Table 4: Impeller locating table
Size
A
B
Size
A
B
1 ¼ x 1 ½-5
1/16
2 ½ x 3-9
0
0
1 ¼ x 1 ½-7
1/16
2 ½ x 3-13
1/16
1 ¼ x 1 ½-8
3/16
3 x 4-7
1/4
1 ½ x 2-5
3/16
3 x 4-13
0
0
2 x 2-7
0
0
4 x 5-7
1/4
2 ½ x 2 ½-6
0
0
4 x 6-11H
1/4
3 x 3-5
1/8
4 x 6-13
1/8
4 x 4-7
1/4
5 x 5-7
1/8
1 ½ x 2-9
3/16
6 x 6-9
3/16
2 x 2 ½-9
3/32
8 x 8-11
1/8
2 x 3-7
0
0
4 x 6-13L
7/16
6 x 8-13
1/8
Figure 13: Impeller locating
23. Using a soft metal hammer, tap evenly on center of impeller until shaft threads protrude beyond
impeller. Shaft must be held to prevent axial movement during this operation.
24. Push impeller on remaining distance with impeller nut (304) and washer (199).
25. Refer to
Table 4: Impeller locating table on page 35
. Adjust bolts (370D) and (370C) evenly until
distances between impeller and casing correspond to that shown in table.
26. Tighten evenly bolts (370C) and jam nuts on bolts (370D).
27. Replace suction cover (182), gasket (351) and nuts on studs (356).
28. To replace pump half coupling on shaft, screw a ½" diameter std approximately 1 ¼" longer than
the length of the coupling hub on Group S pumps (a 5/8" diameter stud approximately 1 ½" lon-
ger than the length of the coupling hub on Group M and L pumps) into the end of the shaft. Insert
the coupling key in shaft. Put oil or white lead on the shaft and in the coupling bore. Place the
complete pump half coupling in position over the stud and align the key with the keyway. Place
washers over the stud and against the coupling hub and pull coupling half on with a nut placed
on the stud. Locate the coupling half in the same position on the shaft as it was before disman-
tling.
29. Place pump on bedplate, insert hold-down bolts and align unit as directed in
.
30. Insert grease through Alemite fitting as directed in
.
31. Connect coupling.
32. Connect piping as directed in
2.7 Connection of piping on page 16
33. Follow directions in
Starting Pump for initial operating conditions and for starting.
7.7 Replacing shaft or bearings
Model 3755 Installation, Operation, and Maintenance Manual
35
Содержание Goulds Pumps 3755
Страница 1: ...Installation Operation and Maintenance Manual Model 3755 ...
Страница 2: ......
