Viking Pump TSM161.3 User Manual
Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com
TECHNICAL SERVICE MANUAL
HEAVY-DUTY STAINLESS STEEL BRACKET
CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . 1
Special Information . . . . . . . . . . . . . . . . . . . 2
Maintenance . . . . . . . . . . . . . . . . . . . . . . 3
Packed Pumps . . . . . . . . . . . . . . . . . . . . . 4
Mechanical Seal Pumps . . . . . . . . . . . . . . . . 7
Thrust Bearing Adjustment . . . . . . . . . . . . . . .11
Installation of Carbon Graphite Bushings . . . . . . . .11
Pressure Relief Valve Instructions . . . . . . . . . . . 11
INTRODUCTION
The illustrations used in this manual are for identification
purposes only and cannot be used for ordering parts. Obtain a
parts list from the factory or a Viking® representative. Always
give complete name of part, part number and material with
model number and serial number of pump when ordering
repair parts. The unmounted pump or pump unit model
number and serial number are on the nameplate.
In the Viking model number system, basic size letters are
combined with series number (127 and 4127) and used to
indicate either an unmounted pump or mounted pump unit.
MOUNTED PUMPS
SERIES 127 AND 4127
SIZES LS, Q, QS, M
SECTION TSM 161.3
PAGE 1 Of 12
ISSUE D
FIGURE 1
Size LS
UNMOUNTED PUMP UNITS
PACKED MECH. SEAL
LS127 LS4127
Q127 Q4127
QS127 QS4127
M127 M4127
This manual deals only with Series 127 and 4127 Heavy Duty
Stainless Steel Bracket Mounted Pumps. Refer to Figures 1
through 10 for general configuration and nomenclature used
in this manual. Pump specifications and recommendations
are listed in Catalog Section 161, Series 127 and 4127 Heavy
Duty Bracket Mounted Pumps.
Units are designated by the
unmounted pump model
numbers followed by a
letter indicating drive style.
V = V-belt
D = Direct Connected
R = Viking Speed Reducer
P = Commercial Speed
Reducer
FIGURE 2
Sizes Q, QS and M
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
SPECIAL INFORMATION
DANGER !
Before opening any Viking pump liquid
chamber (pumping chamber, reservoir,
relief valve adjusting cap fitting, etc.)
Be sure:
For additional information on pressure relief valves, Refer
to Technical Service Manual TSM000 and Engineering
Service Bulletin ESB-31.
SPECIAL MECHANICAL SEALS
Extra care must be taken in repair of pumps with mechanical
seals. Read and follow all special information supplied with
pump.
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.
ROTATION: Viking pumps operate equally well in a clockwise or counterclockwise rotation. Shaft rotation determines
which port is suction and which is discharge. Port in area
where pumping elements (gear teeth) come out of mesh is
suction port.
PRESSURE RELIEF VALVES:
1. Viking pumps are positive displacement pumps and
must be provided with some sort of pressure protection.
This may be a relief valve mounted directly on the pump,
an inline pressure relief valve, a torque limiting device or
a rupture disk.
2. There are relief valve options available on those pump
models designed to accept a relief valve. Options may
include a return to tank relief valve and a jacketed relief
valve. Pumps equipped with a jacketed head plate are
generally not available with a relief valve.
3. If pump rotation is reversed during operation, pressure
protection must be provided on both sides of pump.
4. Relief valve adjusting screw cap must always point
towards suction side of pump. If pump rotation is
reversed, remove pressure relief valve and turn end for
end. Refer to Figures 1 and 2.
5. Pressure relief valves cannot be used to control pump
flow or regulate discharge pressure.
MAINTENANCE
Series 127 and 4127 pumps are designed for long, troublefree service life under a wide variety of application conditions
with a minimum of maintenance. The points listed below will
help provide long service life.
LUBRICATION: External lubrication must be applied slowly
with a hand gun to all lubrication fittings every 500 hours of
operation with multi-purpose grease, NLGI #2. Do not overgrease. Applications involving very high or low temperatures
will require other types of lubrication. Refer to Engineering
Service Bulletin ESB-515. Consult factory with specific
lubrication questions.
PACKING ADJUSTMENT: New packed pumps require initial
packing adjustment to control leakage as packing “runs in”.
Make initial adjustments carefully and do not over-tighten
packing gland. After initial adjustment, inspection will reveal
need for packing gland adjustment or packing replacement.
Refer to instructions under Disassembly, page 4, and
Assembly, page 5, regarding repacking pump.
CLEANING PUMP: Keep pump as clean as possible. This
will facilitate inspection, adjustment and repair work and help
prevent overlooking a dirt covered grease fitting.
STORAGE: If pump is to be stored, or not used for six months
or more, pump must be drained and a light coat of nondetergent SAE 30 weight oil must be applied to all internal
pump parts. Lubricate fittings and apply grease to pump shaft
extension. Viking suggests rotating pump shaft by hand one
complete revolution every 30 days to circulate the oil.
