Gerni N/G-230A Operating Manual

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950911.05

N/G-230A/250A/270A

240A Hi-flow

Betjeningssvejledning

. . . . . . . . . . . . . . . . . .

side

Operating guide

. . . . . . . . . . . . . . . . . . . . . . . . . . .

side 11

Bruksanvisning

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

sida 19

page 27

Betreibsanleitung

. . . . . . . . . . . . . . . . . . . . . . . .

Seite 35

Mode d’emploi

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

page 43

Gebruiksaanwijzingen

. . . . . . . . . . . . . . .

pagina 51

Instrucciones de manejo

. . . . . . . . . . .

pàgina 59

Instruções para uso

. . . . . . . . . . . . . . . . . .

pàgina 66

Type:

200/230/240/250/270

Maskinen er fremstillet i overensstemmelse med følgende

direktiver:

Maskindirektiv:

98/37/EØF

EMC-direktiv:

89/336/EØF

Lavspændingsdirektiv:

73/23/EØF

Støjemissiondirektiv:

2000/14/EC

Type:

200/230/240/250/270

Maskinen er fremstilt i overensstemmelse med følgende
direktiver:
Maskindirektiv:

98/37/EØS

EMC-direktiv:

89/336/EØS

Lavspenndingsdirektiv:

73/23/EØS

Lydtrykknivådirektiv:

2000/14/EC

Typ:

200/230/240/250/270

Maskinen är framställd i överensstämmelse med följande
direktiv:
Maskindirektiv:

98/37/EEC

EMC-direktiv:

89/336/EEC

Lågspänningsdirektiv:

73/23/EEC

Ljudttryknivådirektiv:

2000/14/EC

Type:

200/230/240/250/270

This machine was manufactured in conformity with the
following directives:
Machine directive:

98/37/EEC

EMC-directive:

89/336/EEC

Low voltage directive:

73/23/EEC

Sound pressure level directive:

2000/14/EC

Typ:

200/230/240/250/270

Diese Maschine wurde gemäß den folgenden Richtlinien
Hergestellt::
Maschinenrichtlinie:

98/37/EWG

EMV-Richtlinie:

89/336/EWG

Niederspannungsrichtlinie:

73/23/EWG

Schalldruckpegelrichtline:

2000/14/EC

Type:

200/230/240/250/270

Cette machine a été fabriquée conformément aux directives sui-

vantes:

Réglementation machine:

98/37/CEE

Réglementation CEM

89/336/CEE

Règlement basse tension:

73/23/CEE

Règlement la émission acoustique:

2000/14/EC

Type:

200/230/240/250/270

Deze machine is vervaardigd overeenkomstig de volgende richt-
lijnen:
Machine richtlijn:

98/37/EEC

EMC-richtlijn:

89/336/EEC

Laagspanning richtlijn:

73/23/EEC

CE Richtlijn peil van akoestiche:

2000/14/EC

Tipo:

200/230/240/250/270

Esta máquina ha sido fabricada en conformidad a las
siguientes normativas:
Normativa de la máquina:

98/37/CEE

Normativa EMC:

89/336/CEE

Normativa sobre baja tensión:

73/23/CEE

Normativa sobre emisión acústica:

2000/14/EC

Tipo:

200/230/240/250/270

Esta máquina foi fabricada em conformidade com as
seguintes directrizes:
Directriz de maquinaria:

98/37/CEE

Directriz EMC:

89/336/CEE

Directriz de baixa voltagem:

73/23/CEE

Directriz sobre nivel de poténcia acústica:

2000/14/EC

∆‡Ô˜

200/

230/240/250/270

∆Ô ÌË¯¿ÓËÌ· ¤¯ÂÈ Î·Ù·ÛÎÂ˘·ÛÙÂ› Û‡ÌÊˆÓ· ÌÂ ÙÈ˜ ·Ú·Î¿Ùˆ

ÚÔ‰È·ÁÚ·Ê¤˜:

¶ÚÔ‰È·ÁÚ·Ê‹ ÌË¯·Ó‹Ì·ÙÔ˜:

98/37/CEE

¶ÚÔ‰È·ÁÚ·Ê‹-∂ª

89/336/CEE

¶ÚÔ‰È·ÁÚ·Ê‹ ¯·ÌËÏ‹˜ Ù¿ÛÂˆ˜:

73/23/CEE

¶ÚÔ‰È·ÁÚ·Ê‹ ÛÙ¿ıÌË˜ ıÔÚ‡‚Ô˘

2000/14/EC

FIN

Typ:

