Oertzen 311 C User manual

Operation Manual
311 C
316 C
von Oertzen GmbH • Ferdinand-Harten-Str. 10 • 22949 Ammersbek • Tel. [phone] • Fax [phone]
www.oertzen-gmbh.de • [e-mail]
11/08

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Table of Content
1. Introduction Page 3
2. Safety Instructions Page 4 - 5
3. Design/Configuration/Illustration Page 6 - 7
4. Start-up/Shut-down Page 8 - 11
5. Maintenance & Care Page 12 - 13
6. Electric Wiring Diagram Page 14
7. Technical Data Page 14
8. Trouble Shooting Page 15
9. Declaration of Conformity Page 16
311/316C-11/08-ag-

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1. Introduction
By buying this OERTZEN high pressure cleaner, you have obtained a most
capable machine suitable to perfectly meet your cleaning tasks. All OERTZEN
machines and accessories conform to the National and European Safety
Regulations. The CE label guarantees for fulfilment of all relevant National and
European Safety Regulations (EN). A CE Declaration of Conformity is attached
to this manual.
•This operation manual to be made available to operating personnel and to
be read completely before start-up. We clearly point out that we cannot be
held responsible for any malfunction or damage resulting from disregarding.
•According to safety regulations the high pressure cleaner to pass an annual
test in order to guarantee safe operation. Test results to be recorded and
made available to authorities on their request.
•Packing materials (e.g. foil, wood, cardboard, nails) might lead to possible
dangers and is therefore to be kept away from children and to be dumped
as per safety regulations.
This warning symbol appears in the operating manual at all
operating safety instructions dealing with danger for personal
entirety and life (DIN 4844).
This warning symbol appears in the operating manual at all
operating safety instructions dealing with danger due to electric
power.
This warning symbol appears in the operating manual at all
operating and safety instructions dealing with the fulfilment of
rules, regulations and instructions for the proper operation and to
avoid damages or destroying of the machine.
This operation manual is subject to technical alteration.
All rights reserved. Any use in other than legally authorised cases requires the
prior written approval of von Oertzen GmbH.

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2. Safety Instructions
The following instructions to be followed before, during and after work:
This operation manual to be read before start-up. When strictly following the
instructions, no danger should occur.
This machine must only be operated by qualified persons who are fully familiar
with the operation and possible danger. The operating instructions laid down in
the “Regulations for liquid blasters (ZH 1/406)” as well as “Working with liquid
blasters” strictly to be followed.
The machine is not suitable for unattended operation and must only be run
according to instructions laid down in this manual. During working protective
clothing to be worn.
The water stream leaving the spray pistol at high speed has a rather
dangerous cutting effect. So, never direct the water stream onto persons or
animals, nor direct it onto electrical units. When starting the machine, be aware
of torque and recoil. Ensure of stable foothold.
The max. pressure stated on the nameplate must not be exceeded. The safety
valve opens as soon as the max. operating pressure is exceeded by 10 %.
The safety/control valve is workshop adjusted and sealed. The adjustment
must not be changed.
Unsuitable or defective high pressure hoses very often cause accidents during
operation of high pressure cleaners. Therefore, check the hoses for damages
before any start-up. Defective hoses immediately to be replaced by original
OERTZEN equipment. Using other materials than original OERTZEN equip-
ment (hand nut respectively hose marked with “OERTZEN”) or using materials
which have not expressively been approved by OERTZEN in writing ceases
warranty and product liability.
Worn out high pressure hoses must never be repaired and re-used but must
be replaced by new original OERTZEN equipment.
Spray pistols with delayed closing mechanism must not be used, due to
danger of injuries.
Lever in open position must not be blocked or fixed in any other way.
Use of spray lances of less than 750 mm length is prohibited.
The unit must not be placed or operated in areas jeopardised by fire or
explosions. During working at fuel stations the “Technical Rules for flammable
Liquids” (TfbF) to be considered.

