2.
If the unit is oil-lubricated, then remove the reservoir bottle and oil drain plugs from the bottom of the
bearing housings and drain the oil. Replace the plugs after draining.
3.
Remove the glands from the casing.
•
If the pump has packed stuffing boxes, then remove the nut from the stud, and then remove
the gland halves.
•
If the pump has mechanical seals, then slide the glands toward the bearings.
Make sure to protect the lapped stationary seal faces from damage.
4.
Remove the casing screws (426) and nuts (425), and then remove the dowel pins (469G).
5.
Loosen the top half by doing one of the following:
Group
Instructions
S
Insert a prying tool into the parting slot and pry the upper-half of the casing loose.
Repeat on the other side as required.
M, L, XL
Tighten the two jacking bolts (418) evenly until the seal is broken.
S group
M, L, XL groups
1
2
3
1.
469G
2.
426
3.
Parting slot
1
2
3
1.
426
2.
425
3.
418
6.
Remove the upper casing using a sling and hoist or a lift and lifting lugs.
WARNING:
Never attempt to lift the entire pump using lifting lugs.
7.
Remove and discard the gaskets.
8.
Remove the screws (372U) from the bearing saddle.
9.
Place the sling on the shaft (122), and then use a suitable hoist or lift to remove the rotating ele-
ment and place it on padded supports.
On pumps with mechanical seals, make sure that the casing rings (103) do not slip and damage the
seals.
10. Mark the coupling position on the shaft (122) and remove the coupling.
Use instructions from the coupling manufacturer in order to remove the coupling.
6.5.5 Remove the bearings
CAUTION:
Never use a hammer to drive the shaft through the bearings. Doing so can cause severe shaft
and bearing damage.
6.5 Disassembly
Model 3410 Installation, Operation, and Maintenance Manual
63
Содержание GOULDS PUMPS 3410
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