G 2500 HT
Karcher G 2500 HT User Manual
G 2500 HT
English ....................... 2
Español .................... 14
Français ................... 26
9.139-144 (06/04)
High Pressure Washer Operator Manual
Overview ........................................................................ 3
Precautions ................................................................... 4
Assembly Instructions .................................................. 5
Operating Instructions .................................................. 6
Using the Accessories .................................................. 7
Working with Detergents .............................................. 8
Shut Down and Clean-Up ............................................. 9
Taking a Break............................................................... 9
Winterizing and Long-Term Storage ............................ 9
Cleaning Tips ......................................................... 10-11
Optional Cleaning Accessories .................................. 11
Troubleshooting ..................................................... 12-13
2
Specifications
Max. Operating pressure 2500 PSI
Water volume 2.5 GPM
Detergent suction 0.15 – 0.20 GPM
Engine 6 HP Tecumseh OV 195
Part No. 1.194-307
Serial No. ______________
Kärcher Customer Support USA
Call: 1-800-537-4129 for help
or visit our website:
www.karcher-usa.com
Kärcher Customer Service CDN
Call: 1-800-465-4980 for help
or visit our website:
www.karcher.ca
Model G 2500 HT OVERVIEW
Item Description
1 Handle
2 Water inlet with garden hose connector
3 High pressure outlet
4 Detergent filter
5 Detergent suction tube
6 Spray wand
7 Trigger gun
8 High pressure hose
9 Trigger gun safety lock
10 Quick connect nozzles
(Red, Yellow, Green, White, Black)
11 Oil fill cap
12 Dipstick
13 Spark plug
14 Gas tank
15 Hose Reel (optional) Mounting Holes
Not pictured
- Dirtblaster nozzle
- Rubber grommets (5 pcs)
3
Caution
Follow the maintenance instructions specified in the manual
This machine has been designed for use with cleaning detergents by the
manufacturer. The use of other cleaning detergents may affect the operation of the
machine and void the warranty.
IMPORTANT PRECAUTIONS – Read First!
IMPORTANT SAFETY INSTRUCTIONS
WARNING When using this product basic
precautions should always be followed,
including the following:
WARNING Risk of Injection or Injury
Do Not Direct Discharge Stream At Persons.
Read all the instructions before using the
product.
Fire hazard! Do not add fuel with the en-
gine running. Do not operate if fuel has
been spilled. Instead, move the machine
to a different location and avoid creating
sparks.
Operate and fuel machine in a well venti-
lated area, free of devices featuring an
open pilot or flame such as boilers, water
heaters, etc.
High pressure jets can be dangerous if
subject to misuse. The jet must not be
directed at persons, animals, electrical
devices, or the machine itself.
4
Wear safety goggles.
Do not use acids, alkaline, solvents, or
any flammable material in this product.
These products can cause physical injuries to the operator and irreversible damage to the machine.
The machine has hot surfaces which can
cause burns. Operate the unit in a safe
environment and away from children.
Do not allow the high pressure hose to
come into contact with the muffler guard.
Do not leave the machine running unat-
tended.
Learn how to stop the machine and re-
lease pressure quickly. Be thoroughly fa-
miliar with the controls.
Stay alert watch what you are doing.
Do not operate the product when fatigued
or under the influence of alcohol or drugs.
Do not stand on unstable surfaces. Stand
with both feet balanced at all times.
Avoid tipping the machine on its side.
The Gun Safety Lock PREVENTS the
trigger from accidentally being engaged.
This safety feature DOES NOT lock
trigger in the on position.
Do not spray electrical connections, elec-
trical outlets or fixtures.
Do not touch hot surfaces or allow acces-
sories to contact hot surfaces.
Do not operate in an enclosed space, ex-
haust fumes are dangerous.
Do not operate near utilities with open fla-
mes.
Do not operate pressure washer without
the water turned on.
Do not use hot water.
WATER SUPPLY (Cold Water Only)
Water hose must be at least 5/8 inch in
diameter.
Flow rate of water supply must not fall
below 2.5 GPM (gallons per minute).
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 104°F/40°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.
We strongly recommend that this high pressure washer not be left running for periods
of 5 minutes or longer without the trigger
gun being engaged.
- SAVE THESE INSTRUCTIONS -
ASSEMBLY INSTRUCTIONS
Step 1
Attach the handle to the frame of the
pressure washer. Align holes, insert bolts,
and tighten with knobs.
Step 2
Attach the gun/hose storage handle.
Step 3
Fasten the rubber grommets in the nozzle
holder.
Step 4
Place the quick connect nozzles in the
nozzle holder.
Step 6
Pull the spring-loaded collar of the wand
back to insert your choice of quick connect
nozzle.
Step 7
Release the collar and push the nozzle until
the collar clicks.
DANGER
High pressure in nozzle area.
Risk of injury caused by improper locked
nozzle.
Make sure you hear a click when
inserting the nozzle tip into the wand.
Pull the nozzle to make sure it is seated
properly before operating your unit.
