ITT Goulds Pumps V 3298, Installation, Operation And Maintenance Instructions

Page: 64 / 148

INSPECTIONS
Model 3298 parts must be inspected to the following criteria
before reassembly to ensure pump will run properly. Any
part not meeting required criteria should be replaced.
CASING (100)
1. Casing (100) should be inspected for excessive wear,
abrasive damage, cut or a loose liner.
VOLUTE INSERT (SP 3298 Only)
1. Volute insert (100U) should be inspected for excessive
wear, abrasive damage or cut surfaces.
SPIDER (101A)
1. Spider Bearing should be inspected for cracks, chips,
or scoring.
IMPELLER (101)
1. Inspect leading and trailing edges of vanes for
erosion damage.
2. Inspect impeller for cracks and grooves in excess of
.030 in. (.75 mm).
3. Check for blocked passages.
BACKPLATE (SP 3298 Only)
1. Backplate (444) should be inspected for excessive wear,
abrasive damage, cut or a loose liner.
INSPECTION LOCATIONS:
* For M and L Group Sizes Only -
2 x 3-8, 3 x 4-7, 1 x 2-10, 4 x 6-10
BACK WEAR RING (203)
1. Inspect back wear ring per following table:
Table 9
Diametrical Back Wear Ring Clearances
Size
New
Clearance
in. (mm)
Replace
at
in. (mm)
Wear Ring to
Containment
Shell
Location A
Ref. Fig. 101 /
102
1 x 1½-5
1½ x 2-6
1 x 1 1
2
-6
1 x 1½-7
1 x 1½-8
No Wear Ring No Wear Ring
2 x 3-6
1½ x 3-8
1 x 1 1
2
-8
3 x 4-7
2 x 3-8
0.060/0.066
(1.52/1.68)
0.090
(2.3)
1 x 2-10
1½ x 3-10
2 x 3-10
3 x 4-10H
3 x 4-10G
0.060/0.070
(1.52/1.78)
0.094
(2.4)
4 x 6-10
NOTE: S group sizes 1 x 1
1
2
-6, 1 x 1
1
2
-8, 2 x 3-6 do
not have wear ring (203).
64
3298 Family Rev. 4/07
Fig. 102
Fig. 101