Clarke Power Wash EHD130 Installation and operation manual

POWER WASHER
MODELS EHD 130, 160 & 170
OPERATING & MAINTENANCE
INSTRUCTIONS 0205
PART Nos. 7330560 , 7330565 & 7330570
POWER WASHER
MODELS EHD 130, 160 & 170

Thank you for purchasing this CLARKE HEAVY DUTY POWER WASHER.
This machine is a portable, high pressure power washer, designed for professional
use, in garages, factories, farms etc.
It comprises an electric motor, a pump, a high pressure hose with a trigger and
lance, and an adaptor for injecting foam or cleaning agents into the water jet,
ideal for cleaning greasy engines and equipment, removing oil spots from
forecourts etc.
Before attempting to use your Power Washer, please read this instruction manual
thoroughly and follow all instructions carefully. By doing so you will ensure the
safety of yourself and that of others around you, and you can look forward to the
Power Washer giving you long and satisfactory service.
GUARANTEE
This CLARKE product is guaranteed against faulty manufacture for a period of 12
months from the date of purchase. Please keep your receipt as proof of purchase.
This guarantee is invalid if the product is found to have been abused or tampered
with in any way, or not used for the purpose for which it was intended.
Faulty goods should be returned to their place of purchase, no product can be
returned to us without prior permission.
This guarantee does not effect your statutory rights.
2
CONTENTS
Safety Precautions ....................................................................... 3
Electrical Connections ................................................................ 4
Assembly and Preparation for Use ............................................ 5
Operation ..................................................................................... 6
Setting Water Pressure ................................................................ 7
Shutting Down the Machine ....................................................... 8
Maintenance ............................................................................... 8
Troubleshooting ........................................................................... 9
Parts Diagrams ........................................................................... 10
Accessories ................................................................................13
Specifications .............................................................................13
When disposing of this product, do not dispose of with general waste. It must be disposed of according to the laws
governing Waste Electrical and Electronic equipment, at a recognised disposal facility.

3
SAFETY PRECAUTIONS
WARNING
Water at high pressure can be dangerous and may cause severe damage to
persons or property if subject to misuse.
NEVER allow anyone to operate this equipment unless they are thoroughly
reliable, and completely familiar with the safety precautions.
1. Never direct the spray jet at any person or animal.
2. Never hold a finger over the high pressure nozzle.
3. Never direct the spray jet at the machine itself
or any other electrical equipment.
4. After use, and before disconnecting hoses,
release the pressure in the high pressure hose
by operating the trigger. Do not attempt to
disconnect any hose or coupling with pressure still in
the hose.
5. Never operate the machine with any of the covers removed.
6. Do not, attempt any electrical or mechanical repair. If you have a problem
with your machine contact your local dealer or Clarke Customer Services
Dept., tel: [phone]
7. Never supply any liquid other than water to the water inlet.
8. Use only chemical cleaning agents (detergents) approved for power washing
when using the chemical injection facility.
9. Never use the chemical injection facility to introduce solvents, e.g. paint
thinners, petrol, oil, etc.
10. Do not operate the machine whilst standing on ladders: use a platform tower
or scaffolding.
11. Children should NOT be allowed to use the machine.
12. You should always wear the appropriate protective clothing and non-slip shoes
when operating this machine. We also recommend the use of safety goggles
for any application where loose particles of stone or grit etc. may be blown
around by the high pressure spray.
13. When not in use, disconnect from the electrical supply and disconnect the
hoses from the machine, ensuring they are drained of water. Store in a dry,
frost free environment. Failing this, ensure the pump is filled with anti freeze.
(See Maintenance)
14. Disconnect from the mains supply before carrying out any maintenance or
servicing.
15. Never pull the washer by the power cable, or yank the cable it to disconnect
from the socket. Keep the cable away from heat, oil or sharp edges.

4
ELECTRICAL CONNECTIONS
WARNING: THIS MACHINE MUST BE EARTHED.
EHD130
Connect the mains lead to a standard, 240 Volt (50Hz) electrical supply through a
suitably fused isolator switch, preferably via a Residual Circuit Breaker (RCB).
NOTE: A domestic 13 amp, BS1360 plug must NOT be used with this machine.
IMPORTANT: The wires in the mains lead are coloured in accordance with the
following code:
Green & Yellow - Earth
Blue - Neutral
Brown - Live
FUSE RATING: The fuse rating for this appliance is 15 amps
EHD160 & 170
This model must be connected by a qualified electrician, to a suitably fused 400V,
3 PHASE supply preferably via a Residual Circuit Breaker (RCB).
IMPORTANT: The wires in the mains lead should be wired up in accordance with the
following colour code:
Connect GREEN & YELLOW coloured cord to the earth terminal marked with
a letter “E” or Earth symbol “ ”.
Connect the BROWN, BLUE and BLACK conductors, one to each phase.
FUSE RATING: The fuse rating for this appliance is 15 amps
EXTENSION CABLES
If an extension cable is used, always ensure it is fully unwound. When used
outdoors, ensure the extension cable is specifically designed for outdoor use.
The length of the extension cable should not exceed 25 metres and the wire sizes
in the cable should be at least 2.5mm2in cross section.
IF IN DOUBT, CONSULT A QUALIFIED ELECTRICIAN.
Do not attempt any electrical repairs yourself.

