WilTec 50588 User manual

Operation Manual
Fuel Oil Pump and Diesel Pump
50588, 50589, 50591,50592, 50747, 50748, 50767, 50958, 51486, 51564, 62132, 62133, 62137
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 insignificant-
ly.
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 may alter at any time without previous notice. It is prohibit-
ed to copy or spread any parts of this document in any way without prior written allowance. All rights
reserved.
The WilTec Wildanger Technik GmbH cannot be held accountable for any possible mistakes in this
operating manual, nor in the diagrams and figures shown.
Even though, the WilTec Wildanger Technik GmbH has undergone biggest possible efforts to ensure
that the operating manual is complete, faultless and up to date, mistakes cannot be entirely avoided.
If you should find a mistake or wish to make a suggestion for improvement, we look forward to hearing
from you.
Send an e-mail to:
[email protected]
or use our contact form:
https://www.wiltec.de/contacts/
The most recent version of this manual in various languages can be found in our online shop via:
https://www.wiltec.de/docsearch
Our postal address is:
WilTec Wildanger Technik GmbH
Königsbenden 12
52249 Eschweiler
Germany
Do you wish to pick goods up? Our pick-up address is:
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
Germany
To shorten the waiting time and allow for a rapid on-site transaction, we ask you to call us previously
or placing your order via the webshop.
E-mail: [e-mail]
Tel:[phone]
Fax: [phone]
To return orders for exchange, repair or for other purposes, please use the following address. Atten-
tion! To allow for a smooth execution of your complaint or return, it is important to contact our custom-
er service team before returning the goods.
Returns Department
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
E-mail: [email protected]o
Tel:[phone]
Fax: [phone]

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Introduction
Thank you for purchasing this quality product. To minimize the risk of injury we urge that our cli-
ents take some basic safety precautions when using this device. Please read the operation
instructions carefully and make sure you have understood its content.
Keep these operation instructions safe.
Attention:
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.
Safety regulations
•Run a visual inspection of the device before every use. Do not use the device if safety appli-
ances 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 V AC has to correspond to the ex-
istent mains voltage.
•Never lift, carry, or fix 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 the maintenance work.
•Avoid exposing the diesel pump to direct water jets or rain.
•The operator is responsible for compliance with location-specific safety and installation regula-
tions. If necessary, ask a qualified electrician.
•Consequential damage arising from flooded rooms caused by dysfunctions of the device must
be avoided by means of appropriate measures (e.g., by installing an alarm system, a reserve
pump).
•In case of malfunction, the repair work can be carried out only by a qualified electrician.
•The device must not run dry or with a completely closed intake port. The manufacturer’s guar-
antee is no longer valid if the damage is caused by dry running.
Attention:
Read carefully all the safety guidelines and the instructions. Non-compliance with the safety rules
and regulations can lead to an electric shock, fire and/or serious injury.
Keep the instructions and the safety guidelines in a safe place in case you need them in the future.
Resistance
•The temperature of the conveyed liquid should not exceed +35 ℃in permanent operation.
•The pump must not convey aggressive fluids (acids, alkali, etc.) or fluids with abrasive sub-
stance (sand). It must NOT pump water or easy flammable liquids (petrol).

