Kärcher G 3500 Plus User manual

G 3500 Plus
G3500 Plus
Petrol Pressure Washer
9.507-267.0

1. Spray Gun
2. Nozzles
3. Muffler
4. Air Filter
5. Throttle Lever
6. Choke Lever
7. Fuel Valve
8. Detergent Tank Cap
9. Detergent Tank
10. Petrol Tank Cap
11. Petrol Tank
12. Hand Cord
13. Engine Switch
14. Oil Dipstick
15. Pressure Hose
16. Detergent Suction Connection
17. Pump Outlet
18. Pump Inlet
19.Thermal Release Valve
20. Spark Plugs
21. Bypass Valve
22.Tap Adapter
23. Water Filter
Page 2
Machine Part List

Page 3

Engine Oil Type
SAE 10W-30
Model Number
9.507-267.0
Serial Number
Please read and
comply with these
original instruc-
tions prior to the
initial operation of your machine and
store them for later use or subsequent
owners.
Safety Instructions . . . . . . . . . . . . . . . 5
Assembly Instructions . . . . . . . . . . . . 7
Preparation . . . . . . . . . . . . . . . . . . . . 9
Operating Instructions . . . . . . . . . . . . 11
Using the Accessories . . . . . . . . . . . . 13
Working with Detergents . . . . . . . . . . 15
Taking a Break
...five minutes or more . . . . . . . . . . . 16
Shutting Down &
Cleaning Up . . . . . . . . . . . . . . . . . . . . 16
Winterizing & Long Term Storage . . . 16
Maintenance Instructions . . . . . . . . . 17
Cleaning Tips . . . . . .. . . . . . . . . . . . . 17
Troubleshooting . . . . . . . . . . . . . . . . . 19
G 3500 Plus
Max Pressure
3500 PSI
Rated Pressure
3000PSI
Water Volume
(minimum)
9.0 L/min
Engine
OHV
Fuel Type
Unleaded Petrol
Fuel Tank Size
3.0L
Indicates “an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.”
Indicates “a potentially hazardous
situation which, if not avoided, could
result in death or injury.”
Indicates “a potentially hazardous
situation which, if not avoided, may
result in minor or moderate injury or in
property damage incidents.
Page 4
PETROL PRESSURE WASHER OPERATOR MANUAL
Contents
Specifications
Hazard Levels

When using this product, basic
precautions should always be
followed, including the following:
● Read the operating instructions of the
engine manufacturer before start-up
and follow the safety instructions
carefully.
● Read all instructions before using
product.
● To reduce the risk of injury, close
supervision is necessary when the
product is used near children.
● Know how to stop the product and
bleed pressures quickly. Be
thoroughly familiar with the controls.
● Stay alert - watch what you are doing.
● Do not operate when fatigued or
under the influence of alcohol or
drugs.
● Keep operating area clear of all
persons.
● Do not overreach or stand on
unstable support. Keep good footing
and balance at all times.
● Wear safety goggles and ear
protection.
● Follow the maintenance instructions
specified in the manual.
● To avoid risks, all repairs and
replacement of spare parts should
only be carried out by Authorized
Karcher Service Agents.
● Tyre pressure should not exceed max.
25 psi.
Risk of injection or injury – Do not
direct discharge stream at persons.
● High pressure jets can be dangerous
if misused. The jet must not be
directed at persons, animals,
electrical devices, or the unit itself.
Do not spray electrical connec-
tions, electrical outlets or fixtures.
● Do not use acids, solvents, or any
alkaline or flammable material in this
product. These products can cause
physical injuries to the operator and
irreversible damage to the machine.
Gun kicks back – Hold with both
hands.
● The trigger gun safety lock prevents
the trigger from accidentally being
engaged. This safety feature must be
engaged when replacing nozzles or
not in use.
● The muffler in this machine is
extremely hot and dangerous. Extra
care must be taken not to cause
personal injury.
Page 5
Safety Instructions

