Viking Pump TSM151.1: H-LL 123/4123 - Manual (Page 9)

SECTION TSM 151.1 ISSUE C PAGE 9 OF 13
12. 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 tools 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 5, page 4.
If this happens, remove inner spacer collar, half round
rings and end cap and start over at Step 11.
13. Pack ball bearing with multi-purpose grease, NLGI #2.
Place on shaft and push or gently drive in place in
bracket.
14. 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 5, page
4.
15. 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 50-
70 ft.– lbs. Torque (H, HL) or 100-130 ft. – lbs. Torque (K,
KK, LQ, LL) . 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 pump.
Remove length of hardwood or brass from port opening.
16. Adjust pump end clearance. Refer to Thrust Bearing
Adjustment, page 11.
17. Lubricate the grease fitting over the seal chamber with
petroleum jelly, petrolatum (Vaseline) or other similar
low melting point lubricant. Lubricate all other grease
fittings with multi-purpose grease, NLGI #2.
FIGURE 10
7. Place seal spring on shaft against rotor hub. Refer to
Figure 10.
8. Slide rotary member, lapped contact surface facing
away from spring, over installation sleeve on shaft until
it is against spring.
Do not compress spring.
9. Coat rotor shaft with non-detergent SAE 30 weight oil.
Start end of shaft in bracket bushing and turn from right
to left, slowly pushing until the ends of the rotor teeth
are just below the face of the casing.
Leave the rotor in this position. Withdrawal of rotor and
shaft may displace the carbon seal rotating face and
result in damage to the seal.
10. Using a .010 to .015 inch head gasket, install head and
idler assembly on pump. Pump head and casing were
marked before disassembly to insure proper
reassembly. If not, be sure idler pin, which is offset in
pump head, is positioned toward and equal distance
between port connections to allow for proper flow of
liquid through pump.
If pump is equipped with jacketed head plate, install at
this time along with new gasket.
Tighten head capscrews evenly.
If pump was equipped with a relief valve and it was
removed during disassembly, install on head with new
gaskets. Relief valve adjusting screw cap must always
point toward suction port. Refer to Figures 1, 2 and 3
on page 1. For relief valve repair or adjustments, Refer
to Pressure Relief Valve Instructions, page 12.
11. Slide inner spacer collar over shaft with recessed end
facing rotor. H and HL size bearing spacer collars are
not recessed.
Place pair of half round rings to lock them in place.
There is not pair of half round rings on H and HL size
pumps. Refer to Figure 5, page 4.
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.
MECHANICAL SEAL ROTARY
MEMBER
ROTOR HUB
SPRING
SHAFT