Viking Pump TSM212: H-LL 724/4724 - Manual (Page 8)

SECTION TSM 212 ISSUE F PAGE 8 OF 9
fIgURE 11
VALVE - LIST Of PARTS
1. Valve Cap 6. Valve Body
2. Adjusting Screw 7. Valve Spring
3. Lock Nut 8. Poppet
4. Spring Guide 9. Cap Gasket
5. Bonnet
PRESSURE RELIEf VALVE
INSTRUCTIONS
1. Remove valve cap.
2. Measure and record the length of extension of the
adjusting screw, See (A) figure 11.
3. Loosen the lock nut and back out adjusting screw until
spring pressure is released.
4. Remove bonnet, spring guide, spring and poppet from
valve body. Clean and inspect all parts for wear or
damage and repair or replace as necessary.
THRUST BEARINg ADJUSTMENT
(See figure 10)
1. Loosen the two set screws “A” in the outer face of the
bearing housing “B” and turn this thrust bearing assembly
“B” clockwise until it can no longer be turned by hand.
Back off counterclockwise only until the rotor shaft can
be turned by hand with a slight noticeable drag.
2. For standard end clearance, back off the thrust bearing
assembly “B” the required number of notches or an
equivalent length measured on the outside of the bearing
housing. See the following table.
fIgURE 9
fIgURE 10
ASSEMBLY
Reverse the procedure outlined under DISASSEMBLY.
If valve is removed for repairs, be sure to replace in same
position. The valve cap should point towards the suction
port.
4. High viscosity and high temperature liquids require
additional end clearances. The amount of extra end
clearance depends on the viscosity or temperature of the
liquid pumped. For specific recommendations, consult
the factory. Each additional notch (or each 1/4”) on the
outside diameter of the bearing housing is equivalent to
an extra end clearance of .002” on H & HL size pumps;
and .0015” on K, KK, L, LQ and LL pumps.
End
Clearance
PUMP
SIZE
TURN BEARINg HOUSINg
C.C.W. NO. Of NOTCHES OR
LENgTH ON O.D., INCHES
.005” H, HL 2.5 0.6” or 5/8”
.008” K, KK, LQ & LL 5.5 0.35” or 1-3/8”
TAPERED SLEEVE
LIPSEAL fOR
SEAL CHAMBER
3. Tighten the two self locking type “Allen” set screws “A,”
in the outboard face of the bearing housing, with equal
force against the bracket. Your pump is now set with
standard end clearances and locked. NOTE: Be sure the
shaft can rotate freely. If not, back off additional notches
and check again.
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.