macnaught EOP25L 240V Electric Oil Pumps Instruction Manual

macnaught EOP25L 240V Electric Oil Pumps

Product Information

Specifications

• Model: EOP25L, EOP50L
• Power Supply: 240V AC, Single-phase or three-phase
• Pump Type: Volumetric self-priming rotary vane electric pump
• Motor: Single-phase asynchronous motor, 2-pole, closed (protection class IP55 in compliance with Standard EN60034-5-86), self-ventilating, directly flanged to the pump body
• Operating Conditions:
  • Relative Humidity: Maximum 90%
  • Temperature Limits: Refer to the components making up the pump
• Allowed Fluids: Clean fluids (Do not use on waste oil)
• Forbidden Fluids: Petrol, flammable liquids, food liquids with viscosity >500 cSt, corrosive chemicals, water

Product Usage Instructions

Safety Information

Important:
Read and retain this instruction manual for safe operation and maintenance of the product.

• Macnaught recommends the use of personal protective equipment (PPE) such as safety glasses, protective gloves, and safety shoes before handling or using this product.
• Do not modify or alter the product in any way.
• Clean up any fluid spillage immediately to prevent slipping or injury.
• Only use this product in a safe environment, away from heat, fire, or explosive atmospheres.
• Only use genuine Macnaught replacement parts when repairing the product.
• Ensure the pump is only used with clean fluids and not waste oil.

Unpacking New Pump
Follow these steps to unpack the new pump:

1. Open the box carefully and remove the pump.
2. Place the pump on the floor or a stable surface.
3. Check the pump for any signs of damage. Report any damage immediately.

Installation
Follow these steps to install the pump:

1. Ensure the pump is not damaged before installation.
2. Remove any remaining packaging material and clean the suction and discharge outlets.
3. Choose a suitable location for the pump, either a horizontal or vertical position.
4. Place the pump in a sheltered location away from rain and weather events.
5. Position and fix the pump with screws that are appropriately sized for the holes on the motor flange.

Note:
For optimal noise and vibration reduction, use four vibration dampers of suitable height between the pump and the base.

CAUTION:
The motors are not explosion-proof. Do not install them in areas with flammable vapors or open flames.

FAQ (Frequently Asked Questions)

• Q: What type of fluids can I use with these pumps?
  A: These pumps are designed for use with clean fluids. Do not use them with waste oil or any forbidden fluids such as petrol, flammable liquids, food liquids with viscosity greater than 500 cSt, corrosive chemicals, or water.

• Q: Can I modify or alter the pump?
  A: No, it is important not to modify or alter the pump in any way as it may cause damage or malfunction.

• Q: Are the motors explosion-proof?
  A: No, the motors are not explosion-proof. They must not be installed in areas with flammable vapors or open flames.

• Q: What should I do if I find any damage during unpacking?
  A: If you find any damage on the unpacking, it must be reported immediately to the manufacturer or supplier.

INTRODUCTION

• The Macnaught Electic 240V Oil Pumps are de-signed to reliably transfer oil.
• The pumps are supplied with a 2m long power cord and plug.

CAUTION

Important Information
PLEASE READ THIS SAFETY INFORMATION CAREFULLY BEFORE USE.

• Read and retain this instruction manual to assist you in the operation and maintenance of this product.
• CAUTIONS’ are listed throughout this manual to advise of actions which may cause damage to your equipment.

Description

The pump is made up of the following parts:

• PUMP – volumetric self-priming rotary vane electric pump fitted with a bypass valve.
• MOTOR – Single-phase asynchronous motor, 2-pole, closed (protection class IP55 in compliance with
• Standard EN60034-5-86), self-ventilating, directly flanged to the pump body

Safety Information

• Macnaught recommends the use of PPE equipment such as safety glasses, protective gloves, safety shoes etc before handling or using this product.
• Do not modify or alter this product any way
• Ensure that any fluid spillage is cleaned up immediately to prevent slipping or injury.
• Only use this product in a safe environment, away from heat, fire or explosive atmospheres etc
• Only use genuine Macnaught replacement parts when repairing this product
• Only use this pump with clean fluid
  Note: Do not use on waste oil

Pump Legend Plate Information

Batch of

Model
Description
Technical specifications
Weight

OPERATING CONDITIONS

• Temperature min. +10°C / max. +60°C
• Relative humidity (*) max. 90%

Caution!
The temperature limits show refer to the components making up the pump and should be respected to prevent any damages or malfunction from occurring.

