Trueshopping 90P1850 User manual

Offering a wide selection of products at competitive prices
Electric Pressure
Washers
90P1850
Instruction Manual

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1
Introduction
Do not use the machine without reading the Instruction
Manual. Please save these instructions.
The portable pressure washing machine is a highly
specialised multifunctional machine with exceptionally
reliable safety assurance, which must be inspected
before use.
Automatic ON/OFF
The motor on this pressure washer does not run
continuously. It only runs when the trigger of the spray
gun is squeezed. After following the start up procedures in
this manual turn the pressure washer on and squeeze the
trigger for activation. See “Operating Instruction” section
in this manual for further details.
The electrical supply connection should be made by a
qualified person and comply with IEC 60364-1.
The electric supply to this machine should include either a
residual current device that will interrupt the supply if the
leakage current to earth exceeds 30 mAfor 30 ms or a
device that will prove the earth circuit.

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Safety guidelines
This information is provided for safety and to prevent
equipment problems. To help recognise this information,
observe the following:
WARNING! This indicates a hazardous situation.
CAUTION: Caution indicates a potentially hazardous
situation which could result in minor or moderate injury.
WARNING!
The machine is intended to be used at a
temperature above 0 degree.
The operating method to be followed in the event
of accident (e.g. contact with detergents: rinse with
an abundance of clean water) or breakdown to
prevent unsafe situations.
The motor of this pressure washer will not run
unless the trigger is squeezed.

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Please apply the following precautions when the machine
is used:
Read all instructions before using the machine.
Keep children away from the machine.
Always disconnect power before disassembling or
repairing the unit of the machine.
Follow all safety codes as well as the Occupational
Safety and Health Act (OSHA).
Ensure safety devices are operating properly
before using the machine. Do not remove or modify
any part of the machine.
Know how to stop this machine and bleed pressure
quickly.
Do not operate the machine when fatigued or
under the influence of alcohol or drugs.
Keep operation area clear of all persons, children
& animals.
Do not overreach or stand on unstable support
when using this machine.
Follow the maintenance instructions specified in
the manual.
Use cleaning agent supplied or recommend by the
manufacturer.
Keep the machine stable during use, transportation,
assembly and dismantling.
In any event of accident, always switch off the

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machine and pull out the plug from socket outlet
and disconnect the connection with water.
The machine is not intended to be connected to the
potable water mains. If necessary, please use only
inlet hose-set approved by IEC 61770. The
necessary length of the water supply hose is 30cm,
and the pressure of the water supply hose is 0.8
Mpa.
This machine is to be used only by trained
operators.
Always remove lance from gun before cleaning
debris from tip.
Keep clear of nozzle. Never direct high pressure
spray at any person, animal or self.
Always wear safety glasses/goggles and protective
clothing when operating or performing
maintenance.
Never put hand or fingers over the spray tip while
operating the unit.
Never try to stop or deflect leaks with any body
part.
Always engage the trigger safety latch in the safe
position even when spraying is stopped.
Always follow detergent manufacturer’s label.
Always protect eyes, skin, and respiratory system
from detergent.

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Servicing of double-insulated machine
In a double-insulated machine, two systems of insulation
are provided instead of grounding. No grounding means
are provided for a double-insulated machine, nor should
grounding means be added to the machine. Servicing a
double-insulated machine requires extreme care and
knowledge of the system, and should be done only by
qualified service personnel.
Replacement parts for a double-insulated machine must
be identical to the original parts. A double-insulated
machine is marked with the words “Double Insulation "or
“Double Insulated.” Machine may also be marked with
symbol shown in Figure 1.
WARNING! Do not use pressure that exceeds the
operating pressure of any of the parts (hoses, fittings, etc.)
in the pressurised system.
Ensure all equipment and accessories are rated to
withstand the maximum working pressure of the
unit.

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WARNING! Explosion hazard
Never spray flammable liquids or use pressure
washer in areas containing combustible dust,
liquids or vapors. Never operate the machine in a
closed building or in/near an explosive
environment.
WARNING! Do not spray electrical apparatus and wiring.
Never disconnect the high pressure discharge
hose from the machine while the system is
pressurised. To depressurize machine, turn power
and water supply off, then press gun trigger 2-3
times.
Never permanently engage the trigger mechanism
on the gun.
Never operate the machine without all components
properly connected to the machine (handle,
gun/wand assemble nozzle, etc).
WARNING! Equipment damage
Always turn water supply “ON” before turning
pressure washer “ON.” Running pump dry causes
serious damage.
Do not operate the pressure washer with the inlet
water screen removed. Keep screen clear of debris
and sediment.
Never operate pressure washer with broken or