Step 8
Attach the high pressure hose to the spray
gun.
5
Step 5
Attach the wand to the spray gun.
OPERATING INSTRUCTIONS
Important!
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 engines
operating manual included with the unit.
Step 1
Check oil level.
Oil level should always be between the
FULL and ADD marks on the dipstick.
Be sure the machine is level when checking
the oil level. (Refer to the engines operating
manual for seasonal grades.).
Note: Improper oil levels will cause low oil
sensor to shut off engine.
Step 2
Fill gas tank with unleaded gasoline.
Do not use leaded gasoline.
Step 3
6
Connect the high pressure hose to the units
high pressure outlet.
Step 4
Connect garden hose to units water inlet.
Step 8
Slide the throttle lever up about
1/3 of the way toward the fast position.
Step 9
Pull the starter handle. If the engine fails to
start after 3 pulls, squeeze the trigger gun
to release pressure, and repeat step.
After the engine warms up enough to run
smoothly, move choke to open position and
throttle to fast position.
Step 5
Connect garden hose to the cold water
source and turn water on completely.
Do not use hot water.
Step 6
Trigger the gun to eliminate trapped air, wait
for a steady flow of water to emerge from
the spray nozzle.
Step 7
Slide the choke lever out to the closed
position (on a warm engine, leave the choke
lever in the open position).
USING THE ACCESSORIES
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 rubber nozzle holder, which is provided on the front of the
machine.
Red nozzle= 0°
for particularly stubborn accumulation
of grime.
Yellow nozzle = 15°
for dirt accumulation over a surface.
Green nozzle = 25°
for dirt accumulation over a large surface.
accumulation
White nozzle = 40°
for dirt accumulation over a large surface.
accumulation
Black detergent nozzle = 65°
for operating with detergent or cleaning
with negligible pressure.
Dirtblaster® nozzle
This nozzle features a 0º pencil jet which
rotates 360º for maximum dirt cutting action,
effectively increasing cleaning performance
up to 50%. This nozzle combines the
cleaning performance of a 0º pencil jet with
the surface coverage of a wide angle
nozzle.
Not recommended for soft materials,
siding, painted surfaces, decks or autos.
7
DANGER
High pressure in nozzle area.
Risk of injury caused by improper locked
nozzle.
Make sure you hear a click when
inserting the nozzle tip into the wand.
Pull the nozzle to make sure it is seated
properly before operating your unit. (See
page 5 step 5 + step 6)
WARNING
TO AVOID SERIOUS INJURY,
NEVER POINT SPRAY NOZZLE
AT YOURSELF, OTHER PERSONS
OR ANIMALS
WORKING WITH DETERGENTS
Detergents can only be applied with the
black nozzle.
Step 1
Install the black quick-connect low pressure
nozzle for detergent application at low
pressure.
Step 2
Adjust the filter end of the detergent tube
for light ( / 0.15 gpm), or maximum (+ /
0.20 gpm) detergent coverage.
Step 3
Fill a container with Kärcher detergent.
Place the filter end of detergent suction tube
into the detergent.
8
For best results see Cleaning Tips on
pages 10 & 11 for specific information
on how to clean different surfaces.
Always Use Kärcher
Detergents for Best Results.
Kärcher biodegradable detergents are
specially formulated to protect the
environment and your pressure washer.
Special formula wont clog the suction tube
filter and will protect the internal parts of
the pressure washer for a longer life. For
Kärcher Detergents, check your retailer
or call our service center for help.
The following Kärcher detergents are
available in USA / Mexico:
All Purpose and Vehicle Wash
Exterior House Cleaner
Deck & Patio Cleaner
Heavy Duty Degreaser
The following Kärcher detergents are
available in Canada:
Vehicle Wash
Pressure Wash
Deck + Fence Wash
Degreaser
Step 4
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.
Caution Never use:
• Bleach, Chlorine products and
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.
SHUTTING DOWN
Step 1
Remove detergent suction tube from
container and insert into 1 gallon of fresh
water. Siphon water at low pressure for one
minute.
Step 2
Press the throttle down to stop the engine.
Step 3
Turn off the water supply.
Step 4
Press trigger to release water pressure.
Step 5
Disconnect the garden hose from the water
inlet on the unit.
Step 6
Disconnect the high pressure hose from the
high pressure outlet.
Step7
Engage the gun safety lock.
WINTERIZING AND LONG-TERM
STORAGE
1.Disconnect all water connections.
2.Turn on the machine for a few
seconds, until the water which had
remained in the pump exits.
Turn off immediately.
3.Do not allow high pressure hose to
become kinked.
4.Store the machine and accessories in
a room which does not reach freezing
temperatures.
Caution: Failure to follow the above
directions will result in damage to the
pump assembly and accessories.
Kärcher also recommends the regular
practice of using a pump protector like
Kärcher Pump Protector to help during
storage in the winter months.
9
TAKING A BREAK
... FIVE MINUTES OR MORE
Step 1
Slide the throttle down to stop the engine.
