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Viking Pump TSM153: N-R 333/4333 User Manual

Technical service manual, Contents introduction, Special information

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VIKING PUMP, INC.

A Unit of IDEX Corporation

Cedar Falls, IA 50613 USA

TECHNICAL SERVICE MANUAL

SECTION TSM 153
PAGE

1 Of 16

ISSUE

D

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 (333 and 4333) are used to

indicate either an unmounted pump or mounted pump unit.

Introduction . . . . . . . . . . . . . . . . . . . . . . .

1

Special Information . . . . . . . . . . . . . . . . . . .

1

Maintenance . . . . . . . . . . . . . . . . . . . . . .

2

Packed Pumps . . . . . . . . . . . . . . . . . . . . .

4

Mechanical Seal Pumps . . . . . . . . . . . . . . . .

8

Optional PTFE Seal. . . . . . . . . . . . . . . . . . .

13

Thrust Bearing Adjustment . . . . . . . . . . . . . . .

14

Installation of Carbon Graphite Bushings . . . . . . . .

14

Pressure Relief Valve Instructions . . . . . . . . . .

15

UNMOUNTED PUMP

UNITS

PACKED MECH. SEAL

Units are designated by the

unmounted pump model

numbers followed by a letter(s)

indicating drive style.

P = Commercial Speed Reducer

N333

N4333

R333

R4333

This manual deals only with Series 333 and 4333 Heavy Duty

Steel External Pumps.

Refer to Figures 1 through 20 for

general configuration and nomenclature used in this manual.

Pump specifications and recommendations are listed in

Catalog Section 153, Series 333 and 4333 Heavy Duty Steel

External Pumps.

FIgURE 1

R333 SIZE SHOWN

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.

Model Chart Number

Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com

HEAVY-DUTY STEEL EXTERNAL PUMPS

SERIES 333 AND 4333

SIZES N AND R