Table of Contents
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TECHNICAL SERVICE MANUAL: INSTALLATION, OPERATION & MAINTENANCE
TABLE OF CONTENTS
Introduction ................................................................................1
Model Number Chart ..................................................................1
Special Information ....................................................................2
Lubrication ............................................................................ 2
Installation ..................................................................................2
Operation ...................................................................................3
Gear Ratios........................................................................... 3
Disassembly ...............................................................................3
.....................................................................4
....................................................................5
....................................................................6
Selecting The Correct Viking Helical Gear Reducer .................7
INTRODUCTION
The illustrations used in this manual are for identification
purposes only and cannot be used for ordering parts.
Obtain a parts list from your Viking Pump
When ordering parts be sure to give complete part name,
part number and the reducer part number. The reducer part
number is stamped on the nameplate.
FIGURE 1: A SIZE
PARTS & ACCESSORIES
HELICAL OFFSET GEAR REDUCERS
SIZES: A, B, C
MODEL NUMBER CHART
representative.
®
FIGURE 2: B SIZE
© 2019 Viking Pump, Inc. • Cedar Falls, IA
Size
Part Number
3-551-049-224
3-551-050-276
A
3-551-051-343
3-551-052-417
3-551-054-187
3-551-055-224
3-551-001-276
3-551-002-340
B
3-551-003-419
3-551-004-506
3-551-005-627
3-551-007-765
3-551-056-221
3-551-032-280
3-551-008-331
C
3-551-009-421
3-551-010-508
3-551-011-624
3-551-012-795
FIGURE 3: C SIZE
TSM
1984
Page
1 of 8
Issue
A
Ratio
2.24:1
2.76:1
3.43:1
4.17:1
1.87:1
2.24:1
2.76:1
3.40:1
4.19:1
5.06:1
6.27:1
7.65:1
2.21:1
2.80:1
3.31:1
4.21:1
5.08:1
6.24:1
7.95:1
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Table of Contents
Summary of Contents for Viking pump 3-551-050-276
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Page 1: Table Of Contents
The reducer part 3-551-010-508 5.08:1 number is stamped on the nameplate. 3-551-011-624 6.24:1 3-551-012-795 7.95:1 FIGURE 1: A SIZE FIGURE 2: B SIZE FIGURE 3: C SIZE © 2019 Viking Pump, Inc. • Cedar Falls, IA... -
Page 2: Special Information
⅜ PT. (6 OZ.) Use SAE 30 Above 32°F Use SAE 10W Below 32°F ½ PT. (8 OZ.) 2¼ PT. (36 OZ.) TSM 1984 | Issue A | Page 2 of 8 © 2019 Viking Pump, Inc. • Cedar Falls, IA... -
Page 3: Operation
C size reducers. Complete reducers within a size may be Failure to follow above listed precautionary measures interchanged on a Viking pump unit to obtain desired pump may result in serious injury or death. speeds and capacities. -
Page 4: Assembly (A Reducer)
Pipe Plug (Set-3) Gasket Pinion & Shaft Capscrew (Set-6) Ball Bearing (Set-4) Lip Seal (Set-2) Nut (Set-6) Gear Cover (Set-2) Dowel Pin (Set-2) TSM 1984 | Issue A | Page 4 of 8 © 2019 Viking Pump, Inc. • Cedar Falls, IA... -
Page 5: Assembly (B Reducer)
Nut (Set-7) B only Gear Snap Ring (Set-2) Dowel Pin Locating (Set-2) Lip Seal (Set-2) Gear Case Cover Gear Shaft Gear Case TSM 1984 | Issue A | Page 5 of 8 © 2019 Viking Pump, Inc. • Cedar Falls, IA... -
Page 6: Assembly (C Reducer)
Ball Bearing (Single Row) Capscrew (Set-2) Spacer Pinion and Shaft Dowel Pin Locating (Set-2) Gear Snap Ring (Set-2) Gear Case Cover Lip Seal (Set-2) TSM 1984 | Issue A | Page 6 of 8 © 2019 Viking Pump, Inc. • Cedar Falls, IA... -
Page 7: Selecting The Correct Viking Helical Gear Reducer
22.1 18.3 11.4 10.4 MAXIMUM REDUCER HP * For input speeds higher than 1750 RPM, consult your Viking Pump representative. ® TSM 1984 | Issue A | Page 7 of 8 © 2019 Viking Pump, Inc. • Cedar Falls, IA... - Page 8 Viking’s website (www.vikingpump.com/warranty/warranty-info). A complete copy of the warranty may also be obtained by contacting Viking through regular mail at Viking Pump, Inc., 406 State Street, Cedar Falls, Iowa 50613, USA. THIS WARRANTY IS AND SHALL BE VIKING’S SOLE...