Maintenance
Ampco Pumps Company
Page 14
TYPE E WATER COOLED BALANCED DOUBLE SEAL
1. Install the back plate, gasket, and casing.
2. Secure the casing to the back plate with the clamp and gasket.
3. To mark the location of the drive collar, scribe a line on the shaft.
4. Remove the casing clamp, casing, and back plate.
5. Place the follower, one carbon seal, one seal oring, one cup, and the drive collar on the
shaft.
6. Set the drive collar to the scribe mark shown in Figure 3 and secure it to the shaft by
tightening the set screws.
7. Install the remaining seal components, including the seal spring, cup, seal o-ring, and
carbon onto the shaft. Take care that the slot in the seal cup is aligned with the pin on the
drive collar. Gentle finger pressure will overcome o-ring resistance on the shaft.
8. Place the stuffing box and back plate assembly over the stub shaft and the seal
components.
9. Next set the follower onto the stuffing box and secure it by tightening the four screws.
10. Assemble the seal guard and tighten the nut.
11. Attach the water inlet and outlet to the stuffing box.
After setting the drive collar and assembling the seal, return the Reassembly (page 10) for final
steps.
Figure 3: E Seals
DISCONNECT ELECTRICAL
POWER SOURCE
Ampco Pumps Company AC+ Dry Blender Manual M-028 Rev C 12.20
