SECTION TSM 630
PAGE 1 OF 10
ISSUE J
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
TECHNICAL SERVICE MANUAL
CONTENTS
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 Pump 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 (G,
H, HL, AK, AL, K, KK, L, LQ, LL) are combined with series
number (124A, 4124A, 124AE, 4124B, 126A, 4126A, 123A,
4123A, 127A) indicating seal and pump construction material.
This manual deals only with Series 124A, 4124A, 124AE,
4124AE, 126A, 4126A, 123A, 4123A, 127A, and 4127A Heavy
Duty Bracket Mounted Pumps. Refer to Figures 1 through
12 for general configuration and nomenclature used in this
manual. Pump specifications and recommendations are listed
in Catalog Section 630, Heavy Duty Bracket Mounted Pumps,
with Universal Seal Type Bracket.
Safety Information & Instructions . . . . . . . . . . . . 2
Special Information . . . . . . . . . . . . . . . . . . . 3
Maintenance . . . . . . . . . . . . . . . . . . . . . . 3
Cartridge Mechanical Seal Pumps . . . . . . . . . . . 4
Packed Pumps . . . . . . . . . . . . . . . . . . . . . 6
Disassembly . . . . . . . . . . . . . . . . . . . . . . 6
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 7
Thrust Bearing Adjustment . . . . . . . . . . . . . . . 8
Installation of Carbon Graphite Bushings . . . . . . . . 8
Pressure Relief Valve Instructions . . . . . . . . . . . 9
UNMOUNTED PUMP UNITS
PACKED MECH. SEAL
A = Universal Seal Pump
AE = Universal Seal Pump
with larger rotor shaft
(L, LQ, LL only)
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
G124A G4124A
H124A
H126A
H123A
H127A
H4124A
H4126A
H4123A
H4127A
HL124A
HL126A
HL123A
HL127A
HL4124A
HL4126A
HL4123A
HL4127A
AK124A
AL124A
AK4124A
AL4124A
K124A
K126A
K123A
K127A
K4124A
K4126A
K4123A
K4127A
KK124A
KK126A
KK123A
KK127A
KK4124A
KK4126A
KK4123A
KK4127A
L124A
L124AE
L126A
L4124A
L4124AE
L4126A
LQ124A
LQ124AE
LQ126A
LQ123A
LQ127A
LQ4124A
LQ4124AE
LQ4126A
LQ4123A
LQ4127A
LL124A
LL124AE
LL126A
LL123A
LL127A
LL4124A
LL4124AE
LL4126A
LL4123A
LL4127A
FIGURE 2
SIZES H & HL
(H4124A shown)
FIGURE 1
SIZE G
(G4124A shown)
FIGURE 3
SIZES AK & AL
(AK4124A shown)
FIGURE 4
SIZES K & KK
(K123A shown)
FIGURE 5
SIZE LL
(LL4126A shown)
UNIVERSAL SEAL HEAVY DUTY PUMPS
SERIES 124A, 4124A, 124AE, AND 4124AE CAST IRON
SERIES 126A AND 4126A DUCTILE IRON
SERIES 123A AND 4123A STEEL
SERIES 127A AND 4127A STAINLESS STEEL
SIZES G, H, HL, AK, AL, K, KK, L, LQ, LL
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