Risk of asphyxiation – Use this
product only in a well ventilated
area. Running this product indoors
can result in death due to Carbon
Monoxide, a poisonous gas you
cannot see or smell. Only use
outdoors and far away from
windows, doors and openings or
vents.
● Operate and fuel machine in a well
ventilated area, free of devices
featuring an open pilot or flame such
as boilers, water heaters, etc.
Risk of fire/explosion – Do not add
fuel when the machine is operating
or still hot.
Risk of fire/explosion -Operate only
where open flame or torch is
permitted. Do not spray flammable
liquids.
● Do not operate if fuel has been
spilled. Instead, move machine to
different location and avoid creating
sparks.
● This machine has hot surfaces which
can cause burns. Operate in a safe
environment and away from children.
● Do not touch hot surfaces or allow
accessories to contact hot surfaces.
● Do not leave machine running unat-
tended.
● Avoid tipping machine on its side.
When connecting to water supply
mains, local regulations of your
municipal water company must be
observed. In some areas
connecting directly to public
drinking water supply may require
a back flow prevention device. This
is to ensure that there is no
feedback of chemicals into the
water supply. Use a water filter to
avoid potential damage from dirt in
the water supply.
● Garden hose must be at least 16mm
diameter with a minimum 7.5m hose
length.
● Flow rate of water supply must not
fall below 9.0 L/min.
● Flow rate can be determined by
running the water for one minute into
an empty 10-litre container.
● The water supply temperature must
not exceed 50°C.
● Never use the pressure washer to
draw in water contaminated with
solvents, e.g. paint thinners,
gasoline, oil, etc.
● Always prevent debris from being
drawn into the unit by using a clean
water source. Use additional water
filter.
● Do not operate pressure washer with-
out the water turned on.
Page 6
Water Supply
(Cold Water Only)

A - Main Frame
B - Gun Hook & Bolts
C -Spray Gun & Wand
D - Pressure Hose
E- Wheels
F-Tap Adapter and Water Filter
G-15” Surface Cleaner
Page 7
Assembly Instructions
Part List

H-Foam Cannon
I-Turbo Nozzle
Parts not shown:
1 - Manual
1 - Nozzle Cleaner
1 - Spark Plug Wrench
1 - One bottle of oil
1- One Oil funnel
1 - O-Ring Set
(2 for pressure hose, 1 for spray gun)
1. Install the wheels to the main frame
by pressing the spring loaded pin on
wheel axle, then insert wheel axle
into frame. Ensure that the spring pin
is fixed in position. Repeat for the
other wheel.
2. Pull out the latch, unfold the upper
frame to vertical angle. Then
insert the latch to lock the upper
frame.
Page 8
Assembling

3. Attach the handle and main frame
with bolts.
Engine shipped without oil in
crankcase. Before starting engine,
fill with oil. Do not over-fill. Do not
run the engine with a high or low oil
level as this can cause engine
damage. If you have further
questions regarding the engine,
please refer to the engine manual
included with the unit.
Check the engine oil level with the
engine stopped and in a level position.
1. Remove the filler cap/dipstick
and wipe it clean.
2. Insert and remove the dipstick
without screwing it into the filler
neck. Check the oil level shown
on the dipstick.
3. If the oil level is low, fill to the
edge of the oil filler hole with
the recommended oil.
Always use SAE 10W-30 oil.
Oil crankcase capacity: 0.6L.
4. Reposition the oil gauge dipstick and
tighten it by turning clockwise.
5. Engine oil should be changed after
the first 5 hours, then every 50 hours.
Failure to change engine oil will void
engine warranty.
Page 9
Preparation
Oil Level

