Frequently Asked Pump Questions

General Questions

Yes, please email us at cfparts@darley.com for quotes on Darley Pump parts. Have your pump serial number ready with a description of the parts required.

You can purchase Darley parts from your authorized dealer or the Darley factory. Please refer to your parts and service manual and contact us with any questions.

Some products have been discontinued, but depending on the date of manufacture, we may have parts in our warehouse. Please email cfparts@darley.com for questions.

Darley sells Davey pump parts. Don’t hesitate to get in touch with us at 319-987-2121

We can provide quotes for replacement items for military pumps and ship directly to your location. Please have the pump serial number and item description ready. We do not stock all components for portable engines, for engine components we recommend you find an authorized distributor.

oWe can ship worldwide via UPS, DHL, and Customer arranged freight.

We take returns on unused and undamaged components. Please contact cfparts@darley.com for authorization to return the material.

Please call us if you need assistance with any of our products.

  • Pump Factory: 715-726-2650
  • Ohler/Odin: 319-987-2121
  • Fire Equipment: 630-735-3500
  • Darley Headquarters: 800-323-0244

Search the documents delivered with the apparatus for information. All pumps have a metal tag attached to them. If the tag is missing, search the pump for a serial number stamped into it.

Examine the apparatus for any identification tags or numbers.

Yes, it is often possible to repair a Darley pump, depending on the specific issue and the age and condition of the pump. Common issues that can often be repaired include worn or damaged impellers and casings, leaking mechanical seals, and damaged bearings. If the pump is too old or the cost of repair is high, it might be more cost-effective to replace it with a new unit.

Pump Questions

If a part is not in stock, Darley will fabricate or order it from our supplier as quickly as possible.

  • Check the oil level every 25 hours or every 3 months.
  • Change the oil every 50 (pumping) hours or 6 months.

Drain the water from the pump after each use, check valves to ensure all water is drained.

Darley will need the engine specifications, transmission specifications, PTO (Power Take Off) specifications, and the information from the original pump.

Drawings can be found on the Darley website under the pump model’s name. For a drawing specific to your serial number, please contact Darley customer service cfparts@darley.com.

Model

Approximate # of Packing Pellets

A

6

2BE

6

EM

15

H

8

JM

8

KD

10

KS

8

LD

15

LS

9

P

10

U2

5

U4

10

Yes, it is often possible to repair a Darley pump, depending on the specific issue and the pump’s age and condition. Common issues that can often be repaired include worn or damaged impellers and casings, leaking mechanical seals, and damaged bearings. If the pump is too old or the repair cost is high, replacing it with a new unit might be more cost-effective.

Darley recommends replacing all:

  • Oil seals
  • O-rings
  • Flat gaskets
  • Rubber diaphragms
  • Mechanical seals
  • Hex nuts
  • Bolts
  • Screws
  • Lock-washers
  • Threaded studs
  • Flat washers
  • Snap rings
  • Cotter pins
  • Pipe plugs
  • Rubber bellows
  • V-belts
  • Synchronous belts
  • Oil filters
  • Thin shaft spacers (< .375” thick)
  • Pump shift microswitches
  • Rubber flingers
  • Drive yoke nuts
  • Primer blades
  • Shaft keys and lubricants must be removed during a pump rebuild

Darley recommends all bearings be replaced during a pump rebuild as well.

  • On a metal tag fastened to the pump housing. Serial numbers are usually five or six digits long.
  • The serial number is often stamped into the pump housing if the metal tag has been damaged or removed.

Bronze pumps are recommended for saltwater use.

  • Check the air hoses for leaks/clogs.
  • Ensure the air pressure produced is adequate to operate all functions on the apparatus.

If water has frozen inside your Darley pump, it is crucial to thaw it out before operating it. Frozen water can expand and damage the pump’s components.

Portable Pump Questions

Darley does not stock all engine components. We recommend that you visit your local authorized distributor for OEM engine parts and support.

CAFS Questions

Accessory Questions

 Yes, valves can be rebuilt with new seals and O-rings while the valve body is reused.

Yes, you can! Our primer pumps are designed to be rebuilt. If the motor is not functioning, it may need to be replaced as well.

If your panel is not communicating with your pump/engine, please visit WHAT?

Please visit shop.darley.com for the latest equipment selection.

Shipping Questions

All pumps ship from our manufacturing facilities in Chippewa Falls, WI, or Janesville, IA

We can organize the shipment to be delivered on a trailer with a liftgate. Please email or call us at 715-726-2650 with specific shipping requirements.