Viking Pump TSM230: Hygienic Series - Manual (Page 8)

SECTION TSM 230 ISSUE B PAGE 8 OF 15
3. Coat the shaft with light food grade oil. Install the shaft
and bearing into the bracket from the pump end.
4. Install the outer ball bearing into the bearing housing.
The outer ball bearing is a “Sealed for Life” bearing that
has seals on both sides. This bearing can be installed
either side first and does not need to be packed with
grease. Do not install the end cap. See Figure 7.
5. Start the thrust bearing assembly into the bracket. Use
a pin type spanner wrench to install the thrust bearing
assembly but do not over-tighten. The thrust bearing
assembly will be used later to set the end clearance of
the pump after the head of the pump has been installed.
6. Install the locknut on the shaft and hand tighten to keep
the shaft in place while the rotor is installed.
7. Install the anti-rotation washer in the bracket side of
the casing with the anti-rotation washer capscrew. The
chamfer side of the washer needs to be facing the casing.
For single seals, install pipe plugs in the seal barrier/buffer
fluid holes. These holes are only used for double seals.
Press the head alignment dowel pins into the casing if
they are not already installed.
8. Install the casing studs in the bracket if they are not
already installed. Use a suitable food grade threadlocker
when installing the casing studs in the bracket. Refer to
casing stud locations shown in Installation of Casing
Studs, page 14. Use the casing studs to install the casing
on the bracket. The port with a casing groove needs to be
used as the suction port for the pump’s primary rotation.
For clean in place pumps, one port must be oriented
downward to allow the pump to be self-draining.
9. Use two nuts to hold the casing in place during assembly.
These nuts should be located on opposite sides of the
casing. A spacer or a couple of larger nuts will need to
be used to compensate for the unthreaded section of the
casing studs. It is important the casing is secured during
assembly to avoid damage to the pump internals.
10. Install the rotor onto the shaft by lining up the splines on
both components.
11. Install the rotor retainer cap onto the rotor. Coat threads
of rotor retainer with food grade anti-seize. Secure in
place using the rotor retainer. Insert length of plastic bar
through port opening between rotor teeth to keep shaft
from turning. Torque the rotor retainer to value shown in
Table 1 using the retainer socket tool. It is critical that
the rotor retainer be torqued properly. Best practice is
to use a calibrated impact wrench or an impact wrench
with a properly sized torque stick. Remove plastic bar
from port opening. See Figure 5.
12. Remove the two nuts added in step 9.
13. Place the idler pin O-ring into the counterbore on the
head. Install the idler pin dowel pin into the idler pin. Align
the dowel pin with the hole or groove in the bore for the
idler pin, and install the idler pin into the head. Secure the
idler pin to the head using the idler pin capscrew.
14. Coat idler pin with light food grade oil and place idler and
bushing on idler pin in head. If replacing the idler bushing,
refer to Installation of Bushings, page 15.
15. Install the head studs in the casing. Use a suitable food
grade threadlocker when installing the head studs in the
casing. Install the head and idler assembly on pump. If
pump is equipped with a jacketed head plate, install the
jacketed head plate at this time.
16. Install the head nuts to secure the head to the casing.
Make sure the nuts are tightened so the end clearance
can be set accurately.
17. Insert length of plastic through port opening between rotor
teeth to keep shaft from turning. Torque locknut to value
shown in Table 1 using a bearing locknut socket and a
torque wrench. Failure to tighten locknut could result in
premature bearing failure and cause damage to pump.
Remove length of plastic from port opening. The locknut
needs to be tightened before the mechanical seal is
installed to prevent damage to the seal faces.
18. Install the end cap into the bearing housing and secure
with the end cap capscrews. Adjust pump end clearance.
Refer to Thrust Bearing Adjustment, page 14. The end
clearance needs to be set before the mechanical seal is
installed to prevent damage to the seal faces.
19. Remove the head nuts. If pump has a jacketed head
plate, remove the jacketed head plate. Remove head
from pump. Jack screw holes (1/4”-20 for H-KK; 3/8”-16
for LQ-LS) are included to assist with head removal. Do
not allow idler to fall from idler pin. Tilt top of head back
when removing to prevent this.
20. Secure casing during assembly by repeating step 9.
21. Insert plastic bar through port opening between rotor teeth
to keep shaft from turning. Use the retainer socket tool to
unscrew the rotor retainer.
22. Remove the rotor retainer cap. See Figure 5.
23. Under the rotor retainer cap are two drilled and tapped
holes to assist in the removal of the rotor. These holes
do not extend through the rotor and are not designed for
jackscrews. If the rotor is not removable by hand, use the
gear puller tool in these holes to remove the rotor. Before
using the gear puller tool, reinstall the rotor retainer to give
the gear puller something to push against in order to avoid
damaging the threads for the rotor retainer. See Figure 6.
24. Install the stationary member of the seal in the casing.
Refer to the additional seal installation instructions in
the Mechanical Seal section, page 10. The casing may
need to be backed away or removed from the bracket to
assist with installation of the seal.
25. Install the rotary member of the seal on the back of
the rotor. Refer to the additional seal installation
instructions in the Mechanical Seal section, page 10.
26. Make sure casing is secure as described in step 9. Install
the rotor onto the shaft by lining up the splines on both
components. Take care not to damage the seal faces and
ensure that the faces do not slip out of position.
27. Coat threads of rotor retainer with food grade anti-seize.
Install the rotor retainer cap O-ring onto the rotor retainer
cap. Install the rotor retainer O-ring onto the rotor retainer.
Install rotor retainer through the rotor retainer cap onto the
rotor and shaft. Insert length of plastic bar through port
opening between rotor teeth to keep shaft from turning.
Torque the rotor retainer to value shown in Table 1
using the retainer socket tool. It is critical that the rotor
retainer be torqued properly. Best practice is to use
a calibrated impact wrench or an impact wrench with a
properly sized torque stick. Remove plastic bar from port
opening. See Figure 5.