high pressure
hose
pressure
regulator
5
ASSEMBLY AND PREPARATION FOR USE
The machine is fully assembled except for the lance and hose
connections
The high pressure hose is attached to the
lance just forward of the trigger assembly, the
other end to the high pressure outlet at the
front of the machine. Take care not to cross
thread the BSP threads.
The low pressure water inlet is located
adjacent to the high pressure outlet, that is,
to the left front of the machine, looking from
the front. (see Fig.2)
The lance is in two sections, assemble
by screwing the two halves together.
A 3/4” BSP adapter with a 1/2” hose
connector is provided, so that a suitable
hose (not supplied), may be attached,
with a worm drive clip (not supplied), or a
quick fit coupling (available from most
hardware or DIY stores), and connected
to your water supply.
We recommend that you connect a filter
(arrowed In Fig.4) to the inlet hose, to
prevent the possibility of foreign bodies
entering and damaging the pump.
Only use a CLEAN water supply.
High Pressure Outlet
Fig.1
Fig.2
Fig.3

6
If you intend to use the chemical injection facility,
fill the detergent tank with the requisite detergent.
The filler cap is located directly beneath the
handle (fig.4)
IMPORTANT:
Use ONLY those detergents specifically designed
for use with Power Washers. We recommend the
use of CLARKE Traffic Film Remover, which is a
powerful low foaming agent for car cleaning,
patio cleaning etc., or CLARKE Wash & Wax, both
available from your CLARKE dealer.
N OTE: The chemical injection facility will ONLY
operate at the LOW pressure setting. (See
‘Operation’)
Fig.4
OPERATION
• Make certain the PUMP ON/OFF switch is set in the OFF position.
The ON/OFF switch is mounted on the top panel.
• Turn the water tap fully on.
• Start according to the following procedure:
a. In order to ease the starting process, and to prevent the possibility of
blown fuses, pull the trigger on the lance - it may be necessary to release
the safety latch in order to do so.
b. Hold the trigger in that position whilst switching the pump ON, and allow
the pump to run for a few moments to develop full pressure.
c. You may release the trigger once full pressure is developed.
The amount of detergent that enters the system
may be regulated by turning the knurled ring,
arrowed in fig.5.
Turning the ring clockwise - decreases, and
turning anticlockwise - increases the amount of
detergent injected.
Maximum, provides a mixture strength of approx.
15:1 - approx. 1000:1
Fig.5

7
In doing so the pump will stop and start again when the trigger is pulled once
again.
For the reasons given above, it is recommended that you ALWAYS set the lance to
its LOW PRESSURE setting before switching ON.
WARNING
Ensure the operator is aware that when the trigger is pulled, water at
high pressure can cause the lance to kick - it should therefore be held firmly. In
addition, care must be taken to ensure that the nozzle is NOT aimed at an area
where the water jet will cause damage. i.e. away from people, animals, windows
- greenhouses etc., and be aware that splash back could also cause damage if
the jet is trained on a nearby wall etc.
If you wish to use the chemical injection facility, note that it will ONLY operate at
LOW pressure.
Turn the pressure control handle to its’ LOW pressure setting. When you pull the
trigger, detergent will be drawn up into the water flow.
NOTE: Water pressure is regulated by
turning the adjuster handle located in the
middle of the lance and which doubles
as a hand grip, ANTICLOCKWISE to
INCREASE pressure and CLOCKWISE to
DECREASE, (looking from the handle end) .Forwards (anticlockwise)
to INCREASE pressure
In the event that you switch the machine OFF, but
intend to continue with its use after a few minutes
or so, DO NOT depress the trigger, but set the safety
latch (arrowed in fig.7) to prevent it from being
accidentally pulled. This will ease and assist the
subsequent restarting of the motor as pressures will
remain equalised on either side of the pump,
thereby reducing the load on the motor when
restarting.
NEVER attempt to run the machine with water supply disconnected or turned off.
It is recommended that whenever possible, a screen or partition be erected
between the washer and the wash area, to prevent accidental spraying of the
machine. Any moisture entering the machine could cause serious damage.
Fig.6
Fig.7

