ITT Goulds Pumps API 3171, Инструкция по установке, эксплуатации и обслуживанию

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Maintenance
Model API 3171 Installation, Operation, and Maintenance Manual 49
• 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.
• Inspect bearing shell (134) bore according to the dimensions in the Bearing fits and
tolerances - Thrust bearing fits table. Replace if dimensions exceed these values.
• Replace the lower grease seal (133) at every overhaul.
• Visually inspect for cracks and pits. Pay particular attention to the snap ring groove.
Bearing fits and tolerances
Table 6: Steady bearing tolerances
This table references the bearing fits and tolerances according to ISO 286 (ANSI/ABMA Standard 7) in
millimeters | inches.
Descripti
on 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 28.753–2
8.804 |
1.132–1.
134 41.478–4
1.529 |
1.633–1.
635 57.353–5
7.404 |
2.258–2.
260 41.173–4
1.224 |
1.621–1.
623 53.873–5
3.924 |
2.121–2.
123 76.048–7
6.098 |
2.994–2.
996 0.140–0.
089 |
0.0055–0
.0035 0.152–0.
102 |
0.006–0.
004 0.165–0.
102 |
0.0065–0
.004
Bronze 28.677–2
8.727 |
1.129–1.
131 41.377–4
1.427 |
1.629–1.
631 57.302–5
7.353 |
2.256–2.
258 41.173–4
1.224 |
1.621–1.
623 53.873–5
3.924 |
2.121–2.
123 76.048–7
6.098 |
2.994–2.
996 0.102–1.
051 |
0.004–0.
002 0.102–1.
051 |
0.004–0.
002 0.140–0.
076 |
0.0055–0
.003
Fluted
elasto-
mer 28.600–2
8.702 |
1.126–1.
130 41.326–4
1.453 |
1.627–1.
632 57.226–5
7.328 |
2.253–2.
257 41.173–4
1.224 |
1.621–1.
623 53.873–5
3.924 |
2.121–2.
123 76.048–7
6.098 |
2.994–2.
996 0.089–0.
013 |
0.0035–0
.0005 0.114–0.
025 |
0.0045–0
.001 0.127–0.
102 |
0.005–0.
004
Rulon 28.753–2
8.804 |
1.132–1.
134 41.478–4
1.529 |
1.633–1.
635 57.353–5
7.404 |
2.258–2.
260 - - - 0.140–0.
089 |
0.0055–0
.0035 0.152–0.
102 |
0.006–0.
004 0.165–0.
102 |
0.0065–0
.004
Casing
collar 30.048–3
0.226 |
1.183–1.
190 42.621–4
2.799 |
1.678–1.
685 58.395–5
8.472 |
2.299–2.
306 45.999–4
6.126 |
1.811–1.
816 56.972–5
7.023 |
2.243–2.
245 82.372–8
2.423 |
3.243–3.
245 0.851–0.
737 |
0.0335–0
.029 0.787–0.
673 |
0.031–0.
0265 0.737–0.
622 |
0.029–0.
0245
Table 7: Thrust bearing fits
Group Shaft OD Shell ID
S/ST 25.0139/25.0038) |
0.9848/0.9844 62.0166/61.9989 |
2.4416/2.4409
M/MT 40.0177/40.0025 |
1.5755/1.5749 90.0227/89.9998 |
3.5442/3.5433
L 55.0164/55.0037 |
2.1660/2.1655 120.0226/119.9896 |
4.7253/4.7240
Shaft runout tolerances
The following shaft runout tolerances apply to all size groups:
• Coupling end: 0.051 mm | 0.002 in.
• Shaft body: 0.0005 in./ft.
• Impeller end: 0.127 mm | 0.005 in.
Reassembly
Assemble the column and support plate
1. If you use the optional stuffing box, then attach the stuffing box (221) to support plate (189)
with bolts (370L).
2. Attach the motor support (240):