CAUTION:
Wear insulated gloves when you handle rings. Rings will be hot and can cause physical injury.
c)
Locate, drill, and tap three new setscrew holes equally spaced between the original holes in
each new ring and ring seat area.
d) Install set screws (320) and upset the threads.
3.
Check the throttle bushing (129), the center bushing (155), the diaphragm (146), the case ring (164,
164A, 164B), and the stage ring (144) runout/distortion by measuring the bore at three locations
with inside micrometers or vernier calipers.
Correct any distortion in excess of 0.076 mm | 0.003 in. by machining prior to trimming new impeller
wear rings, if supplied.
The arrows point to wear surfaces on these parts.
129
155
146
164, 164A, 164B, 144
Figure 69: Bushing inspection critical locations
Part number
Part name
129
Throttle bushing
155
Center bushing
146
Diaphragm
164, 164A, 164B, 144 Case and stage ring
4.
Confirm the bore of the throttle bushing (129), the center bushing (155), the diaphragm (146), the
casing ring (164, 164A, 164B), and the stage ring (144).
5.
Turn the impeller wear rings (202, 202A, 202B, 203) to size after mounting on the impeller
(101-101M).
CAUTION:
The impeller and wear-ring clearance setting procedures must be followed. Improperly set-
ting the clearance or not following any of the proper procedures can result in sparks, unexpect-
ed heat generation, and equipment damage.
All replacement impeller wear rings are supplied 0.508 mm to 0.762 mm | 0.020 in. to 0.030 in.
oversize. See Minimum running clearances for final running clearances. Machine the impeller rings
accordingly.
When the impeller assembly is supplied as a spare part (impeller with wear rings), the wear rings
are machined to the required dimension.
6.5.5 Minimum running clearances
Impeller wear rings
Replace wear rings when the diametrical clearance exceeds 1.5X the values shown in this table or when
the hydraulic performance has decreased to unacceptable levels:
6.5 Preassembly inspections
Model 3600 i-FRAME API610 11th Edition / ISO 13709 2nd Edition to current API BB3 Multi-Stage, Axially Split Installa-
tion, Operation, and Maintenance Manual
95
Содержание GOULDS PUMPS 3600 i-FRAME
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