SUGGESTED REPAIR TOOLS: The following tools must
be available to properly repair Series 127 and 4127 pumps.
These tools are in addition to standard mechanics’ tools such
as open end wrenches, pliers, screw drivers, etc. Most of the
items can be obtained from an industrial supply house.
1. Soft Headed hammer
2. AlIen wrenches (some mechanical seals and set collars)
3. Packing hooks, flexible (packed pumps)
Large for 0.375 inch and up cross section packing
4. Mechanical seal installation sleeve
Viking Part No. 2-751-005-630 for 2.4375 inch seal;
Q-M4127
5. Bearing locknut spanner wrench
(Source: #472 J. H. Williams & Co. or equal)
6. Spanner wrench, adjustable pin type for use on double
end caps (Source: #482 J. H. Williams & Co. or equal)
7. Brass bar
8. Arbor press
SECTION TSM 161.3 ISSUE D PAGE 2 OF 12
PACKED PUMPS
IDLER
ROTOR
HEAD
PACKING
PACKING GLAND
BRACKET
SHAFT
IDLER PIN
CASING
FIGURE 3
CUTAWAY VIEW OF PACKED PUMP MODEL Q OR M127 WITH CALLOUTS (QS CASING HAS OPPOSITE PORTS)
EXPLODED VIEW OF MODEL LS127
ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART
1 Locknut 14 Packing Retainer Washer 27 Idler Bushing
2 Lockwasher 15 Bracket Bushing 28 Head Gasket
3 End Cap (Outer) 16 Grease Fitting 29 Idler Pin
4 Lip Seal for End Cap 17 Bracket and Bushing 30 Head and Idler Pin
5 Bearing Spacer Collar (Outer) 18 Capscrew for Bracket 31 Gasket for Jacket Head Plate
6 Ball Bearing 19 Bracket Gasket 32 Jacket Head Plate
7 Bearing Spacer Collar (Inner) 20 Casing 33 Capscrew for Jacket Head Plate
8 Ring, Half Round 21 Nut for Flanges 34 Relief Valve Gasket
9 End Cap (Inner) 22 Capscrew for Flanges 35 Capscrew for Relief Valve
10 Packing Gland 23 Pipe Flange Gasket 36 Internal Relief Valve
11 Packing Gland Nut 24 Pipe Plug 37 Cover Plate, Relief Valve
12 Packing Gland Capscrew 25 Rotor and Shaft
13 Packing 26 Idler and Bushing
SECTION TSM 161.3 ISSUE D PAGE 3 OF 12
EXPLODED VIEW FOR MODELS Q, QS AND M127
ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART
1 Locknut 13 Bracket Bushing 25 Idler Bushing
2 Lockwasher 14 Bracket and Bushing 26 Head Gasket
3 End Cap (Outer) 15 Grease Fitting 27 Idler Pin
4 Lip Seal for End Cap 16 Capscrew for Bracket 28 Head and Idler Pin
5 Bearing Spacer Collar 17 Bracket Gasket 29 Stud for Head
6 Ball Bearing 18 Nut for Flanges 30 Nut for Head
7 End Cap (Inner) 19 Stud for Flanges 31 Relief Valve Gasket
8 Packing Gland 20 Casing (QS size has opposite ports) 32 Capscrew for Relief Valve
9 Packing Gland Nut 21 Pipe Flange Gasket 33 Internal Relief Valve
10 Packing Gland Capscrew 22 Pipe Plug 34 Cover Plate, Relief Valve
11 Packing 23 Rotor and Shaft
12 Packing Retainer Washer 24 Idler and Bushing
DISASSEMBLY
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.
1. Mark head and casing before disassembly to insure
proper reassembly. The idler pin, which is offset in pump
head, must be positioned toward and equal distance
between port connections to allow for proper flow of
liquid through pump.
Remove head from pump. Do not allow idler to fall from
idler pin. Tilt top of head back when removing to prevent
this. Avoid damaging head gasket. If pump is furnished
with pressure relief valve, it need not be removed from
head or disassembled at this point. Refer to Pressure
Relief Valve Instructions, page 10.
If LS pump has jacketed head plate, it will separate from
head when it is removed. The gasket between head and
jacket head plate must be totally removed. Use new
gasket when assembling pump. Q, QS and M pumps
have jacketed plate welded to head.
2. Remove idler and bushing assembly.
3. Insert length of hardwood or brass through port opening
between rotor teeth to keep shaft from turning. Bend up
tang of lockwasher and with a spanner wrench remove
locknut and lockwasher from shaft.
Remove length of hardwood or brass from port opening.
4. Remove packing gland nuts.
5. Tap shaft forward approximately 0.5 inch and remove
pair of half round rings under inner bearing spacer collar.
Q, QS and M size to not use half round rings.
6. Carefully remove rotor and shaft to avoid damaging
bracket bushing.
7. Remove packing gland from side of bracket.
SECTION TSM 161.3 ISSUE D PAGE 4 OF 12
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