Viking pump 724 Series Technical & Service Manual

Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com
CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . 1
Special Information . . . . . . . . . . . . . . . . . . . 1
Safety Information. . . . . . . . . . . . . . . . . . . . 2
Maintenance . . . . . . . . . . . . . . . . . . . . . . 3
Disassembly . . . . . . . . . . . . . . . . . . . . . . 3
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 6
Pressure Relief Valve Instructions . . . . . . . . . . . 8
Warranty . . . . . . . . . . . . . . . . . . . . . . . . 9
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 the pump when ordering
repair parts.
UNMOUNTED PUMP
PACKED MECH. SEAL
H724 H4724
HL724 HL4724
K724 K4724
KK724 KK4724
L724 L4724
LQ724 LQ4724
LL724 LL4724
This bulletin deals exclusively with Series 724 and 4724
Heavy Duty Bracket Mounted Stainless Steel Pumps.
Refer to Figures 1 through 12 for general configuration and
nomenclature used in this bulletin.
fIgURE 1 - UNMOUNTED PUMP
VIKING PUMP, INC.
TECHNICAL SERVICE MANUAL
HEAVY-DUTY STAINLESS STEEL PUMPS
UNITS
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
•
A Unit of IDEX Corporation
SERIES 724 AND 4724
SIZES H - LL
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
precautionary measures may result in
serious injury or death.
ROTATION: Viking pumps operate equally well in a clockwise
or counterclockwise rotation. Shaft rotation determines which
port is suction and which is discharge. Port in area where
pumping elements (gear teeth) come out of mesh is suction
port.
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
not available with a relief valve.
•
Cedar Falls, IA 50613 USA
SECTION TSM 212
PAGE 1 Of 9
ISSUE f
above listed