GE manual Contd MODEL DIFFERENCES, Data, GEK±91584D, Vertical Drilling Motor, Type GE752

GEK±91584D, Vertical Drilling Motor, Type GE752

TABLE 1 (Cont'd) MODEL DIFFERENCES

Motor	Model Differences	Superseded By
752AUP3	Same as AUP2 except:
	± Has a single grease tube at drive end which is
	part of framehead/bearing assembly for ease of
	armature disassembly.
752AUP4	Same as AUP3 except:
	± Has improved insulation for higher temperatures.
752AUP5	Same as AUP4 except:
	± Has an improved commutator±end bearing assembly and an
	ABS±certified armature shaft.
752AUT1	This is a series motor with the following distinctions:
	± Same as 752AUP3 except:
	± Has an AG type armature with an AF commutator and
	a standard AUP flash ring.
	± Has AG type commutator coils and poles with brazed
	instead of bolted connections.
	± Has air vents in the drive±end framehead
	± Has a frame specially machined for mounting the
	customer gearbox at the drive end.
	± Has a different drive±end grease arrangement.
	± Has rubber hardtop brushes instead of regular duplex
	brushes.
752AUT2	Same as AUT1 except:
	± Has an improved commutator±end bearing assembly and an
	ABS±certified armature shaft.

DATA

Max. Permissible Speed (rpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1800

Max. Permissible Vibration (Commutator End) (in.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.002

ªResistance at 25￿ C (Ohms):	Min.	Max.
Armature
Model 752UP	0.00912	0.00949
Model 752AUP	0.00912	0.00949
Model 752US	0.00749	0.00800
Model 752AUT	0.00749	0.00800
Exciting Field (With Cables)
Model 752UP	1.25	1.33
Model 752UP (After 3/88)	1.13	1.22
Model 752AUP	0.00512	0.00558
Model 752US	1.13	1.22
Model 752AUT	0.00486	0.00535
Commutating Field (With Cables)
Model 752UP	0.00508	0.00540
Model 752UP (After 3/88)	0.00439	0.00534
Model 752AUP	0.00439	0.00477
Model 752US	0.00432	0.00480
Model 752AUT	0.00432	0.00480

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