4.
With a set of feeler gauges, measure and record the gap between the bearing housing (134A) and
the bearing frame (228).
Figure 24: Feeler gauge method
5.
Back locking bolts (370C) off a couple of turns.
6.
Thread jack bolts (371A) in until they contact the bearing frame (228) evenly. Tighten the jack bolts
evenly (about one flat at a time), backing the bearing housing (134A) away from the bearing frame
until the rotating assembly contacts the seal chamber cover (184).
7.
Using the feeler gauges, measure and record the gap between the bearing housing (134A) and the
bearing frame (228).
8.
Average the two gap measurements and set the feeler gauge stack to that number.
9.
Loosen jack bolts (371A) several turns.
10.
Insert feeler gauge stack into gap between bearing housing (134A) and bearing frame (228). Tight-
en the locking bolts (370C) evenly until bearing housing contacts the feeler gauge stack.
11. Evenly tighten jack bolts (371A), then locking bolts (370C) while assuring that the feeler gauge does
not bind or become loose.
12. Tighten jam nuts (423B).
13. Check shaft for free turning.
14. Replace coupling guard.
NOTICE:
For pumps supplied with cartridge mechanical seals, be sure the set screws in the seal locking
ring have been tightened and the centering clips removed prior to startup. Failure to take these
steps could result in damage to the mechanical seal or shaft sleeve.
5.8 Mixer washdown
These mixers are designed to prevent liquid from entering the bearing frame. Care should be taken,
however, to avoid spraying a high pressure stream directly at the labyrinth frame seals.
5.8 Mixer washdown
3501 Installation, Operation, and Maintenance Instructions
35
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