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SELF-PRIMING EXTERNAL PUMPS

The All-In-One Pump

© 2023 EasyPro, Inc

Pg. 2

GENERAL WARNINGS

Please read all instructions completely before installing or operating the pump. 

Save this manual for future reference regarding installation, operation, maintenance and troubleshooting 

of this pump. Please carefully read and follow all safety instructions and procedures listed on the pump 

and in this manual.

1.  This pump and motor unit should be installed by a qualified electrician or service person in accordance 

 

with all applicable state and local codes and ordinances, and in accordance with the National Electrical  

 

Code. Improper installation may create a mechanical or electrical hazard which could cause damage 

 

to property and could result in serious injury or death. 

2.  In order to avoid serious injury or death, always disconnect power to the motor before servicing 

 

the pump and follow all instructions in this manual.

3.  Always use the schematic on the motor for all electrical connections.
4.  Never run the pump dry. The priming pot must be filled with water and lid secured before starting 

 

the motor. Running dry will void the warranty and can result in permanent damage to the pump unit.

5.  To prevent incorrect motor rotation, install a ball or swing type check valve.

 

Do not use spring check valves.

6.  Maintain a minimum flow rate of at least two gallons per minute to avoid damage to the pump unit.
7.  Visually inspect the pump and motor a minimum of once per week. If any leakage between the motor 

 

and pump housing is present, replace the mechanical seal . The seal faces wear similar to car tires 

 

and must be replaced periodically. For critical applications, replace the mechanical seal yearly. If pump 

 

is excessively noisy, shut it down and contact support.

8.  In freezing environments it is advisable to winterize your pump to prevent damage. Do not allow pump 

 

or system plumbing to freeze, as freezing can cause damage that may lead to equipment failure or 

 

possible injury and will void the warranty.

 

 Scan the QR code at the bottom of page 3 or visit www.easypro.com/exp-series-pumps for pump winterization tips.

 

PRESSURE

HAZARD

ELECTRICAL

HAZARD

BURN

HAZARD

Do not run your pump with 

discharge ports closed or blocked.  

Be sure to release system pressure 

before working on the pump.

Ground pump before connecting 

to power supply.  

Risk of shock, burn or death if not 

handled properly.

Operating motor can be very hot. 

Do not touch motor while running.  

Risk of Burn: Allow to cool 30 

minutes after shutdown before 

handling.

IMPORTANT SAFETY INSTRUCTIONS

Summary of Contents for EXP4000

Page 1: ...____________________________ SERIAL NUMBER ________________________ DATE PURCHASED _______________________ Pleasefilloutthewarrantyregistrationcardinthismanual MODEL EXP4000 EXP5500 EXP6500 EXP7500 EXP6500HP EXP9500HP Inlet 2 2 2 2 2 2 Discharge 2 2 2 2 2 2 Max Flow 4260 gph 6060 gph 6800 gph 7960 gph 6660 gph 9650 gph Max Head 17 23 25 26 54 83 Max Current 1 96 amps 115v 3 06 amps 115v 4 00 amps ...

Page 2: ...damage to the pump unit 5 To prevent incorrect motor rotation install a ball or swing type check valve Do not use spring check valves 6 Maintain a minimum flow rate of at least two gallons per minute to avoid damage to the pump unit 7 Visually inspect the pump and motor a minimum of once per week If any leakage between the motor and pump housing is present replace the mechanical seal The seal face...

Page 3: ...ctionsandtips 6 When wiring is complete double check the intake and discharge fittings to ensure a snug fit 7 Open the volute strainer pot lid and fill with water ensure the lid O ring is clean of any debris and close the lid securely prior to starting 8 Once the priming pot is filled and supply valves if present are opened your pump is now ready to prime Turn the motor on by plugging the unit in ...

Page 4: ...8 Diffuser O Ring 9 Diffuser 10 Impeller 11 Bracket Bore O Ring NUMBER DESCRIPTION 12 Bracket 13 Slinger 14 Motor Base 15 Motor 16 7 8 Hex Bolts 4 17 1 1 8 Hex Bolts 6 18 Bracket O Ring 19 Mechanical Seal 20 Diffuser Set Screws Seal Kit Includes 2 Drain Plug O Rings Lid Diffuser Bracket Bracket Bore O Rings 513 Mechanical Seal Reverse Set ScrewWasher 2 Tailpiece O Rings 1 2 3 4 5 6 7 8 9 10 11 13 ...

Page 5: ...t bore O ring Moisten bracket bore O ring with water prior to installing to prevent rolling 2 Press the seal into the bore without touching or putting pressure on the delicate carbon face by pushing on the stainless steel collar A large socket or pipe nipple may be used to facilitate installation 3 Clean as necessary the impeller hub and press in the ceramic part making sure the polished white cer...

Page 6: ... not honor any warranty but may provide a good alternative 3 If you are mechanically minded the option to order bearings and a seal kit from EasyPro Pond Products is available Cleaning the basket Seals and Bearings Thestrainerbasketinthevoluteshouldbeinspectedandcleanedatleastone 1 timeperweek moreoftenifexcessivedebris ispresentintheoperatingenvironment Pumpsealsandbearingsexperiencenormalwearand...

Page 7: ...y be tested call for details Bearing seized Rotate the motor shaft by hand to test If shaft does not freely spin replace the bearings Low flow Water flow has slowed or is intermittent Clean the filter basket of debris Check for impeller clog See the disassembly instructions or call for details Checks for leaks in the volute housing lid and union connections Check for obstructions in the plumbing a...

Page 8: ...ore a warranty claim is approved The exclusive remedies provided hereunder shall upon EasyPro s inspection and option be either repair or replacement of the Product or parts covered under this warranty Making a Claim A Return Authorization RA number must first be obtained by calling EasyPro at 800 448 3873 or via email at warranty easypro com It is the purchaser s responsibility to pay the return ...

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