200/230/240/250/270

Laite on valmistettu seuraavissa direktiveissä olevien määritte-
lyjen mukaisesti
Laitedirektiivi:

98/37/EU

Direktiivi, joka käsittelee sähkömagneettista
yhteensopivuutta:

89/336/EU

Pienjännitedirektiivi:

73/23/EU

Direktiivi taattu äänitehon taso

2000/14/EU

Stefan Nybonn

June 12th 2002

Gerni A/S (Nilfisk-Advance A/S), Myntevej 2, DK-8900 Randers, Denmark

Int. telephone: +45 89 12 22 00 Int. telefax: + 45 86 43 14 81

ENGLISH

Introduction

Safety instructions

Description

Functions of the driving handle

Operating and starting guide

30 - 31

High pressure hose

Fine sand filter

Adjustable nozzle

Turbo Laser

SPECTRUM

Starting

Stopping

Detergent application

Maintenance

Oil change

Water filter

Turbo Laser

Frost protection

Cleaning

Disassembly / Disposal

Check list for maintenance

Fault finding

32 - 33

Technical data

EC Declaration of Conformity

Wiring diagram

75 - 77

Spare parts survey

Functional diagram

Drawing No. 2

INTRODUCTION

We congratulate you on your choise of new high pressure clea-
ner.
We are confident that the product will fully meet your expecta-
tions. It has been designed and produced by one of Europe’s
leading manufacturers of high pressure cleaners. Gerni A/S
caters for all industries with a complete programme of cold and
hot water cleaners as well as a wide assortment of accessories.

To secure full benefit from your high pressure cleaner, we ask you
and other possible operators to study the following operating
guide. The operating guide should be regarded as an integral
part of the high pressure cleaner and should always be available
to the operator. The operating guide briefly explains the construc-
tion and the operation of the high pressure cleaner.

The high pressure cleaner is built for fast and simple operation.
Should problems occur which you cannot solve yourself by
means of the operating guide, we ask you to contact our service
department whose experience and expertise is at your disposal.

By following this operating guide, you will enhance the economi-
cal and safe operation of your high pressure cleaner. In the same
way as with a car, the high pressure cleaner’s operational life will
be prolonged and the performance will be more effective, if the
cleaner is maintained and serviced according to the operating
guide.

In the operating guide the picture references are marked as (2.6)
meaning that reference is made to photo No. 2 and object No. 6
(in this instance: the high pressure hose).

Type: .................................................................................................

No.: ..................................................................................................

Date of purchase: ............................................................................

SAFETY INSTRUCTIONS

For the benefit of the operator and his/her surroundings, the fol-
lowing safety instructions must be carefully observed.

The high pressure cleaner must be earthed according to
regulations. To ensure reliable operation the earth con-
nection contact resistance must not exceed 50 ohms.

Never exceed the maximum pressures and temperatures
indicated on the machine plate.

In case of operational failures or when repairing - switch
off the high pressure cleaner at the mains switch and turn
off the water supply.

After operation - switch off the high pressure cleaner at
the main switch and turn off the water supply. Always lock
the pistol with the safety device on the trigger when you
leave the high pressure cleaner.

Use only Gerni A/S/ Nilfisk high pressure hoses. Do not
use non-Gerni /Nilfisk high pressure hoses as they do not
comply with the safety standards required by Gerni A/S.
Never attempt to repair defective high pressure hoses
yourself.

The water jet is delivered from the nozzle at high speed.
Therefore, never aim the jet in the direction of people, ani-
mals, electric installations or electrical conductors.

Leaks may be dangerous - contact our service depart-
ment.

It is recommended that protective clothing be worn to
avoid accidental spraying of unprotected skin.

Lance and pistol should always be held with both hands.

10.

Never attempt to exchange the pistol or disconnect the
hoses before the high pressure cleaner has been
switched off and the pressure has been relieved.

11.

Never allow children or unauthorised personnel to oper-
ate the high pressure cleaner.

12.

Extension cable, plug and plug socket should be impervi-
ous to water.

DESCRIPTION

Your new high pressure cleaner is constructed as shown in the
functional diagram and drawing No. 2. The machine consists of
an electric motor (2.1), which drives the high pressure pump
(2.2).
Through the water filter (2.4) the pump sucks the water from the
water inlet (2.3) into the cylinder head. The pump pressurises the
water and forces it out through the pressure outlet (2.5), into the
high pressure hose (2.6), to the pistol (2.7), and out through the
Turbo Laser nozzle (2.8).

