Viking pump 123C Series Technical & Service Manual

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TECHNICAL SERVICE MANUAL: INSTALLATION, OPERATION & MAINTENANCE

TABLE OF CONTENTS

Model Number Chart ........................................................................1
Introduction ......................................................................................1
Safety Information & Instructions .....................................................2
Special Information ..........................................................................3
Rotation ........................................................................................3
Circulation Lines ...........................................................................3
Suckback & Flush Holes ..............................................................3
Jacketed Ports .............................................................................3
Pressure Relief Valves .................................................................3
Mechanical Seals .........................................................................3
Maintenance .....................................................................................4
Lubrication ....................................................................................4
Packing Adjustment .....................................................................4
Cleaning Pump .............................................................................4
Storage .........................................................................................4
Suggested Repair Tools ...............................................................4
Removal: Behind the Rotor Mechanical Seal ..................................8
Installation: Behind the Rotor Mechanical Seal ...............................8
Removal: Cartridge Mechanical Seal ..............................................9
Installation: Cartridge Mechanical Seal ...........................................9
Removal: Component Mechanical Seal ........................................10
Installation: Component Mechanical Seal .....................................10
Removal: Packing .......................................................................... 11
Installation: Packing ....................................................................... 11
Pump Disassembly ........................................................................ 11
Pump Assembly .............................................................................13
Pump Flange Assembly .................................................................14
Thrust Bearing Adjustment ............................................................14
Installation: Carbon Graphite Bushings .........................................15
Bracket Bushing Installation: Stuffing Box Seals .............................15
Bracket Bushing Installation: Behind the Rotor Seal .......................15
Pressure Relief Valve Instructions .................................................16
Disassembly ...............................................................................16
Assembly ....................................................................................16
Pressure Adjustment ..................................................................16
Important Ordering Information ..................................................16
Pipe Mounting ................................................................................17
APPENDIX ...........................................................17
(Formerly TSM 000)
General Installation Notes ..............................................................17
Foundation .....................................................................................19
Component & Unit Lifting Features ...............................................19
Alignment .......................................................................................20
Piping .............................................................................................21
Start Up ..........................................................................................22
Troubleshooting .............................................................................22
Vacuum Gauge - Suction Port ...................................................22
Pressure Gauge - Discharge Port ..............................................23
Rapid Wear ...................................................................................24
Preventative Maintenance .............................................................24
Do's & Don'ts .................................................................................25
Installation ..................................................................................25
Operation....................................................................................25
Maintenance ...............................................................................25
ESB-515 .........................................................................................26
Lubrication of Viking Pumps ......................................................26
Lubrication of Viking Reducers ..................................................26
Lubrication of Viking Associative Equipment .............................26
UNIVERSAL PRODUCT LINE: STEEL EXTERNALS
123C SERIES™, 4123C SERIES™,
223C SERIES™, 4223C SERIES™
SIZES: H, HL, K, KK, L, LL, LS, Q, QS
© 2024 Viking Pump, Inc. • Cedar Falls, IA

MODEL NUMBER CHART

NON-JACKETED
Packed Mech. Seal
H123C H4123C
HL123C HL4123C
K123C K4123C
KK123C KK4123C
L123C L4123C
LL123C LL4123C
LS123C LS4123C
Q123C Q4123C
QS123C QS4123C

INTRODUCTION

The illustrations used in this manual are for identification
purposes only and cannot be used for ordering parts.
Obtain a parts list from your Viking Pump
Always give a complete name of part, part number and
material with the 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.
This manual only applies to the pump models specified in the
"Model Number Chart" on page 1. Pump specifications and
recommendations are listed in the Catalog Sections, which
are available at vikingpump.com.
FIGURE 1: H, HL SIZES
(HL123C SHOWN)
FIGURE 3: L, LL, LS SIZES
(LL123C SHOWN)
TSM 2300
Page 1 of 26
Issue A
JACKETED
Packed Mech. Seal
H223C H4223C
HL223C HL4223C
K223C K4223C
KK223C KK4223C
L223C L4223C
LL223C LL4223C
LS223C LS4223C
Q223C Q4223C
QS223C QS4223C
representative.
®
FIGURE 2: K, KK SIZES
(KK4223C SHOWN)
FIGURE 4: Q, QS SIZES
(QS4223C SHOWN)