Make sure there is enough fuel in
the fuel tank before operating. This
is a 4-cycle engine and does not
require a Petrol/oil mixture. There is
a separate reservoir for petrol and
a separate reservoir for oil.
1. If it is necessary to add fuel, first
make sure the engine is OFF, and
then remove the fuel cap by turning it
counter clockwise.
2. When refueling, make sure the fuel
filter is in place and keep in mind all
safety precautions.
3. Use clean unleaded petrol with a
minimum of 87 octane. DO NOT use
old petrol. DO NOT mix oil with petrol.
Fuel tank capacity: 3.0 Litre
The air filter should be checked
after prolonged storage, the
following steps should be done
when checking the air filter. It is
recommended to replace the air
filter once every spring.
1. Remove the wing nut from the air
cleaner cover, and remove the air
cleaner cover.
2. Remove the wing nut from the air
filter, and remove the filter.
3. Remove the foam filter from the
paper filter.
Page 10
Fuel Level
Air Filter

4. Inspect both air filter elements, and
replace them if they are damaged.
Always replace the paper air filter
element at the scheduled interval.
5. Clean the air filter elements if they
are to be reused.
Paper air filter element: Tap the filter
element several times on a hard
surface to remove dirt, or blow
compressed air [not exceeding 30 psi
(207 kPa)] through the filter element
from the inside. Never try to brush off
dirt; brushing will force dirt into the
fibers.
Foam air filter element: Clean in warm
soapy water, rinse, and allow drying
thoroughly. Or clean in nonflammable
solvent and allow drying. Dip the filter
element in clean engine oil, and then
squeeze out all excess oil. The engine
will smoke when started if too much oil
is left in the foam.
6. Wipe dirt from the inside of the air
cleaner base and cover, using a
moist rag. Be careful to prevent dirt
from entering the air duct that leads
to the carburetor.
7. Place the foam air filter element over
the paper element, and reinstall the
assembled air filter. Be sure the
gasket is in place beneath the air
filter. Tighten the air filter wing nut
securely.
8. Install the air cleaner cover, and
tighten the cover wing nut securely.
Starting Procedure:
1. Connect garden hose.
The water filter is already
preinstalled inside the pump inlet
connector.
Connect tap connector onto the
pump inlet, and connect the garden
hose to the tap connector.
Note: Please check filter regularly to
ensure there are no blockages
present. Clean if required and
reinstall.
2. Connect spray gun and pressure
hose.
Page 11
Operating Instructions

3. Open water source.
4. Squeeze trigger to purge.
Note: Releasing the pressure inside the
gun and hose will help start the
engine.
5. Start the Engine.
Always relieve spray gun pressure
before pulling starter cord. Pull starter
cord slowly until resistance is felt, then
pull rapidly.
► STEP 1: Turn the engine switch to
"ON" position.
► STEP 2: Move choke lever to
"COLD START"position.
► STEP 3: Turn the fuel valve to "ON"
position.
► STEP 4: Put the throttle lever to the
"FAST" position.
► STEP 5: Pull trigger on spray gun to
release pressure.
► STEP 6: Locate recoil cord and pull
slowly until resistance is felt. At this
point, pull rapidly to start engine.
► STEP 7: After the engine has started,
turn the choke lever to "RUN" position.
NOTE: If unable to start the engine,
repeat the above operation one or two
times.
NOTE: If the temperature is higher,
such as during summer or if the engine
is hot, choke valve should be switched
to "RUN" position before starting.
Cleaning Procedure:
Position the tip of the wand 15-20 cm
(6”-8”) away from the surface to clean
at a 45°angle.
Starter cord rapid retraction can result
in Serious injury. Rapid retraction will
pull hand and arm towards engine
faster than you can let go.
Page 12

