Viking Pump TSM212: H-LL 724/4724 - Manual (Page 7)

SECTION TSM 212 ISSUE F PAGE 7 OF 9
2. Be sure shaft is free from burrs and foreign particles that
might damage the casing bushing. Install the rotor and
shaft. Place the end of the shaft in the casing bushing
and turn from right to left slowly, pushing until the ends
of the rotor teeth are just below the face of the casing.
Refill the casing lubrication chamber with multipurpose
grease and place the tapered sleeve in the lipseal for
seal chamber as shown in Figure 9. Remove the tapered
sleeve from the shaft (Series 4724).
3. On Series 724, pumps replace the packing retainer
washer and pack the pump. It is good practice to install
a set of new packing. The pump should be packed with
a packing suitable for the liquid being pumped.
NOTE: If the pump has a lantern ring it must be located
below the grease fitting opening. Install and seat each
ring one at a time, staggering the ring joints from one
side of the shaft to the other. Lubricate the packing rings
with oil, grease or graphite to aid in assembly. A length of
pipe or tubing will facilitate installation and seating of the
packing rings.
4. Install the packing gland, studs and nuts. Back the rotor
and shaft out of the casing just far enough to insert the
packing gland through the side opening on the bracket
and over the end of the shaft. This gland cannot be
assembled over the end of the shaft when in place. Push
the rotor and shaft back into place. Make sure the gland
is installed square and tighten nuts wrench-tight, back off
and retighten to a finger tight condition.
5. Place a head gasket on the head. The normal amount
used on all sizes is one .015” gasket.
6. Place the idler and bushing assembly on the idler pin
and install the head and idler on the pump. If the pump
has a jacketed head plate it will be desirable to use a
new O-ring. On these pumps tighten the capscrew until
metal to metal contact is made at the joint between the
head and the jacket plate. Tilt the top of the head away
from the pump slightly until the crescent enters the inside
diameter of the rotor and rotate the idler until its teeth
mesh with the rotor teeth.
7. Place the bearing collar on the shaft as far as it will go.
Replace the half round rings if furnished with the pump.
8. Install the bearing housing and lipseal in the bracket.
9. Pack the ball bearing with grease, place on the shaft and
push or drive into place in the bearing housing.
10. Turn the end cap (with lipseal and bearing collar inside)
into the bearing housing until tight against the bearing.
Lock in place with the setscrews in the outside diameter
of the bearing housing.
11. NOTE: A piece of brass or wood inserted through the
port opening between the rotor teeth will keep the shaft
from turning. Install lockwasher and locknut on shaft,
tighten locknut and bend down tang of lockwasher into
slot of locknut.
12. Adjust pump end clearance, following procedures listed
under, “Thrust Bearing Adjustment.”
fIgURE 6
fIgURE 7
fIgURE 8
DANgER !
Before starting pump, be sure all drive
equipment guards are in place.
failure to properly mount guards may
result in serious injury or death.
COAT WITH LIgHT OIL
BEfORE ASSEMBLY
TAPERED SLEEVE
ANCHOR PINS ALIgNED
WITH SLOTS
INSTALLATION TOOL
MECHANICAL SEAL
(ROTARY MEMBER)
COAT WITH LIgHT OIL
BEfORE ASSEMBLY