Oertzen E 334 User manual

To be read before start-up!
Operation Manual
E 334
von Oertzen GmbH • Ferdinand-Harten-Str. 10 • 22949 Ammersbek • Tel. [phone] • Fax [phone]
www.oertzen-gmbh.de • [e-mail]
6/05

2
Contents
1. Introduction Page 3
2. Safety Instructions Page 4 – 5
3. Configuration/Operation/Illustrations Page 6 – 7
4. Start-up/Operation/Shut-down Page 8 – 10
5. Maintenance and Care Page 11 – 12
6. Electric Wiring Diagrams Page 13
7. Technical Data Page 13
8. Trouble Shooting Page 14
9. Declaration of Conformity Page 15
E334-02/05-AG,VS-6/05

3
1. Introduction
By buying the OERTZEN equipment you have purchased one of the most
durable and reliable high pressure cleaners available on the market. Its
balanced ratio of water flow (temperature) and working pressure perfectly
meets all cleaning requirements. The OERTZEN high pressure cleaners and
accessories conform to all European safety regulations which is guaranteed by
the CE symbol on the type plate. A Declaration of Conformity is part of this
manual.
•This manual to be made available to the operating personnel and to be
read completely before start-up. We point out that we cannot be held
responsible for any damage or malfunctions as a result of ignoring this
manual.
•According to the Directive for Use of Liquid Blasters (ZH 1/406) the
machine described in this manual to be inspected every year by
qualified personnel. Inspection results to be recorded and to be made
available to authorities their on request. OERTZEN offers qualified
service personnel to carry out safety inspections at attractive prices.
•The packing materials (plastic foil, wood, cardboard boxes, nails etc.)
are potentially dangerous, should be kept away from children and
disposed according to environmental requirements.
This symbol appears at all operating and safety instructions
dealing with risks for personal entirety and life.
This warning symbol appears in the operating manual at all
operating safety instructions dealing with risks due to electric
power.
This symbol appears at all operating and safety instructions
dealing with the fulfilment of rules, regulations and instructions for
the proper operation and destruction of the machine.
This manual is subject to technical alteration.
All rights reserved. Any use in other than legally authorised cases requires the
written approval of ARNDT H. von OERTZEN (GmbH&Co).

4
2. Safety Instructions
The following instructions to be followed before, during and after work:
This instruction manual to be read completely before initial start-up. If strictly followed,
no danger should occur.
This machine must only be run by qualified adult persons who are fully aware of
possible dangers. Relevant national safety rules to be followed.
The machine is not suitable for unattended operation and must be operated according
to specification. Protective clothing to be worn.
The water jet emerging from the spray pistol has a dangerous cutting effect. There-
fore the water jet must never be directed onto persons, animals or electrical installa-
tions. It must never be used for cleaning of clothes, footwear and the like. Be aware of
torque and recoil. Ensure stable foothold.
The max. allowed pressure which is stated on the type plate must not be exceeded.
The safety/control valve opens, if the max. operating pressure is exceeded by more
than 10 % and returns the water into the suction side of the high pressure pump. The
safety/control valve is workshop-set and sealed. Adjustment must not be changed.
Unsuitable respectively defective high pressure hoses often cause severe accidents
during operation. Therefore high pressure hoses to be carefully inspected before
start-up and replaced by original OERTZEN equipment in case of damage. Use of
other than original OERTZEN equipment (hand nut marked with OERTZEN), results
in expiry of the EC Declaration of Conformity, as well as product liability and warranty.
Used or damaged high pressure hoses must never be repaired and reused but to be
replaced by original OERTZEN equipment.
Spray pistols with delayed closing mechanism must not be used because of risk of
injuries.
Lever in open position must never be blocked or fixed in any way.
Use of spray wands of a length below 750 mm is prohibited.
The machine must not be run in areas jeopardized by fire or explosions. During
operation at filling stations “Technical Rules for flammable Liquids” (TfbF) to be
observed.
Consumables to be handled throroughly according to technical rules and safety and
environmental regulations to be observed.
Machine must not be started, if power cable, plug, switches, etc. are defective.
Only extension cables designed according to VDE to be used. Extension cables on
reels to be completely reeled off during operation in order to avoid overheating of the
reel. Plug, couplings to be watertight. A faulty current protection switch to be added.
Before opening the machine in case of malfunction or emergency, switch off by
means of the ON/OFF switch and disconnect it from electric power source.

