Viking Pump TSM142.2 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 BRACKET MOUNTED PUMPS

CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . 1

Safety Information. . . . . . . . . . . . . . . . . . . . 2

Special Information . . . . . . . . . . . . . . . . . . . 3

Maintenance . . . . . . . . . . . . . . . . . . . . . . 4

Packed Pumps . . . . . . . . . . . . . . . . . . . . . 5

Disassembly . . . . . . . . . . . . . . . . . . . . . 6

Assembly . . . . . . . . . . . . . . . . . . . . . . . 7

Mechanical Seal Pumps . . . . . . . . . . . . . . . . 8

Disassembly . . . . . . . . . . . . . . . . . . . . . 9

Assembly . . . . . . . . . . . . . . . . . . . . . . .10

Thrust Bearing Adjustment . . . . . . . . . . . . . . .12

Installation of Carbon Graphite Bushings . . . . . . . .12

Pressure Relief Valve Instructions . . . . . . . . . . 13

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 the series number (225 and 4225) and used to
indicate either an unmounted pump or mounted pump unit.

SERIES 225 AND 4225

SIZES LS, Q, QS, M

SIZE LS - FIGURE 1

(Shown with Jacketed Head Plate)

SECTION TSM 142.2

PAGE 1 Of 14

ISSUE E

UNMOUNTED PUMP UNITS

PACKED MECH. SEAL

LS225 LS4225

Q225 Q4225

QS225 QS4225

M225 M4225

This manual deals only with Series 225 and 4225 Heavy
Duty Bracket Mounted Pumps. Refer to Figures 1 through
13 for general configuration and nomenclature used in this
manual. Pump specifications and recommendations are
listed in Catalog Section 142, Series 225 and 4225 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

VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA

SIZES Q, QS AND M - FIGURE 2

(Shown with Jacketed Relief Valve Type Head)

SAFETY INFORMATION AND INSTRUCTIONS

IMPROPER INSTALLATION, OPERATION OR MAINTENANCE OF PUMP MAY CAUSE SERIOUS INJURY
OR DEATH AND/OR RESULT IN DAMAGE TO PUMP AND/OR OTHER EQUIPMENT. VIKING’S WARRANTY
DOES NOT COVER FAILURE DUE TO IMPROPER INSTALLATION, OPERATION OR MAINTENANCE.

THIS INFORMATION MUST BE FULLY READ BEFORE BEGINNING INSTALLATION, OPERATION OR
MAINTENANCE OF PUMP AND MUST BE KEPT WITH PUMP. PUMP MUST BE INSTALLED, OPERATED
AND MAINTAINED ONLY BY SUITABLY TRAINED AND QUALIFIED PERSONS.

THE FOLLOWING SAFETY INSTRUCTIONS MUST BE FOLLOWED AND ADHERED TO AT ALL TIMES.

Symbol
Legend :

!

!

!

!

!

WARNING

!

WARNING

Danger - Failure to follow the indicated

instruction may result in serious injury

!

or death.

BEFORE opening any liquid chamber (pumping
chamber, reservoir, relief valve adjusting cap fitting,
etc.) be sure that :

● Any pressure in the chamber has been completely
vented through the suction or discharge lines or
other appropriate openings or connections.

● The pump drive system means (motor, turbine,
engine, etc.) has been “locked out” or otherwise
been made non-operational so that it cannot be
started while work is being done on the pump.

● You know what material the pump has been
handling, have obtained a material safety data
sheet (MSDS) for the material, and understand
and follow all precautions appropriate for the safe
handling of the material.

BEFORE operating the pump, be sure all drive guards
are in place.

DO NOT operate pump if the suction or discharge
piping is not connected.

DO NOT place fingers into the pumping chamber or
its connection ports or into any part of the drive train
if there is any possibility of the pump shafts being
rotated.

DO NOT exceed the pumps rated pressure, speed, and
temperature, or change the system/duty parameters
from those the pump was originally supplied, without
confirming its suitability for the new service.

BEFORE operating the pump, be sure that:

● It is clean and free from debris

● all valves in the suction and discharge pipelines

are fully opened.

● All piping connected to the pump is fully supported

and correctly aligned with the pump.

● Pump rotation is correct for the desired direction

of flow.

WARNING

WARNING

!

WARNING

!

!

!

WARNING

!

WARNING

Warning - In addition to possible serious

injury or death, failure to follow the
indicated instruction may cause damage
to pump and/or other equipment.

INSTALL pressure gauges/sensors next to the
pump suction and discharge connections to monitor
pressures.

USE extreme caution when lifting the pump. Suitable
lifting devices should be used when appropriate. Lifting
eyes installed on the pump must be used only to lift
the pump, not the pump with drive and/or base plate.
If the pump is mounted on a base plate, the base plate
must be used for all lifting purposes. If slings are used
for lifting, they must be safely and securely attached.
For weight of the pump alone (which does not include
the drive and/or base plate) refer to the Viking Pump
product catalog.

