Xylem G&L A-C 9100 Series, Инструкция по эксплуатации

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4. Impeller
5. Casing
6. Locking pin
Disassembly and reassembly
Adjustable rings are removed in the same manner as standard casing rings. They can be
separated for cleaning. Adjustable rings are installed in the pump with stationary and the
adjustable members assembled but not pinned.
1. Turn the adjustable member counterclockwise to provide maximum impeller
clearance and slide over shaft ends.
– With the rotating element in pump, the ring can be adjusted. Be sure that stationary
member has its flange flush against casing lower half.
2. Move rotating element toward outboard as far as bearings permit.
3. Screw outboard end adjustable ring toward impeller to obtain .005” to .006” axial
impeller clearance.
4. Drill through stationary ring hole into adjustable ring and insert locking pin.
5. Move rotating element toward coupling and set coupling end ring in the same
manner.
6.9.5 Install the oil ring
1. Place the oil ring in the bearing housing, directly under the pipe plug hole.
2. Run a wire through the pipe plug hole, around the oil ring and back through the pipe
plug hole once again.
3. Tie the wire to a metal washer (being a larger diameter than the hole) causing the oil
ring to become tight against the inside top of the bearing housing.
4. Assemble the bearing housing over the bearing.
5. Untie the wire. The oil ring will drop down onto the shaft.
6. Check the position of the oil ring through the pipe plug hole at the top of the bearing
housing.
The oil ring must be resting on the shaft for correct operation. A screwdriver can be
used to correct the oil ring position, if necessary.
6.9.6 Change the oil for oil lubricated bearings
11
2
3
4
5
1. Reservoir
2. Vent assembly
3. Bearing housing
4. Pipe plug
5. Lower casting
Figure 25: Oiler assembly
1. Remove the vent assembly from the top of the bearing housing.
2. Remove the pipe plug from the bottom of the bearing housing.
6 Maintenance
42 G&L Pumps Series A-C 9100 Base Mounted Centrifugal Pumps INSTRUCTION MANUAL