Clarke DFT12A Instruction Manual

OPERATION & MAINTENANCE

INSTRUCTIONS

ORIGINAL INSTRUCTIONS GC0819 iSSUE 5

12&24V DIESEL FUEL TRANSFER PUMPS

MODEL NO: DFT12A & DFT24A

PART NO: 7160042 & 7160047

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

INTRODUCTION

Thank you for purchasing this CLARKE Pump.

The DFT12 & 24 pumps are designed only for use with diesel, paraffin and light

fuel oils and can be connected to vehicle batteries of either 12 or 24 Volts

respectively. They must not be used with water, petroleum fuels or alcohol, nor

if small solids are known to be in suspension.

Before attempting to use this product, please read this manual thoroughly and

follow the instructions carefully. In doing so you will ensure the safety of yourself

and that of others around you, and you can look forward to your purchase

giving you long and satisfactory service.

SPECIFICATIONS

Please note that the details and specifications contained herein, are correct

at the time of going to print. However, CLARKE International reserve the right

to change specifications at any time without prior notice.

Fluid Classification / Fluids to be used Clean (light fuel oil, paraffin & diesel)

Rated Max. Head (suction height) 6 m

Rated Max. Flowrate 40 litres/min (diesel)

Max. Operating Temperature 10-70oC

Max Liquid temperature 40oC

Duty Cycle 30 mins on/ 30 mins off

Weight 9.0 kg (complete kit)

Inlet & Outlet Hose Diameter 3/4” BSP nominal

Motor Voltage 12V DC (DFT12A) or 24VDC (DFT24A)

IP Rating IP54

Reserve polarity protection Yes

Sound pressure level 65 db LpA

Suction/Delivery Hose Lengths 2 m

Supply Cable lengths 2 m

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

SAFETY PRECAUTIONS

Please read all of the safety and operating instructions carefully before using

this product. Keep these instructions in a safe place for future reference.

WORK AREA

1. Keep the work area clean and well lit. Cluttered and dark areas invite

accidents.

2. Do not operate power products in explosive atmospheres such as in the

presence of flammable liquids, gasses or dust. Power products create

sparks which may ignite dust or fumes.

ELECTRICAL SAFETY

1. Do not abuse the electrical cables. Keep the cables away from hot

surfaces, oil, sharp edges or moving parts. Damaged or tangled cables

increase the risk of electric shock.

PUMP SAFETY

1. Do not use this pump where there is a danger of fire.

2. Do not use to pump any liquid other than diesel, paraffin and light fuel oil.

3. Always ensure the ON/OFF switch is in the OFF (O) position, BEFORE

connecting to the battery. This is to avoid the possibility of arcing taking

place, thereby reducing the risk of fire.

4. Both models incorporate reverse polarity protection in case of incorrect

connection.

5. Switch the pump OFF as soon as the task is complete.

6. Do not exceed the duty cycle stated in the specifications.

7. Do not use the pump if the switch does not turn it on and off. Any power

product that cannot be controlled with the switch is dangerous and must

be repaired.

8. If necessary, have your pump repaired by a qualified person using

identical replacement parts. This will ensure that the safety of the product is

maintained.

ENVIRONMENTAL PROTECTION

1. Take care to ensure that if diesel fuel is spilt that it is cleaned away using

sand or treated with absorbent granules designed for the purpose.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

2. Always make every effort to contain any spillage and prevent ingress into

the local water course.

ENVIRONMENTAL RECYCLING POLICY

Through purchase of this product, the customer is taking on the

obligation to deal with the WEEE in accordance with the WEEE

regulations in relation to the treatment, recycling & recovery and

environmentally sound disposal of the WEEE.

In effect, this means that this product must not be disposed of with general

household waste. It must be disposed of according to the laws governing

Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal

facility.

GUARANTEE

This CLARKE product is guaranteed against faulty manufacture for a period of

12 months from the date of purchase. Please keep your receipt as proof of

purchase.

This guarantee is invalid if the product is found to have been abused or

tampered with in any way, or not used for the purpose for which it was

intended.

Faulty goods should be returned to their place of purchase. No product can

be returned to us without prior permission.

This guarantee does not effect your statutory rights.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

INVENTORY

ITEM DESCRIPTION

1 Rubber Outlet Hose (3/4” male BSP end fittings)

2 Transparent Inlet Hose (3/4” male end fittings)

3 Dispensing Nozzle assembly

4 Carrying Handle c/w fixing screw/washer

5 12V or 24V Pump, c/w power cables & crocodile battery clips

6 3/4” BSP to 19mm Hose Adaptors (with O-rings)

7 Foot Valve/Filter assembly

8 Hose Clamps (pair)

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

CONNECTION & OPERATION

1. Fit the carrying handle to the

pump with the hex screw & washer

provided.

2. If required, the pump can be

installed in any horizontal

mounting position and mounted to

a flat surface using screws of

adequate size (not supplied)

through the mounting holes in the

base.

• The pump should not be installed at more than 6m above the fuel

supply.

3. Before connecting the pump, remove the travel plugs from the inlet/outlet

ports.

