n
circumstances when it is not possible to accomplish the task
by less hazardous means. Unless all of the applicable
requirements of this volume are met, the lifting or lowering of
pe rso nne l us in g ASME B30 Sta nda rd equ ip men t is
prohibited.” This new standard is consistent with the U.S.
Department of Labor, Occupational Safety and Health
Administration (OSHA) regulations for Construction that
state, in 29CFRI926.1431: “General requirements. The use
of a crane or derrick to hoist employees on a personnel
platform is prohibited, except when the erection, use, and
dismantling of conventional means of reaching the worksite,
such as a personnel hoist, ladder, stairway, aerial lift,
elevating work platform or scaffold, would be more
hazardous or is not possible because of structural design or
worksite conditions.” Additional requirements for crane
o p e r a t i o n s a r e s ta t e d i n
A S M E B 3 0 . 5 , M o b i l e A n d
L o c o m o t i v e C r a n e s
, a n d i n
O S H A r e g u l a t i o n s
29CFRI910.180 for General Industry and 29CFRI926.1431
for Construction
.
Use of a Manitowoc crane to handle personnel is acceptable
provided:
•
The requirements of the applicable national, state and
local regulations and safety codes are met.
•
A determination has been made that use of a crane to
handle personnel is the least hazardous means to
perform the work.
•
The crane operator shall be qualified to operate the
s pec if ic t yp e of ho is ting eq uipme nt us ed in t he
personnel lift.
•
The crane operator must remain at the crane controls at
all times when personnel are off the ground.
Reference Only
