Table of Contents
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CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . 1
Special Information . . . . . . . . . . . . . . . . . . . 3
Pressure Relief Valves . . . . . . . . . . . . . . . . . 3
Maintenance . . . . . . . . . . . . . . . . . . . . . . 3
Disassembly: Pump . . . . . . . . . . . . . . . . . . . 6
Pump Rotation . . . . . . . . . . . . . . . . . . . . . 7
Port Arrangement . . . . . . . . . . . . . . . . . . . . 7
Disassembly: MD-D Series Coupling . . . . . . . . . . 7
Bearing Housing . . . . . . . . . . . . . . . . . . . . 9
Disassembly of Bearing Housing . . . . . . . . . . 9
Assembly of Bearing Housing . . . . . . . . . . . . 9
Installation of Bushings . . . . . . . . . . . . . . . . . 9
Pump Assembly . . . . . . . . . . . . . . . . . . . . .10
Adjusting Head Gasket End Clearance . . . . . . . . 11
Assembly: D Series Coupling . . . . . . . . . . . . . 11
Troubleshooting . . . . . . . . . . . . . . . . . . . . 12
Pressure Relief Valves . . . . . . . . . . . . . . . . 12
Pressure Adjustment . . . . . . . . . . . . . . . 12
Disassembly: Relief Valve . . . . . . . . . . . . . 13
Assembly: Relief Valve . . . . . . . . . . . . . . 13
WARNING !
Persons with surgical implants of a
metallic or electronic nature should
avoid working on pump - especially the
inner magnet assembly.
fIGURE 1
LS-825 MD-D290 R
Complete Unit on Base with Viking "C" Reducer
VIKING PUMP, INC.
TECHNICAL SERVICE MANUAL
•
A Unit of IDEX Corporation
MAGNETIC DRIVE PUMPS
SERIES 823 - STEEL
825 - CAST IRON
827 - STAINLESS STEEL
SIZES LQ, LS, Q & QS
INTRODUCTION
The illustrations used in this manual are for identification
purposes only and should not be used for ordering parts.
Secure a parts list from the factory or a Viking
Always give the complete name of the part, model and serial
number of the pump when ordering repair parts. The pump
model and serial number can be found on the nameplate
secured to the pump.
In the Viking model number system, the basic size letters are
combined with series number (825, 823, or 827) indicating
basic pump construction material (cast iron, steel or stainless
steel).
MODEL NUMBER CHART
UNMOUNTED PUMP
Units are designated by the un-
LQ-825, 823, 827
mounted pump model numbers
followed by the magnetic coupling
LS-825, 823, 827
size and a letter indicating drive style:
B - Bracket Mount
Q-825, 823, 827
R - Viking Reducer Drive
P = Commercial Reducer Drive
(Example: LS-827 MD-D140 R)
QS-825, 823, 827
This manual deals only with Series 825, 823 and 827 magnetic
drive pumps and couplings. Refer to figures 1 through
21 for general configurations and nomenclature used in this
manual. Pump specifications and recommendations are listed
in Catalog Section 845.
fIGURE 2
QS-825 MD-D450 B
Bearing Carrier, footed Pump and Coupling Bracket
Jacketed Pump Bracket
•
Cedar Falls, IA 50613 USA
SECTION
TSM 845.1
PAGE
1 Of 13
ISSUE
C
®
representative.
UNITS
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Table of Contents
Related Manuals for Viking pump 823
Summary of Contents for Viking pump 823
-
Page 1: Table Of Contents
Disassembly: MD-D Series Coupling ..7 In the Viking model number system, the basic size letters are Bearing Housing ....9 combined with series number (825, 823, or 827) indicating Disassembly of Bearing Housing . - Page 2 SAfETY INfORMATION AND INSTRUCTIONS IMPROPER INSTALLATION, OPERATION OR MAINTENANCE Of PUMP MAY CAUSE SERIOUS INJURY OR DEATH AND/OR RESULT IN DAMAGE TO PUMP AND/OR OTHER EQUIPMENT. VIKING’S WARRANTY DOES NOT COVER fAILURE DUE TO IMPROPER INSTALLATION, OPERATION OR MAINTENANCE. THIS INfORMATION MUST BE fULLY READ BEfORE BEGINNING INSTALLATION, OPERATION OR MAINTENANCE Of PUMP AND MUST BE KEPT WITH PUMP.
