Viking Pump TSM344: CMD Mag Drive - Manual (Page 14)

SECTION TSM 344 ISSUE F PAGE 14 OF 24
9. Install the spacer O-Ring (item 9) into the front cover
(item 5) as shown. Some O-Ring lubricant may help
keep the O-Rings in place during assembly.
10. Place the front cover (item 5) with O-Ring onto the
assembled pump. Secure the front cover using the
six bolts and washers (items 3, 4) and two nut plates
(item 28) as shown. The flat side of the nut plates mate
against the back of the center housing flange. Tighten
these bolts to the torque specified on page 20. Always
tighten fasteners in a progressive “crisscross” pattern.
11. For IEC frame motors only, if it was removed, install the
motor adaptor plate (item 31) onto the motor face using
the four bolts and washers (items 29 and 30). Always
tighten fasteners in a progressive “crisscross” pattern.
12. Secure the magnet hub (item 25) to the drive magnet
(item 24) using the four screws (item 27). Always tighten
fasteners in a progressive “crisscross” pattern.
13. Inspect and remove any debris or foreign materials that
may have attached to the magnet.
Align the keyway, and slide the drive magnet onto the
motor shaft until the end of the motor shaft aligns with
faces of the drive magnet motor hub as shown below.
Secure with the setscrew (item 26). Application of a no-
seize compound on the shaft and key will make future
maintenance easier.
14. Complete the assembly by replacing the assembled
pump onto the motor, using care not to allow fingers
to get pinched when the magnets attract. Secure the
pump to the motor with the four bolts and washers
(items 22, 23). Always tighten fasteners in a progressive
“crisscross” pattern.
FIGURE 29
FIGURE 30
FIGURE 31
FIGURE 32
FIGURE 33
7. Install the drive gear (item 13), splined-end first, into the
assembly until it bottoms out against the bearing. The
shaft may have to be rotated slightly to properly fit the
splined-end into the drive magnet and mesh gear teeth
with the idler gear.
8. Insert the second bearing (item 10) into the housing
bore until it rests against the housing liner. Bearings are
symmetrical and orientation does not matter.
FIGURE 28