Viking Pump TSM161.3: LS-M 127/4127 - Manual (Page 9)

gREASE fITTINg
SETSCREWS
OUTER END CAP
LOCKWASHER
LOCKNUT
OUTER
SPACER
COLLAR
OUTER LIP
SEAL
BRACKET BALL BEARINg
INNER
LIP SEAL
INNER SPACER
COLLAR
HALf ROUND
RINgS
INNER
END CAP
NYLON INSERT
SECTION TSM 161.3 ISSUE D PAGE 9 OF 12
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.
12. Put lockwasher and locknut on shaft. Insert length of
hardwood or brass through port opening between rotor
teeth to keep shaft from turning. Tighten locknut to 120-
150 ft.– lbs. Torque (LS) or 170-190 ft. – lbs. Torque (Q,
QS, M). Bend one tang of lockwasher into slot of locknut.
If tang does not line up with slot, tighten locknut until it
does. Failure to tighten locknut or engage lockwasher
tang could result in early bearing failure and cause
damage to rest of pump.
Remove length of hardwood or brass from port opening.
13. Adjust pump end clearance. Refer to Thrust Bearing
Adjustment, page 10.
14. Lubricate all grease fittings with multi-purpose grease,
NLGI #2.
4. Clean rotor shaft and bracket seal housing bore. Be sure
they are free of dirt, grit and scratches. Gently radius
leading edge of shaft diameter over which seal must be
placed.
5. A tapered sleeve is available, at extra cost, for Q, QS and
M pumps from Viking Pump Division for seal installation
on shaft. LS size pump shaft is tapered and installation
sleeve is not available. Place tapered sleeve on shaft,
Refer to figure 6.
6. Never touch sealing faces with anything except clean
hands or clean cloth. Minute particles can scratch the
seal faces and cause leakage.
Coat tapered sleeve and inside of the rotary member
with a generous quantity of SAE 30 non-detergent oil.
Grease is not recommended. Start rotary member on
shaft and over tapered sleeve.
7. Move rotary member so setscrews are directly below
seal access holes on left side of bracket (viewed from
shaft end) Refer to figure 5. Tighten all setscrews
securely to shaft. Flush sealing faces of both rotary
member and seal seat with oil and install seal seat and
seat gasket over end of shaft against machined bracket
face. Assemble other seal seat gasket, seal holder, seal
holder plate, capscrews and nuts and tighten securely.
Remove tapered installation sleeve.
Some PTFE seals are equipped with holding clips which
compress the seal springs. Remove holding clips to
release springs after seal is installed on shaft.
8. Slide inner spacer collar over shaft with recessed end
facing rotor. Q, QS and M size bearing spacer collars are
not recessed.
Place pair of half round rings on shaft and slide inner
bearing spacer collar over half round rings to lock them
in place. There is no pair of half round rings on Q, QS
and M size pumps. Refer to figure 7.
9. Press lip seal, lip facing end of shaft, in inner end cap
and insert end cap through shaft end of bracket. Turn
end cap clockwise, looking at shaft end, until it engages
threads. End cap spanner wrench holes must be facing
rotor. Turn end cap with spanner wrench until it projects
slightly from opening on side of bracket. End cap must
not be turned so far that lip seal drops off end of spacer
collar on shaft or end cap becomes disengaged from
threads. Refer to figure 7.
If this happens, remove inner spacer collar, half round
rings and end cap and start over at Step 8.
10. Pack ball bearing with multi-purpose grease, NLGI
#2. Place on shaft and push or gently drive in place in
bracket.
11. Press lip seal, lip facing end of shaft, in outer end cap
and insert end cap in bracket. Turn end cap in bracket
until it is tight against bearing. Refer to figure 7.
fIgURE 7