Operation Manual
EN
TYP: W3100VA
Engine driven
*The picture serves for reference only and it may not represent an exact match of the device delivered
INDEX
Application compliant with the product design p. 1
Environmental protection . . . . . . . . . . . . . . . . p. 1
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 1-2
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . p. 2
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 2
Commissioning . . . . . . . . . . . . . . . . . . . . . . . p. 3
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 4
Engine maintenance . . . . . . . . . . . . . . . . . . . .p. 5
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . p. 8
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .p. 9
Technical data. . . . . . . . . . . . . . . . . . . . . . . . . p. 9
Breakdown of components . . . . . . . . . . . . . . . p.10
Declaration of conformity in compliance with EU standards . . . p.11
CAUTION
Please read this operation manual carefully before the first use of your device and pay attention to the safety
instructions attached. Please obey these instructions at all times. Keep the operation manual for potential
future use or the next owner of the device.
Application compliant with the product design
The use of this high-pressure washer is limited to:
– private households only;
– washing of machinery, vehicles, structures, tools, facades, gardening tools, etc. combined with a highpressure water supply (with added cleaning agents, wherever required);
– operation with accessories using spare parts approved by WPW Center s.r.o.
Environmental protection
The packaging materials are recyclable. Packaging disposal methods must comply with the environmentfriendly principles.
Used machines contain valuable and recyclable materials that can be reused. Any disposal of used machinery
must be conducted in environment-friendly manner.
Any cleaning works producing waste water contaminated with oil, e.g. cleaning of engines or floors of
machinery, may be only performed in cleaning facilities provided with oil separating equipment. Works with
cleaning agents are limited to working areas with proper sealing to prevent leakage of fluids and linkage to the
contaminated water sewers. Make sure to avoid leakage of cleaning agents into water resources or soil.
Safety
Safety Instructions
Make sure you read the "Safety Instructions for High-Pressure Washers” in full prior to the first use of this
device.
Noise reduction tools and protective glasses should be used for the convenience of operators for hearing and
eye protection purposes during operation of the cleaner.
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Hazard levels
DANGER - Indication of an immediate danger potentially resulting in serious injuries or death.
CAUTION - Indication of a potential hazardous situation that may result in light injuries.
WARNING - Indication of a potential hazardous situation that may result in material damage.
Safety features
CAUTION - Safety features are designed to protect their users from injuries and these may not be altered in any
way or even put out of order. Any damaged items must be replaced with original spare parts only.
Protective guards on hot or rotating parts
The protective guards are designed for protection of operators using the high-pressure washer to avoid injuries caused
by temperatures of certain components of the combustion engine or injuries caused by rotating parts of the device.
Safety features on the combustion engine and pump
The engine oil level safety switch (if fitted) serves for automatic deactivation of the engine in case the engine oil level
drops below the minimum threshold. That will prevent damage to the engine due to insufficient lubrication of internal
parts. However, this safety features does not substitute the need to check the engine oil level prior to use of the device.
For further important information see the section – ENGINE (p. 4).
The pump safety valve serves for drainage of some hot water developed during internal circulation of water inside the
pump during operation without discharge of the high-pressure water.
Once the safety valve opens automatically, some of the hot water pours out of the pump to be replaced with cold water
from the connected supply. However, this safety feature does not substitute the need to switch the pump off when not in
use for periods exceeds 2 minutes. For further important information see the section – PUMP (p. 7).
Scope of delivery
For depiction of delivery contents see the packaging or the purchase order. Check the contents completeness
when unpacking. Any items missing or any damages incurred in transport should be notified to the seller.
Additional items required
Fabric-reinforced water hose with the diameter of ½“ (13 mm) with a regular garden quick-coupler.
The supply hose must be at least 5 m and at most 15 m long. The device must be linked to an adequate water
resource with the minimum delivery pressure of 1 bar and the flow rate of 12 l/hr.
Assembly
The device itself is assembled in the manufacturing plant. Fix the upper frame section - grip - onto the bottom
part, by sliding it onto the narrowed part of the tube and use the flexible metal spring to lock it in place. (Figure
on page 3). Before connecting the hoses, remove the covers from the high-pressure water outlet and inlet on
the pump. The first operation requires connection of the high-pressure hose, included in the delivery, with the
control gun and nozzle to the high-pressure section of the pump.
The next step requires filling of the supplied oil into the engine, as directed by instructions in the section
ENGINE (p. 4) and filling the tank with fresh petrol with octane rating of 95.
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Nut
Nozzle
Quick-coupler
The low-pressure inlet on the pump must be fitted with the garden hose adaptor, included in the delivery.
Commissioning
Water supply
CAUTION Avoid operating the pump without a water supply line connected and fed from the source. The
water resource yield must correspond with at least 12 litres per hour, at the minimum pressure of 1 bar. If the
purity of supplied water cannot be guaranteed, the system needs a water filter placed before the pump inlet to
avoid influx of solid contaminants inside the pump.
Having connected the hoses, open the water tap fully to its limit position and depress the control lever on the
high-pressure gun. To deaerate the pump hoses, keep the gun in depressed position until you observe an
even flow of water out of the quick-coupler. Insert the adaptor quick-coupler with the high-pressure nozzle. If
the pump has not developed pressure within 30 seconds following its commissioning, switch
the engine off and proceed in compliance with instructions defined in the Troubleshooting
section! Any dry cycling of the pump for a period exceeding 30 seconds may result in
damage!
Any material damage caused due to inobservance of this instruction renders the warranty void.
CAUTION WHEN USING SELF-PRIMING FUNCTION
Some high-pressure washers with pirming hoses made by WPW Center and fitted with back-pressure valves
(special accessories, item No. SP000-HI001) are suitable for draining of surface water, e.g. from storm water
containers. The water in reservoir must be clean, free of any contaminants or sludge. Contaminated water
causes irreversible damage to internal components of the high-pressure pump. To verify suitability of your
device, please check its technical data.
Fill the filling hose with water up to the rim to eliminate any air bubbles inside.
Connect the hose to the filler neck directly (without the quick-coupler adaptor, included in the delivery). Make
sure the sealing between the hose and the pump neck is free of any damage.
Submerge the other end into the water reservoir. Remove the nozzle from the quick-coupler on the end of
high-pressure gun adaptor. Start the engine and depress the gun control lever to let the water flow out freely,
until the stream comes out free of any air bubbles. Once the system has been bled, fit the nozzle and restart
the engine again. The pump is ready for operation now. If the pump has not developed pressure with the
engine running for 30 seconds, switch the engine off and proceed in accordance with instructions defined in
the Troubleshooting section.
CAUTION If the pump draws air in, the whole deaerating procedure must be
repeated!
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