Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com
CONTENTS
Maintenance . . . . . . . . . . . . . . . . . . . . . . 3
Disassembly . . . . . . . . . . . . . . . . . . . . . . 4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 5
Disassembly . . . . . . . . . . . . . . . . . . . . . 7
Assembly . . . . . . . . . . . . . . . . . . . . . . . 7
Warranty . . . . . . . . . . . . . . . . . . . . . . . . 8
INTRODUCTION
The illustrations used in this manual are for identification
purposes only and cannot be used for ordering parts. Obtain
a parts list from a Viking representative. 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.
In the Viking model number system, basic size letters are
combined with series number (4124B, 4224B) indicating
basic pump construction and material.
This manual deals only with Series 4124B and 4224B Heavy
Duty Bracket Mounted Pumps. Refer to Figures 1 through
11 for general configuration and nomenclature used in this
manual. Pump specifications and recommendations are
listed in Catalog Section 628, Viking Behind the Rotor Seal
internal gear pumps.
FIGURE 1 - LS4124B
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
TECHNICAL SERVICE MANUAL
TECHNICAL SERVICE MANUAL
BEHIND THE ROTOR SEAL HEAVY DUTY PUMPS
SERIES 4124B AND 4224B CAST IRON
SIZES LS, Q, QS
UNMOUNTED PUMP
Non-Jacketed Jacketed
Units are designated by the unmounted
LS4124B
LS4224B
pump model numbers followed by a
letter indicating drive style.
Q4124B
Q4224B
V = V-Belt
D = Direct Connected
R = Viking Speed Reducer
QS4124B
QS4224B
P = Commercial Speed Reducer
Note: Series 4124B and 4224B pumps fitted with optional
pinned-seat seals (the abrasive liquid seals used in 4624B
Series pumps) should reference Technical Service Manual
410.5 for information on seal replacement.
FIGURE 2 - Q4224B
FIGURE 3 - QS4124B
SECTION
TSM 628.1
PAGE
1 OF 12
ISSUE
A
UNITS