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DARLEY HEF, Operating Instructions Manual

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DARLEY HEF Operating Instructions Manual Download Page 5

Prepared by: RJG 

 

Rev. A 

Approved by: TED 

 

 

Date: 03/04/10 

Revised by: TED 

 

Rev. Date: 30June2015 

 

 

1200627.doc 

 

 

IMPORTANT 

 

Throughout this manual will find Caution, Warning and Danger symbols.  
Please pay close attention to these symbols as they are for your safety. 

 

 

 

 - Signifies an imminently hazardous situation that 

could result in death or serious injury.  

 

 - Signifies a potentially hazardous situation that could 

result in death or serious injury. 

 

 - Signifies a potentially hazardous situation that 

might result in minor or moderate injury. 

 

 - 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. 

Summary of Contents for HEF

Page 1: ...n 325 Spring Lake Drive 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 2: ......

Page 3: ...ting this system into service Doing so will ensure optimum performance and long life of your Darley Floating Pump This manual is divided into eight sections each section details an important portion of this manual and pump Section 1 Definition of Symbols Section 2 Operation Section 3 Pump Assembly Disassembly Section 4 Components Section 5 Maintenance Schedule Section 6 Troubleshooting Section 7 D...

Page 4: ...Prepared by RJG Rev A Approved by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc Section 1 Definition of Symbols ...

Page 5: ...ion that could result in death or serious injury Signifies a potentially hazardous situation that could result in death or serious injury Signifies a potentially hazardous situation that might result in minor or moderate injury 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 n...

Page 6: ...Prepared by RJG Rev A Approved by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc Section 2 Operation ...

Page 7: ...e engine 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 Place float pump in the water immediately after starting This Float pump is self priming due to a flooded suction The pump w...

Page 8: ...Prepared by RJG Rev A Approved by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc Section 3 Maintenance Assembly Disassembly ...

Page 9: ...o be further drained prior to tipping the engine Remove the 3 bolts holding the support plate 6 to the float 5 Remove the pump discharge pipe from the pump discharge Remove the engine and pump by tilting the engine forward and lifting the assembly clear of the float Only tilt the engine so the exhaust faces down Titling the engine in other directions may damage the engine It may also cause fuel to...

Page 10: ...stomer 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 Personal removal and replacement of these seal rings may damage the pump casing if not done properly If you insist on personal removal contact Darley Engineering for assistance For pump re assembly follow the corresponding steps...

Page 11: ...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 Place the drive key in the engine shaft keyway Lightly oil the bore of the impeller ...

Page 12: ...ler in place Ensure that the spark plug is removed from the engine and a clean rope is in its place This will allow you to effectively tighten the impeller fastener without the engine shaft rotating Using the rubber gasket to seal the flange see photo below install the suction head on the pump casing with six 3 8 16 x 0 75 lg HHCS with a small drop of Loctite 242 243 Blue thread locker on each Rem...

Page 13: ...revent 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 If the assembly is binding or turns over hard loosen the fasteners and repeat the previous two steps Reinstall the spark plug Set the pump assembly into the float see photo below But do not fasten the ...

Page 14: ...te 30June2015 1200627 doc 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: ...Prepared by RJG Rev A Approved by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc Section 4 Components ...

Page 18: ...d dynamically balanced for maximum performance The suction head is anodized aluminum The engine is a gasoline powered Briggs and Stratton vertical shaft model The engine has a built in governor to limit the engine speed The fuel tank is plastic The fuel tank capacity is 2 8 quarts and should allow for an approximate run time of 47 minutes at full load The throttle has an integrated on off design o...

Page 19: ...Prepared by RJG Rev A Approved by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc Section 5 Maintenance Schedule ...

Page 20: ...04 10 Revised by TED Rev Date 30June2015 1200627 doc 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 ...

Page 21: ...Prepared by RJG Rev A Approved by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc Section 6 Troubleshooting ...

Page 22: ...gine takes a lot of effort to turn over with the recoil starter rope The pump mounting fasteners have loosened some the pump assembly shifted and now there is excessive side loading on the engine shaft by the pump pilot bushing Debris may be lodged in the pump causing rubbing on the impeller The engine takes excessive recoil starter rope pulls to start The engine spark plug needs to be replaced Th...

Page 23: ...Prepared by RJG Rev A Approved by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc Section 7 Definition of Terms and Operating Characteristics of Pumps ...

Page 24: ...UCTION HEAD the positive pressure measured at the suction entrance of a pump when pumping from an elevated tank or hydrant VELOCITY HEAD the equivalent pressure represented by fluid in motion as measured by means of a Pitot Gage STATIC LIFT the vertical height of the center of the pump above the source of supply when pump from draft TOTAL SUCTION LIFT the static lift plus the friction in suction l...

Page 25: ...ide range of capacities up to the maximum output of the pump if speed remains constant If the discharge outlet of a centrifugal pump is entirely shut off with speed kept constant there is a small rise in pressure the water churns in the pump casing and the power drops to a low value If the discharge is opened wide with little resistance to flow the pressure drops while the capacity and power both ...

Page 26: ...d by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc 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 ...

Page 27: ...Prepared by RJG Rev A Approved by TED Date 03 04 10 Revised by TED Rev Date 30June2015 1200627 doc Section 8 Contacts ...

Page 28: ... Phone 800 323 0244 Fax 708 345 8993 Apparatus Division 920 Kurth Rd Chippewa Falls WI 54729 Phone 800 527 0068 Fax 715 726 2648 Pump Manufacturing 1051 Palmer St Chippewa Falls WI 54729 Phone 800 634 7812 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 ...

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