Viking pump AS4195 User Manual

SECTION TSM 144
PAGE 1 OF 10
ISSUE F
VIKING PUMP, INC. x A Unit of IDEX Corporation x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 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 (4195 and 495) are used to
indicate either an unmounted pump or mounted pump unit.
FIGURE 1
G, GG, H, HJ and HL4195 SERIES
Foot Type Unmounted Pump with Tapped Ports
Introduction . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Information....................2
Special Information . . . . . . . . . . . . . . . . . . . 3
Special Mechanical Seals................3
Maintenance . . . . . . . . . . . . . . . . . . . . . . 3
Disassembly . . . . . . . . . . . . . . . . . . . . . . 4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 7
Thrust Bearing Adjustment . . . . . . . . . . . . . . . 8
Installation of Carbon Graphite Bushings ........8
Pressure Relief Valve Instructions . . . . . . . . . . . 9
FIGURE 2
AS, AK and AL4195 SERIES
Foot Type Unmounted Pump with Tapped Ports
FIGURE 3
G, GG, H, HJ and HL495 SERIES
Unmounted Pump with Tapped Ports
UNMOUNTED PUMP UNITS
Foot Mounted
Units are designated by the
unmounted pump model
numbers followed by a letter(s)
indicating drive style.
D = Direct Drive
G4195 HL4195
GG4195 AS4195
H4195 AK4195
HJ4195 AL4195
Flange Mounted
M = Horizontal Direct Drive
G495 HL495
GG495 AS495
H495 AK495
HJ495 AL495
This manual deals only with Series 4195 and 495 Heavy
Duty Pumps. Refer to Figures 1 through 14 for general
configuration and nomenclature used in this manual. Pump
specifications and recommendations are listed in Catalog
Section 144, Series 4195 and 495 Heavy Duty Pumps.
FIGURE 4
AS, AK and AL495 SERIES
Unmounted Pump with Tapped Ports
Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com
HEAVY-DUTY PUMPS
SERIES 4195 AND 495
SIZES G, GG, H, HJ, HL, AS, AK, AL

Viking pump AS4195 Specifications

General

Brand	Viking pump
Model	AS4195
Category	Water Pump
Language	English

Summary

Safety Information and Instructions

Symbol Legend

Explains symbols used for warnings and dangers in the manual.

General Safety Precautions

Lists critical safety rules for pump installation, operation, and maintenance.

Special Information

Rotation and Pressure Relief Valves

Details pump rotation direction and requirements for pressure relief valves.

Special Mechanical Seals

Discusses specific requirements for non-standard mechanical seals.

Disassembly Procedure

Disassembly Safety Warnings

Critical safety warnings before beginning pump disassembly.

Step-by-Step Disassembly

Outlines the sequential steps for taking the pump apart.

Pump Assembly

Standard Mechanical Seal Installation

Details the procedure for installing the standard mechanical seal.

General Assembly Guidelines

Provides instructions on cleaning parts, bearing lubrication, and shaft preparation.

Thrust Bearing Adjustment

Setting End Clearance

Explains how to adjust and set the pump's end clearance for bearings.

Installation of Carbon Graphite Bushings

Bushing Installation Precautions

Lists critical steps and warnings for installing brittle carbon graphite bushings.

Pressure Relief Valve Instructions

Pressure Relief Valve Disassembly

Step-by-step guide for taking apart the pressure relief valve.

Pressure Relief Valve Assembly

Reverse procedure for reassembling the pressure relief valve.

Pressure Adjustment

Adjusting Pressure Settings

Instructions for changing the pump's pressure relief valve setting.

Warranty Information