5
Electric power can cause severe injuries. All symptoms of faulty electric components
to be taken seriously and possible causes for accidents to be eliminated immediately.
All repair work only to be carried out by qualified service personnel.
Make sure that the machine cannot move. The unit is equipped with a parking brake
which must be set during working.
When using pipe cleaning hoses observe marking (approx. 50 cm). Strictly follow
instructions in para “Pipe Cleaning”, chapter “Operation”.
During loading hoisting device to be fastened properly at jack rings. Ensure balanced
load.
Repair work in the high pressure section of the machine (pump, hoses, piping) only to
be carried out by qualified personnel.
After work the machine to be locked and secured against unauthorized/accidental
operation by means of the safety lever.
Use of equipment and/or consumables which is/are not delivered or
expressively approved by OERTZEN results in expiry of the EC Declaration of
Conformity, as well as product liability and warranty.

6
3. Configuration, Operation, Illustration
The cold water machines of this series mainly comprise of a low speed high
pressure inline plunger pump, which is directly flanged to and driven by a
100 % duty electric motor.
The feed water is directed with the required admission pressure via a pre-filter
to the high pressure pump which – in connection with the required spray
nozzle – boosts it to the stated/adjusted working pressure. In order to protect
the pump against cavitation due to poor water flow, a low water cut-out is
arranged which stops the machine as soon as the flow pressure drops below
2 bar.
Downstream of the high pressure pump a locked and sealed safety/control
valve is installed which opens as soon as the operating pressure is exceeded
by more than 10 % and returns the water which cannot be taken by the nozzle
into the suction line of the pump.
It also allows to continuously adjust working pressure and water flow as
required.
The working pressure can be adjusted by means of the turning handle at the
double lance and so be adjusted as required.
The machine is equipped with a circulation shut-off system and additionally
with a thermo valve in order to protect the pump against overheating. After
closing the spray pistol the safety/control valve opens, and returns the
circulating water into the suction line. If, during this operating condition, the
temperature of the circulating water exceeds 60 °C, the thermo valve opens,
releases small amounts of hot water and cold water enters. Re-starting and
immediate generation of required/adjusted working pressure is achieved by
opening the spray pistol again, allowing to continue the cleaning task without
delay.
The range of applications can be extended by a variety of accessories
available. Contact your local distributor.

7

8
4. Start-up / Shut-down
Before Start-up:
Read and observe operation manual.
In order to guarantee proper function and trouble-free operation, the
following checks to be carried out before start-up:
•General condition of the unit (connections, gaskets, etc.).
•Power cables/connections.
•High pressure hoses, hose pipes, whether damaged.
•Air supply, fresh air grill must not be covered.
•Filling of consumables.
•Correct oil level of high pressure pump (sight glass/dip stick).
•High pressure pump: special pump oil OERTZEN OSP.
•Pump/pump connections whether leaking.
•Machine only to be run with absolutely clean water. Before connecting
the water supply hose, rinse it thoroughly. Depending on feed water
quality, regularly check water filter in short intervals, replace if needed.
•Machine only to be run horizontally (+/- 5°).
In order to guarantee proper function and trouble-free operation, the
following checks to be carried out during working:
•Observe function of indicator lights/monitors.
•Observe pressure variations
•Observe leaks at high pressure pump, hose pipes, connections.
•Observe unnormal noise.
In case of malfunctions immediately stop machine, eliminate cause according
to chapter „Trouble Shooting“, call qualified service.
Connections
Water Supply
Connect water inlet (6) of the machine to water source with a clean hose
(diameter see table below). Before connecting water supply hose, rinse it
thoroughly. In case of connection to the potable water distribution, observe
DIN 1988 (for momentary connections use a backflow preventer with non-
return function and ventilation).
Flow pressure Min. flow rate *
minimum: 2 bar 15 l/min " water supply hose
maximum: 8 bar 21 l/min 1" water supply hose
30 l/min 1 " water supply hose
* see Technical Data
Insufficient water supply will cause heavy damage on high
pressure pump (cavitation).

