GE GE752 manual Skidding, Protection, Armatures, Preparation of BOX

Page 70

GEK±91584D, Vertical Drilling Motor, Type GE752

1.Remove all corrosion.

2.Wipe off the surface with clean rags and wet with petroleum spirits GE±D5B8.

3.Follow with a clean rag wet with methanol, then wipe dry. DO NOT touch the cleaned surface with bare hands.

4.Slush immediately after cleaning with GE±D6C6A1 slushing compound.

SKIDDING

curely support and enclose the armature in a totally en- closed wooden box of sufficient strength to protect the it from damage.

1.Clean the armature by removing dirt, oil or grease from its surface.

2.Treat all unpainted, exposed finished surfaces as follows:

a.Remove any corrosion.

b.Wipe off the surface with a clean cloth dipped in petroleum spirits, GE±D5B8.

Use yellow pine timbers large enough to support the weight of the machine. The recommended size is illus- trated in Fig. 44.

PROTECTION

When any apparatus is shipped in the open, it should be fully protected from rain, snow, dirt, etc., by covering with some suitable weatherproof material.

ARMATURES

To prepare drilling motor armatures for shipment or storage, clean, slush and wrap the armature. Then, se-

7±1/2º

7±1/2º

3/4º DIA. (4 HOLES)

 

 

 

 

 

 

 

 

 

25±1/4º

23±1/2º

 

 

 

2º X 6º

 

 

48º

X 6º

X 8º

X 8º

X 6º

 

33º

 

 

 

 

 

 

2º X 6º

 

 

 

 

25±1/4º

62±1/4º

 

11±1/2º

 

 

 

 

 

 

 

FIG. 44. CONSTRUCTION DETAILS. E±7754.

c.Wipe off the surface with a clean rag, dipped in methanol, and wipe dry. DO NOT touch the cleaned surfaces with bare hands.

d.Immediately after cleaning, slush the cleaned surface with GE±D6C6A1 shushing com- pound.

3.Wrap heavy paper or cardboard around the com- mutator for protection.

4.Wrap and secure waterproof paper around ar- mature punchings. This will prevent saddle tim- ber moisture from condensing on the core punchings.

5.Wrap both ends of the shaft with Grade C, Type 1, wax treated cloth and tape it securely into place.

NOTE: Wherever metal parts come in contact with the wood, insert a good grade of water- proof paper between metal and wood. This will prevent rust formation from the condensation of moisture on the metal.

PREPARATION OF BOX

1.Make a suitable box from yellow±pine lumber us- ing timbers of proper size to support the weight of each armature. See Fig. 45.

2.Make 4 saddle blocks of 3 by 6 in. timber cut out to fit circumference of armature core. Nail two to the bottom of the box in the proper position to

70

Image 70
Contents Contents Vertical Drilling Motor Type GE752Introduction General DescriptionGEK±91584D, Vertical Drilling Motor, Type GE752 Vertical Drilling Motor, Type GE752, GEK±91584D Model DifferencesContd Model Differences DataData Contd Carbon BrushesPole Bore Diameter measured at center of pole Motors Min Max Motor Ratings Continuous Max. HP Shunt UP Special Tools Equipment Grounding InstructionsLubrication Grounding Procedures FigOverhaul Grease Tubes and Pipe PlugsCovers, Seals, Latches Inspection MonthlyBrushholders Fig Brushholder Sleeves Brush Spring PressureCreepage Band BrushesCommutator Flash RingBrushholder Replacement Basic Repairs Brush ReplacementSEMI±ANNUALLY Brushholder Clearance Adjustment InstallationCommutator Resurfacing Sanding Procedure Hand Stoning ProcedureGrinder Installation Fixture GrindingCommutator GRINDER. E±18249 Grinding ±19771AAir Curing Commutator Testing Before DisassemblyBasic Overhaul Bar±To±Bar Resistance Test DisassemblyMegohmmeter Test Armature Removal From FrameCOMMUTATOR±END Bearing Pilot Longitudinal D732922 CHG. N. E±28621D Models See , Description Puller Tools 41D731569 CHG . E±14383C Puller TOOLS. E±18155A Models US1, AUT Longitudinal D735357, CHG. A. E±37949B Models See Table Cleaning Steam CleaningBearing Inspection Vapor DegreasingAnti±Friction Bearings/Shaft Tapers/Bearing Fits ArmatureArmature Shaft Inspection CommutatorMotor Frame Armature Insulation 41D731545 CHG. F. E±18156A See Note Brushholders Lubrication of BoltsConnection Diagram 493A210 CHG . E±39092B Riser Width Creepage Band ReplacementRewinding Armature DiameterHydraulic Press Preferred Method ProcedureCommutator Tightening Torque Wrench Acceptable MethodSpin Seasoning Commutator Assembled On Armature Commutator ResurfacingTurning To Change Motor DirectionConnection Diagram 41A330278, CHG . E±38055B Connection Diagram 41A330179, CHG. A. E±37950A Raking ±4270BUsed Armature Resistance MeasurementTest After Repair Armature High Potential Test Rewound ArmatureProcedure for New Coil±Pole Assembly ReplacementCoil Installation Motor Frame Field CoilCoiled Frame Assembly 41D732353 CHG. N. E±39094A Models See , Coiled Frame Assembly 41D732345 CHG. V. E±39095A BOX Ground A1 and A2 View AT E Cables with P65 Coiled Frame Assembly 41D735440, CHG. A. E±38056B Description Magnet Frame Coiled Frame Assembly 41D735343, CHG. C. E±37951C Hardened Washer 1 1/4 Brazing Coil Terminals Gas Torch BrazingTest After Repair Flood Dipping Coiled FrameCoiled Frame Without Armature Balancing Armature ReassemblyVarnish Treatment Armature Commutator±End Bearing Armature BearingsDrive±End Bearing Figs , 35, 36 All Models Except US2, UP6, AUT2 and AUP5DRIVE±END Bearing ASSEMBLY. E±18166E DRIVE±END Bearing ASSEMBLY. E±39301 Models US2, UP6, AUT2 and AUP5DRIVE±END Bearing Assembly 41B537821, CHG. B. E±37952B Armature Assembly Into Frame Models UP and AUPCOMMUTATOR±END Bearing Assembly 41B532745 CHG. F. E±39090A COMMUTATOR-END Bearing Assembly 41B538068 CHG . E-39300 Checking Internal Clearance Brush Installation Hub Fitting HUB MountingHub Mounting Testing Series Machines Testing After OverhaulModels 5GE752AUP, AUT Ventilated 2300 cfm at 7.6 in. H2O at Commutator Chamber Testing Shunt Machines Models 5GE752UP and USMotor Operation UnventilatedLocking the Armature For Shipment Cleaning and SlushingRemoving Armature Locking Arrangement ShippingArmatures SkiddingProtection Preparation of BOXBoxing the Armature Storage Placing Into StorageRemoving from Storage Shipping BOX with Armature Less COVER. E±3784Vertical Drilling Motor, Type GE752, GEK±91584D OUTLINE, UP and AUP 41E903631 CHG. H. E±28755B Hole Grease Vent Tube Grease Tube Holes REF OUTLINE, US1, AUT 41E903745, CHG. A. E±37954B ºDº ºBº Vertical Drilling Motor, Type GE752, GEK±91584D GE Transportation Systems