Cat Dragline 7400 ELECTRIC Operation & Maintenance Manual - PDF DOWNLOAD

Page 8

GENERAL

BI005692

The.e in.truction. haTe been prepared to aid in erecting a Marion 7400 Electric Walking Dragline, a. a guide for the operator, the groundman, and the oller in their operation, maintenance and lubrication. The engineering drawinl. whick accompany the machine, give the exact location of all part., all nec•••ary dimen.ion., etc. It ia Tery important that extreme care b. taken in a ••embly becalise improper erection may cause unnecessary wear and faulty operation of the machine. When the machine is shipped from the factory. the parts are match marked throughout. Care ahould be taken to follow these match marks when the machine ia assembled. All finished surface. and bearings are protected against corrosion and ahould be thoroughly cleaned just before assembly. When a.sembling, all bearings should be lubricated. Ball and roller bearing. are to be filled only 1/1. full of the proper grease. Alao lubricate all gears and put the proper oU in gear cases up to the correct leTel before the machine ia run. All air and electrical equipment, bearings and fini.hed surfaces should be protected from the weather until the machine ia fully as sembled. Select a level assembling area adjacent to the unloading point approxbnately 300' x 300 ' preferably made up of solid material and with good drainage. It may be adYisable to place gravel or cinders in the immediate erection area. It is important that the derrick be placed so that the greatest loads can be lUted without interferring with the erection of the machine. The recommended podtion of this derrick ia indicated on drawing CR-4585. U the ground ia not level, place the dead men out further than the 300' indicated for boom clearance. MA TERIAL REQUIRED

(For Domestic Shipment) Following is a list of materials required to aid in the erection of the machine. They are to be furnished by the purchaser.

zoo - Standard rails 48 - 2 x 10 or 11. 11 plank 12 to 14 feet long 100 - 2 x 4 - 16 to 20 feet long 8 - Dead men logs 1.0" dia. x 7' to 8' long or can use 31. standard raUroad ties for anchoring derrick guys. 1 - 310 cubic foot air compressor I - Electric welding machine 2 - 25 to 30 ton low lift jacks 1. - 15 ton track jacks 1 - 15 ton chain, hoist MA TERIAL REQUIRED

(For Export Shipment) The following is in addition to the above. No. 1017/1

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