Step 2
Press trigger to release water pressure.
Step 3
Engage gun safety lock.
CLEANING TIPS
Deck Cleaning
(with or without detergent)
Pre-rinse deck and surrounding area with
fresh water. If using Kärcher Deck & Patio
Cleaner, (Canada: Deck + Fence Wash)
place detergent suction tube directly into
cleaning solution and apply to surface at
low pressure. For best results, limit your
work area to smaller sections of approximately 25 square feet. Allow detergent 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 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.
Caution: Do not use rotating nozzle spray
wand on wood surface as it may cause
damage.
House Siding
10
(with or without detergent)
Pre-rinse cleaning surface with fresh water.
If using Kärcher Exterior House Cleaner
(Canada: Pressure Wash), place detergent
suction tube directly into cleaning solution
and apply to surface at low pressure (for
best results, limit your work area to sections
of approximately 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. Rinse at high
pressure from top to bottom in an even
sweeping motion keeping the spray nozzle
approximately 6 inches from the cleaning
surface.
Caution: Do not use rotating nozzle spray
wand on siding as it may cause damage.
Cement Patios, Brick and Stone
(with or without detergent)
Pre-rinse cleaning surface with fresh water.
If using Kärcher All Purpose and Vehicle
Wash (Canada: Pressure Wash or
Degreaser), place detergent suction tube
directly into cleaning solution and apply to
surface at low pressure. For best results,
limit your work area to smaller sections of
approximately 25 square feet. Allow
detergent 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 36 inches from the cleaning surface. Always
clean from top to bottom and from left to
right. For removing extremely stubborn
stains, use Kärcher Rotating Nozzle Spray
Wand.
Cars, Boats & Motorcycles
(with or without detergent)
Pre-rinse vehicle with fresh water. If using
Kärcher All Purpose and Vehicle Wash,
place detergent suction tube directly into
cleaning solution and 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. Rinse at high
pressure in a sweeping motion keeping the
spray nozzle approximately 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.
Caution: Do not use rotating nozzle spray
wand on vehicles as it may cause damage.
CLEANING TIPS –
continued
Barbecue Grills, Outdoor Power
Equipment & Gardening Tools
(with or without detergent)
Pre-rinse cleaning surface with fresh water.
If using Kärcher All Purpose and Vehicle
Wash or Heavy Duty Degreaser (Canada:
Pressure Wash or Degreaser), place
detergent suction tube directly into cleaning
solution and 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 36 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. To remove caked on mud from
garbage cans, lawn mower blades, wheel
barrels or other non-sensitive metal
surfaces, you may want to use the Kärcher
Rotating Nozzle Spray Wand.
Caution: Do not use rotating nozzle spray
wand on cloth, plastic or other sensitive
surfaces as it may cause damage.
Patio & Lawn Furniture
(with or without detergent)
Pre-rinse furniture and surrounding area
with fresh water. If using Kärcher All Purpose and Vehicle Wash (Canada: Pressure
Wash), place detergent suction tube directly
into cleaning solution and apply to surface
at low pressure. Allow Kärcher detergent
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 3-6 inches
from the cleaning surface. For best results,
clean from top to bottom and from left to
right.
Caution: Do not use rotating nozzle spray
wand on patio or lawn furniture as it may
cause damage.
Recommendations
Before cleaning any surface an
inconspicuous area should be cleaned to
test spray pattern and distance for
maximum cleaning results.
If painted surfaces are pealing 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.
OPTIONAL CLEANING ACCESSORIES
Optional cleaning accessories are available
to further enhance your cleaning
capabilities.
Wash Brush
Underbody Wand
Extension Wand
Extension Hose
Hose Reel
Water Siphon Kit
11
TROUBLESHOOTING
Please remove the spark plug cable to
prevent accidental ignition of the engine
before making any repair.
Engine will not start.
• No gasoline.
- Fill gas tank.
• Low oil level sensor activated.
- Add oil.
• Choke is not in correct position.
- Slide choke lever out to closed
position.
• Engine throttle is not in correct
position.
- Slide the throttle lever up about 1/3 of
the way toward the fast positon.
• Pressure built up in the high pressure
washer.
- Squeeze the trigger to release the
pressure.
For additional engine problems refer
to the engine owners manual.
12
Unit does not reach high pressure.
• Diameter of garden hose is too small.
- Replace with a 3/4 inch garden hose.
• Water supply is restricted.
- Check garden hose for kinks, leaks
and blockage.
• Not enough inlet water supply.
- Open water source full force.
• Water inlet filter is clogged.
- Remove filter and rinse out in warm
water.
• Black detergent nozzle is attached.
- Remove black detergent nozzle and
attach a high pressure nozzle.
Output pressure varies high and low.
• Not enough inlet water supply.
- Turn water on full force. Check garden
hose for kinks, leaks or blockage.
• 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 suction tube.
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.
• Detergent filter valve is at lowest
setting.
- Set detergent filter valve to a higher
setting.
• 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.
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