9
Power Supply
Insert plug into a 400 V socket which is protected by 3 x 63 A (slow). Only
extension cables designed according to VDE to be used. Extension cables on
reels to be reeled off during operation in order to avoid overheating of the reel.
Plug, couplings to be watertight. A faulty current protection switch to be added.
VDE regulations to be observed.
High Pressure Connection
Connect high pressure hose to high pressure outlet (11) by means of the hand
nut without using tools.
Pipe Cleaning Hose Connection (optional)
Connect high pressure hose with high pressure water outlet (11) by means of
the hand nut without using tools. Other end to be connected with required pipe
cleaning nozzle handtight without using tools.
Operation
•Fully open water source
•Unlock and release spray pistol, bleed unit
•Push ON/OFF switch (2).
Be aware of significant recoil. Ensure stable foothold.
•Carry out cleaning task.
Pressure Regulation
The pressure can continuously be adjusted as required at the regulation
handle of the double lance.
Counter-clockwise: pressure reduction
Clockwise: pressure increase
Pressure/Flow Regulation
Pressure and flow rate can continuously be adjusted as required at the turning
knob of the safety control valve.
Counter-clockwise: continuous pressure and flow reduction to minimum
capacity
Clockwise: continuous pressure and flow increase to maximum
capacity
When pistol is closed, machine is running in circulation
mode. If water temperature exceeds 60 °C, thermo valve (14)
opens, releases small amounts of hot water and cold water enters.
High Pressure Pipe Cleaning (Option)
During the pipe cleaning procedure aerosols may be formed, so
that wearing a protective mask is recommended.
Push pipe cleaning hose with nozzle into the pipe up to the marking
(approx. 50 cm).

10
Open stop valve and start unit by means of the ON/OFF switch (2). The
pipe cleaning nozzle is automatically drawn in due to the recoil effect.
As soon as the nozzle hits the clogging, carefully pull back the hose and
let it move in again, in order to flush out the clogging. Work in sections
and avoid excessive dirt removal, in order to avoid that the pipe is
clogged again.
During removal of the pipe cleaning hose stop machine as soon as
the marking is reached (approx. 50 cm before the end is reached),
as otherwise the hose would flap around so causing severe
injuries. If no marking is detected, apply one by tape or paint.
After Work
•Switch off machine by means of the ON/OFF switch (2).
•Depressurize spray pistol by shortly opening
and closing.
•Lock spray pistol.
•Disconnect machine from water and power source.
•Thoroughly clean high pressure hose. In case of damage
(cuts, abrasions, kinks, etc.) replace high
pressure hose for safety reasons.
•Only original OERTZEN high pressure hoses to be used.
Otherwise Declaration of Conformity and warranty will expire.
•Reel up high pressure hose properly without any loops.
•Store machine and accessories in a dry, frost-protected area.
•Drain pump completely in case of extended shut-down periods.
Particularly note:
In case of malfuctions, eliminate cause according to chapter „Trouble
Shooting“, call qualified service.
In case frost is likely, frost protection to be carried out (see chapter
„Maintenance and Care“), otherwise severe damage will be the result.

11
5. Maintenance and Care
Every machine is only as reliable as maintenance is carried out.
The manufacturer offers maintenance agreements for every machine
comprising the yearly safety inspection. Contact your local distributor for
more information.
The machine to be inspected every year by qualified personnel, in order
to guarantee trouble-free and safe operation. Inspection results to be
recorded and to be made available to authorities their on request.
OERTZEN offers qualified service personnel to carry out safety
inspections at attractive prices.
In order to guarantee reliability and trouble free operation of the
machine, it is of vital interest to follow the instructions below:
If the required maintenance intervals are disregarded, warranty will
expire.
High Pressure Pump
First oil change after 50 operating hours, further oil changes after every 500 operating
hours, minimum once per year. In case the oil becomes milky due to condensate
formation, stop the machine immediately and carry out oil change. If this happens
repeatedly, arrange replacement of all pump seals and packings by qualified
personnel.
For the high pressure pump only special pump oil OERTZEN OSP to be used,
as otherwise you will loose your right to claim under parts guarantee.