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Consumables to be handled thoroughly. Technical safety regulations and
environmental rules to be followed.
Make sure that power cable, plug connections switches are in proper
condition, otherwise the machine must not be started.
Extension cables to have a diameter according to VDE regulations. Extension
cables on reels to be reeled off completely, in order to avoid overheating of the
cable reel. Plugs, couplings to be water-proof. A faulty current protection
switch is recommended.
Electric power can cause severe injuries. Electric components thoroughly and
frequently to be checked for damages and malfunctions, in order to avoid any
cause for accidents. All repair work to be carried out by qualified personnel.
Disconnect the unit from the electrical network during all repair/maintenance
work. (ZH 1/95).
Ensure that the unit cannot move. The unit is equipped with a brake which
must be activated during working in steep areas.
Repair work within the high pressure section of the machine (pump, hoses,
piping) only to be carried out by qualified personnel.
During loading suitable lifting eyes to be foreseen. Balanced load to be
ensured.
After work spray pistol to be locked by means of the safety lever in order to
avoid unauthorised/accidental operation.
Using other materials than original OERTZEN equipment or using
materials which have not expressively been approved by OERTZEN in
writing ceases EC conformity, warranty and product liability.

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3. Design/Configuration/Illustration
The cold water cleaners of this series mainly comprise a low speed high
pressure inline plunger pump which is directly flanged to and driven by a high
performance electric motor.
The feed water is directed via a filter to the high pressure pump which,
together with the diameter of the determined spray nozzle, boosts it to the
required working pressure.
Downstreams of the high pressure pump a sealed safety/control valve is
installed which opens as soon as the max. operating pressure is exceeded by
10 % and returns the water which cannot be taken by the nozzle to the suction
line of the pump.
Working pressure can be adjusted as required by means of the handle at the
double lance. In parallel detergent can be injected by opening the detergent
dosing valve and so be fed into the water stream at low pressure.
The machines are equipped with a START/STOP device. When closing the
spray pistol, the high pressure cleaner is stopped; when releasing the spray
pistol again, the machine restarts and pressure is generated immediately so
that work can be continued without delay.
A wide range of accessories which allow to increase the efficiency of the
machine is available. Contact OERTZEN or your local dealer for details.

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4. Start-up/Shut-down
Before Start-up
Read operation manual and follow instructions.
In order to guarantee proper condition of the machine and trouble-free
operation, carry out the following checks before start-up:
•General condition of the unit (connections, seals, etc.)
•Power cables/connections
•Check all hoses for damage
•Air supply to be ensured
•Fill in all consumables required
•Check correct oil level of high pressure pump (dip stick), only oil qualities
approved by OERTZEN to be used (OERTZEN OSP special pump oil).
•Check high pressure pump/pump connections for leaks
•Machine only to be run with absolutely clean water. Thoroughly flush water
supply hose before connection. Depending on water quality, filter to be
checked in regular short intervals and replaced whenever needed.
•Machine to be run horizontally (+/- 5°)
In order to guarantee proper condition of the machine and trouble-free
operation, carry out the following checks during operation:
•Observe control indications/devices whether functioning
•Observe pressure whether varying
•Observe high pressure pump, hoses, connections whether leaking
•Observe abnormal noise
In case of malfunctions switch off machine immediately, eliminate cause
according to chapter "Trouble Shooting", call qualified service.
Connections
Water Connection
Water inlet (6) of the unit to be connected to the water distribution network by
means of an internally clean, min. ” water hose (diameter: see table below).
For connections to the potable water distribution network DIN 1988 to be
considered (for short-time connection a back-flow preventer with non-return
protection and ventilation to be used).
Flow Pressure Flow Rate minimum *
minimum: 2 bar
maximum: 8 bar 15 l/min. " supply hose
21 l/min. 1" supply hose
30 l/min. 1 " supply hose
* see Technical Data
Water shortage may cause severe damages on the pump unit
(cavitation).

