Goulds Pumps 3620 - IOM - Manual (Page 71)

Maintenance
Pump size Radial bearing Thrust bearing Bearing Shaft turn
group housing bore
M, MX 6312 7312/BECBM 5.1181 2.3628
5.1191 2.3623
L, LX 6313 7313/BECBM 5.5118 2.5597
5.5128 2.5592
XL 6318 7318/BECBM 7.4809 3.5440
7.4820 3.5434
X, XXL, XLX 6320 7320/BECBM 8.4652 3.9377
8.4663 3.9371
XX 6224 7320/BECBM 8.4652 Thrust Radial
8.4663 3.9377 4.7255
3.9371 7.7249
Bearing housings
Perform these checks when you inspect the bearing housings:
• Check that the bearing housings are very clean, with no burrs.
• Remove all loose and foreign material.
• Check the bearing housing bores against the values in the Ball bearing fits table.
• Repair or replace housings as necessary.
Replace the wear parts
Replace the throat bushing
The throat bushing (125) is held in place by a press fit and tack welds.
1. Remove the bushing:
a) Grind out the tack weld.
b) Press the bushing (125) into the seal chamber of the case (100) and head (184) bore.
2. Install the bushing:
a) Thoroughly clean the bushing fit in the seal chamber of the case (100) and head (184).
Model 3620, API Type BB2 Single Stage / ISO 13709 1st/2nd Ed. / API 610 8th-11th Ed. Installation, Operation, and 69
Maintenance Manual