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Page 3: Special Information
PRESSURE RELIEf VALVES: Pacemakers Metal Implants Viking pumps are positive displacement pumps and must Watches be provided with some sort of pressure protection. This Computers & discs may be a relief valve mounted directly on the pump, an... - Page 4 Apply grease to the pump or the coupling shaft Brass bar extension, if present or accessible. Viking suggests rotating the pump shaft every 30 days to circulate the oil in the pump. The coupling should be stored in a dry area. Note: if the liquid to be pumped reacts with oil, use an acceptable alternate.
- Page 5 fIGURE 5 EXPLODED VIEW – LQ & LS SIZE MAG DRIVE PUMPS ITEM DESCRIPTION ITEM DESCRIPTION ITEM DESCRIPTION Brkt Gasket - Pilot Face Locating Pin Idler & Bushing Brkt Gasket - Pilot O.D. Pipe Plugs Head Gaskets Bracket Casing Idler Pin Capscrews for Bracket Capscrew w/Orifice Head &...
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Page 6: Disassembly: Pump
See figure 5 or figure 6 on page 5 for name of DANGER ! parts. Mark the head, casing and bracket before dis- Before opening any Viking pump liquid assembly to insure proper reassembly. The idler pin, chamber (pumping chamber, reservoir, relief which is offset in pump head, must be positioned valve adjusting cap fitting etc.) Be sure:... -
Page 7: Pump Rotation
See INSTALLATION Of BUSHINGS on page 9. PUMP ROTATION Viking Mag Drive pumps are directional. If it is necessary to ® rotate in the opposite direction, the pump must be disassembled through step 7. - Page 8 Set the outer assembly with magnets down on a clean, Insert a brass bar through a port between two rotor teeth flat surface (preferably not steel) to keep from rolling and loosen the capscrew holding the inner magnet onto around. Remove temperature probe (if present). the shaft.
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Page 9: Bearing Housing
BEARING HOUSING OUTER LOCK NUT DISASSEMBLY Of BEARING HOUSING SPACER LOCK WASHER END CAP SET SCREWS (2) The bearing housing features two grease packed tapered BEARING roller bearings (TRB) along with a one-piece outer magnet OUTER BEARING HOUSING assembly with shaft. The unit may be greased externally INNER SPACER using the grease fitting. -
Page 10: Pump Assembly
Apply a lubricant to the canister O-ring and place For specific recommendations for end clearances for viscosity or for operating temperatures above 225ºF, check with your into the face groove in the bracket. Viking representative or consult the factory. fIGURE 18 SECTION TSM 845.1... -
Page 11: Adjusting Head Gasket End Clearance
ADJUSTING HEAD GASKET END ASSEMBLY: D SERIES COUPLING CLEARANCE Remove any foreign material attached to the magnets. Place key in pump shaft and slide inner magnet on shaft Use either of the following procedures to properly adjust the until it comes to rest against shoulder on shaft. Insert end clearance, when replacing gaskets. -
Page 12: Troubleshooting
TROUBLESHOOTING PRESSURE RELIEf VALVES Some of the following may help pinpoint the problem: PRESSURE ADJUSTMENT Pump does not pump: If a new spring is installed or if pressure setting of pressure • Pump has lost its prime from air leak or low level in tank. relief valve is to be changed from that which the factory has •... -
Page 13: Disassembly: Relief Valve
3. That you know what liquid the pump the use or misuse of Viking products by the purchaser, has been handling and the precautions his employees or others. Viking will assume no field necessary to safely handle the liquid.