GE GEH-5304A manual Brush Installation

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GEH-5304A

a.Unfasten pigtail.

b.Release spring by pushing in slightly to disengage locking tab, then pull spring back.

c.Remove brush.

2.Brush Installation

The following procedure should be used to install brushes:

a.Place brush in holder with bevel towards spring. Brushes should move freely in holder.

b.Push spring into position until lock tab engages slot and locks.

c.Connect pigtail.

The presence of silicone in DC motors, particularly with totally enclosed con- structions, will cause rapid brush wear. Sources of silicone include oils, RTV compounds, hand creams, mold release agents, grease and some insulating varnishes. These silicone substances must be avoided to ensure proper motor performance.

Brushes should have their commutator contact surfaces curved to exactly fit the commutator surface. This is accomplished by “sanding in” the brushes in each brushholder separately. Draw a sheet of coarse non-metallic sandpaper under the brushes with the rough side toward the brush, while the brushes are pressed firmly toward the commutator. Do not use emery cloth. When sanding brushes, do not get carbon dust into the windings. The motor should be thoroughly blown out after sanding the brushes. This can be accomplished by cleaning the dust from the commutator, brushholders and adja- cent parts with a vacuum cleaner, air blast or other suitable means. After the rough sanding, the brushes should be finely ground to fit using a brush seater. Rotate motor at around nameplate RPM. Make sure there is no load on the machine (armature current is nil). Carefully and lightly rub the brush seater across the entire commutator surface for 10 or 15 seconds. Repeat between each and every set of brush studs. Reverse motor rotation and repeat. Stop motor and cut all power to the mo- tor and check brush face. Continue seating until brush face is 85% seated. Again, the motor must be thoroughly blown out after brush seating, the same as with sanding.

Avoid inhaling carbon and seater dust. GE Industrial Systems recommends using a dust mask during sanding, seating and blowing or vacuuming.

High voltage and rotating parts can cause serious or fatal injury. The use of all electric machinery, like all other utilization of concentrated power and rotating equipment, can be hazardous. Installation, operation and maintenance of elec- tric machinery should be performed by qualified personnel. Familiarization

with NEMA Safety Standards for Construction and Guide for Selection, Installa- tion

and Use of Integral HP Motors and Generators , National Electrical Code and sound local prac- tices is recommended.

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Contents Instructions Copyright 1985, 1992, 1999 General Electric Company Table of Contents Storage of Renewal Parts Storage II. ReceivingHandling Location Typical WeightsCoupled Drive MountingAlignment Bearing Life GroutingBelt Drives Belt Tension Factor, Kb Maximum Continuous Thrust Capacity, Lbs Special Load ConsiderationsPinion Drives Thrust LoadsCommutator and Brushes Rectified Power SuppliesInspection Before Starting Bearings and CouplingsFrame Sizes CD2812AT and CD2813AT Speed Life Factor Less Than 500Bearing Life at 1750 RPM Average Speed Vs. Load, W Power Supply Available Thermostats ConnectionsProtective Devices Motor Field HeatingA1, A2 F1, F2, F3, F4, etc. T1, T2, T3, T4, etc Accessories & Special Device MarkingsLead Markers Function WindingGeneral Mechanical Inspection Ventilation SystemInspection After Starting Accessory MountingBolt Tightening Torque Values BrakesNoise and Vibration Inspection After Short Time in ServiceReassembly DisassemblyStandard Bearings for CD2512AT-CD2813AT Motors Replacement of BearingsRecommended Regreasing Periods Frame Size CD2512AT- CD2813AT AverageSources of Supply for Bearing Greases Standard Temperature 15F to 212F -10C to 100CLow Temperature High Temperature-20F to 350F -28C to 176CBrush Installation Commutator Diameters In Inches Brush AssemblyCommutator Lubrication of Flexible Couplings MechanicalShaft End Play Waterproof MachinesGEH-5304A Ues Insulation Resistance Measurement Testing Methods Visual InspectionCleaning of Windings Effect of Temperature on Insulation ResistanceOily Dirt Repair Service Shop CleaningDrying of Windings Storage of Renewal Parts VI. Renewal PartsWith Electrical Shop Facilities Number of Duplicate Motors in Service DescriptionRecommended Spare Parts With or Without Electrical Shop FacilitiesCommutator Check Chart Application Information for CD2512AT CD2813AT Frames GEH-5304A Dimensions, Air Openings for CD2512AT CD2813AT Frames Renewal Parts For CD2512AT CD2813AT Frames Air Flow Requirements For Separately Ventilated MotorsFrame 2512AT, 2513AT 2812AT, 2813AT Base Speed AllAccessory Mounting CD2512AT CD2813AT Accessory Mounting CD2512AT CD2813AT GEH-5304A Type CD Frames 2512AT 2813AT 5HDGHU&RPPHQWV Detach and fax or mail to the address noted above Fort Wayne in 46801-2205 USA Isaac #

GEH-5304A specifications

The GE GEH-5304A is a sophisticated electronic device that has garnered attention for its applications in various industrial sectors. This cutting-edge equipment is primarily used for monitoring and controlling processes through advanced technology integration, making it a valuable asset for businesses looking to enhance operational efficiency.

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In summary, the GE GEH-5304A stands out in the market due to its advanced data acquisition capabilities, compatibility with multiple communication protocols, user-friendly interface, predictive maintenance functionalities, and rugged design. These features make it an essential tool for industries seeking to optimize performance, enhance monitoring, and ensure process reliability. With the ongoing evolution of technology, devices like the GEH-5304A are pivotal in driving operational success across various sectors.
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