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missing parts. Check equipment regularly and
repair or replace worn or damaged parts
immediately.
Use only the nozzle supplied with this machine.
Never leave the wand unattended while the
machine is running.
Never attempt to alter factory settings. Altering
factory settings could damage the unit and will void
the warranty.
Always hold gun and wand firmly when starting and
operating the machine.
Never allow the unit to run with the trigger released
(off) for more than one minute. Resulting heat
buildup will damage pump.
Pressure washer is not supposed to pump hot
water. Never connect it to a hot water supply as it
will significantly reduce the life of the pump.
Never store the pressure washer outdoors or
where it could freeze. The pump will be seriously
damaged.
Release trigger when changing from high to low
pressure modes. Failure to do so could result in
damage.
Be aware of the recoil caused by the water jet
when the machine is switched on.
CAUTION: Keep hose away from sharp objects. Bursting

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hoses may cause injury. Examine hose regularly and
replace it if damaged. Do not attempt to mend a damaged
hose.
Extension cords
The use of an extension cord is not recommended. Use
only extension cords intended for outdoor use. These are
identified by the mark “Acceptable for use with outdoor
machines; store indoors while in use.”
Use only extension cords having an electrical rating equal
to or more than the rating of the machine. Do not use
damaged extension cords. Examine extension cord
before using and replace it if damaged. Do not abuse
extension cord. Do not pull on the cord to disconnect.
Keep cord away from heat and sharp edges.
Always disconnect cord from receptacle before
disconnecting machine from extension cord.
WARNING! To reduce the risk of electrocution, keep all
connections dry and off the ground. Do not touch plug
with wet hands.

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This machine is not intended for use by 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 machine by a
person responsible for their safety.
This machine has been designed for use with the
cleaning agent supplied or recommended by the
manufacturer. The use of other cleaning agents or
chemicals may adversely affect the safety of the
machine.
Recommend the operator to wear ear protectors.
High pressure jets can be dangerous if subject to
misuse. The jet must not be directed at persons,
live electrical equipment or the machine itself.
Do not use the machine within range of persons
unless they wear protective clothing.
Do not direct the jet against yourself or others in
order to clean clothes or foot-wear.
Risk of explosion. Do not spray flammable liquids.
High pressure cleaners shall not be used by
children or untrained personnel.

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High pressure hoses, fittings and couplings are
important for the safety of the machine. Use only
hosed, fittings and couplings recommended by the
manufacturer.
To ensure machine safety, use only original spare
parts from the manufacturer or approved by the
manufacturer.
Water that has flown through backflow preventers
is considered to the non-potable.
The machine shall be disconnected from its power
source by removing the plug from the socket-outlet
during cleaning or maintenance and when
replacing the machine to another function.
Do not use the machine if a supply cord or
important parts of the machine are damaged, e.g.
safety devices, high pressure hoses, trigger gun.
If an extension cord is used, the plug and socket
must be of watertight construction.
Inadequate extension cords can be dangerous.
Warning symbol: Machine not suitable for connection to
the potable water mains.

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WARNING! The machine is intended to be used at a
temperature above 0 degree. (Only for machine with
power cord of H05VV-F).
To ensure the machine safety, please only use
original spare parts (including nozzle) from the
manufacturer or approved by the manufacturer. Do
not use the machine before you change them if
they are damaged.
Be careful of the danger of the kickback force on
the spray assembly when opening the trigger gun
and grasp the gun with hands firmly.
When the machine is moving and during installing,
the machine must be in flat. When moving the
machine, pull the handle to move it.
Connecting to the water supply
WARNING! The machines are not suitable for connection
to portable water mains.
Connect the machine to the water supply. (It can
be a water container).
Make sure the inlet water pressure keeps between
0.01MPa and 0.4MPa.
The inlet pipe should be at least 5M long. Do not
use the pipe if the pipe is damaged.

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If connecting this machine to portable water mains,
you must install a backflow preventer in the water
pipe to prevent dirty water flow back to the drinking
water system. The backflow preventer should
comply with EN 60335-2-79 ANNEX AA.
WARNING! Disconnect from the electrical power supply
before carrying out user maintenance.
If the mains cable is damaged it must be replaced
by the manufacturer, or its service agent or
similarly qualified person to avoid a hazard.
Connection
Attach the high pressure hose to the pressure
water outlet of the machine.
Attach the spray handle to the high pressure hose.
Prior to operating the machine please ensure that
the high pressure hose has been completely
uncoiled. Whilst the machine is in operation the
hose must not loop.
Mount the nozzle or any other equipment you want
to use.
Connect the machine to the water and power
supplies.

