4131128A
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11
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Pump
B 2-15
E 2000 Nordson Corporation
All rights reserved
41-3000
Issued 11/00
B2EN-02-[3-PUMP]-5
Follow this procedure to check the bearings and the seal and to replace
them if necessary. The pump assembly has two bearings, one in the
upper bearing mount and one in the pump mount. The seal is housed in
the pump mount.
1. See Figure B 2-4. Remove the upper bearing mount (1).
2. Remove the drive shaft (5) from the pump mount (11).
3. Remove both bearings (2,8), the retaining ring (9), and the seal (10).
4. Inspect the bearings and the seal for damage and replace any
components as needed.
5. If you are installing a new seal, lightly lubricate the seal to protect it
during reassembly.
6. Press the seal into the pump mount. The seal’s open face should be
towards the pump. Secure it with the retaining ring.
7. Pack both bearings with high-temperature grease and install them in
the upper bearing mount and pump mount.
NOTE: The bearings in the replacement kit are already pre-packed
with high-temperature grease.
8. Position the drive shaft coupling (7) and key (6) on the drive shaft.
9. Install the drive shaft. Take care not to mar, scratch, or cut the seal
during installation.
10. Reattach the upper bearing mount to the pump mount with the
hex-head screws and washers you removed earlier.
Fig. B 2-4 Pump Bearing and Seal
Components
1. Upper bearing mount
2. Upper bearing
3. Key
4. Sprocket
5. Drive shaft
6. Key
7. Coupling
8. Lower bearing
9. Retaining ring
10. Seal
11. Pump mount
Note: Some items shown for reference
only.
Checking the Bearing and the
Seal
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