Power Supply
Depending on the model, the pump must be powered by the single-phase or three- phase AC line whose values are given in the table in section 2.3 – Technical specifications. Powering the pump with values outside these limits can damage the electrical components or cause them to malfunction. The maximum power supply variations allowed are: Voltage: +/- 5% of the nominal value Frequency: +/- 2% of the nominal value The motors are designed the operating cycle of 30min on / 30 min off

Allowed Fluids / Forbidden Fluids

• ALLOWED FLUIDS – OIL with a viscosity up from 50 cSt up to 500 cSt (Minimum flash point (MF): 55 °C)
• FORBIDDEN FLUIDS – Petrol, flammable liquids (MF <55°C), solvents, liquids with > 500 cSt viscosity food liquids, corrosive chemicals, water

UNPACKING NEW PUMP

• Carefully open the box, remove the pump, and place it on the floor or on a stable surface.
• Check the pump and any signs of damage.
• Note: any damage found on unpacking products must be reported immediately.

INSTALLATION

1. Ensure the pump is not damaged.

2. Remove any remaining packaging material from the product (e.g. protective caps) and carefully clean the suction and discharge outlets.

3. Install the pump in either a horizontal or vertical position.

4. Place the pump in a sheltered location away from rain and weather events.

5. Position and fix the pump with screws that are suitably sized for the holes on the motor flange.
   Note:
   The best performance in terms of noise and vibration reduction is achieved by placing 4 vibration dampers of suitable height between the pump and the base.
   CAUTION
   The motors are not explosion-proof. They must not be installed in areas with flammable vapours or open flames

6. Before connecting the pump, make sure the tank, fittings, and pipes used are clean and free from waste or processing residues.

7. Before connecting the discharge pipe to the pump, we recommend partially filling the pump body with diesel fuel to lubricate and facilitate the priming procedure.

CAUTION

• Do not use tapered fittings as overtightening damages the pump outlets.
• Do not over-tighten connections

WARNING
The pump is not equipped with an internal suction filter, it is necessary to use the use of a suction filter with a maximum mesh of 800 µm to prevent foreign bodies from damaging the pump.

Suction line

CAUTION
Only use this pump with NEW fluid.

If pumping Diesel, a mesh strainer MUST be installed in the suction line

• These self-priming pumps are capable of sucking up the liquid through a 1” I/D diameter suction hose to a maximum height of 2 meters.
• The correct priming time required to be carried out can be influenced by the presence of a delivery gun, which prevents the normal evacuation of air from the tube.
• It is always advisable to carry out the first priming operation without a gun
• When the system is running, the pump can work with a pressure restriction in the suction port up to 0.7 Bar, after which cavitation can begin, with a consequent decrease in the flow rate and an increase in noise.
• To avoid this phenomenon, it is important to ensure no restriction in the suction line.
• Only use suction filters with a large section and foot valves with the minimum possible resistance, the filter should be kept clean to avoid damage.

Delivery line

• The delivery line should be at least 3/4” I/D.
• Note: The incorrect combination of pipe length, diameter, and accessories can create excess pressure loss which can affect pump performance.
• To prevent this, the system resistance has to be reduced using shorter pipes and/ or with a larger diameter and line and using accessories with less resistance (e.g. an automatic nozzle for greater flow rates).

ELECTRICAL CONNECTION

• The pumps are supplied complete with a 2 m long cable. and plug.
• Any electrical repairs must be carried out by a licensed electrician.
• Single-phase motors are equipped with a phase capacitor and bipolar switch.

ELECTRICAL MAINTENANCE

For installation and electrical maintenance of the pump, please follow these instructions:

• During the installation and maintenance of the pump, turn off and disconnect the plug from the power source.
• Use only cables with the minimum section, rated voltages, and type of laying appropriate to the characteristics of the system  always connect the pump earth terminal to the net-work earth
• The pumps are supplied complete with a 2 m long cable. and plug.
• Any electrical installation or repairs must be carried out by a licensed electrician.
• Single-phase motors are equipped with a phase capacitor and bipolar switch.

CAUTION

• The pumps are supplied without safety equipment such as fuses, motor protectors, and systems against accidental restarting after periods of power failure.
  The sole function of the pump switch function is to start and stop the pump.

OPERATION

Before starting the pump, check that all pipes and components in the system are in good condition and are properly sealed, and the nozzle is closed,

WARNING

• Do not leave the pump unattended during use
• Do not start the pump before connecting the suction and delivery pipes.
• Do not start or stop the pump by inserting or removing the plug.
• The use of PPE equipment such as glasses and gloves is mandatory.
• The motor is protected Single-phase with a motor protector which protects against accidental restarting
• In the event of a power failure, turn off the pump and unplug it before resetting it.

