Group
Instructions
5.
Remove and discard the sleeve-to-impeller gasket (428) located on the
end of the sleeve nearest the impeller.
6.5.8 Remove the impeller
CAUTION:
Do not damage the impeller hub surface that is sealed by the sleeve gasket.
1.
Do one of the following:
Group
Instructions
S
1.
Use snap ring pliers to remove the retaining rings (361H).
2.
Drive or press the impeller (101) off the shaft.
3.
Remove the key (178).
See the Retaining ring configuration in the Parts Listings and Cross-sec-
tional Drawings chapter for an illustration of the S group retaining ring
configuration.
M, L, XL
1.
Draw a mark on the shaft to indicate the location of the impeller hub.
2.
Drive or press the impeller (101) off the shaft.
3.
Remove the key (178).
6.6 Preassembly inspections
WARNING:
•
Risk of death or serious injury. Leaking fluid can cause fire and/or burns. Inspect and en-
sure gasket sealing surfaces are not damaged and repair or replace as necessary.
•
Risk of death or serious injury. Leaking fluid can cause fire and/or burns. Replace all gas-
kets and O-rings at each overhaul or disassembly.
•
•
Use fasteners of the proper size and material only.
•
Replace all corroded fasteners.
•
Ensure that all fasteners are properly tightened and that there are no missing fas-
teners.
O-rings
Inspect the O-rings (497) and replace them if damaged.
Wear rings
When hydraulic performance has substantially reduced, replace the casing wear rings.
The original radial clearance between the impeller and the casing wear rings is shown in
Impeller wear rings
If the unit has impeller wear rings (142) and it is necessary to replace the rings, then proceed as speci-
fied in
6.6.1 Replace impeller wear rings on page 67
.
6.6 Preassembly inspections
Model 3410 Installation, Operation, and Maintenance Manual
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