Kärcher G 2800 User manual

G 2800
1.107-316.0
9.807-913.0-A 02/17
G 2800

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. Fuel Tank Cap
11. Fuel 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 Relieve Valve
20. Spark Plugs
21. Tap Adapter
Machine Parts List

10
11
12 13 14
8
9
7
6
5
4
3
2
1
20
21 19
18
17
16
15

4 English
Please read and
comply with these
original instruc-
tions prior to the
initial operation of your appliance 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 . . . . . . . . . . 14
Taking a Break
...five minutes or more . . . . . . . . . . . . 15
Shutting Down &
Cleaning Up . . . . . . . . . . . . . . . . . . . . 15
Winterizing & Long Term Storage . . . 15
Maintenance Instructions. . . . . . . . . . 16
Cleaning Tips. . . . . . . . . . . . . . . . . . . 16
Troubleshooting . . . . . . . . . . . . . . . . . 19
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.”
G 2800
Contents
Specifications
G 2800
Operating Pressure 2800 PSI
Water Volume 9.5 L/min
Engine OVH
Fuel Type Unleaded Gas
Fuel Tank Size 3.0L
(.79 Gallons)
Engine Oil Type SAE 10W-30
Model Number 1.107-316.0
Serial Number
Hazard Levels

English 5
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 trained
personnel.
●Tire 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.
Safety Instructions

6 English
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 per-
mitted. Do not spray flammable liq-
uids.
●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
(5/8 inch) diameter.
●Flow rate of water supply must not
fall below 9.5 L/min (2.5 GPM).
●Flow rate can be determined by
running the water for one minute into
an empty 5-gallon container.
●The water supply temperature must
not exceed 50°C/122°F.
●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 Supply
(Cold Water Only)

English 7
water source. Use additional water
filter.
●Do not operate pressure washer with-
out the water turned on.
A - Main Frame
B - Handle
C - Gun Hook & Hose Hook
D - Knobs & Bolts
E - Pressure Hose
Assembly Instructions
Part List

8 English
F - Spray Gun & Wand
G- Wheels
Parts not shown:
1 - Manual
1 - Nozzle Cleaner
1 - Spark Plug Wrench
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. Attach the handle and main frame
with knobs and bolts.
Assembling

English 9
3. Attach the gun & hose hooks to the
handle.
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.
Preparation
Oil Level

10 English
Make sure there is enough fuel in
the fuel tank before operating. This
is a 4-cycle engine and does not
require a gas/oil mixture. There is a
separate reservoir for gas 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 gasoline with a
minimum of 87 octane. DO NOT use
old gas. DO NOT mix oil with gaso-
line.
Fuel tank capacity: 3.0 Lt
(.79 Gallons)
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.
Fuel Level Air Filter

English 11
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.
2. Connect spray gun and pressure
hose.
Operating Instructions
Pump
Filter
Tap
Connector
Garden Hose

12 English
3. Open water source.
4. Start the Engine.
Starter cord rapid retraction can
result in Serious injury. Rapid
retraction will pull hand and arm
towards engine faster than you can
let go. 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
"CLOSE" 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 "OPEN"
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 "OPEN" 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.

English 13
The color-coded quick connect
nozzles provide a wide array of spray
widths from 0° to 65° 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.
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.
Using the Accessories
SOAP
Adjusting Water Pressure

14 English
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.
These chemicals will harm the unit
and will damage the surface being
cleaned.
Use of these items will void the
warranty.
Working with Detergents

English 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 gallon 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.
It is highly recommended to use
Kärcher Pump Guard (part number
9.558-998.0) before winter storage
and during the cleaning season to
protect the pump from freezing and
premature wear.
●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.
Taking a Break
...five minutes or more
Shutting Down &
Cleaning Up
Winterizing & Long Term
Storage

16 English
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 Deck
Wash, apply to surface at low
pressure. For best results, limit your
work area to smaller sections of
approximately 8 square meters
(25 square feet). 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 Touchless 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 Pressure
Maintenance Instructions
Pump
Engine
Cleaning Tips
Deck Cleaning
Cars, Boats
& Motorcycles
House Siding

English 17
Wash, apply to surface at low pres-
sure (for best results, limit your work
area to sections of approximately
1.8M (6 feet) 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 Kärcher Pressure Wash
or Degreaser, apply to surface at low
pressure. For best results, limit your
work area to smaller sections of
approximately 8 square meters
(25 square feet). Allow Pressure
Wash 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 approxi-
mately 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 Kärcher Pressure Wash
or Degreaser, apply detergent at low
pressure. Allow Pressure Wash 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
Pressure Wash, apply to surface at
low pressure. Allow Pressure Wash 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.
Cement Patios, Brick &
Stone
Barbecue Grills, Outdoor
Power Equipment
& Gardening Tools
Patio & Lawn Furniture

18 English
●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 or
www.karcher.co.nz
Optional accessories are available to
further enhance your cleaning capabil-
ities. These accessories are accurate
as of the printing date of this manual.
Please check our website:
www.karcher.com.au or
www.karcher.co.nz for pricing and up
to date information.
●Extension Hose
●DirtBlaster® Spray Nozzle
●Universal Wash Brush Kit
Recommendations
Optional Accessories

English 19
Remove the spark plug cable to
prevent accidental ignition of the
engine before making any repair.
Troubleshooting
Symptom Cause Solution
Engine Will Not
Start
No Gasoline. Fill Gas 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.

20 English
Output
Pressure
Varies Between
High And Low
Pump is sucking air. Check that hoses and fittings are air
tight. Turn off machine and purge pump
by squeezing trigger gun until a steady
flow of water emerges through the
nozzle.
Water inlet filter is
clogged.
Remove filter and rinse out in warm
water.
Spray nozzle is
obstructed.
Blow out or remove debris with a fine
needle.
Calcified gun, hose
or spray wand.
Run distilled vinegar through detergent
tank.
No Detergent Detergent suction
tube not properly
connected to the
machine.
Check connection.
Detergent is too
thick.
Dilute detergent, for best results use
Kärcher detergent.
Filter on detergent
suction tube is
clogged.
Run warm water through filter to remove
debris.
Damaged or
clogged detergent
suction tube.
Remove obstruction or replace detergent
suction tube.
A high pressure
nozzle is attached.
Replace with black detergent nozzle.
Spray nozzle is
obstructed.
Blow out or remove debris with fine
needle.
Garden Hose
Connection
Leaks
Loose fittings. Tighten fittings.
Missing/worn
rubber washer.
Insert new washer.
Symptom Cause Solution