The color-coded quick connect nozzles
provide a wide array of spray widths from
0° to 40° and are easily accessible when
placed in the convenient nozzle holder.
0° spray angle = Red nozzle
For particularly stubborn accumulation of
grime. Not recommended for soft
materials like sidings, decks, painted
surfaces, cars.
15° spray angle = Yellow nozzle
For dirt accumulation over a surface.
25° spray angle = Green nozzle
For dirt accumulation over a large
surface.
40° spray angle = White nozzle
For moderate dirt accumulation over a
large surface.
Soap = Black nozzle
For operating with detergents or
cleaning with low pressure.
Connect the adaptor to the 1/4”
quick connector of high pressure
gun.
The 15" surface cleaner works in
tandem with your petrol pressure
washer to quickly deliver professional
level cleaning without splash back. It
cleans an area 15" wide with two
spinning nozzles instead of one,
reducing your cleaning time, and
eliminates streaks by keeping the
nozzles at a fixed height from the
surface. Also cleans vertical surfaces
including garage doors and home
siding. Quick Connect for compatibility
with a wide range of petrol pressure
washers.
Connect the Foam Cannon to the 1/4”
quick connector of high pressure gun.
SOAP
Using the Accessories
Quick Connect Nozzles
15” Surface Cleaner
Foam Cannon
Page 13

Add detergent concentrate to the canister
and top with water, spray luxurious soap.
This accessory turns your pressure
washer into a personal car wash!
Adjust the rotary switch to adjust the foam
spray pressure, and get your best clean
efficiency.
Connect the Turo Nozzle to the 1/4”
quick connector of high pressure gun
to use Turo Nozzle.
Certain hard surfaces (Ig.
driveways, asphalt, concrete, brick
and stone) may require more
intense cleaning to get the job done.
While you could use a 0° (pencil jet)
spray nozzle, that method can be
very time consuming.Turbo Nozzle
takes a 0° nozzle and rotates it at
high speed, giving you the effective
cleaning power of a pencil jet but
with a wider area of cleaning. This
greatly speeds up the task of deep
cleaning hard surfaces.
High pressure in nozzle area. Risk of
injury caused by improperly locked
nozzle.
●Make sure you hear the "click" when
inserting the nozzle tip into the quick
connection.
● Pull the nozzle to make sure it is
seated properly before operating your
unit.
To avoid serious injury never point
spray nozzle at yourself, other
persons or animals.
The pressure can be adjusted by
changing the speed of the engine
using the throttle lever.
Turning the throttle lever to the left can
increase the speed to get more
pressure.
Turning the throttle lever to the right
can decrease the speed to get less
pressure.
When adjusting the engine throttle
to the lowest setting, do not
operate the pump. This can cause
the engine to stall due to lack of
power.
Adjusting Water Pressure
Page 14
Turbo Nozzle

Detergents can only be applied
with the black detergent nozzle.
● Install the black detergent nozzle for
detergent application at low pressure.
● Fill the detergent tank with Kärcher
Brand Detergent.
● With the engine running, pull trigger
to operate unit.
● Liquid detergent is drawn into the
unit and mixed with water.
● Apply detergent to work area.
● Do not allow detergent to dry on
surface.
● Always flush the detergent bottle with
fresh water when the cleaning job is
done, to rinse/flush any remaining
detergents from the injection system.
NOTE: For best results see
Cleaning Tips for specific
information on how to clean
different surfaces.
This unit has been designed for use
with cleaning detergents
recommended by the manufacturer.
The use of other cleaning detergent
may affect the operation of the
machine and void the warranty.
Always Use Kärcher Detergent for
Best Results.
Kärcher biodegradable detergents
are specially formulated to protect
the environment and your pressure
washer. The special formula won't
clog the filter and will protect the
internal parts of the pressure washer
for a longer life. For Kärcher
Detergents, check your retailer or
visit our website:
www.karcher.com.au
or www.karcher.co.nz
Never use:
● Bleach, chlorine products or
other corrosive chemicals.
● Liquids containing solvents (i.e.,
paint thinners, gasoline, oils.)
● Tri-sodium phosphate products.
● Ammonia products.
● Acid-based products.
● The use of Non Karcher branded
chemicals or detergents will cause
damage to the pump and void the
warranty.
These chemicals will harm the
unit and will damage the surface
being cleaned.
Use of these items will void
the warranty
Working with Detergents
Page 15

