Technical data

P,--.

,,-

!‘.

6. Loosen clamp bolts (37OC), and jacking bolts

(3700).

Measure gap between impeller (101) and

seal chamber/stuffing box cover (184) with a

feeler gauge. When 0.030 in. clearance is

reached, tighten clamp bolts (37OC), jacking bolts

(370D), and locking nuts (423) (Fig. 112)

NOTE: This approximates the impeller position

when

set at

0.015 in. (25 mm) from casing.

Final impeller adjustment must be made after

installation into casing. I

Fig. 112

7. Check impeller (101) rut-rout. Check vane tip to vane

tip. If total indicator reading is greater than

0.005 in. (.13 mm), determine cause and correct

before proceeding (Fig. 113).

8. 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. 114).

-29

Fig. 114

9. Remove the impeller (1 Ol), and shaft sleeve (126)

if used.

. .-._ -_.