Viking Pump TSM141.1: G-LL 125/4125 - Manual

VIKING PUMP, INC. • A Unit of IDEX Corporation •
Cedar Falls, IA 50613 USA
TECHNICAL SERVICE MANUAL
SECTION TSM 141.1
PAGE
1 Of 16
ISSUE E
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 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 (125 and 4125) and used to
indicate either an unmounted pump or mounted pump unit.
Introduction . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Information. . . . . . . . . . . . . . . . . . . . 2
Special Information . . . . . . . . . . . . . . . . . . . 3
Maintenance . . . . . . . . . . . . . . . . . . . . . . 3
Packed Pumps . . . . . . . . . . . . . . . . . . . . . 4
Mechanical Seal Pumps . . . . . . . . . . . . . . . . 7
Standard Rubber Bellows Type
(Sizes G, H, HL, K, KK, L, LQ & LL) . . . . . . . .
8
Optional PTFE Seal . . . . . . . . . . . . . . . . . 10
Standard Rubber Bellows Type
(Sizes AK & AL) . . . . . . . . . . . . . . . . . . .
13
Thrust Bearing Adjustment . . . . . . . . . . . . . . . 14
Installation of Carbon Graphite Bushings . . . . . . . . 14
Pressure Relief Valve Instructions . . . . . . . . . . 15
UNMOUNTED PUMP UNITS
PACKED MECH. SEAL
G125 G4125
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
H125 H4125
HL125 HL4125
AK125 AK4125
AL125 AL4125
K125 K4125
KK125 KK4125
L125 L4125
LQ125 LQ4125
LL125 LL4125
This manual deals only with Series 125 and 4125 Heavy
Duty Bracket Mounted Pumps. Refer to Figures 1 through
19 for general configuration and nomenclature used in this
manual. Pump specifications and recommendations are
listed in Catalog Section 141, Series 125 and 4125 Heavy
Duty Bracket Mounted Pumps.
FIgURE 3
Sizes K, KK and L
FIgURE 1
Sizes g, H and HL
FIgURE 4
Sizes LQ and LL
FIgURE 2
Sizes AK and AL
Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com
HEAVY-DUTY BRACKET MOUNTED PUMPS
SERIES 125 AND 4125
SIZES g-LL