WilTec 50743 User manual

Operation Manual
ARTICLE Fuel Oil Pump and Diesel Pump
Item number 50743 50744 50768 50769 50959 51563 62134 62136
Illustration similar, may vary depending on model
Read and follow the operating instructions and safety information before using for the first time.
Technical changes reserved!
Due to further developments, illustrations, functioning steps and technical data can differ insignificantly.
Updating the documentation
If you have suggestions for improvement or have found any irregularities, please contact us.

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The information contained in this document is subject to change without prior notice. No part of this
document can be copied or duplicated in another form without the prior written consent of WilTec Wil-
danger Technik GmbH. The WilTec Wildanger Technik GmbH assumes no liability for any errors in this
user manual or the connection diagram.
Although WilTec Wildanger Technik GmbH has made every effort to make sure that this user manual is
complete, accurate and updated, errors cannot always be avoided. In the event of problems with this
user manual please complete and send this form back to us.
FAX-notification (+++49 2403 55592-15),
from: ________________________________________
Name: ________________
Firm:_____________________
Tel/Fax:__________________
I would like to report the following mistakes:
___________________________________________________________________
Customer Service WilTec Wildanger Technik GmbH
e-mail: [e-mail]
Tel: ++49 2403 55592-0
Introduction
Thank you for purchasing this quality product. To minimize the risk of injury we urge that our clients
take some basic safety precautions when using this device. Please read the operation instruc-
tions carefully and make sure you have understood its content.
Keep these operation instructions safe.

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Safety guideline
BEWARE:
The device is not intended for use by persons (including children) with impaired or limited physical,
sensory and mental abilities or lack of experience and/or real knowledge, unless they are supervised by
a person responsible for their safety or you follow the instructions made by this person how to use the
device correctly.
Children should be supervised to make sure that they do not play with the device.
ATTENTION:
•Run a visual inspection of the device before every use. Do not use the device if the safety
appliances are damaged or worn out. Never override safety regulations.
•Use the device exclusively according to the intended purpose stated in the instructions for use.
•You are responsible for the safety of the working environment.
•If the cable or the plug is damaged due to external influences the cable must not be repaired! It
has to be replaced with a new one. This work can be carried out only by an electrician.
•The voltage indicated on the type plate of the device of 230 Volt alternating voltage has to
correspond to the existent mains voltage.
•Never lift, carry or fixate the device by using the power cable.
•Make sure that the electrical plug connection is placed in a flood-proof area and is protected
from moisture.
•Disconnect the mains plug before starting the operation.
•The device must not be subjected to a direct stream of water or rain.
•The operator is held responsible for the compliance with the local safety and installation regu-
lations (as the case may be, you can ask a qualified electrician)
•The operator has to exclude any consequential damage due to flooding of areas by using the
appropriate measures (e.g. installation of an alarm system, standby pump and the like)
•In case of a failure of the device any reparation must be performed exclusively by a qualified
electrician or by the WilTec service.
•The device must never run dry or be operated with its suction pipe fully closed. The manufac-
turer´s warranty expires regarding any damage that might occur due to running dry.
WARNING:
Read all security notes and instructions. Any failure to follow up the security notes and instructions
may result in electric shock, fire and / or serious injury. Keep all safety information and instructions for
future reference.
Resistance
The maximum temperature of the liquid to be delivered should not exceed +35°C while continuously
operated.
The pumping of aggressive liquids (such as acids, alkalis, silage effluent and the like) as well as liquids
with abrasive materials (e.g. sand) must be avoided. Water must not be transported, either. Moreover,
you must not pump any flammable liquids (gasoline).
Summary
The pump is a small high-efficiently designed diesel pump with a large flow rate and delivery head,
operated by the car battery and easy to use. The pump does not only deliver diesel but also engine oil.

