GE GEK-95352 Manual - Free PDF Download

Page 2 - CONTENTS; Subject

GEK-95352 2 CONTENTS Subject Page Safety Precautions ...................................................................................................................................... 3Introduction .....................................................................................................

Page 3 - Safety Precautions

GEK-95352 3 Safety Precautions High voltage and rotating partscan cause serious or fatal in-jury. Installation, operationand maintenance of electricmachinery should be per-formed by qualified personnel.Familiarization with NEMA Publication MG-2, Safety Standard for Construc-tion and Guide for Select...

Page 4 - INTRODUCTION

GEK-95352 4 I. INTRODUCTION General Electric high-thrust vertical mo-tors covered by these instructions arecarefully constructed of high-quality ma-terials and are designed to give long andtrouble-free service when properly in-stalled and maintained. These motors aregenerally used to drive pumps. Bo...

Page 5 - Unpacking

GEK-95352 5 Weather-Protected II motor constructionis shown in Figure 2. This enclosure ischaracterized by additional protection atthe air inlet and outlet passages and bygaskets, drains, and other features tomake it suitable for use outdoors in severeclimates. Filters can be supplied for theair-inl...

Page 6 - INSTALLATION; Location and Mounting

GEK-95352 6 III. INSTALLATION Installation should be in accor-dance with the National Electri-cal Code and consistent withsound local practices. Couplingguards should be installed asneeded to protect against acci- dental contact with moving parts. Machinesaccessible to personnel should be furthergua...

Page 7 - Alignment of Solid-Shaft Motors; otors; General; Bolt Size; Self-Release Couplings

GEK-95352 7 The SYSTEM REED CRITICALFREQUENCY should be 25% above orbelow motor operating speed in order toavoid excessive vibration. C. Alignment of Solid-Shaft Motors Accurate mechanical lineup is essentialfor successful operation. Mechanical vi-bration and roughness when the motor isrunning may i...

Page 8 - Table 1; Frame Size

GEK-95352 8 half-coupling, and the top half-coupling must not bind on the lowerhalf. Otherwise, the adjusting nutlock-screw may break instead of thecoupling halves separating. Shouldthis happen, the motor would con-tinue to drive the pump line shaft,and the joints would continue to un-screw. Serious...

Page 12 - COOLING COIL CONNECTION FITTINGS; OPERATION; Check insulation resistance as

GEK-95352 12 See Figure 4 and the followingparagraphs for further instructions.Also see maintenance instructions. To make water connections, simplyremove the pipe plugs (furnished forshipping) from brass fittings B andmake connection to female pipe-tapped hole in accordance with ap-plicable codes an...

Page 15 - MAINTENANCE; move dirt or dust from his person or clothing.; Coupling Maintenance

GEK-95352 15 V. MAINTENANCE Before initiating maintenanceprocedures, disconnect allpower sources to the motor andaccessories. For machinesequipped with surge capacitorsdo not handle capacitor until it is discharged by a conductor simultaneouslytouching all terminals and leads, includingground. This ...

Page 16 - Relubrication

GEK-95352 16 NOTE: WHENEVER THE DISMAN-TLING OF COUPLINGS IS NECES-SARY, THE USE OF WITNESSMARKS WILL ASSURE A BAL-ANCED CONDITION WHEN RE-ASSEMBLY IS COMPLETE. Bolts on both bolted couplings and non-reverse couplings should be checked pe-riodically to be sure they are tight. Seerecommended tighteni...

Page 21 - Cleaning With Solvents

GEK-95352 21 equipment, and on the insulationsystem. However, vacuum and/orcompressed air cleaning with non-metallic hose tips should precedecleaning with water and detergent orwith solvents. Tightly adhering dirtmay require gentle brushing orwiping to get it loose. To prevent injury to eyes andresp...

Page 22 - RENEWAL PARTS

GEK-95352 22 Windings cleaned with solventshould be dried thoroughly by cir-culation of dry air before voltage isapplied. *One commercial source of 1,1,1Trichloroethane is Chlorothene NU,which is a Trade-mark of the DowChemical Company, Midland,Michigan. 5. Revarnishing Windings After several cleani...

Page 23 - VII. TROUBLE SHOOTING CHART; Affected Parts

GEK-95352 23 VII. TROUBLE SHOOTING CHART Affected Parts Difficulty What to Check Windings Overheating • Calibration of measuring instrument • Excessiv e load • Unbalance a-c current • Improper or restricted ventilation • Excessiv e ambient temperature • Short circuited coil or windings • Dirty windi...