● Move the engine stop switch to the
OFF position.
● For engine details see engine
manual.
● Release trigger and engage safety
lock.
● If detergents have been used, insert
1 litre of fresh water into Detergent
Bottle. Siphon water at low pressure
for one minute to clear the line of
residual detergent.
● Move the engine stop switch to the
OFF position. Close the fuel valve.
● Turn off the water source.
● Press trigger to release water
pressure.
● Release trigger and engage gun
safety lock.
● Disconnect the garden hose from the
water inlet on the unit.
● Disconnect the high pressure hose
from the high pressure outlet. Store
the high pressure hose in the gun
holder assembly.
● Turn engine switch to the OFF
position.
● Disconnect all hoses.
● Unscrew cap from Pump Guard
bottle.
● Remove internal seal.
● Reattach cap to Pump Guard bottle
and remove black protective cap.
● Screw bottle into water inlet on
pressure washer pump and squeeze.
● With ignition OFF, pull starter rope
until fluid starts to exit.
● Unscrew bottle. Store or dispose
properly.
● If Kärcher Pump Guard is
unavailable, perform the following:
● Disconnect all water connections.
● Turn on the machine for a few
seconds, until the water which
remained in the pump exits. Turn off
engine immediately.
Failure to follow the above directions
may result in damage to the pump
assembly and accessories and void
the warranty.
Do not allow high pressure hose to
become kinked.
Store machine and accessories in a
room which does not reach freezing
temperatures. DO NOT store near
furnace or other sources of heat as it
may dry out the pump seals.
Before winter storage and during the
cleaning season , follow the following step
to protect the pump from freezing and
premature wear.
Page 16
Taking a Break
...five minutes or more
Shutting Down &
Cleaning Up
Winterizing & Long Term
Stora
ge

Pump Inspection
You should routinely make a visual
inspection of the pressure washer’s
pump. If you notice oil leaking around
the pump seals, you should take the
pressure washer to a Kärcher
Authorized Service Center for repair.
(You can locate a service center in
your area online at:
www.karcher.com.au .or
www.karcher.co.nz.
Carry out maintenance tasks for the
engine according to the specifications
provided in the operating instructions
provided by engine manufacturer.
With or Without Detergent
Pre-rinse deck and surrounding area
with fresh water. If using Kärcher
universalcleaner, apply to surface at low
pressure. For best results, limit your
work area to smaller sections of
approximately 8 square meters. Allow
Deck Wash to remain on surface 1-3
minutes. Do not allow detergent to dry
on surface.
Rinse at high pressure in a long
sweeping motion keeping the spray
nozzle approximately 8-15cm (3-6
inches) from the cleaning surface.
Always clean from top to bottom and
from left to right. When moving on to a
new section of the cleaning surface,
be sure to overlap the previous section
to eliminate stop marks and ensure a
more even cleaning result.
With or Without Detergent
Pre-rinse vehicle with fresh water. If
using Kärcher car shampoo Vehicle
Wash, apply to surface at low
pressure. For best results, clean one
side of vehicle at a time and always
apply detergent from bottom to top, do
not allow detergent to dry on surface.
If needed, use special wash brush
attachment (not included) to remove
stubborn dirt. Rinse at high pressure
in a sweeping motion keeping the
spray nozzle approximately 8-15cm
(6-8 inches) from the cleaning surface
(distance should increase when
rinsing pin-striping or other sensitive
surfaces). Always clean from top to
bottom and from left to right. For best
results, wipe surface dry with a
chamois or soft dry cloth.
With or Without Detergent
Pre-rinse cleaning surface with fresh
water. If using Kärcher universal
Page 17
Engine
Deck Cleaning
Pump
Cars, Boats
& Motorcycles
Maintenance Instructions
Cleaning Tips
House Siding

