Technical Manual
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R
BI005634
BUCYRUS
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BI005634
MINlNG
ELECTRICAL
MANUAL DRESSER INDUS'riors, INC. • MARION DIVISION 617 West Center Street• P.O.Box 505 • Marion, Ohio 43302 USA Manual No. 2171 Book 3 of 3 S/N 23332 S/N23333 S/N 23336 082990
301-M
SHOVEL
SERVICE
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BI005634 Armored Motors, Type MDB00, GEH-32581 CONTENTS SUBJECT PAGE SUBJECT PAGE INTRODUCTION ........................................................ 5 ASSEMBLY-HORIZONTAL MOTOR 21 RECEMNG, HANDLING AND STORAGE 5 Installing Field Coils (Armature Removed) .... 21 RECEMNG 5 Assembly of Brushholder .................................. 21 HANDLING ............................................................. 5 Pressing New Shaft Into Armature ................... 27 • STORAGE ................................................................ 6 DESCRIPTION ............................................................ 6 CLASSIFICATIONS 7 Replacement Bearings ...................................... 27 Assembly of Bearings ........................................ 27 Final Assembly of Horizontal Motor ................ 27 MOTOR BEARINGS 7 DISASSEMBLY- VERTICAL MOTOR ................ 29 VENTILATION 7 Removal of Armature ........................................ 29 INSTALLATION .......................................................... 8 Removal of Commutator End Bearing ............ 31 LOCATION 8 Removal of Failed Drive End Bearing 31 PROTECTION 8 ASSEMBLY- VERTICAL MOTOR ....................... 31 MOUNTING 8 Replacement Bearings ...................................... 31 ALIGNMENT 8 Assembly of Commutator End Bearing 31 COUPLED DRIVE ................................................... 8 Assembly of Drive End Bearing 32 INSTALLATION ADVICE FOR MDT Final Assembly of Vertical Motor 32 TABLE MOTORS ................................................ 8 BRUSH MAINTENANCE ...................................... 33 OPERATION ................................................................ 8 COMMUTATION ADJUSTMENT 33 INSPECTION BEFORE STARTING 9 COMMUTATOR MAINTENANCE ...................... 34 Bearings ............................................................... 9 Commutator Turning, Stoning, and Insulation ............................................................. 9 Sanding ......................................................... 34 Commutator and Brushes 9 Commutator Film Care ..................................... 36 Connections 9 Commutator Check Chart 36A Shunt Field Excitation 10 Commutator Clean-up by Protective Devices 10 Air-cure Method 37 Space Heaters ........ ................ 10 Procedure 37 Speed Limit Device . . .................. ....................... 10 PINION AND COUPLINGS 37 Thermostats ..... ......... ...... 10 Removal From Armature 37 Ventilation System ............................................. 11 Mounting Couplings, Pinions and General Mechanical Inspection 11 Brake Wheels on Shaft ................................. 3 7 Tightening Bolted Joints .................................. 11 Pinion, Coupling, and Brake Wheel INSPECTION AFTER STARTING ....................... 12 Mounting ...................................................... 38 Bearings ............................................................. 12 RECONNECTION OF POLE FACE Noise and Vibration .......................................... 12 ASSEMBLIES 39 BEFORE PUTTING MACHINE IN SERVICE 13 INSULATION ........................................................ 40 INSPECTION AFTER SHORT TIME TESTING METHODS ........................................... 41 IN SERVICE ....................................................... 13 Visual Inspection .......................................... 41 MAINTENANCE 13 Insulation-Resistance Measurement 41 PRODUCTIVE MAINTENANCE .......................... 13 CLEANING OF WINDINGS ................................. 42 MAINTENANCE PROCEDURES 15 FIELD SERVICE CLEANING ................................ 42 • REPAIR ................................................................... 15 Dry Dusts ............................................................ 42 FAILURE 16 Oily Dirt ............................................................. 42 DISASSEMBLY-HORIZONTAL MOTOR ......... 16 Drying of Windings ........................................... 43 Removal of Armature .......... .. . ... . .. ... ..... 16 SERVICE SHOP CLEANING 43 Removal of Bearings ... 16 LUBRICATION 43 Removal of Shaft From Armature .................... 17 Armature Bearings ............................................ 43 Removal ofBrushholder 21 Frequency of Lubrication ................................. 44 Removal of Field Coils 21 RENEWAL PARTS ....................................................... 46 3
GEH-32581, Armored Motors, Type MDB00
LIST OF ILLUSTRATIONS
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FIG.NO. Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 7A Fig. 7B Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 Fig. 13 Fig. 14 Fig. 15 Fig. 16 Fig. 17 Fig. 18 Fig. 19 Fig. 20 Fig. 21 Fig. 22 Fig. 23 Fig. 24
PAGE Shaft and Bearing Seal ...................................................................................................................................... 9 Type MD808 Bearing Parts ............................................................................................................................ 1 7 Type MD820 Through MD824 Section ......................................................................................................... 18 Type MDP828 Section .................................................................................................................................... 19 Type MD808 With Top Half Opened For Removal of Armature 20 Compensating Winding Connections At Frame Split 22 Drive End Brazed Pole Face Connections ..................................................................................................... 23 Commutator End Brazed Pole Face Connections ........................................................................................ 24 Typical Bolted Pole Face Connection ........................................................................................................... 25 Removal of Inner Race of Bearing With Puller ............................................................................................ 26 Shaft Removal ................................................................................................................................................. 28 Pressing in New Shaft MD802 Through MD818 ........................................................................................... 28 Pressing in New Shaft MD820 Through MD828 ........................................................................................... 