Goulds Pumps 3196 i-FRAME - IOM - Manual (Page 123)

Maintenance
b) Apply a few sharp raps to tighten the impeller (101).
3. Loosen the clamp bolts (370C) and the jack bolts (370D).
4. Measure the gap between the impeller (101) and the seal chamber and stuffing-box cover
(184) with a feeler gauge.
5. When you reach a 0.030 in. (0.76 mm) clearance, tighten the clamp bolts (370C), jack bolts
(370D), and lock nuts (423).
This approximates the impeller position when it is set to 0.015 in. (0.38 mm) from the
casing. Perform a final impeller adjustment after you install the impeller into the casing.
6. Check the impeller (101) runout.
Model 3196 i-FRAME Installation, Operation, and Maintenance Manual 121