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Field of application
For conveying and transferring fuel oil (heating oil) or diesel fuel.
Technical data
Item num-
ber
Power
consump-
tion (W)
Energy
supply (V /
㎐)
Max. flow
rate (ℓ⁄min)
Max.
pump
height (m)
Max. suc-
tion height
(m)
Range of
tempera-
ture (℃)
Connec-
tion (㎜)
50588
750
230 / 50
80
25
5
–30 to +40
25.4 (1″)
internal
thread
50589
550
50
30
2
50591
550
60
36
2
50592
550
40
36
2
50747
600
40
36
2
50748
550
60
30
2
50767
600
40
36
2
50958
550
60
30
3
51486
550
60
30
2
51564
375
60
15
2
62132
550
60
30
3
62133
550
80
30
2
62137
750
100
25
3
Electrical connection
•The electrical connection takes place by means of a safety socket 230 V ~ 50 Hz. Fuse pro-
tection at least 10 A.
•The pump is turned on and off by means of a built-in ON-/OFF switch. The indicator lamp in-
side the switch lights up if the engine is started.
•The engine is protected against overloading or blocking by means of a built-in motor protec-
tion. In case of overheating the pump is turned off automatically due to the overheat protection
and after its cooling, the pump is automatically started.
Suction pipeline
•Connect a suction hose (plastic hose minimum ¾″ with spiral reinforcement) directly or with a
threaded fitting to the suction connection (intake connection) of the pump (1″ internal thread)
of the pump.
•The suction hose that is used should have a suction valve. In case the suction valve cannot be
used, a check valve should be installed in the suction line.
•Position the suction line on a rising gradient from the removal point towards the pump. Avoid
laying the suction line over the pump height, air bubbles in the suction line delay and prevent
the suction process.
•Suction and pressure line must be placed in such a way so that they exert no mechanical
pressure on the pump.
•The suction valve should lie deeply enough in the medium to be pumped. This way the drop in
the fluid level prevents the pump from dry running.

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•A leaking suction line prevents the suction of the pumped medium by sucking in air.
•Avoid sucking foreign particles (e.g., sand).
Commissioning
•Set up the pump on a fixed, flat place, where the temperature does not exceed 40 ℃. The
pump has to be placed in a horizontal position, so that the bearings can function properly;
screw the pump tight to its bottom part.
•Bring the suction line ready for operation. The suction hose should not be narrower than the
suction connection. If the suction lift exceeds 4 m, use a suction line with a larger diameter.
•Plug the plug in an appropriate socket.
•Fill up the pump with the diesel or heating oil at the pressure port.
•During the suction process, the shut-off devices (pump nozzle and valve) in the pressure line
must be completely open, so that the air existing in the suction line can escape freely.
•Depending on the suction lift and air volume in the suction line the first suction operation can
take approx. 0.5 min–5 min. By longer suction times, the medium to be pumped should be re-
filled.
•If the pump is removed after being used, it has to be newly refilled before it is connected and
operated again.
Ventilation of pump
The filler hole (part 1, see photograph below) of the diesel pump must be removed from the pump
housing. After that, by using a funnel, fill the medium to be pumped into this filler hole. Thus, the suc-
tion hose is fully filled. Filling the pump is completed when the pump body is fully filled as well. After
this, the filler hole has to be closed and the pump should now convey (pump) again.

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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.
Maintenance
Attention! Before every maintenance work the pump must be switched off, pull out the plug from
the power socket.
•The pump is maintenance free. However, for a long operation life, we recommend regular
checking and servicing.
•After long non-operation periods, check if the rotor turns properly.
Troubleshooting
Engine does not run
Causes
Solutions
No supply power (voltage).
Check voltage.
Pump impeller blocked –thermo controller has
is deactivated pump
Disassemble and clean pump.
Engine not running
Consult a professional electrician.
Pump does not suck in
Cause
Corrections of malfunctions
Suction valve not inside the pumped medium
Bring the suction valve in the pumped medium.
Pump room without pump medium
Fill in pump medium in suction nozzle.
Air in suction line
Check if suction line is well sealed.
Suction valve untight
Clean suction valve.
Suction strainer/valve blocked
Clean suction strainer.
Max. suction lift exceeded
Check suction lift.
Insufficient flow rate
Cause
Corrections of malfunctions
Suction lift too high
Check suction lift.
Suction strainer is dirty
Clean suction strainer.
Level of pumped medium drops rapidly
Place suction valve more deeply.
Pump capacity reduced because of harmful
substances
Clean pump and replace wearing parts.
Thermo switch shuts down pump
Cause
Corrections of malfunctions
Engine overloaded –excessive friction through
foreign particles
Disassemble and clean pump, 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 company WilTec Technik GmbH has been registered 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
Union and other European countries with a separate
collection 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 equip-
ment. By contributing to the correct disposal of this
article you protect the environment and the health of
your fellow men. Environment and health are threat-
ened by inappropriate disposal.
Material 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 instruction
manual require the written permission of WilTec Wildanger Technik GmbH.