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(With this pump you must not transport gasoline or the like!) The pump is applicable for small gas sta-
tions as well as for private or mobile use.
Features
l. High flow rate, high suction
2. Quickly and easily to operate by car battery
3. Reliably and safe
Technical data
Description
50743
50744
50768
50769
50959
51563
62134
62136
Input voltage V
12
24
12
12
12
12
12
12
Power consumption W
150
150
160
160
150
180
375
550
Delivery rate maximum
l/min
40
40
40
40
40
40
60
80
Delivery head m
10
10
10
10
10
12
12
15
Suction head maximum
m
2
2
2
2
2
2
3
3
Connection (Input / Out-
put)
3/4”
3/4”
3/4”
3/4”
3/4”
3/4”
1“ IG
1“ IG
Application
The diesel pump series has been thoroughly tested with regard to its temperature resistance and com-
plies with the requirements of protection class IP55. It has a built-in protection valve and can be used
without hesitation for machinery and vehicles in the open in order to simplify the refuelling.
Indications:
1. Before connecting the cord, check the power supply
2. There must be an input voltage of 12 volts DC (direct current) +/- 5%.
3. It is recommended to pre-fill a small amount of the liquid to be delivered before the pump is
used for the first time. Connect the hoses according to the arrows on the pump.
4. Please make sure that any and all connections are well sealed and that there can no air be
sucked in. To ensure that the pumped medium is not contaminated, please use the supplied
filter.
5. The pump must not be operated any longer than 20 minutes at a time.
ATTENTION!
The pump must not run dry.
Cleaning
The heating oil pump must be cleaned only by using mild cleaning agents as well as a damp cloth and
soapy water. Damage caused by inappropriate cleaning agents is not covered by warranty.

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Maintenance
⚫The pump is maintenance free. For a long operation life we recommend regular checking and ser-
vicing.
Attention!
Before every maintenance work the pump must be switched off, pull out the plug from the power
socket.
⚫After long non-operation periods check if a proper turning of the rotor takes place.
Malfunctions of the pump
Engine does not run
Cause
Corrections of malfunctions
No supply power (voltage)
Check voltage
Pump impeller is blocked–thermo controller is deac-
tivated
Dismantle the pump and clean it
The engine does not run
Consult a professional electrician
Pump does not suck in
Cause
Corrections of malfunctions
Suction valve is not in the pumped medium
Bring the suction valve in the pumped medium
Pump room without pump medium
Fill in pump medium in the suction nozzle
Air in the suction line
Check if the suction line is well sealed
Saugventil undicht
Clean the suction valve
Suction strainer(suction valve is blocked
Clean the suction strainer
Max. suction lift is exceeded
Check the suction lift
Insufficient flow rate
Cause
Corrections of malfunctions
Suction lift too high
Check the suction lift
Suction strainer is dirty
Clean the suction strainer
The level of the pumped medium drops rapidly
Place the suction valve more deeply
Pump capacity is reduced because of harmful
substances
Clean the pump and replace the wearing part
Thermo switch shuts down the pump
Cause
Corrections of malfunctions
Engine overloaded –excessive friction
through foreign particles
Dismantle the pump and clean it,
prevent suction of foreign particles
(Filter)
Attention!
The pump must not run dry.

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Disposal regulations
EU guidelines regarding the disposal of scrap electric appliances (WEEE, 2012/19/EU) were imple-
mented in the law related to electrical and electronic equipment and appliances.
All WilTec electric devices that fall under the WEEE regulations are labelled with the crossed-out
wheeled waste bin logo. This logo indicates that this electric equipment must not be disposed with the
domestic waste.
The companyWilTec Technik GmbH has been registrated in the German registry EAR under the WEEE-
registration number DE45283704.
Disposal of used electrical and electronic appliances
(intended for use in the countries of the European Un-
ion and other European countries with a separate col-
lection system for these appliances).
The logo on the article or on its packaging points out
that this article must not be treated as normal house-
hold waste but must be disposed to a recycling collec-
tion point for electronic and electrical waste equipment.
By contributing to the correct disposal of this article you
protect the environment and the health of your fellow
men. Environment and health are threatened by inap-
propriate disposal.
Materials’ recycling helps reduce the consumption of raw materials.
Additional information on recycling this article can be provided by your local community, municipal waste
disposal facilities or the store where you purchased the article.
Address:
WilTec Wildanger Technik GmbH
Königsbenden 12 / 28
D-52249 Eschweiler
Important notice:
The reprint or reproduction, even of excerpts, and any commercial use, even in part of this instructions
manual require the written permission of WilTec Wildanger Technik GmbH.