Ge GEH-5304A User Manual

GEH-5304AGE Industrial SystemsInstructionsDirect Current Motors & GeneratorsType CDFrames 2512AT, 2513ATFrames 2812AT, 2813AT

GEH-5304A10The radial load, W, produced by the belts when tightened just enough to transmit the load withoutslipping is given by the relation:126,000

GEH-5304A11Mounting may be either horizontal or vertical for these bearing life determinations, as long as no axialload (i.e., suspended load) other t

GEH-5304A12Before starting the motor, remove all unused shaft keys and loose rotating partsto prevent them from flying off.A. Inspection Before Starti

GEH-5304A13Table 3Bearing Life at 1750 RPM Average Speed Vs. Load, W(For other average speeds, multiply life by life factor)Less ThanSpeed 500 650 850

GEH-5304A14Table 4Power Supply AvailableACDEKA√****C√√***D√√√**E√√√√*NP Rating CodeK√√√√√√ Compatible power supply.* External inductance may be n

GEH-5304A152. When intended for use on a power supply other than “A”, “C”, “D”, “E” or “K”, the motor willbe identified as follows:M / N F - V - H

GEH-5304A16Thermostats automatically reset after the motor has cooled somewhat. In orderto prevent property damage or injury to personnel, the contro

GEH-5304A17The surface of a space heater block becomes hot when the heater is energized.The temperature rise above the ambient temperature may be as h

GEH-5304A18Table 7Bolt Tightening Torque ValuesHex Head (C1C5) Grade 5Medium Carbon SteelThread Sizes (Without Lubricant)(UNC-2A) Lb-Ft N-m1/4-20 7-9

GEH-5304A192. Noise and VibrationCheck for unusual vibration or noises that might indicate rubbing or interference.Vibration of new machines at the be

GEH-5304A2These instructions do not purport to cover all of the details or variations in equipment nor to provide for every possiblecontingency to be

GEH-5304A20A. DisassemblyThe following procedure should be used for disassembly:1. Remove all covers.2. Disengage brush springs.3. Remove complete bru

GEH-5304A21C. BearingsBall bearing and roller bearing housings are packed with grease at the factory. Therefore, greasing is notrequired before the m

GEH-5304A22Table 11Sources of Supply for Bearing GreasesGE Supplier’sTemperature Designation Supplier DesignationStandard TemperatureD6A2C5 GE Supply

GEH-5304A23a. Unfasten pigtail.b. Release spring by pushing in slightly to disengage locking tab, then pull spring back.c. Remove brush.2. Brush Insta

GEH-5304A24Do not use liquid solvents of any kind. Solvents will not remove carbon dustaccumulations, but will spread and wash them into critical are

GEH-5304A25G. MechanicalCheck the condition of air filters and replace filters if they are dirty. Check for unusual noises which werenot present when

GEH-5304A26ues.

GEH-5304A27For maximum insulation life, these three causes of insulation failures should be prevented:1. Contamination.2. Mechanical factors.3. High t

GEH-5304A28Table 13Effect of Temperature on Insulation ResistanceWinding Temperature Multiplying Factor to Obtain Insulation(Degree C)Resistance at 40

GEH-5304A29Dirt can be removed from stationary parts of the machine by either compressed air or a vacuum nozzle or acombination of both. Air should b

GEH-5304A3Table of ContentsSubject PageIntroduction...

GEH-5304A30FREON TF is a chlorofluorocarbon. Chlorofluorocarbons have been identifiedas upper atmosphere ozone depletors. The use of Freon in indust

GEH-5304A31An extreme overload or electrical failure may result in heating or arcing, whichcan cause the insulation to give off noxious fumes. All po

GEH-5304A32Table 14Recommended Spare PartsNumber of Duplicate Motors in ServiceMoreDescription 1 2-4 5-10 10-20 Than 20With or Without Electrical Shop

GEH-5304A33Commutator Check ChartFor Comparing Commutator Surface MarkingsSATISFACTORY COMMUTATOR SURFACESLIGHT TAN FILM over entire commu-tator surfa

GEH-5304A34Figure 3Application Information for CD2512AT – CD2813AT Frames

GEH-5304A35Figure 4Blower Unit, Commutator End Mounted for Use With CD2512AT – CD2813AT Frames

GEH-5304A36Figure 5Dimensions, Air Openings for CD2512AT – CD2813AT Frames

GEH-5304A37Table 15Air Flow RequirementsFor Separately Ventilated MotorsStatic PressureInches of WaterABBase Standard EnclosedSpeed Separately Separat

GEH-5304A38Figure 6Accessory Mounting CD2512AT – CD2813AT

GEH-5304A39Figure 7Accessory Mounting CD2512AT – CD2813AT

GEH-5304A4Subject PageBrushes...

GEH-5304A40

GEH-5304A41Type CD Frames 2512AT – 2813ATDC Motors & GeneratorsFigure 8Type CD Frames 2512AT – 2813AT

GEH-5304A42General Electric CompanyWe welcome comments and suggestions to make this publication more useful.Your Name Today’s Date If needed, how can

GEH-5304A43Detach and fax or mail to the address noted above.

GEH-5304A44……………………………………………….…………………Fold here and close with staple or tape………………………………….………………….PlaceStampHereGE INDUSTRIAL SYSTEMSINDUSTRIAL ENGINE

GEH-5304A45Document Revision HistoryRev # Date Author ISAAC # Description0 12/14/99 GJG N/A Conversion from PageMaker.

GEH-5304A5Direct Current Motors and GeneratorsType CDFrames 2512AT, 2513AT, 2812AT, 2813ATI. INTRODUCTIONThis instruction book covers the CD2512AT-CD2

GEH-5304A6Brushes should not remain in contact with the commutator during prolonged storage because corrosion mayoccur and later result in flat spots

GEH-5304A7Table 1Typical Weights**Motor (LessAccessories) ArmatureCD2512AT 500 120CD2513AT 550 135CD2812AT 650 160CD2813AT 750 190 **Typical weights.

GEH-5304A8B. MountingMotors and generators should be mounted on rigid and solid foundations. Level the base (or the machine).Hold-down bolts should b

GEH-5304A9Horizontal alignment should be corrected by shifting machines on the base.b. Alignment ProcedureFlexible Couplings, Self-Supporting BasesBef