NOTICE:
Do not remove bearings from the shaft unless you need to replace them.
1.
Remove the screws (371C) and slide the housings (134) off the bearings (168 and 112) and the
shaft (122).
Make sure not to damage the oil seal (332).
2.
Using snap ring pliers in order to remove the retaining ring (361) from the thrust end of the shaft.
3.
Remove the bearings (168 and 112) with a bearing puller.
Group
Instructions
S
Use a two-jaw puller on the end cover (109). Use caution not to damage the end
cover.
M, X, XL
Use a split-jaw puller on the back of the bearing (168 and 112).
Make sure not to damage the bearings. If the bearing needs to be reinstalled, then protect it from
contamination by wrapping it in clean cloth or paper.
4.
For L and XL groups only, remove the radial bearing spacer (443T).
5.
Remove the gaskets (360), bearing end covers (109), and deflectors (123).
6.
Remove the outboard seal (332) from the coupling-end bearing housing, and remove the inboard
seal (333) from each end cover (109).
You can discard the old bearings and gasket.
6.5.6 Remove the seals
1.
Do one of the following:
•
If the pump has mechanical seals, then slide the glands with the stationary seat in place off
the shaft. Make sure not to damage the lapped seal faces.
•
If the pump has packed stuffing boxes, then remove the nuts (355), gland (107), packing
(106), lantern rings (105), and stuffing box bushings (125).
2.
Slide the casing wear ring (103) off the impeller and shaft.
3.
Remove the rotating portion of both seals.
6.5.7 Remove the shaft sleeve
NOTICE:
Do not remove the optional shaft sleeve on S group pumps unless you intend to replace it.
1.
Remove the shaft sleeve as follows:
When you remove the sleeve (126), use a very fine emery cloth to smooth the shaft in order to pre-
vent binding.
Group
Instructions
S
1.
Loosen the sleeve (126) with low heat, approximately 350–400°F | 177–
222°C. Use a temperature stick or other measuring device to monitor the
temperature.
2.
Apply torque with a strap wrench.
3.
Slide the sleeve carefully off the shaft.
M, L, XL
1.
Loosen the setscrew (222B) on the sleeve nut (124).
2.
Use a spanner or strap wrench to unscrew the sleeve nut (124).
3.
Remove and discard the O-rings (497).
4.
Carefully slide the sleeve (126) off the shaft.
6.5 Disassembly
64
Model 3410 Installation, Operation, and Maintenance Manual
Содержание GOULDS PUMPS 3410
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