cleaner, apply to surface at low pres-
sure (for best results, limit your work
area to sections of approximately
1.8M and always apply detergent from
bottom to top). Allow detergent to remain
on surface 1-3 minutes. Do not allow
detergent to dry on surface, if surface
appears to be drying, simply wet down
surface with fresh water. If needed, use
special wash brush attachment (not
included) to remove stubborn dirt. Rinse
at high pressure from top to bottom in an
even sweeping motion keeping the spray
nozzle approximately 15cm (6”) from the
cleaning surface.
With or Without Detergent
Pre-rinse cleaning surface with fresh
water. If using Karcher Stone Cleaner or
Degreaser, apply to surface at low
pressure. For best results, limit your
work area to smaller sections of
approximately 8 square meters. Allow
Stone Cleaner or Degreaser to remain
on surface 1-3 minutes. Do not allow
detergent to dry on surface. Rinse at
high pressure in a sweeping motion
keeping the spray nozzle approximately
8-15cm (6-8 inches) from the cleaning
surface. Always clean from top to bottom
and from left to right. For removing
extremely stubborn stains, use a
DirtBlaster® Spray Nozzle
(sold separately).
With or Without Detergent
Pre-rinse cleaning surface with fresh
water. If using Karcher Universal
Cleaner or Degreaser, apply
detergent at low pressure. Allow
Detergent to remain on surface 1-3
minutes. Do not allow detergent to dry
on surface. Rinse at high pressure
keeping the spray nozzle
approximately 8-15cm
(3-6 inches) from the cleaning surface.
For removing extremely stubborn dirt,
it may be necessary to move the spray
nozzle even closer to the surface for
greater dirt cutting action.
With or Without Detergent
Pre-rinse furniture and surrounding
area with fresh water. If using
Universal Cleaner, apply to surface at
low pressure. Allow detergent to
remain on surface 1-3 minutes. Do not
allow detergent to dry on surface. If
needed use special Wash Brush
Attachment (not included) to remove
stubborn dirt. Rinse at high pressure
in a sweeping motion keeping the
spray nozzle approximately 8-15cm
(3-6 inches) from the cleaning surface.
For best results, clean from top to
bottom and from left to right.
Patio & Lawn Furniture
Barbecue Grills, Outdoor
Power Equipment
& Gardening Tools
Page 18
Cement Patios, Brick &
Stone

● Before cleaning any surface, an
inconspicuous area should be cleaned to
test spray pattern and distance for
maximum cleaning results.
● If painted surfaces are peeling or chipping,
use extreme caution as pressure washer
may remove the loose paint from the
surface.
● When using on surfaces which might come in
contact with food, flush surfaces with plenty of
drinking water.
● For additional cleaning tips, visit our website
at www.karcher.com.au
Optional accessories are available to further
enhance your cleaning capabilities. These
accessories are accurate as of the printing date
of this manual. Please check our website:
www.karcher.com.au for pricing and up to date
information.
● Extension Hose
● DirtBlaster® Spray Nozzle
● Patio Cleaner
● Foam Nozzle
● Nozzle Kit
● Pipe Cleaning Kit
● 3.6m extension lance
Page 19
Optional Accessories
Recommendations

Remove the spark plug cable to
prevent accidental ignition of the
engine before making any repair.
Symptom
Cause
Solution
Engine Will Not
Start
No petrol.
Fill petrol Tank.
Choke is not in the
correct position.
Slide lever out to closed position.
Ignition switch is
not in the correct
position.
Turn Ignition switch on.
Water pressure built
up in the machine.
Squeeze the trigger to release the
pressure.
For additional engine problems refer to the engine
manual.
Unit Does Not
Reach High
Pressure
Diameter of garden
hose is too small.
Replace with a 16mm (5/8”) or larger
garden hose.
Water supply is
restricted.
Check garden hose for kinks, leaks and
blockage.
Not enough inlet
water supply.
Turn water on full force. Check garden
hose for kinks, leaks or blockage.
Water inlet filter is
clogged.
Remove filter and rinse out in warm
water.
Black detergent
nozzle is attached.
Remove black detergent nozzle and
attach high pressure nozzle.
Output Pres-
sure Varies
High And Low
Not enough inlet
water supply.
Turn water on full force. Check garden
hose for kinks, leaks or blockage.
Page 20
Troubleshooting