Table of Contents
Advertisement
Quick Links
Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com
CONTENTS
Introduction .............................................................................1
Model Number System ...........................................................1
Model Number Chart ...............................................................1
Safety Information & Instructions ............................................2
Installation ...............................................................................3
Maintenance ............................................................................5
Repair Parts ............................................................................5
Cartridge Mechanical Seal in GP-414 Pumps ........................6
Seal Removal ......................................................................6
Seal Installation ...................................................................6
Troubleshooting ......................................................................7
Do's & Don'ts ..........................................................................8
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 are on the nameplate.
This
manual
deals
only
External Gear Pumps. Refer to Figures 1 through 5
for general configuration and nomenclature used in this
manual. Contact factory for pump specifications and
recommendations.
MODEL NUMBER SYSTEM
G P - 4 2 5 2 5 - N 0 O
External Gear
Principle
Pump
VIKING PUMP, INC.
TECHNICAL SERVICE MANUAL
with
Series
GP-425
Shaft Seal:
4 = Mechanical
Seal
Gear O.D.:
"25"
•
A Unit of IDEX Corporation
EXTERNAL GEAR PUMPS
SERIES GP-425
MODEL NUMBER CHART
UNMOUNTED PUMP
MECH. SEAL
GP-42525-N0O
GP-42525-N1O
GP-42550-N0O
GP-42550-N1O
GP-42575-N0O
GP-42575-N1O
Pump Size:
25
50
75
Design Series:
N = Cartridge Mech Seal
•
Cedar Falls, IA 50613 USA
SECTION
TSM 340.3
PAGE
1 OF 8
ISSUE
A
UNITS
Units are designated by
the unmounted pump
model numbers followed
by a letter(s) indicating
drive style.
D = Direct Drive
Shaft Rotation:
0 = Clockwise
1 = Counter-Clockwise
Relief Valve:
O = No Relief Valve
Advertisement
Table of Contents
Related Manuals for Viking pump GP-425 SERIES
Summary of Contents for Viking pump GP-425 SERIES
-
Page 1: Table Of Contents
Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com TECHNICAL SERVICE MANUAL SECTION TSM 340.3 PAGE 1 OF 8 EXTERNAL GEAR PUMPS ISSUE SERIES GP-425 CONTENTS MODEL NUMBER CHART Introduction ................1... -
Page 2: Safety Information & Instructions
For weight of the pump alone (which does not include started while work is being done on the pump. the drive and/or base plate) refer to the Viking Pump ● You know what material the pump has been product catalog. -
Page 3: Installation
DANGER ! The following items must be considered prior to pump installation: Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting 1. Location - locate the pump as close as possible to cap fitting, etc.) be sure: supply of liquid being pumped. - Page 4 10. The above checklist is a general guideline to be used no air or liquid pockets will be formed. Air pockets in the prior to starting the pump. Since Viking Pump cannot suction line make it hard for the pump to prime.
-
Page 5: Maintenance
START UP and DO NOT PLACE read through the TROUBLESHOOTING guide and try again. FINGERS HERE If pump still will not deliver liquid, contact your Viking Pump supplier. MAINTENANCE Series GP-425 pumps are designed for long, trouble-free service life under a wide variety of application conditions with a minimum of maintenance. -
Page 6: Cartridge Mechanical Seal In Gp-414 Pumps
ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART Bracket O-Rings Gear Set Bearing Housing Assembly Driver Shaft Studs Locknut Driven Shaft Seal Nuts Lock Washer Gear Pin (Driven Gear) Lock Washers Set Screws Gear Pin (Driver Gear) Flat Washers Mechanical Seal Alignment Pins... -
Page 7: Troubleshooting
1. The pump has lost its prime from air leak or low level in tank. TROUBLESHOOTING 2. The suction lift is too high. A Viking pump that is properly installed and maintained will 3. Rotating in the wrong direction. give long satisfactory performance. 4. The motor does not come up to speed. -
Page 8: Do's & Don'ts
5. DO a double check of alignment after unit is mounted Viking through regular mail at Viking Pump, Inc., 406 State and piping has been connected to the pump. Street, Cedar Falls, Iowa 50613, USA.