Viking Pump TSM151.1 User Manual
TECHNICAL SERVICE MANUAL
HEAVY DUTY STEEL EXTERNAL BRACKET MOUNTED PUMPS
SERIES 123 AND 4123
SIZES H-LL
SECTION TSM 151.1
PAGE 1 OF 13
ISSUE C
CONTENTS
Introduction 1
Special Information 2
Maintenance 3
Packed Pumps 4
Mechanical Seal Pumps
Standard Rubber Bellows Type
(Sizes H, HL, K, KK, LQ & LL) 8
Optional Teflon Seal 12
Thrust Bearing Adjustment 13
Installation of Carbon Graphite Bushings 13
Pressure Relief Valve Instructions 14
INTRODUCTION
The illustrations 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 (123 and 4123) indicating both
unmounted or mounted pump unit.
FIGURE 1
SIZES H AND HL
UNMOUNTED PUMP UNITS
PACKED MECH. SEAL
H123
HL123
K123
KK123
LQ123
LL123
This manual deals only with Series 123 and 4123 heavyduty Steel External Bracket Mounted Pumps. Refer to
Figures 1 through 16 for general configuration and
nomenclature used in this manual. Pump specifications and
recommendations are listed in Catalog Section 151, Series
123 and 4123 Heavy-Duty Steel External Bracket Mounted
Pumps.
H4123
HL4123
K4123
KK4123
LQ4123
LL4123
Units are designated by the
un-mounted pump model
numbers followed by a
letter(s) indicating drive style.
V = V-Belt
D = Direct Connected
R = Viking Speed Reducer
P = Commercial Speed
Reducer
VIKING PUMP INC. •
A Unit of IDEX Corporation •
FIGURE 2
SIZES K AND KK
FIGURE 3
SIZES LQ AND LL
SPECIAL INFORMATION
BEFORE OPENING ANY VIKING PUMP LIQUID
CHAMBER (PUMPING CHAMBER, RESERVOIR,
RELIEF VALVE ADJUSTING CAP FITTING ETC.)
BE SURE:
1. THAT ANY PRESSURE IN CHAMBER HAS
BEEN COMPLETELY VENTED THROUGH
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 NONOPERATIONAL 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 placement 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 to be 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.
DANGER
For additional information on pressure relief valves, refer to
Technical Service Manual TSM000 and Engineering Service
Bulletin ESB-31.
SPECIAL MECHANICAL SEALS: Extra care should be taken
in repair of pumps with mechanical seals. Read and follow all
special information supplied with pump.
MAINTENANCE
Series 123 and 4123 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 handgun 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 Bulleting 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 123 and 4123 pumps.
These tools are in addition to standard mechanics’ tools such
as open end wrenches, pliers, screwdrivers etc. Most of the
items can be obtained from an industrial supply house.
1. Soft Headed Hammer
2. Allen 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
2-751-005-630 for 2.4375 inch Q-M4123
5. Bearing locknut spanner wrench
(Source: #471 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 151.1
ISSUE C PAGE 2 OF 13
PACKED PUMPS
V
V
LIP SEAL
INNER END CAP
PACKING RETAINER
WASHER
BALL BEARING
LIP SEAL
LOCKNUT
OUTER
SETSCREW
INNER
PACKING
PACKING
BRACKET
FIGURE 4
CUTAW AY VIEW OF HL123 WITH CALLOUTS
BRACKET
HEAD
HEAD
POPPET
ALVE
SPRING
BONNET
ADJUSTING
ALVE CAP
EXPLODED VIEW FOR MODELS H123, HL123, K123
ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART
1
Locknut
2
Lockwasher
3
End Cap, (outer)
4
Lip Seal for End Cap
5
Bearing Spacer Collar (outer)
6
Ball Bearing
7
Bearing Spacer Collar (inner)
8
Ring, Half Round (not H,HL)
9
End Cap, (inner)
10
Packing Gland
11
Packing Gland Nut
12
Packing Gland Capscrew
13
Packing
14
Packing Retainer Washer
15
Bracket Bushing
16
Grease Fitting
17
Bracket and Bushing
18
Capscrew for Bracket
19
Bracket Gasket
20
Casing
21
Nut for Flanges
22
Capscrew for Flanges
23
Pipe Flange Gasket
24
Pipe Plug
25
26
27
28
29
30
31
32
33
34
35
36
Rotor and Shaft
Idler and Bushing
Idler Bushing
Head Gasket
Idler Pin
Head and Idler Pin
Gasket for Jacketed Head Plate
Jacketed Head Plate
Capscrew for Head
Relief Valve Gasket
Cascrew for Valve
Internal Relief Valve
SECTION TSM 151.1
ISSUE C PAGE 3 OF 13
DISASSEMBLY
GREASE FITTING LOCATION
SETSCREWS
HALF ROUND
INNER SPACER
INNER LIP
FIGURE 5
DANGER
BEFORE OPENING ANY VIKING PUMP LIQUID
CHAMBER (PUMPING CHAMBER, RESERVOIR,
RELIEF VALVE ADJUSTING CAP FITTING ETC.)
BE SURE:
1. THAT ANY PRESSURE IN CHAMBER HAS
BEEN COMPLETELY VENTED THROUGH
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 NONOPERATIONAL 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.
LOCKWASHER
OUTER SPACER
OUTER LIP SEAL
BRACKET
DISASSEMBLY
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 12.
If 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.
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 0.50 inch and remove
pair of half round rings under inner bearing spacer collar.
There is no half round rings on H and HL size pumps.
SECTION TSM 151.1
ISSUE C PAGE 4 OF 13
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