The pressure of the high pressure cleaner can be read on the
pressure gauge (230A/250A/270A) (2.10). If the water pressure
exceeds the normal working pressure, the built-in safety valve
(2.12) will open the by-pass and thereby prevent damage to the
high pressure cleaner.

When the pistol trigger is released, the motor will stop.
Detergent is added through the detergent hose from an external
tank. Adjustment of the concentration continues on the dosing
valve (2.15).

NB! When the high pressure cleaner is supplied with hot water
above 30°C, the pump must not suck water from a tank or the like,
but should be fed with pressure. At temperatures between 30 and
40°C, this pressure should be min.1 bar - between 40 and 60°C:
min. 3 bar.

2.1 Electric motor
2.2 Pump
2.3 Water inlet
2.4 Water filter
2.5 Pressure outlet
2.6 High pressure hose
2.7 Pistol
2.8 High pressure nozzle
2.9 Lance head
2.10 Pressure gauge (230A/250A/270A)
2.11 Micro switch
2.12 Safety valve
2.13 Detergent injector
2.14 Non-return ball valve
2.15 Dosing valve for detergent
2.16 Detergent hose
2.17 Switch (start/stop)

Placing of high pressure

hose/electric cable

Placing of detergent tank

Placing of additional lance

(Turbo Laser)

Placing of additional lance

(standard lance)

Placing of additional lance

(double lance)

FUNNCTIONS OF

THE DRIVING HANDLE

Besides functioning as holder for pistol and lance, more
holders are carrying for extra equipment on the driving
handle.

The holders can be used according to the illustrations
below.

OPERATING AND

STARTING GUIDE

High pressure hose

Your new high pressure cleaner is equipped with a heavy duty
high pressure hose. Do not attempt to pull at the high pressure
hose when moving the high pressure cleaner. Be careful not to
run over or in any other way damage the high pressure hose. The
warranty does not cover broken hoses or hoses which have been
run over.

Fine sand filter

If you use water containing floating sand, we recommend that you
mount a fine sand filter. The filter element is changed according to
need. If a fine sand filter is not mounted, the fine sand may get in
the valves of the pump and cause damages on the safety valve,
cylinder head and possibly the Turbo Laser. This is not covered
by the guarantee.

Adjustable nozzle (N/G-230A/240A/250A)

The nozzle has three important functions:

Operation at low pressure (with fluid detergent).

To choose low pressure the head of the lance is pushed
away from the pistol (fig. a).

Operation at high pressure (for powerful wash and rins-
ing).

To choose high pressure the head of the lance is pulled
towards the pistol (fig. b).

Adjustment of the fan from concentrated (c) to fan-
shaped (d).

Turbo Laser (N/G-250) (N/G-230A 100/110V)

The high pressure cleaner is also equipped with a Turbo Laser
lance for highly improved cleaning efficiency (see technical data).

SPECTRUM

(N/G-270)

The high pressure cleaner is provided with a lance with a high
efficient high pressure

SPECTRUM

nozzle which performs a

cleaning efficiency higher than traditional flat jet nozzles. Further-
more, the N/G-270 is provided with a handle for pressure regula-
tion and for application of detergents.

Starting

If you require the high pressure cleaner to work with an action
radius larger than its standard, you should lengthen the high pres-
sure hose and not the electric cable. If you still wish to extend the
electric cable the dimensions should be as follows:

Length of cable

cross-sectional area

max. 12 m

min. 1.5 mm2

max. 20 m

min. 2.5 mm2

max. 30 m

min. 4.0 mm2

The high pressure cleaner must be situated as far away from the
cleaning site as possible.

Connect the electric cable. Note the rated voltage and
amperage of the high pressure cleaner :

Model

230

240

250

270

1x100V, 50/60Hz

14A

1x110V, 50Hz

13A

1x230/240V, 50Hz 10A

9,5

13/12A

1x230/240V, 60Hz

13/12A

3x230V, 50Hz

10.5A

3x400/415V, 50Hz

Connect the high pressure hose to the pressure outlet
(2.5). Flush the water supply hose through and connect it
to the water inlet (2.3). The hose must be min. 1/2”(N/G-
270: min. 3/4”).
The water supply pressure must be max. 10 bar during
operation.
Make sure the dosing valve (2.15) is in position “0”
(closed).
Turn on the water.

3..

Start the machine and let water run through the pistol.
Activate the pistol a few times and check that no air is
present in the system (when the water flow is steady and
not knocking). Then mount the lance on the pistol.

Activate the pistol (2.7) and let the high pressure cleaner
run till stable pressure is obtained (complete bleeding).
Now the high pressure cleaner is ready for use and by
means of the adjustable nozzle the raditation angle can
be adjusted (please see fig. c+d, page 8).
On the

SPECTRUM

lance (N/G-270) and the Turbo Laser,

the pressure is regulated on the handle to the double
lance.

OPERATING AND

STARTING GUIDE

Stopping

To stop the high pressure cleaner, turn the selector switch (2.17)
to pos.”0”. Switch off the power for the high pressure cleaner at
the main switch and turn off the water supply.
Always lock the pistol with the safety device on the handle when
you put down the lance. This will prevent any unauthorised per-
sonnel from immediately using the high pressure cleaner.

Detergent application

Use only high pressure detergent which has been developed
specifically for use in high pressure cleaners. It is economical in
use and is gentle on the cleaning object and the high pressure
cleaner.

Place the detergent hose with the detergent filter in the
tank containing high pressure detergent. Check that the
detergent covers the filter completely.

Open the head of the lance (2.9) on the nozzle by pulling
the cover from the pistol (please see fig. a, page 8). The
high pressure cleaner will automatically suck detergent
until the head of the lance is pushed back to the starting
point. The concentration can be adjusted on the dosing
valve (2.15).
On the

SPECTRUM

lance (N/G-270) and the Turbo Laser,

application of detergents can be carried out by turning
the regulation handle.

NOTE!

After use of detergents, clean water should be sucked

through the pump. Place the detergent filter in clean water, and let
the machine run for a few minutes.

MAINTENANCE

To obtain the optimum return and the longest possible life for your
high pressure cleaner, it is important to maintain the machine. We
recommend that you follow the following directions and refer to
the check list on the next page.

Oil change

Normally, it is not necessary to check the oil level of the pump
again. If it is, however, wished to be more careful with the pump,
oil replacement can proceed as follows:
-

dismount the body

unscrew the oil plug of the pump

drain the oil by placing the machine horizontally

add oil in level with the lower edge of the oil filling hole

(for oil type and quantity please see the technical data).

Water filter

Clean the water filter (2.4) as needed. Dismount the hose
screwed connection and remove the water filter.

Turbo Laser

Clean the filter in the Turbo Laser lance regularly. The filter is
mounted in the inlet opening to prevent particles such as calcium
and sand from entering the Turbo Laser where they may cause
increased wear, leaks or in serious cases operating malfunctions.
It may be necessary to change the filter. If so, put a screwdriver or
similar tool through the filter and pull it out. Mount the new filter
with an O-ring and press it into the opening of the Turbo Laser
lance. Make sure that the filter is placed with the largest contact
face towards the Turbo Laser head.

Frost protection

The best frost protection is to place your high pressure cleaner in
a frost free environment. If this is not possible, the high pressure
cleaner must be frost protected as follows:
Dip the water inlet hose in a container holding 5 litres of
antifreeze/water mix. Start the machine by turning the switch
(2.17) to pos. “I”, activate the pistol and let the machine run at low
pressure until anti-freeze comes out of the nozzle (2.8). Release
the pistol trigger a couple of times to frost protect the by-pass and
safety valves. The anti-freeze can be collected and used again.

Cleaning

Always keep your high pressure cleaner clean. This increases the
life and function of the individual parts considerably.

Disassembly/disposal

All replaced parts such as water filter, fine sand filter, Turbo Laser
filter as well as contaminated oil and anti-freeze must be handed
in to the local approved authority/institution for deposit/destruc-
tion.
When the high pressure cleaner is no longer to be used, the
detergent as well as pump oil must be drained off and delivered
in accordance with the above mentioned instructions. The high
pressure cleaner must likewise be handed in to the local,
approved institution for destruction.
Any replaced parts from service visits may be given to the ser-
vice personnel who will deliver them to the proper authority.

CHECK LIST

ACTION

WHAT/WHO

WHEN/HOW OFTEN

HOW

Instruct

New operator

Before operator uses

Let operator read

high pressure cleaner

instruction guide

Check

High pressure hose

During daily use

Leaks? - call
service engineer

Check

Pressure gauge

During daily use

Too high/too low? -
call service engineer

Check

Detergent suction

Daily - by means of

Lack of suction/leaks? -

detergent

call service engineer

Clean

Water filter

Weekly/as needed

See maintenance

Check

Gaskets

Every other month

Leaks? - call
service engineer

FAULTFINDING

SYMPTOMS

CAUSE

CORRECTIVE ACTION

High pressure cleaner

Switch not

Turn switch to pos. “1”.

does not start.

activated.

High pressure cleaner not

Insert the plug, switch on

connected to the power.

the main power supply.

Fuse burnt out.

Change fuse. If fuse burns out again,
contact service department.

High pressure cleaner

Fuse burnt out.

Change fuse. If fuse burns out again,

stops suddenly.

contact service department.

Low voltage.

Extension cable too long, or the
cable is underdimensioned
(please see survey).

Motor too warm.

Turn switch to pos. “0”
and wait 15 min. Restart the machine.

Operating pressure too high

Clean/change nozzle (see technical data).

(nozzle dirty, wrong nozzle).

FAULTFINDING

SYMPTOMS

CAUSE

CORRECTIVE ACTION

High pressure hose and

Air in the pump.

Tighten suction hose.

pistol shake.

Bleed the pump.

Lack of water.

Clean suction filter. Open tap comple-

tely.

The pump “hammers”

Nozzle partly blocked.

Clean the nozzle.

or pressure gauge oscil-
lates with open pistol.

Safety valve starts func-

Nozzle partly blocked.

Clean the nozzle.

tioning or high pressure
cleaner operates at too

Wrong nozzle.

Change nozzle (see technical data).

high a pressure.

No detergent added.

Detergent tank empty.

Fill up.

Dosing valve closed.

Open the valve.

Turbo Laser filter dirty.

Clean filter.

Detergent filter dirty.

Clean filter.

Nozzle does not tilt.

Turbo Laser dirty.

Take apart and clean Turbo Laser.

Turbo Laser filter

Clean/change the filter (see

dirty.

maintenance).

Wrong nozzle.

Change nozzle (see technical data).

Turbo Laser leaks.

The leak may seal itself by continued
usage.

Gaskets defective.

Change gaskets (Service kit).

High pressure cleaner

Lacks water.

Open the tap completely. Clean suction

does not operate at

filter.

max. pressure/pressure

Inlet water pressure too low.

oscillates.

The suction side of the

Check for leaks, tighten hose clamps.

pump leaks (takes in air).

Nozzle blocked.

Clean the nozzle.

Nozzle worn.

Mount new lance.

Air in the system.

Bleed the cleaner. Please see section
“start”, point 3+4.

Wrong nozzle/

Change nozzle. Note the type (see tech-

defective nozzle.

nical data).

N/G-230A

240A

N/G-250A

N/G-270A

1x100V

1x110V

1x230/240V 1x230/240v 1x230/240v 1x230/240v

3x230V

3x400/415V

50/60 Hz

50 Hz50Hz

50Hz

60Hz

50Hz

Pumpetryk

135

145

160

125

135

180

—-

190

200

370

350

480

600

570

700

0 - 10

0 -10

0 - 10

0 - 6

Rekylkraft, max.

16,2

Cylindre

stk.

Brydetryk, sikk

140

135

155

140

200

220

Pumpeolie 10W/40

0.11

Vandtilslutning

3/4

Tilgangstryk max.

Selvsug ***) m

Tilgangstemperatur

Strømforbrug A

9.5

13/12

10.5

Sikring

Motoreffekt optagen

1,3

2,2

2.2

2.7

3.5

Støjniveau

83/96

82/95

83/96

82/95

84/97

Dobbelt

1503.5

1503

——-

1503.5

1504

Dobbelt spulerø

4040

Dobbelt spul

15/40

——

15/40

El-kabel

Højtryksslange

Vægt

390

346

920

Model

Pump pressure

bar

Turbo pressure *)

ETP-bar

Water quantity

l/h

Detergent, max.

Recoil power, max.

Cylinders

pcs.

Breaking pressure, safety valve

bar

Pump oil 10W/40

Water connection

“

Inlet pressure, max.

bar

Self priming ***)

Inlet temperature, max.

°C

Power consumption

Fuse

Motor effect, input

Noise level

dB(A)(EN 60704-1)(EN ISO3746)

Lpa/Lwa

Double lance high pressure nozzle **)

dim.

Double lance low pressure nozzle **)

dim.

Double lance nozzle angles **)

Electric cable

High pressure hose

Weight

Width

Depth

Height

By use of Turbo Laser

**)

By use of double lance

***)

0 m ~ level of the machine

TECHNICAL

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N/G-270A N/G-250A 240A Hi-flow

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