OSHA DESCRIPTION
1910.179(a)(6)
"Gantry crane" means a crane similar to an overhead crane except
  that the bridge for carrying the trolley or trolleys is rigidly supported on
two  or more legs running on fixed rails or other runway.

THESE CRANES CAN BE VERY USEFUL FOR COMPANYS THAT DONT NEED TO PICK UP HUGE LOADS BUT STILL NEED THE EXTRA HELP ALSO BEING ON WHEELS THEY CAN BE MOVED TO DIFFERENT AREAS WHEN NEEDED.

WHILE THERE ARE MANY DIFFERENT TYPES OF CRANES, THEY ALL HAVE THE ABILITY TO MAKE MANY JOBS MUCH EASIER BY BEING ABLE TO LIFT ENORMOUS WEIGHT. BUT THEY ALSO SHARE THE POTENTIAL FOR DANGER WHEN THEY ARE NOT OPERATED SAFTLY.

CRANE-RELATED ACCIDENTS ARE OFTEN SERIOUS, DUE TO THE CUMBERSOME AND HEAVY LOAD THAT ARE LIFTED. A SMALL MISCACULATION, OR A BRIEF MOMENT OF INATTETION, AND DISASTER COULD STRIKE. ONCE A LOAD FALLS NOT MUCH CAN BE TO STOP IT, AND THERE IS LITTLE TIME FOR PEOPLE TO SAFELY MOVE OUT OF THE WAY. A CO-WORKER COULD BE INJURED, OR EXPENSIVE EQUIPMENT COULD BE DAMAGED OR DESTROYED.... INCLUDING THE CRANE ITSELF.

IT IS ESTIMATED THAT OVER 90% OF CRANE-RELATED ACCIDENTS ARE CAUSED BY HUMAN ERROR. SO IT IS VERY IMPORTANT FOR EMPLOYEES TO LEARN HOW TO WORK WITH CRANES SAFELY. THEY NEED TO KNOW WHAT THE PROPER PREPARATION, EQUIPMENT AND ATTITUDE, COSTLY ACCIDENTS AND INJURIES CAN BE AVOIDED

OBJECTIVES

BE ABLE TO CONDUCT A THOROUGH INSPECTION OF BOTH THEIR WORKSITE AND THE CRANES THEY ARE WORKING WITH

UNDERSTANDING THE DIFFERENCES AND THE SIMILARITIES AMONG THE MAJOR TYPE OF CRANES

BE FAMILIAR WITH BOTH GENERAL AND OPERATIONAL CRANE SAFETY DEVICES AND KNOW HOW THEY FUNCTION

KNOW THE BEST METHODS OF LIFTING AND LOWERING A LOAD

BE ABLE TO RECOGNIZE AND USE STANDARD HAND SIGNALS TO DIRECT DIFFERENT CRANE OPERATIONS

THIS IS A LINK TO THE OSHA WEBSITE WHERE YOU CAN FIND REGULATIONS FOR OVERHEAD CRANES AND OTHER USEFUL INFORMATION http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9830

CONVERTING YOUR PENDANT STATIONS TO RADIO CONTROL CAN HAVE ALOT OF BENIFETS. BEING ABLE TO CONTROL YOUR OVERHEAD CRANE FROM A DISTANCE NOT LIMITED TO A CORD, ALSO NO OBSTACLES TO TRY TO GET THE PENDANT CORD AROUND, RADIOS FIT IN THE PALM OF YOUR HANDS AND EASY TO USE.

WE SELL AND INSTALL NEW RADIO CONTROLS JUST CALL

THIS IS THE WIKI LINK PAGE FOR OVERHEAD CRANES http://en.wikipedia.org/wiki/Overhead_crane IT HAS SOME GOOD FACTS AND HISTORY OF OVERHEAD CRANES. CHECK IT OUT.