12
Pre-Filter
Upstreams of the high pressure pump there is a pre-filter (6) installed, which
must be inspected before start-up and cartridge replaced whenever required.
If the machine is run with polluted water or dirty pre-filter severe
damage of the pump and control elements will be the result.
Frost Protection
Frost protection of the entire water system during storage and transport
is a must, as otherwise heavy damage on the system and severe
dangers during operation may occur.
The best frost protection is to store the machine and accessories in a frost-
protected room.
If frost is likely during storage and/or transportation the machine to be
protected as described below:
•Mix 2 l of a 1 : 1 water/anti-freeze liquid (e.g. Glysantin) in a clean
vessel, dip water connecting hose into anti-freeze liquid and start pump.
•Open spray pistol/stop valve and return drawn-off anti-freeze liquid into
the vessel, so allowing the liquid to circulate through the system. The
frost protection switch to be kept pressed during the procedure.
•Spray pistol/stop valve to be opened and closed several times in order
to fill safety/control valve with anti-freeze liquid.
•Stop pump, release frost protection switch and disconnect all hoses.
•Machine is now protected against frost to –30 °C.
Disregarding frost protection instructions will result in heavy
damage of the water carrying components.
Never simply dump anti-freeze liquid but collect it for re-use or
dispose according to environmental regulations.

13
6. Electric Wiring Diagrams
7. Technical Data
Technical Data E 334
Water flow/adjustable 1000 – 2020 l/h
Unloading pressure 230 bar
Working pressure/adjustable 210 bar
Normal current (50 Hz) 3 ~ 400 V
Electric power 15 HP/12,5 kW
Pump speed 1420 1/min
Power consumption 24 A
Noise level Lp/Lw acc. to DIN EN ISO 3744 69/81 dB(A)
Recoil 116 N
Dimensions (L x W x H mm) 780 x 690 x 800 mm
Weight 146 kg
Spray nozzle 1033 HIP
Order No. 10.000.334

14
8. Trouble Shooting
Electric power can cause severe injuries. Defective electrical compo-
nents to be immediately replaced, possible causes for accidents to be
eliminated without delay. Any repair work must only be carried out by
qualified personnel.
Only original equipment expressively approved by the manufacturer to
be installed, as otherwise warranty and Declaration of Conformity will
cease, health and safety standards are not guaranteed.
During repair or maintenance work, unit to be disconnected from
electrical network.
Malfunction Cause Remedy
Electric motor does not start. - Motor protection switch not pushed.
- Machine not connected to power
source.
- Fuse burnt.
- Phase missing.
- Motor protection switch defective.
- Poor water supply
(only in case SCS system is installed)
- Push motor protection switch.
- Connect machine to power source,
switch on main switch.
- Replace fuse. If it burns again, call
qualified service.
- Phase to be mounted as per electric
wiring diagram.
- Call qualified service.
- Ensure sufficient water supply.
Electric motor suddenly stops,
motor protection switch trips. - Poor water supply
- Fuse burnt.
(phase missing).
- Low voltage.
- Motor protection switch defective.
- Operating pressure high.
- Eliminate cause and re-start machine
with ON/OFF switch.
- Replace fuse. If it burns again or motor
is noisy, call qualified service.
- Ensure correct power supply.
- Call qualified service.
- Clean/replace nozzle
(see Technical Data).
Electric motor noisy upon start-up. - Fuse burnt.
(phase missing).
- Fault in electrical network
- Replace fuse. If it burns again, call
qualified service.
- Check phases in electric plug.
Operating pressure not achieved/varies - Air in unit
- Nozzle worn.
- Incorrect nozzle.
- Nozzle partly clogged.
- Water filter dirty.
- Unloader valve leaking
- Suction side leaking
- Suction valves sticking/dirty.
- Bleed unit.
Open pressure regulating handle and
pistol, until continuous pressure is
reached.
- Replace nozzle.
- Install correct nozzle.
- Remove/clean/re-install nozzle.
- Clean water filter.
- Call qualified service.
- Tighten hose clamps on suction hose.
- Remove/clean/re-install valves.
Vibrations on high pressure hose and
spray pistol - Air in unit - Bleed unit. Open pressure regulating handle and
pistol, until continuous pressure is
reached.

15