13
PUMP REASSEMBLY SEQUENCE
Step 19. Replace the coupling guards and
secure them with screws.
The pump has now been completely
reassembled and should be ready for
service.
Step 10A. Install the motor stool on the
pump head. Grease the threads on the four
Allen screws that secure it, then install the
Allen screws and cross-tighten them to
45 ft.-lbs. torque.
Step 10B. If you removed the motor at
disassembly, reinstall it now. Grease the
threads on the motor bolts and then install
and cross-tighten them to 30 ft.-lbs. torque.
Step 11. Lubricate the shaft seal and O-rings.
Install the seal on the shaft, making sure that
it seats on the pump head.
Step 12. Slide the seal carrier down the
shaft until it seats solidly on the shaft seal
flange. Grease the threads on the Allen
screws and install the screws. Cross-tighten
them to 46 ft.-lbs. torque.
Step 13. Cross-tighten the Allen screws
holding the seal to 6 ft.-lbs. torque.
Step 14. Lift the pump shaft and insert the
spacer under the seal flange.
Step 15. Install the coupling with the shelf
at the bottom of the coupling flush with the
top of the pump shaft as shown. Grease the
coupling Allen screws and loosely install all
four of them.
Step 16. After all four Allen screws are
in place, cross-tighten them to 45 ft.-lbs.
torque, making sure that the gap between
the halves remains even on both sides as
you tighten the screws.
Step 17. Remove the spacer from under the
seal flange. For safekeeping, clamp it under
the Allen screw in the extra hole on the seal
carrier.
Step 18. Turn the pump shaft by hand
to check rotation. If it binds or drags,
disassemble the pump and repeat the
assembly procedure.