Technical data

FEELER GAUGE METHOD

Remove coupling guard. Refer to coupling guard

instructions in Appendix II.

2. Loosen jam nuts (4236) on jack bolts (371A) and

back bolts out about two turns (Fig. 20).

Tighten locking bolts (370C) evenly, drawing

bearing housing (134A) towards frame (228) until

impeller contacts the casing. Turn shaft to

ensure contact is made.

With a feeler gauge set the gap between the three

locking bolts (370C) and bearing housing (134A)

per impeller clearances in Table 3.

5. Evenly back out bearing housing (134A) using the

three jack bolts (371 A) until it contacts the locking

bolts (370C). Evenly tighten jam nuts (4238).

6. Check shaft for free turning.

7. Replace coupling guard. -

418

Feeler Gauge

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