Shaft Seal Inspection
(continued)
3. Turn the front plate over so that the seal is visable. Wipe the
elastomeric seal lips with a clean cloth to remove any grease and foreign
material.
4. Inspect the elastomeric seal lips for tears or cuts or missing material. If
any of the above mentioned conditions exist, replace the seal assembly
using the 07575-01 replacement seal kit.
5. Wipe the exposed part of the drive shaft with a clean cloth. Wipe from
the drive outward, to remove all grease and foreign matter.
6. Inspect the shaft surface, in the area touched by the seal. Look for a
rough finish, or grooves parallel to the shaft length. If the shaft end is
worn or damaged as described above, replace the gear and shaft with
the 07575-02 kit. A polished groove, concentric to the outside of the
shaft, is not a defect, as long as the groove is no more than 0.002
inches deep.
7. Prior to re-assembly, re-lubricate the shaft and the seal with the food-
grade lubricant provided with the unit.
CAUTION: Do not contaminate the lubricant in the container, on
the shaft or on the seal with foreign material.
Failure to observe this precaution may result in damage to the
seal and premature failure of the seal.
8. Slide the front plate assembly back over the shaft and onto the locating
pins, in the orientation desired. (4 configurations, each 90 degrees of
rotation apart, are possible.) Reinstall the four (4) screws, removed in
step 2 (see Figure 4-3).
CAUTION: No foreign matter should be allowed under the gasket
on the back of the front plate or under the heads of the screws.
Failure to observe this precaution may result in leakage during
washdown of the drive.
Cleaning
DANGER:
Remove power from the pump before any cleaning
operation is started.
Keep the drive enclosure clean with mild detergents. Do not immerse or
use excessive fluid when cleaning.
Section 4
Maintenance
4-4
L/S Precision Variable-Speed Drives Operating Manual
Masterflex
