Goulds Pumps 3996 - IOM - Manual (Page 42)

e. Compress rotary portion of seal to correct
dimension as shown on seal manufacturer’s
drawing and tighten set screws. f. Remove visegrip and refer to Step 9 for further
instructions.
ENGINEERING DATA CONSTRUCTION DETAILS
Power End
38
3996 IOM 9/2010
POWER END MODEL 3996 ST MODEL 3996 MT
Shaft
Diameters
At Impeller 3/4" (19) 1" (25)
In Stuffing Box (Less Sleeve) 1 3/8" (35) 1 3/4" (44)
In Stuffing Box (With Sleeve) 1 1/8" (29) 1 1/1" (38)
Sleeve Outside Diameter 1 3/8" (35) 1 3/4" (44)
Between Bearings 1 1/2" (38) 2 1/8" (54)
At Coupling 7/8" (22) 1 1/8" (29)
Bearings
Radial 207-SF 309-SF
Coupling End (Double Row) 5306-KF 5309F
Bearing Span 4 1/8" (105) 6 3/4" (171)
Shaft Overhang 6 1/8" (156) 8 3/8" (213)
Stuffing
Box
Bore 2" (51) 2 1/2" (64)
Depth 2 1/8" (54) 2 5/8" (67)
Packing Size 5/16" x 5/16" (8 x 8) 3/8" x 3/8" (10 x 10)
No. of Rings 5 5
Width of Lantern Ring 7/16" (11) 5/8" (16)
Distance - End of Box to
Nearest Obstruction
2 3/16" (55) 3" (76)