MTH Pumps - Support Page
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MTH Pumps - Product Support

There are many forms of support available to current users of our products. For installation, operation, maintenance, basic troubleshooting, and maintenance questions please download one of our Pump Manuals listed below. If one of these manuals does not answer your question, please contact your Representative or Distributor (who often has knowledge of both your application and the pump) and they will assist you or get the proper assistance for you.

Repair kits are available for quick shipment for onsite maintenance by a mechanically inclined customer (see pump manual), or by arrangement with your local distributor office in many cases. For more complete failure analysis, major rebuilds, or when trained repair personnel are unavailable, please consider a factory Product Return for Repair.

General Sizing Procedure: «Click here to learn how to read a our pump curves.

Pump Model Identification: «Click here to learn how identify your pump.

Relief Valve Sizing: «Click here to learn how to correctly size a relief valve for your pump.

Motor Information: «Click here to see motor specs & dimensions.

Product Return/Repair Information: «Click here for product return and repair information.

Warranty Information: «Click here to see our standard product warranty information.

P31, T31, E•T Series, 100•200 Series, M•L Series, C Series, D Series, X Series, Motor Information and Support, Manuales Traducidos Españoles, Product Return Repair Information

Information Last Updated 11/03/08

P31 Series Support

T31 Pump Manual Standard Parts Listings

P31 Series Pumps
872 KB

Not available at this time.

T31 Series Support

T31 Pump Manual Standard Parts Listings

T31 Series Pumps
1.06 MB

Manufacturing Part Number Listings

E41 • T41 Series Support

T41 Pump Manual Standard Parts Listings

T41 Series Pumps
1.24 MB

Manufacturing Part Number Listings

E51 • T51 Series Support

T51 Pump Manual Standard Parts Listings

T51 Series Pumps
2.45 MB

Manufacturing Part Number Listings

140 • 180 • 240 • 280 Series Support

150 • 160 • 170 • 250 • 260 • 270 Series Support

150•;160•;170 250•;260•;270 Pump Manual Standard Parts Listings

150•160•170 Series Pumps
598 KB

250•260•270 Series Pumps
933 KB

Not available at this time.

M50 • L50 Series Support

M50 & L50 Pump Manual Standard Parts Listings

M50 & L50 Series Pumps
1.54 MB

Not available at this time.

C41 • C51 • C61 Series Support

C41 Pump Manual Standard Parts Listings

C Series Centrifugal Pumps
752 KB

Not available at this time.

DC10 Washdown 12 Volt Pump Support

C41 Pump Manual Standard Parts Listings

DC10 Washdown 12 Volt Pump
437 KB

Not available at this time.

D51 • D61 • D71 • D91 Series Support

Pump Manual Standard Parts Listings

D51CD Manual (486KB)
D51DM Manual (593KB)
D61DE Manual (390KB)
D71DE Manual (772KB)
D91EF Manual(510KB)

Not available at this time.

X Series Support


NOTE: Check back if the requested manual is not yet available.

If you do not have the Adobe Acrobat Reader, click here Click here to go to Adobe and download Acrobatto download the most recent version from Adobe, then make your selection.

Standard Motor Information and Support

Motor Type
Primary Uses
Horizontal Rigid Base Motors

Flex Coupled Pumps

36 Frame C-Face Motor

P31 Series Pumps

80/42 Frame D3 (Dual Faced) Style Motors

C Series
E Series
T31 Series

56C Frame C3 Style Motors

T41 Series
T51 Series

C15 Motor

T41 Series
T51 Series

Manuales Traducidos Españoles

Bombas De la Serie T31(624 KB)
(.5 - 10 GPM up to 300 Feet)
Bombas De la Serie E41 • T41 (867 KB)
(1 - 24 GPM up to 600 Feet)
Bombas De la Serie E51 • T51 (863 KB)
(1 - 40 GPM up to 700 Feet)
140•;180 240•;280
Bombas De la Serie 140•180 (652 KB)
Bombas De la Serie 240•280 (676 KB)
(1 - 60 GPM up to 800 Feet)
150•;160•;170 250•;260•;270
Bombas De la Serie 150•160•170 (662 KB)
Bombas De la Serie 250•260•270 (683 KB)
(5 - 150 GPM up to 1150 Feet)
M50 & L50
Bombas De la Serie M50 & L50 (1.53 MB)