DO NOT attempt to dismantle a pressure relief valve
that has not had the spring pressure relieved or is
mounted on a pump that is operating.

AVOID contact with hot areas of the pump and/or
drive. Certain operating conditions, temperature
control devices (jackets, heat-tracing, etc.), improper
installation, improper operation, and improper
maintenance can all cause high temperatures on the
pump and/or drive.

THE PUMP must be provided with pressure protection.
This may be provided through a relief valve mounted
directly on the pump, an in-line pressure relief valve,
a torque limiting device, or a rupture disk. If pump
rotation may be reversed during operation, pressure
protection must be provided on both sides of pump.
Relief valve adjusting screw caps must always point
towards suction side of the pump. If pump rotation is
reversed, position of the relief valve must be changed.
Pressure relief valves cannot be used to control pump
flow or regulate discharge pressure. For additional
information, refer to Viking Pump’s Technical Service
Manual TSM 000 and Engineering Service Bulletin
ESB-31.

THE PUMP must be installed in a matter that allows
safe access for routine maintenance and for inspection
during operation to check for leakage and monitor
pump operation.

SECTION TSM 142.2 ISSUE E PAGE 2 OF 14

SPECIAL INFORMATION

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.

JACKETING of the bracket and head provide large chambers
at both ends of the pumping chamber and around the stuffing
box for temperature control of the product in the pump.

ROTATION: Viking pumps operate equally well in a clockwise
or counterclockwise rotation. When rotation changes, the
suction and discharge is reversed.

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 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, page 1.

5. Pressure relief valves cannot be used to control pump
flow or regulate discharge pressure.

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 these pumps. Be sure
to read and follow all special instructions supplied with your
pump.

MAINTENANCE

The series 225 and 4225 pumps are designed for long,
trouble-free service life under a wide variety of application
conditions with a minimum of maintenance. The points listed
below will help you get this long service life from your pump.

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 generally
require some initial packing adjustment to control leakage as
packing “runs in”. Make initial packing adjustments carefully
and do not over-tighten the packing gland. After initial
adjustment, occasional inspection will reveal the need for
packing gland adjustment and/or replacement of the packing.

Refer to instructions under “Disassembly”, page 6, and
“Assembly”, page 7, regarding repacking the pump.

END CLEARANCE ADJUSTMENT: After long term
operation, it is sometimes possible to improve the
performance of the pump, without major repair, through
adjustment of end clearance of the pump. Refer to

Instructions under “Thrust Bearing Adjustment”, page
12, for information regarding this procedure.

CLEANING THE PUMP: It is good practice to keep the pump

as clean as possible. This will facilitate inspection, adjustment
and repair work and help prevent omission of lubrication of
fittings covered or hidden with dirt..

STORAGE: If the pump is to be stored or not used for any
appreciable length of time, it should be drained, and then a
light coat of lubricating and preservative oil should be applied
to the internal parts. Lubricate all fittings.

SECTION TSM 142.2 ISSUE E PAGE 3 OF 14

MAINTENANCE

SUGGESTED REPAIR TOOLS: The following tools must
be available to properly repair Series 225 and 4225 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

5. Bearing locknut spanner wrench

(Source: #471 J. H. Williams & Co. or equal)

JACKETED

AREA

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

IDLER

ROTOR

SHAFT

PACKING

GLAND

BRACKET

CASING

IDLER

PIN

JACKETED

HEAD

Cutaway View Of Packed Pump Model M225 with Callouts (QS size casing has opposite ports)

SECTION TSM 142.2 ISSUE E PAGE 4 OF 14

FIGURE 3

PART 1 - PACKED PUMPS

EXPLODED VIEW FOR MODEL LS225

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 Assembly 30 Head and Idler Pin Assembly

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 Head

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 Assembly

13 Packing 26 Idler and Bushing Assembly

EXPLODED VIEW FOR MODELS Q, QS AND M225

ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART

1 Locknut 12 Packing Retainer Washer 23 Rotor and Shaft Assembly

2 Lockwasher 13 Bracket Bushing 24 Idler and Bushing Assembly

3 End Cap (Outer) 14 Bracket and Bushing Assembly 25 Idler Bushing

4 Lip Seal for End Cap 15 Grease Fitting 26 Head Gasket

5 Bearing Spacer Collar (Outer) 16 Capscrew for Bracket 27 Idler Pin

6 Ball Bearing 17 Bracket Gasket 28 Head and Idler Pin Assembly

7 End Cap (Inner) 18 Nut for Flanges 29 Stud for Head

8 Packing Gland 19 Stud for Flanges 30 Nut for Head

9 Packing Gland Nut 20 Casing (QS size has opposite ports) 31 Relief Valve Gasket

10 Packing Gland Capscrew 21 Pipe Flange Gasket 32 Capscrew for Relief Valve

11 Packing 22 Pipe Plug 33 Internal Relief Valve

SECTION TSM 142.2 ISSUE E PAGE 5 OF 14