Goulds Pumps 7200CB - IOM User Manual

Page 100

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Maintenance

NOTICE:
Make sure that the expulsion port is at the 6 o'clock position and is properly seated.

3. Install the inboard end cover (119A) and the inboard bearing end cover gasket (360A) onto

the shaft. Apply an o-ring lubricant to the inside diameter of the labyrinth seal o-ring. Apply
high vacuum grease to gasket.

4. Install the radial bearing (168) onto the shaft (122).

The bearing is interference fit.
a) Heat the bearings to 250° F (120° C) 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) Install the bearing (168) onto the shaft (122).

5. Install the oil-ring sleeve (324) and tighten the setscrew (388L).

6. Install the bearing housing (134) over the bearing. Apply a lubricant that is to be used in

service to the outside diameter of bearing. Finger-tighten the nuts (357P) on the stude
(375). Insert dowel pins (469J) then tighten nuts (357P).
The bearing housing is doweled to the suction cover (182) during the original build to
assure the correct running position of the shaft.
The connection point of the bearing housing (134) to the suction cover (182) is referred to
as the saddle.

NOTICE:
The bearing housing flange must fit metal-to-metal (no gap) to the bearing saddle flange.

7. Tighten the inboard end cover bolts (371C).
8. Install the oil ring (114).
9. Install the outboard labyrinth seal (332A) into the outboard radial-end cover (119A):

98

Model 7200CB, API Type BB5 Barrel Multistage / ISO 13709 2nd Edition / API 610 11th Edition Installation, Operation, and

Maintenance Manual

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