5.10 Feeler gauge method (CV)
1.
Loosen the motor locking bolts (370B).
2.
Begin tightening the jacking bolts (370D) evenly, pushing the motor (338) away from the pump until
the impeller contacts the cover. Turn shaft to ensure contact is made.
3.
Use a feeler gauge to measure the gap between the motor (338) face and the frame adapter (Fig.
28).
Figure 28:
4.
Subtract from this measurement the impeller clearance required from
.
5.
Select four (4) sets of shim(s) (329B) equal to this thickness.
NOTICE:
In some cases, finding an exact match may not be possible. In this case, select the next clos-
est size greater.
6.
Loosen the jacking bolts (370D). Tighten motor locking bolts (370B) securely.
7.
Check shaft for free turning.
Table 4: Impeller Clearances
Cold Temoerature Clearances for Various Service Temoeratures inches Imm)
Service Temoerature
3196
LF3196
CV3196
*1
3796
STX
MTX/LTX
XLTX/X17 STXMTX/LT
X
STX
MTX/LTX
XLTX
STXMTX/LT
X
inches mm inches mm
in-
ches
mm
in-
ches
mm
In-
ches
mm
in-
ches
mm
-20 to 150°F (-29 to
66°C)
0.005 0.13 0.008 0.20 0.015 0.38 0.015 0.38
0.06
1.52 0.015 0.38
Up to 175°F (79°C)
0.005 0.13 0.008 0.20 0.015 0.38 0.015 0.38
0.06
1.52 0.015 0.38
Up to 200°F (93°C)
0.005 0.13 0.008 0.20 0.015 0.38 0.015 0.38
0.06
1.52 0.015 0.38
Up to 250°F (121°C) 0.006 0.16 0.009 0.23 0.016 0.41 0.016 0.41
0.06
1.52 0.016 0.41
*1
5.10 Feeler gauge method (CV)
36
3196CC Installation, Operation and Maintenance Instructions