Finish Thompson VKC5.5,6,6H,7,8,10 SERIES - Manual (Page 5)

5
11. Reassemble the wet end by placing the impeller (items 18 and 19) onto
the ceramic shaft in the column housing adapter (item 15). Install the
housing o-ring (item 16), and lubricate with a compatible lubricant.
Align the marks made on the housing (item 21) and the column hous-
ing adapter (item 15) during disassembly. Install the impeller housing
(item 21) onto the column housing adapter taking care not to dislodge
the o-ring. Align the bolt holes and install the six mounting screws
(item 22). Use a PTFE thread lubricant on the PVDF screws. Following
the pattern in Figure 5, carefully tighten using a screwdriver. Do not
over- tighten the screws (recommended maximum torque is 25 in-lbs.)
Reach into the suction and spin the impeller with your finger to verify
it is not rubbing or binding.
Figure 5
12. Slide the locking ring over the end of the column extension with the
smaller inside diameter side toward the motor. Lubricate the column
rings (item 12) with a compatible lubricant and install the “wet end”
by threading it on until the flats line up. Pull the locking ring toward
the pump end and snap it in place locking the two sections together.
13. Rotate the motor fan by hand to verify nothing is rubbing or binding. Reinstall
the pump into the system according to the installation instructions.
GENERAL NOTES
1. Do not pump liquids containing metal fines.
2. If magnets decouple, stop the pump immediately. The rare earth
magnets used in this pump are more resistant to demagnetization,
but operating the pump with the magnets decoupled will eventually
weaken the magnets.
3. Plastic pumps will expand and contract with temperature so periodically
check and hand tighten screws.
4. Use a chemically compatible thread lubricant on threads of column
sections.
5. The setting of the drive magnet dimension is critical. Failure to prop-
erly set the dimension may result in decoupling or damage to pump
components.
6. An information sticker is attached to the motor adapter section. The
first line is the model number, the second is the serial number. See
Figure 6.
Figure 6
7. The pump will contain various numbers of shaft bearings (item 28)
based on the length of the pump as follows:
12” pump
= (2) shaft bearing
18” pump = (2) shaft bearings
24” pump = (3) shaft bearings
30” pump = (4) shaft bearings
36” pump = (5) shaft bearings
42” pump = (6) shaft bearings
48” pump = (7) shaft bearings
54” pump = (8) shaft bearings
60” pump = (9) shaft bearings
8. Due to the hermetically sealed design, the pump will displace liquid
as follows:
12” pump = approximately 1 gallon (3.78 liters)
Add approximately 1 quart (.95 liter) per column section.
E.G. 24” pump = 1-1/2 gallons (4.73 liters)
9. 12” pumps do not have column extensions.