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Electric Connection
Connect the unit to a power source which is protected according to table
below.
311 C 316 C
Power supply 230 Volt
400 Volt
Protection 16 A (slow)
3 x 16 A (slow)
Extension cables to have a diameter according to VDE regulations. Extension
cables on reels to be reeled off completely, in order to avoid overheating of the
cable reel. Plugs, couplings to be water-proof. A faulty current protection
switch is recommended. VDE regulations apply.
High Pressure Connection
High pressure hose to be connected to high pressure outlet (11) of the
machine by means of the hand nut without using tools.
Detergent Tank Filling
Fill detergent tank (17) with non-hazardous detergent. When using powders,
these have to be mixed in a separate tank before being filled into the detergent
tank of the machine.
Operation
Important Notes
Both the models are equipped with an automatic START/STOP
device, which stop the machine when closing the spray pistol;
when the spray pistol is released again, the machine is re-started.
The machine always to be switched off by means of the ON/OFF
switch (2) after completion of work, de-pressurise the spray
device.
Machine is equipped with thermal overload protection; if activated,
cool down and re-start machine.
Operation
Open water source.
Unlock and release spray pistol, bleed the unit.
Start the unit by means of the ON/OFF switch (2).
Be aware of recoil / ensure stable foothold.
Carry out cleaning task.

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Pressure Adjustment
The working pressure can be continuously be adjusted by opening/closing the
handle at the double lance.
Counter-clockwise: pressure decrease
Clockwise: pressure increase
Detergent Dosing
Only detergents approved by OERTZEN to be used. Use of
hazardous detergents or detergents not approved by OERTZEN
ceases warranty and product liability.
Open the detergent dosing valve(16).
Open the valve of the double lance completely (turn counter-clockwise) and
activate spray pistol. The injector is now activated, automatically feeds the
detergent into the water stream and applies it onto the surface of the cleaning
object. Detergent to work in, but must not dry.
By turning the handle of the double lance clockwise detergent dosing is
stopped. Cleaning object can be washed with high pressure beam.
After use of detergents, operate the machine with clean water for a
couple of minutes, in order to completely flush the detergent out of
the system.

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After Completion of Work
The unit to be switched off by means of the ON/OFF switch (2).
De-pressurise the spray pistol by shortly opening and closing and lock it then.
Disconnect the unit from the water and power sources.
Reel off high pressure hose and thoroughly clean it. In case of damage
replace it for safety reasons.
Using other materials than original OERTZEN equipment (hand nut respec-
tively hose marked with “OERTZEN”) or using materials which have not
expressively been approved by OERTZEN in writing ceases warranty and
product liability.
Reel up high pressure hose properly, without loops.
Store equipment in a dry, frost-protected area.
In case of extended shut-down periods drain pump completely.
Particularly Note
In case of malfunctions switch off machine immediately, eliminate cause
according to chapter "Trouble Shooting", call qualified service.
If frost is likely, frost protection of the machine is a must, as otherwise severe
damage could occur.

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5. Maintenance and Care
Every Machine is only as reliable as maintenance is carried out.
According to safety regulations the high pressure cleaner to pass an
annual test in order to guarantee safe operation. Test results to be
recorded and made available to authorities on their request.
Moreover, it is of vital interest to carry out the following maintenance
work in shorter than then normal maintenance intervals:
Disregarding maintenance work/intervals ceases warranty.
High Pressure Pump
First oil change after 50 operating hours. Further oil changes every 500 opera-
ting hours or min. once a year in connection with maintenance carried out by
authorised OERTZEN service personnel. In case the pump oil is becoming
turbid, initiate oil change. In case oil is becoming turbid again or is being lost,
call qualified service.
Only OERTZEN OSP special pump oil to be used. Use of oil qualities
not approved by OERTZEN ceases warranty.