SHUTTING DOWN THE MACHINE
If the chemical injection facility has been used, disconnect the plastic tube from the
pick-up, and turn the pressure adjuster on the lance to HIGH pressure. Allow the pump to
run for a short while to cleanse the hose and lance, then switch OFF the pump.
Switch OFF at the mains electrical supply, and turn OFF the water supply -
disconnect where appropriate.
IMPORTANT: Operate the lance trigger once more to ensure there is no pressure in
the high pressure hose.
NEVER disconnect the high pressure hose unless you have operated the trigger.
AFTER EACH USE
When using chemical detergents,
always ensure the system is
thoroughly flushed out after use as
described previously.
Ensure the hoses and power cable
are coiled and properly stowed. DO
NOT allow them to be left casually, in
a heap. This invites damage and will
cause rapid deterioration.
STORAGE
Store the Washer in an horizontal position, preferably under cover, protected from
the elements.
If there is a danger of freezing, the pump should be filled with antifreeze by inserting
the inlet and outlet hoses into a bucket of antifreeze as shown in the diagram,
start the machine and allow the antifreeze to circulate. After a short time stop the
machine using the procedure outlined on page 6, and store the machine with
the antifreeze still within the pump body.
NOTE:
If you experience difficulty in starting the motor following a long period of storage,
it is possible that the seals within the pump have dried out and are gripping the
pistons. This problem may be alleviated by storing the machine with antifreeze
within the pump body, as described above.
MAINTENANCE
WARNING: Ensure the plug is removed from the socket before carrying out any
adjustment, servicing or maintenance.
Fig.8
8

Pressure drop
Pressure fluctuations or
pressure drop
Oil leak
Motor does not start
when switched on
Motor hums when
switched on and does
not start
Motor cuts out
Additives are not being
supplied
Air in system
Worn high pressure nozzle.
Pressure regulator incorrectly
set
No water
Water supply hose too long/
too small diameter
No water due to clogged
filter
Worn seals
Plug is not connected
properly.
Mains fuse switched off
Mains voltage too low
Incorrect dia cable resulting
in voltage drop
Trigger Switch not operated
Motor protection switch has
been activated due to
overheating or overload of
motor
Nozzle clogged
Injector clogged
Additive container empty
Lance and/or detergent flow
regulator not correctly set
Bleed the system by quickly
operating trigger several times. If
necessary operate the machine
briefly without the high pressure
hose connected.
Renew nozzle
Set to required working pressure
by turning hand grip
Turn on water tap
Use minimum 1/2" diameter
water supply hose
Clean water filter (never operate
without filter)
Contact your CLARKE Distributor
Check plug and lead and have
them replaced by a qualified
electrician if necessary
Switch on mains fuse
Check electrical connection
Use correct diameter of cable
Operate trigger
Ensure supply voltage and unit
voltage are equal. Switch off and
allow to cool for at least three
minutes
Clean using the supplied nozzle
cleaning needle
Clean
Fill additive container
Put lance on low pressure or
screw the knurled ring out to
increase flow.
FAULT CAUSE REMEDY
TROUBLE SHOOTING
9

10
PARTS LIST
No. Description Qty Part No. No. Description Qty Part No.
1 Screw FP10201600
2 Cover FP73133200
3 Hub Cap FP17806900
4 Clip Wheel FP17802600
5 Wheel FP17804600
6 Axle FP73130900
7 Trolley Frame FP73130500
8 Screw FP10601300
15 Cable Holder FP73131300A
17 Detergent Tank FP73130300
18 Detergent Cap FP18100900
19 Screw FP10601200
20 Hose Reel Support FP73131400
21 Lance Support FP73131000
22 Screw FP10108800
23 Washer FP12900400
24 Rubber Support FP16903500
25 Spacer FP73132700
26 Frame Plate FP73131100
27 Nut FP12101200
28 Protection Plate FP73131600A
29 Rubber Feet FP1 5903400 ** Quote model number when ordering.
30 Strain Relief FP19106100
31 Nylon Lock Nut FP19106200
32 Support Plate FP73132800A
33 Switch Assy FPEHD033
34 Cover FPEHD034
35 Contactor FPEHD035
36 Box FPEHD036
37 Seal FPEHD037
38 Motor FPEHD038**
39 Pump FPEHD039**
40 Manifold FPEHD040**
41 Valve Assy FPEHD041**
42 Microswitch FPEHD042
43 Connector FPEHD043
48 Hose FP68600500
49 Nipple FP18000400
50 Gun FP65001000
51 Lance FP62200300
52 Nozzle FP66202800
53 Nozzle FP6700000
52 Nozzle EHD 170 Only FP66203600
For Spare Parts and Service, please contact your nearest dealer,
or CLARKE International, on one of the following numbers.
PARTS & SERVICE TEL: [phone]
PARTS & SERVICE FAX: [phone]
or e-mail as follows:
PARTS: [email protected]
SERVICE: [email protected]
PARTS & SERVICE CONTACTS
For all pump and motor spare parts, consult your Clarke dealer.