(1 - 40 GPM up to 2300 Feet)
Bombas De la Serie C (249 KB)
(10 - 100 GPM up to 140 Feet)

Product Returns for Repair

In the event that a product return for factory repair is indicated, your Representative or Distributor can arrange this for you and explain the returns procedure. Please consult your product manual for details on warranty limitations and status. For product returns, please be prepared to answer questions about the pump serial#, (see the "How to Identify your Pump" page) application details (fluid mix, pressure, capacity, temperature, duty cycle, etc.), and any other symptoms and indications that might help us determine the root cause of the problem, and avoid it in the future. If you require complete failure analysis, please return the pump in an assembled and unaltered condition. The actual disassembly process often gives indications of failure modes so this is very important to consider. In some circumstances, customer disassembly may void your warranty.

Also be aware that for the safety of our personnel, and to meet OSHA requirements, we require a disclosure of the composition of the fluids pumped before an RMA authorization will be issued. The customer is then required to send an MSDS sheet in advance (or on the outside of the pump return packaging), and then thoroughly flush the unit if the fluid is anything other than clean water or ethylene glycol.

Product returns will generally be processed within a few days of receipt and a faxed advisement will be sent with our findings and recommendations. Expedited return and repair may be arranged upon special request. To request an RGA (Return Goods Authorization) number, please click here to submit a request.

Limited Warranty

All requests for warranty claims should be made through the company from which the product was purchased or supplied. Complete details on what is wrong with the product must be provided along with information on the system in which it is installed. Refer to the MTH Pumps Limited Warranty statement below for more information. Return authorization must be obtained prior to returning any equipment.

MTH Tool Company, Inc. / MTH Pumps, hereinafter referred to as "MTH", warrants for a period of twelve (12) months from the date of shipment ("The Warranty Period"), that the products manufactured by it will be free from defects in material and workmanship. MTH will correct defects in material or workmanship which may develop in its products under proper or normal use during the Warranty Period and under the conditions of this Warranty. This Warranty does not extend to anyone except the original consumer-purchaser. Damage to the product due to improper handling, improper storage, improper maintenance, or improper application is not covered by this Warranty. Warranty claims for special order items or accessories not manufactured by MTH (such as motors, valves, or mechanical seals) should be directed to those who manufactured the item. MTH will repair or replace, at its option and expense, its products proved to be defective after examination by an authorized representative of MTH. The defective Product must be returned, transportation prepaid, to the factory at Plano, Illinois, USA. Disassembly of the product (especially pumps) impairs determination of reasons for failure and shall be cause for voiding this Warranty. The Product, repaired or replaced, will be shipped F.O.B. MTH's factory. This is MTH's sole warranty. MTH makes no other warranty of any kind, express or implied, and all implied warranties of merchantability and fitness for a particular purpose which exceed MTH's aforestated obligations are hereby disclaimed by MTH and excluded from this warranty. MTH neither assumes nor authorizes any person to assume for it, any other obligation in connection with the sale of the Product and any enlargement of this Warranty by a purchaser shall be for its own account and its exclusive responsibility. This Warranty shall not apply to any Product or parts of Products which: (a) have been repaired, assembled, or altered outside of MTH's factory, in any manner; or (b) have been subjected to misuse, negligence or accident; or (c) have been used in a manner inconsistent with MTH's printed instructions, specifications, or the customer supplied application specification; or (d) have been damaged due to defective power supply or faulty installation. MTH shall not be liable for incidental and consequential losses and damages under this express warranty, any applicable implied warranty, or claims for negligence, except to the extent that this limitation is found to be unenforceable under the applicable State law. Some States do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights, which vary from State to State. Home, Find a Pump Type, Find Your Application, Standard Products, How to Buy Our Pumps,
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