In extreme conditions for the pump can cause the temperature rise of the motor and its consequent stop by the thermal protection. Turn off the pump switch and wait for it to cool down before resuming the intended use. The thermal protection switches off automatically when the engine has cooled down sufficiently.

CAUTION

• When first priming the pump air will need to be purged from the lines.
• To purge the lines, make sure the nozzle or the discharge outlet is open. If an automatic nozzle is installed on the discharge line, it is recommended to temporarily remove it during the first start-up.

DAILY USE

• Before use, check pump hoses and fittings for any signs of wear or damage and replace as required.
• Before turning the pump on, make sure the nozzle or valve is closed.
• The pump can remain in bypass (internal circulation) for a maximum of 1-2 minutes
• With the pump in bypass, open the nozzle or valve to start dispensing
• When you have finished dispensing, close the valve or nozzle and switch the pump off.

MAINTENANCE

CAUTION

• Make sure the pump is disconnected from the power supply before carrying out maintenance
• The pump is designed to minimize routine maintenance. It is the operator’s responsibility to assess the pump’s condition and suitability for use.
• Any electrical maintenance should be carried ot by a licensed electrician.

WIRING DIAGRAM

PARTS LIST

PARTS DIAGRAM

OEP25L

OEP50L

PARTS DIAGRAM

TROUBLESHOOTING GUIDE

and the safety devices
The circuit breaker has tripped| Use the electric pump in the recommended operating conditions and according to its intended use (chap. 2 – chap. 5)
Impeller blocked| Make sure there are no obstructions in the pump body or along the suction and discharge lines
Defective motor| Contact the dealer (fault code M1)
PUMP IS VERY NOISY| Cavitation| Reduce the negative suction pressure
Make sure there are no leaks or restrictions on the suction part (recommended pipes chap. 5.2)
Air in the hydraulic circuit| Make sure there are no suction leaks
Dispense to bleed the air from the circuit
LIQUID LEAK| Clamps loosened| Make sure all clamps are properly tightened
Gaskets worn| Replace the worn gaskets
Non-compatible liquids used| Check the compatibility of the fluid used (chap. 3.3)
Shaft seal ring dirty or damaged| Contact the dealer (fault code A1)
LOW OR NO FLOW RATE| Low level of liquid in the tank| Fill the tank
---|---|---
Filter dirty or clogged| Clean or replace the filter
Foot valve dirty or clogged| Clean or replace the foot valve
Pipe or dispensing nozzle damaged| Replace the damaged components
Excessive negative pressure to the suction line| Make sure there are no leaks or restrictions on the suction part (recommended pipes chap. 5.2)
High pressure drops in the circuit| Change the hydraulic discharge configuration
Bypass valve open or blocked| Check the condition of the valve and clean or replace it if necessary
Vanes blocked| Check and clean the vanes and their housing
Excessive wear of the vanes or impeller| Replace the worn components
Leaks from the gaskets| Make sure the gaskets are properly tightened and not worn
Incorrect power supply voltage| Power the pump as specified on the rating plate
Operating temperature too low| At low temperatures, the viscosity of the oils increases in addition to the maximum allowed limit, use the pump in the temperature and viscosity range indicated in the manual.
Defective motor| Contact the dealer (fault code M2)

OVERALL DIMENSIONS

SPECIFICATIONS

Oil Pumps

WEEE Directive – Waste Electrical and Electronic Equipment

• The WEEE Directive requires the recycling of waste electrical and electronic equipment in the European Union.
• Whilst the WEEE Directive does not apply to some of Macnaught’s products, we support its policy and ask you to be aware of how to dispose of this product.
• The crossed-out wheelie bin symbol illustrated and found on our products signifies that this product should not be disposed of in general waste or landfill.
• Please contact your local dealer national distributor or Macnaught Technical Services for information on product disposal.

Note:
This product should be disposed of according to all applicable local and national government environment regulations and guidelines.

Warranty

• For Warranty Terms and Conditions see macnaught.com.au.
• For a list of Australian Service Centres see macnaught.com.au.

Macnaught

Head Office – Australia

Macnaught Pty Limited

• ABN 66 000 075 785 41-49 Henderson St Turella, NSW, 2005 Sydney, Australia.
• T: +61 2 9567 0401
• F: +61 2 9597 7773
• W: www.macnaught.com.au.

Macnaught USA Inc

• (North & South America) 614 South Ware Blvd. Tampa, Florida, 33619 United States.
• T: +1813 628 5506
• F: +1813 628 5506
• E: info@macnaught.com
• W: www.macnaughtusa.com.

EOP Issue 2 © 2023.

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