Pre-Assembly Inspections; Shaft And Sleeve Inspection - Xylem e-1532 Series Instruction Manual

ØA
Figure 4: 4AD impeller trim — 0.125 in. (3.17 mm) increments
A
Hydraulic diameter, nominal, as
shown on selection curves
From maximum diameter 7 in.
(177.8 mm) to 6.125 in. (155.6 mm)
6, 5.875, 5.75, 5.625 in. (162.4 to
142.9 mm)
5.5, 5.375, 5.25, 5.125, minimum 5
in. (139.7 to 127.0 mm)

6.3 Pre-assembly inspections

Guidelines
Before you assemble the pump parts, make sure you follow these guidelines:
• Inspect the pump parts according to the information in these pre-assembly topics
before you reassemble your pump. Replace any part that does not meet the required
criteria.
• Make sure that the parts are clean. Clean the pump parts in solvent in order to remove
oil, grease, and dirt.
NOTICE:
Protect machined surfaces while you clean the parts. Failure to do so may result in
equipment damage.
Areas to inspect
Inspect the pump for leaking seals, worn gaskets, and loose or damaged components.
Replace or repair these parts as required.

6.3.1 Shaft and sleeve inspection

Inspection criteria
Inspect the shaft and sleeve according to this criteria:
• Thoroughly clean the shaft and sleeve.
• Thoroughly clean the coverplate seal cavity.
• Inspect the surface for damage such as pitting, corrosion, nicks, and scratches.
Replace these parts if they are damaged.
Series e-1531 and e-1532 INSTRUCTION MANUAL
C
ØB
B
Diameter at impeller inlet side
shroud
Use diameter from selection curves
B = A plus 0.250 in. (6.35 mm)
B = A plus 0.375 in. (9.53 mm)
6 Maintenance
C
Trim angle
0 degrees, no angle
8 degrees
8 degrees
23