Viking Pump TSM710: KE-LQE 4076/4176 - Manual (Page 7)

SECTION TSM 710 ISSUE D PAGE 7 OF 8
DaNger !
before opening any viking pump liquid
chamber (pumping chamber, reservoir,
relief valve adjusting cap fitting, etc.)
be sure:
1. That any pressure in the chamber has
been completely vented through the
suction or discharge lines or other
appropriate openings or connections.
2. That the driving means (motor, turbine,
engine, etc.) has been “locked out” or
made non-operational so that it cannot
be started while work is being done on
pump.
3. That you know what liquid the pump
has been handling and the precautions
necessary to safely handle the liquid.
Obtain a material safety data sheet
(MSDS) for the liquid to be sure these
precautions are understood.
failure to follow above listed
precautionary measures may result in
serious injury or death.
PreSSure reLief vaLve
iNSTruCTiONS
ThruST beariNg aDJuSTMeNT
See figure 4 on page 3.
1. Loosen the two setscrews in the outer face of the
bearing housing and turn the thrust bearing assembly
clockwise until it can no longer be turned by hand. Back
off counterclockwise until the rotor shaft can be turned
by hand with a slight, noticeable drag.
2. For standard (.12 mm) end clearance, back off the thrust
bearing assembly 30 mm as measured on the outside
diameter of the bearing housing.
3. Tighten the two set screws with equal force against the
bracket. End clearances are now set and locked.
NOTe: Be sure the shaft can rotate freely by hand. If not, back
off additional length on outside diameter and check again.
If there is still some noticeable drag, see “aSSeMbLy” on
page 5, reference notes under item 4 and 5.
4. High viscosity liquids require additional end clearances.
The amount of extra end clearance depends on
the viscosity of the liquid pumped. For specific
recommendations, consult your nearest authorized
Viking Pump distributor. Each 10 mm turn on the outside
diameter of the bearing housing is equivalent to an extra
end clearance of (.04 mm).
iNSTaLLaTiON Of CarbON
graPhiTe buShiNgS
When installing carbon graphite bushings, extreme care must
be taken to prevent breaking. Carbon graphite is a brittle
material and cracks easily. If cracked, the bushing will quickly
disintegrate. Using a lubricant on the bushing and the mating
part will help in installation. The additional precautions listed
below must be followed for proper installation:
1. A press must be used for installation.
2. Be certain the bushing is straight.
3. Do not stop the pressing operation until the bushing is in
the proper position; starting and stopping will result in a
cracked bushing.
4. Check the bushing for cracks after installation.
iNSTaLLaTiON Of fOOT
Series 4176 pumps come equipped with a removable
mounting foot. Removal of the foot is not normally required for
maintenance. In cases where the foot needs to be replaced
or is being added, use the following steps.
1. Ensure alignment pins are installed in the top of the foot
prior to assembly of the foot to the casing.
2. Match the foot to the casing by inserting pins into the
bottom of the casing.
3. Secure foot to casing using the socket head capscrews
and lock washers. Torque capscrews to 100-110 N•m.
MeChaNiCaL SeaL
figure 8
O-riNg
CaPSCreW
SeaL
PLaTe
SeaT
gaSKeT
STaTiONary
faCe
rOTaTiNg faCe
rOTaTiNg MeMber
ShafT