Viking 855 service manual Contents, Model Number Chart, Introduction

TECHNICAL SERVICE MANUAL

SERIES 855

Sizes AS, AK, AL, KE, KKE

SECTION

PAGE

ISSUE

TSM 685.2

1 of 16

C

CONTENTS
Introduction	1
Special Information	3
Maintenance	4
Parts Identification Drawings	5-7
Disassembly of Pump	7
Disassembly of Coupling	8
Disassembly / Assembly Bearing Carrier	9-10
Installation of Bushings	10
Assembly of Pump	10-11
Pump Rotation	11
Assembly of Couplings	12
Adjusting End Clearance	13
Pressure Relief Valve Instructions	13-14
Troubleshooting	15
Warranty	16

MODEL NUMBER CHART

UNMOUNTED PUMPS	UNITS
AS-855U, AS-855M,	Units are designated by the un-
	mounted pump model numbers
	followed by the magnetic coupling
AK-855U, AK-855M	size and a letter indicating drive
	style.
	(Example: AK-855MA MD2 B50 M )
AL-855U, AL-855M
	D = Direct Drive, Base Mounted
	M = Motor, Face Mounted
KE-855U, KE-855M	B = Bearing Carrier
	R = Viking Reducer Drive
	P = Commercial Reducer Drive
KKE-855U, KKE855M	See Page 4 for complete description of
	the model number
	table 1

WARNING!

Persons with surgical implants of a metallic or electronic nature should avoid working on pump – especially the inner magnet assem- bly.

This information must be read fully before beginning any maintenance or repair of the pump. All maintenance or repair must be done by SUITABLY TRAINED or qualified persons only.

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 the complete name of the part, part number and material with the model number and serial number of the pump when ordering repair parts. The unmounted pump or pump unit model number and serial number can be found on the nameplate secured to the pump.

This manual deals only with Series 855 magnetic drive pumps. Refer to Figures 1 through 22 for general configuration and nomenclature used in this manual. Pump specifications and recommendations are listed in Catalog Section 685.

In the Viking model number system, the basic size letters (AS, AK, AE etc.) are combined with the series number (855) indicating basic pump construction material.

FIGURE 1

SERIES AK855UB MD2-32 B

Pump with Bearing Carrier

FIGURE 2

AK SERIES 855UB MD2-14 M

Pump with Motor Directly Mounted to the Bracket

VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA