Hozelock 7902 User manual

Hozelock 150 Pressure Washer - 7902
Hozelock UK Garden Irrigation & Automatic Watering Systems

7902
Hozelock Ltd.
Midpoint Park
Birmingham, B76 1AB. England
Tel: [phone]
[e-mail]
www.hozelock.com
33604-005
?
Heavy Duty
Pressure Washer 150
WARNING: Do not use the appliance
without reading this instruction sheet
month
guarantee
12

Contents
Assembly & Operation
E
HI
F
D
G
A
H I
J
CB
E
F
1
4
2 3

9
Ø12.5mm
B
C
2
1
X
H
6 7
810 11
12 13 14
15 16
17
18
5

Maintenance
J
19 20 21
Volt
230 2 x 1.5 mm 22 x 2.5 mm 2
1 ÷ 25 m 25 ÷ 50 m
22 Contents
AInstruction Booklet
BInlet Filter
CWaterstop Connector
DPressure Washer
EHandle & Fixing Screw
FReel Handle
GGun
HVariable Spray Lance
ITurbo Spray Lance
JNozzle Cleaning Tool
Read this manual through carefully before
installing/using the cleaner, paying special
attention to the SAFETY RULES/RESIDUAL RISKS.
To obtain the best performance from your
unit, read this booklet carefully and follow the
instructions each time you use the it.
•Thisapplianceisintendedfornon-professional
(domestic) use only.
Safety Rules/Residual Risks
SAFETY “DO NOTS”
High pressure jets can be dangerous if
subject to misuse. Do not direct the water jet
at people, animals, live electrical equipment
or the machine itself.
Do not use the machine within range of
people unless they wear protective clothing.
Do not direct the jet against yourself or
others in order to clean clothes or foot-wear.
Do not use the appliance outdoors in the
rain.
WARNING
Machine not suitable
for connection to potable mains water.
Never point the gun
at people, animals,
live electrical equipment
or the machine itself.

To avoid the risk of explosion, do not use the
appliance with inflammable or toxic liquids,
or any products which are not compatible
with the correct operation of the appliance.
High pressure washers must not be used by
children or persons with reduced physical,
sensory or mental capabilities, or lack of
experience and knowledge, unless they have
been given supervision or instruction
concerning use of the high pressure washers
by a person responsible for their safety.
Children should be supervised to ensure that
they do not play with the appliance.
High pressure hoses, fittings and couplings
are important for the safety of the machine.
Use only hoses, fittings and couplings
recommended by the manufacturer.
Do not operate the product if it has a
damaged power cord or plug. If the power
cord or plug is damaged, it must be replaced
by a suitably qualified person.
Do not use the appliance if the high pressure
hose, the gun, lances or nozzles are
damaged.
Do not touch the plug and/or socket with
wet hands.
Do not jam the trigger in the operating
position.
Check that the rating plate is affixed to the
appliance. If not, inform your dealer. Units
without plates must not be used as they are
unidentifiable and potentially dangerous.
Do not tamper with or alter the calibration
of the safety valve.
Do not alter the original diameter of the
spray head nozzle. May cause hazardous
alteration of operating performance.
Do not leave the appliance unattended
when it is in operation.
Do not move the appliance by pulling on the
electrical cable.
Make sure that cars do not drive over the
high pressure hose.
SAFETY “DO’s”
All electrical conductors must be protected
against the water jet. The mains plug and
the coupling between the extension cable
must be water tight and never lay in the
water.
The appliance MUST ONLY BE CONNECTED to
an adequate power supply in compliance
with all applicable regulations.
Use of a Safety Residual Device (RCD) will
provide additional protection for the
operator (30 mA).
Wear protective clothing and safety goggles
to protect against splashback.
Always disconnect the electricity supply
before starting to handle, clean, maintain,
repair or install this appliance. Maintenance
and/or repair of electrical components must
be carried out by qualified staff.
Before pressing the trigger, grip the gun
firmly to counteract the recoil.
Ensure that the pressure washer is connected
to the mains water supply in accordance with
local regulations
After use, turn off the mains switch and
water supply. Then squeeze the trigger to
depressurise the unit before disconnecting
the hose or gun. Failure to do so could result
in personal injury or machine damage due to
discharge of high pressure water.
Before every use check that the power cord,
plug and important parts such as the high
pressure hose, gun and safety devices are not
damaged.
Only use detergents which will not corrode
the coating materials of the high pressure
hose/electrical cable which have been
recommended by the manufacturer. The use
of other detergents or chemicals may
adversely affect the safety of the machine.
Ensure that all people or animals keep a
minimum distance of 16 yd. (15m) away.
Observe a distance of at least 30cm when
using the jet to clean painted surfaces, to
avoid damaging paintwork.
To ensure machine safety, use only original
spare parts from the manufacturer or
approved by the manufacturer.

Electrical Safety
If you have to replace the fuse, only those
that are ASTA or BSI approved to BS 1362
and with a rated current of 13 amps should
be used. If there is a fuse cover fitted, this
cover must be refitted after changing the
fuse. If the fuse cover is lost or damaged, the
plug must not be used. Spare fuse holders
and fuses are available from electrical
outlets.
If the power supply cord or plug becomes
damaged in any way, it should be replaced
by a suitably qualified person. A replacement
plug should be wired according to the
following instructions.
IMPORTANT THIS APPLIANCE MUST BE
EARTHED: As the colours of the wires in the
mains lead of this product may not
correspond with the colours or markings
identifying the terminals in your plug, you
should proceed as follows:
The green/yellow lead should be connected
to the EARTH terminal which may be marked
with an ‘E’ or coloured green or green/
yellow.
The wire that is coloured blue must be
connected to the NEUTRAL terminal which
may be marked with the letter N or coloured
blue or black.
The wire that is coloured brown must be
connected to the LIVE terminal which may be
marked with the letter L or coloured brown
or red.
If in doubt, contact a qualified electrician.
General Information
•Thismanualformsanintegralpartofthe
appliance and should be kept for future
reference. Please read it carefully before
installing/using the unit. If the appliance is
sold, the Seller must pass on this manual to the
new owner along with the appliance.
Disposing of packaging
•Please dispose of all packaging in an
environmentally responsible way.
Safety signs
•Comply with the instructions provided by the
safety signs fitted to the appliance. Check that
they are present and legible; otherwise, fit
replacements in the original positions.
Technical Information
Intended use
•This appliance has been designed for individual
use for the cleaning of vehicles, machines,
boats, masonry, etc, to remove stubborn dirt
using clean water and biodegradable chemical
detergents. Vehicle engines may be washed
only if the dirty water is disposed of as per
regulations in force.
•Intakewatertemperature:seedataplateon
the appliance.
•Intakewaterpressure:Max10bar,Min1bar.
•Operatingambienttemperature:above0°C.
The appliance is compliant with the
EN 60335-2-79/A1 standard.
Improper use
•Use by unskilled persons or those who have
not read and understood the instructions in
the manual is forbidden. The introduction of
inflammable, explosive and toxic liquids into
the appliance is prohibited.
•Useoftheapplianceinapotentially
inflammable or explosive atmosphere is
forbidden. The use of non-original spare parts
and any other spare parts not specifically
intended for the model in question is
prohibited. All modifications to the appliance
are prohibited. Any modifications made to
the appliance shall render the Declaration
of Conformity null and void and relieve the
manufacturer of all liability under civil and
criminal law.
Safety devices
CAUTION - DANGER! Do not tamper with or
adjust the safety valve setting.
•Thesafetyvalveisalsoapressurelimiting
valve. When the gun trigger is released, the
valve opens and the water recirculates through
the pump inlet.
•Safetybutton(X):preventsaccidentalspraying
ofwaterbypressingtheredsafetybutton(X)
into locking position (fig.11).
Installation
Assembly
CAUTION - DANGER! All installation and
assembly operations must be performed
with the appliance disconnected from the
mains power supply. As illustrated in the
Assembly & Operation’ diagrams.

Electrical connection
CAUTION - DANGER! Check that the
electrical supply voltage and frequency
(V-Hz) correspond to those specified on the
appliance data plate (fig.9). See Technical
Data. The appliance should only be
connected to a mains power supply
equipped with an adequate earth
connection and RCD (30 mA) to cut off the
electricity supply in the instance of a short
circuit.
Use of extension cables
•Usecablesfeaturing“IPX5”protectionlevel.
The cross-section of the extension cable should
be proportionate to its length; the longer it is,
the greater its cross-section should be. (fig.22)
•Foranextensioncableupto25mlong,ensure
that the cross sectional area of the cable core is
atleast1.5mm”.Forextensioncables25m-50m
long, ensure that the cross sectional area of
thecablecoreisatleast2.5mm”.Donotuse
extension cables longer than 50m.
Water supply connection
Caution - Danger! Only clean or filtered
water should be used for intake. Please note
the max input pressure. Place the appliance
as close to the water supply system as
possible.
Connection to the mains water supply
•Theappliancecanbeconnecteddirectlyto
the mains drinking water supply only if the
supply hose or tap is fitted with a backflow
preventer valve. If one is not present, or if
you are unsure, fit a backflow preventer valve
(such as the Hozelock Non-Return Valve 2181)
as per current regulations in force. Make sure
that the hose is at least Ø12.5 mm and that it is
reinforced.
Note: Water that has flown through backflow
preventers is considered to be non-potable.
Using Your Pressure Washer
Controls
CAUTION - DANGER! During operation the
appliance must be positioned as shown in
(fig.12) on a sturdy, stable surface.
Start-up
CAUTION - DANGER! Before starting up the
appliance check that the water supply hose
is connected properly; use of the appliance
without water will damage it; do not cover
the ventilation grills when the appliance is
in use.
•Ensurethatthehosereelhandleisinthe
unlocked (pulled outwards) position (fig.6).
•Pulloutthehose.Thehosereelandhandlewill
rotate. For best results we recommend that the
hose is fully unwound before use.
•Pushthehosereelhandleinsothatthehose
reel locks (fig.7). This ensures that the hose
reel will not unwind more hose than you need
while using the pressure washer.
•Turnonthewatersupplytapfully.
•Ensurethattheredsafetybutton(X)is
released (fig.11).
•Depresstheguntriggerforafewsecondsand
start up the appliance by setting the ON/OFF
switch to ON/1.
•ThismodelincorporatesaTotalStopSystem
(TSS system), with an automatic delivery flow
cut-off system:
•Whentheguntriggerisreleasedthedynamic
pressure automatically cuts out the motor.
•Whentheguntriggerisdepressedthe
automatic drop in pressure starts the motor
and the pressure is restored after a very slight
delay (see fig.11).
•IftheTSSistofunctioncorrectlyallgun
releasing and depressing operations must be
performed at intervals over 4-5 seconds.
DO NOT PULSE THE TRIGGER.
•Topreventdamagetotheappliance,when
running do not stop the water jet for more
than 10 minutes at a time. If the product is
not used for more than 10 minutes please
ensure that the on/off switch is switched to off
(OFF/0) to prevent damage to the appliance.
Adjusting the spray nozzle
•Waterowisadjustedbyregulating
the nozzle (H).
Stopping the appliance
•SettheON/OFFswitchtoOFF/0.
•Depresstheguntriggeranddischargethe
residual pressure inside the hoses.
•Engagethegun’sreadsafetybutton(X)
(fig.11).
Restarting
•Releasethegun’sredsafetybutton(X)(g.11).
•Ensurewaterisconnected.
•Depresstheguntriggeranddischargethe
residual air inside the hose.

•Settheon/offswitchtoON/1(g.10).
Storage
•Switchtheapplianceoff(OFF/0)(g.14).
•Removetheplugfromthesocket.
•Turnoffthewatersupplytap.
•Dischargetheresidualpressurefromthegun
by pressing the trigger, until all the water has
come out of the nozzle.
•Disconnectthehighpressurehosefromthe
gun by unscrewing the nut and remove (fig.17).
•Ensurethatthehosereelhandleisinthe
unlocked (pulled outwards) position (fig.6).
•Windthehandleclockwisesothatthehose
winds onto the reel.
•Pushthehosereelhandleinsothatthehose
reel locks (fig.7).
•Engagethegun’sredsafetybutton(X)(g.11).
•Returntheguntoitsstorageposition.
Filling and using detergent
•Unscrewthedetergenttanklid(g.15).
•Fillthetankwithhighlydegradabledetergent
mixed with water as recommended on the
detergent’s directions (fig.16) and screw on the
lid.
•Theseconddetergenttankcanbelledin
the same way with more detergent or an
alternative detergent for different application.
•Selectthedetergenttankyouwishtouseby
twisting the selector knob left or right.
•Tode-selectdetergentapplication,ensure
at least 1 detergent tank is empty and turn
the detergent selector knob to the empty
detergent tank.
Using detergent feature
•Maximumcleaningisachievedbyapplying
the detergent mixed with water to the surface
while still dry. When applying detergent
push the nozzle forward (Fig.13) so that the
detergent is applied at low pressure. When
dealing with vertical surfaces work from the
bottom upwards. Leave the detergent to act
for 1-2 minutes but do not allow the surface
to dry. Starting from the bottom, use the high
pressure jet by pulling the nozzle backward
(Fig.13) at a minimum distance of 30cm. Do not
allow the rinse water to run onto unwashed
surfaces.
Maintenance
Any maintenance operations not covered by
this chapter should be carried out by a qualified
engineer.
CAUTION - DANGER! Always disconnect the
plug from the power socket before carrying
out any work on the appliance.
Cleaning the nozzle
•Disconnectthelancefromthenozzle.
•Removeanydirtdepositsfromthenozzlehole
using the tool (J). As shown in (fig.19).
Cleaning the filter
•Cleanthesuctionlterafterevery5hoursof
operation or as required, as shown in
(figs.20 & 21). The cleaning interval required
will vary on the hardness of your water so you
should inspect the filter regularly.
End-of-season storage
•Ensurethereisnoresidualwaterleftinthe
appliance and protect against frost.
Troubleshooting
Problem Possible
Causes Remedy
Pump does
not reach
working
pressure
Nozzle worn Replace nozzle
Water filter
blocked
Clean filter
(figs.20 & 21)
Water
supply
pressure low
Turn on water
supply tap fully
Air being
sucked into
product
Check tightness of
hose fittings
Air in pump Switch off the
appliance and
keep de-pressing
and releasing the
gun trigger until
the water comes
out in a steady
flow. Switch the
appliance back on
again
Adjustable
nozzle not
positioned
correctly
Turn the adjustable
nozzle (+) (fig.13)

Problem Possible
Causes Remedy
Pressure
drops
during use
Water
intake from
external
tank
Connect appliance
to the mains water
supply
Intake water
too hot
Reduce
temperature
Nozzle
clogged
Clean nozzle (fig.19)
Motor
‘sounds’
but fails to
start
Insufficient
power
supply
Check that the
voltage of the
mains power supply
line is the same as
that on the plate
(fig.9)
Voltage loss
due to use
of extension
cable
Check
characteristics of
extension cable
Appliance
not used for
along period
of time
Contact Hozelock
Consumer Services
on 0121 313 1122
Problems
with TSS
device
Contact Hozelock
Consumer Services
on 0121 313 1122
Motor fails
to start
No electrical
power
Check that the
plug is firmly in the
socket and that
the mains voltage
supply is present
Problem
with TSS
device
Contact Hozelock
Consumer Services
on 0121 313 1122
Water
leakage
Seals worn Contact Hozelock
Consumer Services
on 0121 313 1122
Appliance
noisy
Water too
hot
Reduce
temperature
(see technical data)
Oil leakage Seals worn Contact Hozelock
Consumer Services
on 0121 313 1122
Motor
starts even
with gun
trigger is
released
Nozzle
clogged
Clean nozzle (fig.19)
High
pressure
system
or pump
hydraulic
circuit not
watertight
Contact Hozelock
Consumer Services
on 0121 313 1122
Problem Possible
Causes Remedy
No water
delivery
when gun
trigger is
depressed
(with
supply
hose
connected)
Nozzle
clogged
Clean nozzle (fig.19)
If the motor starts and does not restart during
operation, wait 2-3 minutes before repeating
the start-up procedure (overload cutout has
been tripped).
If the problem recurs more than once, call
Hozelock Consumer Services on 0121 313 1122.

Technical Data*
Technical Data Unit 7902
Output L/min 5.7
Maximum Output L/min 6.8
Pressure MPa 11
Maximum Pressure MPa 15
Power kW 2.1
Tº input (max.) ºC 50
Maximum input pressure MPa 1
Recoil force of the gun at
maximum pressure N11.5
Motor Insulation - Class F
Motor Protection -IPX5
Voltage V/Hz 230-
240/50
Sound Level: **(K = 3dB(A))
LPA (EN 60704-1)
LWA (EN 60704-1)
dB (A)
dB (A)
75.6
84
Unit Vibrations ***(K = 1.5m/s²) M/s21.75
Net Weight kg 18.2
Weight (Packed) kg 24
* Subject to technical modifications
** The sound intensity level for the operator may exceed
75.6dB and ear protection measures are necessary.
*** The declared vibration value has been measured in
accordance with a standard test method and may be used
for comparing one tool with another. The declared vibration
value may also be used in a preliminary assessment of
exposure.
WARNING! The vibration emission value during actual use
of the tool can differ from the declared value depending on
the ways in which the tool is used. Identify safety measures
to protect the operator that are based on an estimation of
exposure in the actual conditions of use (taking account of
all parts of the operating cycle such as the times when the
tool is switched off and when it is running idle in addition to
the trigger time).
Warranty
This Hozelock product is covered under
guarantee to be free of defective parts and
materials for a period of 1 year from the date of
purchase, providing that the product is used for
normal domestic purposes.
The guarantee runs for 1 year after purchase
provided that;
•Youhavefollowedtheinstallationand
operating instructions.
•Youconsultourhelpline(01213131122)early
enough for any problems to be put right.
The guarantee covers materials, construction
and conformity defects during the guarantee
period, during which time the manufacturer
will authorise the replacement or refund of a
defective unit, at the point of purchase. This
does not affect your statutory rights.
The guarantee does not cover defects caused by
or resulting from:
•Incorrectuse,abuseorneglect
•Trade,professionalorhireuse
•Failuretoserviceandmaintaintheunitas
specified in the user’s manual
•Unauthorisedrepairs
•Useofnon-originalaccessories/spareparts
•Frost–thismachineandallaccessoriesmustbe
protected from frost
•Damagedcausedbyforeignobjects,
substances or accidents
Please keep your receipt as proof of purchase.
If your product is not working properly, please
contact us on 0121 313 1122.
SERIAL
NUMBER
XXXXX XXXXX
MODEL
NUMBER

PLEASE NOTE:
Your appliance contains valuable
materials which can be recovered
or recycled. Leave it at a local civic
waste collection point.
Declaration of Conformity
Hozelock declare that the following
Hozelock Pressure Washers:
•HeavyDutyPressureWasher150(7902)
Comply with the requirements of:
•2006/95/EC–LowVoltageDirective
•2004/108/EC–EMCDirective
•2006/42/EC-MachineryDirective
•2000/14/EC–OutdoorNoiseDirective
and conform to the following harmonised
European standards:
•EN60335-1:2002+A1:2004+A11:2004
+A12:2006+A13:2008
•EN60335-2-79:2009
•EN62233:2008
•EN55014-1:2006
•EN55014-2:1997+A1:2001
•EN61000-3-2:2006
•EN61000-3-3:1995+A1:2001+A2:2005
•EN60704-1:1997
Measured Sound Power level: 82.5 dB(A)
Guaranteed Sound Power Level: 84 dB(A)
The conformity assessment method was
according to Annex V of the directives.
Place of Issue: Sutton Coldfield, England
Date of Issue: 29th December 2009
Signed: ………………………………..
Nick Iaciofano
Director of Engineering, Hozelock Ltd.
Midpoint Park, Birmingham. B76 1AB.

Hozelock Ltd.
Midpoint Park
Birmingham, B76 1AB. England
Tel: [phone]
[e-mail]
www.hozelock.com
33604-005