Service
6-20 P/N M/97-520
3. While holding the drive endcap in position, remove the last screw
and carefully remove the drive endcap from the measuring
chamber as shown in Figure 6-1.
4. Note the position of the drive endcap to the measuring chamber.
The drive endcap must be installed in the same position during
assembly.
CAUTION
If the rotor is coated with Teflon (blue/green color), make sure the solvent
being used does not harm Teflon. Do not scrape surfaces coated with
Teflon.
5. Place the rotor end of the drive endcap assembly on the work
surface.
6. Using a hex wrench, loosen the set screw and remove the drive
shaft coupling from the drive shaft as shown in Figure 6-12.
7. Remove the snap ring from the drive shaft.
8. Remove the bearing support mounting screws and remove it.
9. Inspect the bearings in the bearing support for damage. If the
bearings are seized or damaged, refer to Appendix A and contact
Brookfield Engineering Laboratories for replacement bearings.
Once the replacement bearings have been received, refer to
Bearing Replacement. If the bearings are not damaged, proceed
with step 11.
10. Remove the second snap ring and lift the seal support, seal seat, and
drive endcap from the shaft.
11. Loosen the set screws on the seal head and remove it from the shaft.
If the seal head face is scored, damaged, contains solids, or the
wedge ring or ring is damaged, refer to Appendix A and contact
Brookfield Engineering Laboratories for a replacement seal head.
12. Check the drive shaft for scoring or damage where the wedge ring
or O-ring is located. Refer to Appendix A and contact Brookfield
Engineering Laboratories for a replacement drive shaft.
13. Remove the seal seat and retaining ring from the drive endcap.
14. Inspect seal seat and O-ring for wear and replace if required.
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