4. If not already fitted, screw the inlet filter to the plastic suction hose.

5. Screw in either:

• A) the inlet and outlet hoses

supplied or

• B) the inlet adaptors for use with

19 mm hoses

NOTE: The transparent suction hose is

connected to the side of the

pump marked “IN” and the

delivery hose to the side

marked “OUT” on the pump

casting.

• The hose and connections need to be completely air tight,

otherwise air will be drawn in and reduce the flow. If required use

PTFE tape.

6. Before connecting the delivery hose FOR THE FIRST TIME, partially fill the

pump body with fuel to facilitate priming. Ensure the hoses and tank are

free from contamination.

7. Insert the transparent suction hose & filter into the diesel fuel container.

WARNING: DO NOT USE WITH PETROL OR ANY OTHER HIGHLY FLAMMABLE

LIQUID TO DUE TO THE POSSIBILITY OF SPARKING TAKING PLACE AND

CAUSING FIRE.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

8. Ensure the ON/OFF switch is set to

the OFF (O) position BEFORE

connecting the pump cables to

the vehicle battery.

9. Ensure that the battery terminals are clean.

10. Connect the red-positive clamp to the red positive terminal first, then

connect the black clamp to the black-negative terminal, ensuring the

clamps are perfectly secure.

NOTE: The motor will not run if the clamps are connected the wrong way

round due to the in-built reverse polarity protection.

11. When disconnecting, always disconnect the black (negative) clamp first.

12. Ensure the clamps cannot be disturbed easily and that the setup is

protected from passers by.

13. Set the switch to ON (I).

• Ensure the transparent inlet suction hose and inlet filter clean as

once clogged, pump performance will quickly decline.

• Do not allow the pump to run dry for more than 30 seconds after

pumping has stopped. When finished pumping, switch off the pump.

14. During start-up it may be beneficial to open the dispensing nozzle on the

delivery hose to permit evacuation of air and achieve quicker priming.

CAUTION: ONLY CONNECT THE DFT12A PUMP TO A 12V BATTERY AND

THE DFT24A PUMP TO A 24V BATTERY.

WARNING: THIS PUMP HAS A 50% DUTY CYCLE AND SHOULD NOT BE RUN

CONTINUOUSLY FOR LONGER THAN 30 MINUTES. AFTER RUNNING, THE

PUMP MUST BE ALLOWED TO COOL FOR A PERIOD AT LEAST EQUAL TO THE

RUN TIME.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

FAULTFINDING

Problem Check Solution

Pump fails to

operate.

Check for good contact

between crocodile clips

and battery.

Check the switch is on and

that the fuse is not blown.

Pump rotor jammed.

Motor fault.

Establish good contact.

Replace fuse or switch

on.

Check for possible

damage or obstruction

of the rotating parts.

Return to Clarke Service

Department for repair.

Motor turns slowly

when starting.

Low supply voltage. Check condition of

battery.

Lack of flow delivery. Low level in the storage

tank.

Foot filter blocked.

Pump is positioned too high

above the storage tank.

By-pass valve blocked.

Air entering the pump via

the suction hose.

Narrowing of the suction

hose.

Low pump speed.

Suction tubing is resting on

the bottom of the tank.

Refill the tank.

Clean out the filter.

Position the pump lower

in relation to the tank.

Return to Clarke Service

Department for repair.

Check the security of

hose connections.

Hose is damaged,

blocked.

Check the power supply.

Raise the tubing.

Leakage from the

pump body.

Seal damaged. Return to Clarke Service

Department for repair.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

MAINTENANCE

The pump does not require any maintenance but should be inspected before

use to ensure that the power cables and clamps are in good condition and

that both of the hoses are sound.

Avoid using solvents if cleaning plastic parts, as most plastics are susceptible to

damage from various types of commercial solvents. Keep the filter on the inlet

hose free of accumulated dirt.

Store the pump in dry conditions protected from the weather.

For any problems requiring dismantling of the pump, contact your CLARKE

dealer.

Increased pump

noise

Cavitation of the liquid

being pumped.

Irregular functioning of the

by-pass.

Air present in the diesel fuel.

Reduce suction pressure

Dispense fuel until the air

is purged from the

by-pass system.

Check the suction hose

connection.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

DFT12A/24A COMPONENT PARTS

PART NO DESCRIPTION PART NO DESCRIPTION

1 Screw M5 x 10 18 Cable

2 Front Cover 19 Motor 12V/24V

3 O-Ring 20 Bearing

4 Rotor 21 Circlip

5 Blade 22 Seal

6 Pump Body 23 By-pass Valve

7 By-pass Spring 24 Screw M5 x 10

8 Handle 25 Base

9 Fuse 15A/25A 26 Key

10 Fuse Holder 27 Relay-SPST

11 Single Pole Switch 28 Diode

12 Cable c/w Crocodile Clip 29 J60 3/4”nozzle

13 Junction Box 30 Suction hose with filter

14 Screw M4 x 15 31 2M outlet hose

15 Locknut 32 Securing clip

16 Tapered Bush 33 Adaptor fitting

17 Nut M5

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