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DARLEY HEF Operating Instructions Manual

Dolphin float pump
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OPERATING INSTRUCTIONS

HEF DOLPHIN FLOAT PUMP
Corporate Office:
325 Spring Lake Drive
Itasca, Illinois 60143-2072
800-323-0244, fax (708) 345-8993
This manual is for DARLEY FIRE PUMP:
Model: HEF Pump Serial Number: ________
Pump Manufacturing:
1051 Palmer St.
Chippewa Falls, WI 54729
800-634-7812, Fax (715) 726-2656
WWW.DARLEY.COM
Apparatus Division:
920 Kurth Rd.
Chippewa Falls, WI 54729
800-527-0068, Fax 726-2648

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Summary of Contents for DARLEY HEF

  • Page 1: Operating Instructions

    1051 Palmer St. 920 Kurth Rd. Itasca, Illinois 60143-2072 Chippewa Falls, WI 54729 Chippewa Falls, WI 54729 800-323-0244, fax (708) 345-8993 800-634-7812, Fax (715) 726-2656 800-527-0068, Fax 726-2648 WWW.DARLEY.COM This manual is for DARLEY FIRE PUMP: Model: HEF Pump Serial Number: ________...
  • Page 3 Introduction This manual provides information for the use and understanding of this manual, correct operation, maintenance, troubleshooting of the Darley HEF Dolphin Float Pump, definition of terms, and contacts. Please read and understand these instructions thoroughly before putting this system into service. Doing so will ensure optimum performance and long life of your Darley Floating Pump.
  • Page 4 Section 1 Definition of Symbols Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 5 - Signifies a potentially hazardous situation that might result in property damage. Intentionally ignoring any of these identified hazards is not recommended. W.S. Darley does not advise such actions or take responsibility for the actions of any operator of this unit. Prepared by: RJG Rev.
  • Page 6 Section 2 Operation Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 7  Do not run the pump dry or at high speed unless it is placed in water of adequate depth.  Connect the discharge hose to the pump.  Ensure the discharge breather check valve; located near the Darley emblem on the float; is working, clean and clear of debris.  Start the engine.
  • Page 8 Section 3 Maintenance (Assembly/Disassembly) Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...

  • Page 9: Pump Disassembly

    PUMP DISASSEMBLY Drawing DHC1204 For pump overhaul or disassembly follow the corresponding steps  Drain oil and gas from engine, ensuring there is no fuel in the tank or lines. o There may be small residual amounts of oil remaining in the engine (up to 8 ounces), which may read at the very end of the dipstick (see photo below).
  • Page 10  Inspect and replace worn or damaged parts. If you are unsure if a part is damaged or worn contact Darley Customer Service or Engineering for assistance. If seal rings need to be replaced it is STRONGLY recommended to send the pump unit back to Darley for removal and re-placement.
  • Page 11  Lightly oil the inside diameter of the pilot bushing, and re-attach the pump casing to the engine (see photo below).  Ensure that the engine is laying with the exhaust facing down. FINGER TIGHTEN fasteners between the pump casing and the engine evenly in an alternating opposite corner pattern to prevent cocking of the pump assembly in relation to the engine (see photo below).
  • Page 12  Slide the impeller onto the shaft, being careful not to roll the lips of the mechanical seal backwards.  Install the impeller washer and 7/16-20 x 1.00 lg. SST HHCS with a small drop of Loctite 242/243 (Blue) thread locker to hold the impeller in place. Ensure that the spark plug is removed from the engine and a clean rope is in its place.
  • Page 13  Tighten the four fasteners that hold the pump assembly to the engine evenly in an alternating opposite corner pattern to prevent cocking of the pump assembly in relation to the engine (see photo below). DO NOT OVERTIGHTEN.  Pull the recoil rope two or three times again, to ensure that the pump assembly and engine are aligned.
  • Page 14  Install the discharge pipe to the pump casing discharge nipple using Loctite 242/243 (Blue) thread locker.  Using three flat washers, lock washers, and 5/16 x 0.75 lg HHCS, fasten the mounting plate to the float. DO NOT OVER TIGHTEN. DO NOT USE THREAD LOCKER.
  • Page 15 Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 16 Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 17 Section 4 Components Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 18  The float for this unit is foam filled to assist in buoyancy.  The pump casing is hard anodized aluminum.  The impeller is manufactured from bronze. It is ground and dynamically balanced for maximum performance.  The suction head is anodized aluminum. ...

  • Page 19: Maintenance Schedule

    Section 5 Maintenance Schedule Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 20 IMPORTANT Check your engine instruction manual for recommended maintenance schedule. Darley recommends flushing the pump and minor disassembly inspections if the pump is not performing as intended. Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev.

  • Page 21: Troubleshooting

    Section 6 Troubleshooting Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 22 Pump does not make advertised performance anymore.  The mechanical seal may be damaged and this is reducing the flow and/or pressure of the pump unit.  The seal rings may be damaged due to pumping dirty or salt water. ...
  • Page 23 Section 7 Definition of Terms and Operating Characteristics of Pumps Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 24 DEFINITIONS HEAD OF WATER -- vertical depth of water measured in feet or in pressure per unit or area. In hydraulics, head always represents pressure and it is expressed interchangeably in feet of water or pounds per square inch and sometimes in inches of depth of mercury.
  • Page 25 WATER HAMMER -- a series of shock waves produced in a pipeline or pump by a sudden change in water velocity. A sudden change in flow velocity can result from rapid closure of valves. A pressure wave is set up which travels back and forth in the water column at extremely high speed producing rapid vibrations that may be violent and destructive if the water column is long.
  • Page 26 Slip is the greatest factor affecting efficiency of a displacement pump, and this factor is greatly influenced by the condition of and wears on the working parts. Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev.
  • Page 27 Section 8 Contacts Prepared by: RJG Rev. A Approved by: TED Date: 03/04/10 Revised by: TED Rev. Date: 30June2015 1200627.doc...
  • Page 28 Fax: (715) 726-2656 Briggs and Stratton Visit www.briggsandstratton.com and find a dealer near you for technical support, or contact the Darley Company and we can help or direct your call as needed. Prepared by: RJG Rev. A Approved by: TED...