Flowserve ESP2 Manual do Utilizador descarregar pdf (Página 40)

ESP2 USER INSTRUCTIONS ENGLISH PCN-(71569292) 4-12

Page 40 of 64

FIGURE 6.4 Shaft, bearing, and bearing holder tolerances

Part

Description

Max. Inside Diameter

Min. Outside Diameter

2100

Group 1 Shaft

28.42 mm (1.119 in.)

Group 2 Shaft

37.95 mm (1.494 in.)

Group 3 Shaft

47.47 mm (1.869 in.)

3020

Group 1 Line Shaft Bearings

Solid Carbon

28.994 mm (1.1415 in.)

Metal-backed Carbon

28.689 mm (1.1295 in.)

Bronze

28.766 mm (1.1325 in.)

Rubber

28.766 mm (1.1325 in.)

Teflon

28.956 mm (1.1400 in.)

Iron

28.651 mm (1.1280 in.)

Group 2 Line Shaft Bearings

Solid Carbon

38.557 mm (1.5180 in.)

Metal-backed Carbon

38.329 mm (1.5090 in.)

Bronze

38.329 mm (1.5090 in.)

Rubber

38.367 mm (1.5105 in.)

Teflon

38.481 mm (1.5150 in.)

Iron

38.329 mm (1.5090 in.)

Group 3 Line Shaft Bearings

Solid Carbon

48.082 mm (1.8930 in.)

Metal-backed Carbon

47.854 mm (1.8840 in.)

Bronze

47.854 mm (1.8840 in.)

Rubber

47.892 mm (1.8855 in.)

Teflon

48.006 mm (1.8900 in.)

Iron

47.854 mm (1.8840 in.)

3250

1340.1

Group 1 Bearing Holder/Adapter

41.288 mm (1.6255 in.)

Group 2 Bearing Holder/Adapter

50.813 mm (2.0005 in.)

Group 3 Bearing Holder/Adapter

66.688 mm (2.6255 in.)

6.8 Examination of parts

6.8.1 Cleaning/inspection

All parts should now be thoroughly cleaned and

inspected. New bearings, O-rings, gaskets, and lip

seals must be used. Any parts that show wear or

corrosion should be replaced with new genuine

Flowserve parts.

It is important that only non-flammable,

non-contaminated cleaning fluids are used. These

fluids must comply with plant safety and environmental

guidelines.

a) Inspect impeller (2200) for excessive wear and

etching due to corrosion. Large nicks and deep

pits will unbalance the impeller and cause

vibration and wear in other parts of the pump.

Be sure the o-ring (4610) sealing surface and

impeller threads are clean.

b) Check pump shaft (2100) for straightness.

c) Inspect the surface of the shaft in the bearing

(3020.1-.2) areas to make sure it is smooth. It

must be free of grooves, scratches, corrosion or

wear.

d) Check ends of shaft for burrs. Make sure that

shaft threads are clean.

e) Inspect the casing (1100) thoroughly, removing

all burrs and foreign matter. Check hydraulic

passages for cleanliness.

f) Check all other parts for burrs, wear, damage or

corrosion.

g) Use a dial indicator to check the straightness of

the shaft extension of the driver and check

indicator readings against the values given in

Figure 6-5. Should any of these limits be

exceeded, check with the driver manufacturer

for recommended repair or replacement parts.

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