User guide

ManualsBrandsGoulds Pumps ManualsPumps3171 - IOM

Shaft surface check

Check the shaft surface for damage, especially in areas indicated by the arrows in the following figure.

Replace the shaft if it is damaged beyond reasonable repair.

Bearings inspection

Condition of bearings

Do not reuse bearings. The condition of the bearings provides useful information on operating conditions

in the bearing frame.

Checklist

Perform these checks when you inspect the bearings:

• Inspect the bearings for contamination and damage.

• Note any lubricant condition and residue.

• Inspect the ball bearings to see if they are loose, rough, or noisy when you rotate them.

• Investigate any bearing damage to determine the cause. If the cause is not normal wear, correct the

issue before you return the pump to service.

Bearing fits and tolerances

This table references the bearing fits and tolerances according to ISO 286 (ANSI/ABMA Standard 7) in

inches (millimeters).

Table 3: Steady bearing tolerances

Descript

ion

Bearing ID (pressed into

place)

Housing bore Running clearance (1/2

diametrical clearance)

S/ST M/MT L S/ST M/MT L S/ST M/MT L

Carbon 1.132–

1.134

(28.753–

28.804)

1.633–

1.635

(41.478–

41.529)

2.258–

2.260

(57.353–

57.404)

1.621–

1.623

(41.173–

41.224)

2.121–

2.123

(53.873–

53.924)

2.994–

2.996

(76.048–

76.098)

0.0055–

0.0035

(0.140–

0.089)

0.006–

0.004

(0.152–

0.102)

0.0065–

0.004

(0.165–

0.102)

Bronze 1.129–

1.131

(28.677–

28.727)

1.629–

1.631

41.377–

41.427

2.256–

2.258

(57.302–

57.353)

1.621–

1.623

(41.173–

41.224)

2.121–

2.123

(53.873–

53.924)

2.994–

2.996

(76.048–

76.098)

0.004–

0.002

(0.102–

1.051)

0.004–

0.002

(0.102–

1.051)

0.0055–

0.003

(0.140–

0.076)

Fluted

elastomer

1.126–

1.130

(28.600–

28.702)

1.627–

1.632

(41.326–

41.453)

2.253–

2.257

(57.226–

57.328)

1.621–

1.623

(41.173–

41.224)

2.121–

2.123

(53.873–

53.924)

2.994–

2.996

(76.048–

76.098)

0.0035–

0.0005

(0.089–

0.013)

0.0045–

0.001

(0.114–

0.025)

0.005–

0.004

(0.127–

0.102)

Rulon 1.132–

1.134

(28.753–

28.804)

1.633–

1.635

(41.478–

41.529)

2.258–

2.260

(57.353–

57.404)

- - - 0.0055–

0.0035

(0.140–

0.089)

0.006–

0.004

(0.152–

0.102)

0.0065–

0.004

(0.165–

0.102)

Casing

collar

1.183–

1.190

(30.048–

30.226)

1.678–

1.685

(42.621–

42.799)

2.299–

2.306

(58.395–

58.472)

1.811–

1.816

(45.999–

46.126)

2.243–

2.245

(56.972–

57.023)

3.243–

3.245

(82.372–

82.423)

0.0335–

0.029

(0.851–

0.737)

0.031–

0.0265

(0.787–

0.673)

0.029–

0.0245

(0.737–

0.622)

Maintenance (Continued)

44 Model 3171 Installation, Operation, and Maintenance Manual