Goulds Pumps 3640 - IOM - Manual (Page 80)

Maintenance
Assemble the radial end (ball bearing pumps)
1. Assemble the inboard labyrinth seal (333A) into the inboard radial-end cover (160):
a) Clean the end cover with a solvent.
b) Fit the labyrinth seal (333A) into the bore of the cover (160).
c) Tap the seal in with a hammer.
NOTICE:
Make sure that the expulsion port is at the 6 o'clock position and is properly seated.
2. Assemble the inboard end cover (160) and the inboard bearing end-cover gasket (360A)
onto the shaft.
3. Assemble the radial bearing (168) onto the shaft (122).
The bearings are interference fit.
a) Preheat the bearings with an electronic induction heater.
The induction heater also demagnetizes the bearings.
CAUTION:
Wear insulated gloves when you use a bearing heater. Bearings get hot and can cause physical injury.
NOTICE:
Do not use a torch and do not force.
b) Coat the internal surface of the bearings with the lubricant that is to be used in service.
c) Assemble the radial-end bearing (168) onto the shaft (122).
M-group pumps have a bearing spacer (217).
78 Model 3640 Installation, Operation, and Maintenance Manual