Figure 57:
NOTICE:
The face of the CV 3196 CC impeller is not machined. Checking the face runout on the CV
3196 CC impeller is not required.
Pumps with Mechanical Seals
11. For pumps with non-cartridge mechanical seals, it is necessary to temporarily install spacer shims
(329B) before scribing shaft / sleeve.
12. To do this, measure the gap between the face of the seal chamber (184) and the back of the impel-
ler pumpout vanes (101) (Fig. 57).
Figure 58:
13. Take the measurement just attained and subtract
14. 0.030 in. (0.76mm) from it. Select shim(s) equal to or next greater to this number.
15. The goal is to have a gap of "as close to" 0.030 in. (0.76 mm) as possible between the seal cham-
ber and back of the impeller pumpout vanes.
16. Blue the shaft sleeve (126) or shaft (122) if no sleeve is used. Scribe a mark at gland gasket face of
seal chamber/stuffing box cover (184). This will be the datum for installation of mechanical seal
(Fig. 58).
6.9 Reassembly
3196CC Installation, Operation and Maintenance Instructions
55