Viking Pump TSM211: F-G 724/4724 - Manual

SECTION TSM 211
PAGE
1 Of 8
ISSUE D
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 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. fIgURE 1 - f, fH, g SIZE
Introduction . . . . . . . . . . . . . . . . . . . . . . . 1
Special Information . . . . . . . . . . . . . . . . . . . 1
Maintenance . . . . . . . . . . . . . . . . . . . . . . 2
Disassembly . . . . . . . . . . . . . . . . . . . . . . 4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 5
Pressure Relief Valve Instructions . . . . . . . . . . . 6
UNMOUNTED PUMP UNITS
PACKED MECH. SEAL
Units are designated by the
unmounted pump model
numbers followed by a letter
indicating drive style.
D = Direct Drive
V = V-Belt Drive
F724 F4724
FH724 FH4724
G724 G4724
This maintenance bulletin deals exclusively with the bracket
mounted, Heavy-Duty, Stainless Steel Pumps. This type
of pump may be equipped with either a Multi-Ring stuffing
box with packing, called a Series 724 pump; or a Roto-Ring
mechanical seal, called a Series 4724 pump. The figure
number and letter prefix, which indicates the basic pump size,
make up the pump model.Both the packed and mechanical
seal pumps are similar in overall appearance to the pump
illustrated in figure 1.
The pump or unit model and serial number which can be
found on a nameplate attached to the pump or base, are
important means of identification when ordering repair parts
or a replacement pump.
An outstanding feature of these pumps is the integral thrust
bearing which is easily adjusted and holds the rotor in a fixed
position. This bearing is a double row angular contact ball
bearing securely locked against a shoulder on the shaft by a
locknut. Adjustment of the thrust bearing, to properly position
the rotor, will be explained at the end of this article.
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 above listed
precautionary measures may result in
serious injury or death.
Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com
HEAVY-DUTY STAINLESS STEEL PUMPS
SERIES 724 AND 4724
SIZES f - g