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Installation, electrical & water
connections
1. Pressure cleaner
2. Water supply hose
3. Water connection
4. Water inlet
5. High pressure tube
6. High pressure water outlet
7. Spray gun
8. Supply power
Pre-operation
Adjusting fan pattern
The angle of spray coming out of the lance may be
adjusted on some lances by rotating the nozzle. This will
vary the spray pattern from approximately a 0° narrow
high impact stream to a 60° wide fan spray. (See Figure2).

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A narrow stream has high impact force on the cleaning
surface and results in maximum deep cleaning in a
concentrated area. However, this narrow high impact
spray must be used cautiously, as it may damage some
surfaces.
A wide fan pattern will distribute the impact of the water
over a larger area, resulting in excellent cleaning action
with a reduced risk of surface damage. Large surface
areas can be cleaned more quickly using a wide fan
pattern.
Nozzle cleaning instructions

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A clogged or partially clogged nozzle can cause a
significant reduction of water coming out of the nozzle and
cause the unit to pulsate while spraying. To clean out the
nozzle:
• Turn off and unplug unit.
• Turn off water supply. Relieve any pressure trapped in
the hose by squeezing trigger 2-3 times.
• Separate lance from gun.
• Rotate nozzle to the narrow stream setting. This opens
up the fan blades.
• Using included tip cleaner, or an unfolded paper clip,
insert wire into the nozzle hole and move back and forth
until debris is dislodged. (See Figure 5.)
• Remove additional debris by back-flushing water
through the nozzle. To do this, place end of a garden hose
(with water running) to end of nozzle for 30-60 seconds.

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Angle to the cleaning surface
When spraying water against a surface, maximum impact
is generated when the water strikes the surface “head
on.”
However, this type of impact tends to cause dirt particles
to imbed in the surface, thereby preventing the desired
cleaning action. The optimum angle for spraying water
against a cleaning surface if 45 degrees.
Spraying water against a surface at this angle provides for
the most beneficial impact force combined with efficient
removal of debris from the surface.

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Distance from cleaning surface
Another factor that determines the impact force of the
water is the distance from the spray nozzle to the cleaning
surface. The impact force of the water is increased as the
nozzle is moved closer to the surface.
How to avoid damaging surfaces
Damage to cleaning surfaces occurs because the impact
force of the water exceeds the durability of the surface.
The impact force can be varied by controlling the three
previously noted items. Never use a narrow high impact
stream or a turbo/rotary nozzle on a surface that is
susceptible to damage. Avoid spraying windows with a
narrow high impact stream or turbo nozzle as this may
cause breakage.
The surest way to avoid damaging surfaces is to follow
these steps:
1. Before triggering the gun, adjust the nozzle to a wide
fan pattern.
2．Place the nozzle approximately 4-5 feet from and 45
degrees to the cleaning surface, and trigger the gun.
3. Vary the fan pattern spray angle and the distance to the
cleaning surface until optimum cleaning efficiency is
achieved without damaging the surface.

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Turbo nozzle(Not included with all models)
A turbo nozzle, sometimes referred to as a rotary nozzle,
is a very effective tool that can significantly reduce
cleaning time. The turbo nozzle combines the power of a
narrow high impact stream and the efficiency of a 25
degree fan pattern. This swirls the narrow high impact
stream into a cone shape that cleans a larger area.
CAUTION: Since a turbo nozzle uses a narrow high
impact stream, only use it in applications where the
cleaning surface cannot be damaged by narrow high
impact spray. Additionally, the turbo nozzle is not
adjustable and cannot be used to apply detergent.
Adjustable spray nozzle
Turn off the spray lance first, hold the rear part of spray
nozzle, then turn the front part of spray nozzle clockwise.
Water may be sprayed out from the spray nozzle in fan
shapes (fig 1); turn the front part of spray nozzle
withershins, water may be sprayed out from the spray
nozzle linearly (fig 2).

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Low/high pressure adjustable lance
Using high pressure: Please make sure the trigger is
released and there is not any water spraying. Then turn
the rear part of spray nozzle withershins (fig 4). Squeeze
the trigger, the gun will spray water with high pressure.
Using low pressure: Please make sure the trigger is
released and there is not any water spraying. Then turn
the rear part of spray nozzle clockwise (fig 3). Squeeze
the trigger, the gun will spray water with low pressure.
CAUTION: Selection of high or low pressure by turning
action. The selection of the pressure must be carried out
with the gun in closed position.
Fig 1 Fig 2 Fig 3
Fig 4 Fig 5 Fig 6