28 Typical Section View of Bearing Assembly. Types MDV810 Through MDV818 Vertical Motors 29 Type MDV820 Thru MDV824 Section .......................................................................................................... 30 Micrometer Depth Gage Being Used To Measure Pinion Advance ............................................................ 40 MDT Drive End Bearing ................................................................................................................................ 45 MDP804 Through MDP808 Motors, Exploded View - Horizontal ............................................................. .49 MDV804 Through MDV808 Motors, Exploded View- Vertical ................................................................... 50 MDP810 Through MDP818 Motors, Exploded View-Horizontal .............................................................. 51 MDV810 Through MDV818 Motors, Exploded View- Vertical ................................................................... 52 MDP820, Exploded View - Horizontal ........................................................................................................... 53 MDP822 Motors, Exploded View - Horizontal .............................................................................................. 54 MDV820, MDV822 Motors, Exploded View-Vertical .................................................................................. 55 MDP824 Motors, Exploded View - Horizontal .............................................................................................. 56 MDV824 Motors, Exploded View- Vertical ................................................................................................... 57 LIST OF TABLES TABLE NO. PAGE Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Typical Weights ................................................................................................................................................. 5 Speed Limit Device - Maximum Current Ratings ........................................................................................ 1O Thermostat- Maximum Current Ratings ..................................................................................................... 10 Bolt Tightening Torque Values - Metallic Parts ........................................................................................... 11 Bolt Tightening Torque Values - Non-Metallic Parts to Metallic Parts ...................................................... 12 Commutator Condition vs. Recommended Remedy ................................................................................... 36 Coupling Hub or Pinion Mounting Data ...................................................................................................... 39 Coating Material ............................................................................................................................................. 41 Effect of Temperature on Insulation Resistance .......................................................................................... 44 Bearing Greases .............................................................................................................................................. 44 Bearing Lubrication Data ............................................................................................................................... 45 Metric Conversion Factors ............................................................................................................................. 48 Suggested Maintenance Schedule ................................................................................................................................... 14 Grading of Commutation ................................................................................................................................................. 35 Troubleshooting Guide .................................................................................................................................................... 47 4 •
INTRODUCTION
This instruction book covers the MDS00 line ofArmored Motors.
WARNING: High voltage and rotating parts can cause serious or fatal injury. The use of electric machinery, like all other utilization of concentrated power and rotating equipment, can be hazardous. Installation, operation, and maintenance of electric machinery should be performed by qualified personnel. Familiarization with NEMA safety standard for construction and guide for selection, installation, and use ofintegral HP motors and generators, National Electrical Code, and sound local practice is recommended.
Installation of the machine where hazardous, flammable, or combustible vapors or dusts present a possibility of explosion or fire should be in accordance with the National Electrical Code, Articles 500-503, and consistent with sound local practices.
These instructions do not purport to cover all details or variation in equipment nor to provide for every possible contingency or hazard to be met in connection with
Armored Motors, Type MDB00, GEH-32581
installation, operation and maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchasers' purposes, the matter should be referred to GE Motors - DM&G.
RECEIVING, HANDLING ANDSTORAGE RECEMNG
The equipment should be placed under adequate cover immediately upon receipt as packing coverings are not suitable for out-of-doors or unprotected storage. This includes adequate protection from construction dirt, during and after installation.
Each shipment should be carefully examined upon arrival. Any damage should be reported promptly to the carrier and to the nearest office of GE Motors.
HANDLING
Motors can be lifted by using hooks or slings in the lifting lugs on the frame. These lugs are designed to safely carry the weight of the whole machine. Blowers should be protected with spreader bars if necessary. Ventilating hoods may have to be removed to clear hooks. Do not lift the machine by the shaft extensions. (Refer to the Typical Weights, Table 1.)
*Approximate weights for typical motors in each frame size.
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POUNDS KILOGRAMS FRAME SIZE ARMATURE ONLY COMPLETE MOTOR ARMATURE ONLY COMPLETE MOTOR 802 160 550 75 250 803 210 780 95 355 804 290 960 130 435 806 370 1300 170 590 808 540 1820 245 825 810 720 2480 325 1125 812 960 3310 435 1500 814 1440 4620 655 2100 816 2030 5840 920 2650 818 2630 7730 1195 3500 820 3040 12100 1380 5490 822 3850 15200 1745 6700 824 4650 19100 2110 8660 828 11060 39100 5020 17740
TABLE 1 TYPICAL WEIGHTS*
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BI005634
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BI005634
• Thank you very much for reading the preview of the manual.
• You can download the complete manual from: www.heydownloads.com by clicking the link below
• Please note: If there is no response to CLICKING the link, please download this PDF first and then click on it.
CLICK HERE TO DOWNLOAD THE COMPLETE MANUAL
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