Goulds Pumps 3410 - IOM - Manual (Page 47)

INSPECTION
O-RINGS
Inspect O-rings (497) and replace if damaged (M, L, XL
Groups only).
WEAR RINGS
The original radial clearance between the impeller and the
casing wear rings is shown in Fig. 37 and Table 5. When
hydraulic performance is reduced substantially, the casing
rings should be replaced.
Table 5
RADIAL CLEARANCE
Group Pump
Iron &
Bronze
Steel
S
2x3-11
3x4-10
4x6-9
4x6-11
4x6-11H
4x6-13
4x6-13H
.005 - .007"
(.013 - .018 mm)
.009 - .011"
(.022 - .028 mm)
M
4X6-15
6x8-11
6x8-14
6x8-14H
6x8-17
8x10-11
8x10-12
8x10-14
.005 - .007"
(.013 - .018 mm)
.009 - .011"
(.022 - .028 mm)
L
6X8-22
6x10-17
8x10-17
.005 - .007"
(.013 - .018 mm)
.009 - .011"
(.022 - .028 mm)
8x10-17H
.0055 - .0075"
(.014 - .019 mm)
.010 - .012"
(.025 - .030 mm)
8x10-21
.005 - .007"
(.013 - .018 mm)
.009 - .011"
(.022 - .028 mm)
10x12-12
.0055 - .0075"
(.014 - .019 mm)
.010 - .012"
(.025 - .030 mm)
10x12-14
.005 - .007"
(.013 - .018 mm)
.010 - .012"
(.025 - .030 mm)
10x12-17
.0065 - .0085"
(.017 - .022) mm)
.011 - .013"
(.028 - .033 mm)
XL
10x12-12H
10x12-15
.0055 - .0075"
(.014 - .019 mm)
.010 - .012"
(.025 - .030 mm)
12x14-15
.0065 - .0085"
(.017 - .022) mm)
.011 - .013"
(.028 - .033 mm)
3410 IOM 1/2010
45
6
Fig. 37