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Strainer
A strainer (6) is installed at the water inlet of the machine which must be
checked and cleaned, respectively replaced whenever needed.
Severe damage on pump set and control units can be caused by
running the machine with polluted feed water and/or clogged strainer.
Frost Protection
Frost-protection of the machine is of vital interest, as frost can cause severe
damage on the entire system.
The best frost protection is to store the machine/accessories in a permanently
frost-protected area.
If there is a risk of temperatures below freezing point during storage and/or
transportation, the machine to be frost-protected as follows:
•2 l of a 1 : 1 water/anti-freeze liquid (e.g. Glysantin) to be mixed in a clean
vessel. Put water supply hose into the vessel and start the high pressure
pump.
•Spray pistol/stop valve to be opened in order to circulate the anti-freeze
liquid.
•Spray pistol/stop valve to be opened and closed several times in order to
also fill safety/control valve with anti-freeze liquid.
•Stop high pressure pump and disconnect all hoses.
•Machine is now protected against temperatures of –30 °C.
Disregarding of frost-protection instructions can cause severe
damage on the entire system.
Anti-freeze liquid to be collected for re-use, respectively to be
dumped properly according to safety regulations.

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7. Technical Data
Technical Data 311 C 316 C
Flow rate/adjustable 600 l/h
780 l/h
Unloading pressure 160 bar
200 bar
Max. working pressure 140 bar
180 bar
Max. recoil 28 N
49 n
Max. water temperature 50 °C
50 °C
Electric current 1~230 V/50 Hz
3~400 V/50 Hz
Fuse (slow) 16 A
3 x 16 A
Power consumption 3,2 kW
4,3 kW
Spray nozzle 15035 Ssy
2505 Ssy
Noise level Lp/Lw
acc. to DIN EN ISO 3744
73/85 dB(A)
73/85 dB(A)
Dimensions (L x W x H) 420 x 310 x 890 mm
420 x 310 x 890 mm
Weight 31 kg
34 kg
Order No. 10.000.312
10.000.306

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8. Trouble Shooting
Electrical energy can cause severe injuries. Electrical components tho-
roughly and frequently to be checked for damages and malfunctions, in
order to avoid any cause for accidents. Disconnect the unit from the
electrical network during all repair/maintenance work (ZH 1/95).
Trouble Shooting: - only to be carried out by qualified service personnel.
Malfunction Cause Remedy
Electr. motor does not start. Motor protection switch pushed.Push motor protection switch.
Unit not connected to power Insert plug into socket.
source
Fuse burnt. Replace fuse. If fuse burns
again, call qualified service.
Phase in electr. plug missing. Install phase acc. to electr.
wiring diagram.
Motor protection switch faulty. Call qualified service.
Electr. motor suddenly stops. Fuse burnt (phase missing). Replace fuse.
If fuse burns again or motor is
noisy, call qualified service.
Low voltage/thermal overload. Arrange required voltage
(refer to techn. data, name
plate). Cool down motor,
re-start, call qualified service.
Motor protection switch faulty. Call qualified service.
Operating pressure high. Clean/replace nozzle (refer to
techn. data).
Electr. motor is noisy at Fuse burnt (phase missing). Replace fuse.
start-up. If fuse burns again, call
qualified service.
Fault in electr. network. Check phases in electr. plug.
Operating pressure not Air in unit. Bleed HP-cleaner.
achieved, varies. Open pressure adjusting
handle and pistol unless
stable pressure is achieved.
Water shortage. Water supply hose too small
(see table).
Nozzle worn. Replace nozzle.
Incorrect nozzle. Install correct nozzle.
Nozzle partly clogged. Dismantle and clean nozzle.
Water filter clogged. Dismantle, clean and flush.
Vibrations on high pressure Air in unit. Open pressure adjusting
hose and pistol. handle and pistol unless
stable pressure is achieved.
Clean strainer.
No detgergent injection. Detergent tank empty. Re-fill tank.
Dosing valve a/o pressure Open.
adjusting handle closed.
Low pressure nozzle in Dismantle, clean.
double lance clogged.
Non-return valve blocked Blow compressed air into
detergent hose

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