Landa HS-3000 User manual

OPERATOR’S MANUAL
For technical assistance or the dealer nearest you, consult our web page at www.landa.com
HS-3000
HS
89139430-8
8.913-943.0

3
CONTENTS
8.913-943.0 • LANDA HS • Rev. 4/13
Model Number __________________________________________
Serial Number __________________________________________
Date of Purchase _________________________________________
The model and serial numbers will be found on a decal attached to the
pressure washer. You should record both serial number and date of
purchase and keep in a safe place for future reference.
Introduction 4
Important Safety Information 4-5
Component Identification 6
Assembly Instructions 7
Installation 8
Operating Instructions 9
Detergents & General Washing Techniques 10
Shut Down & Clean-Up 11
Storage 11
Maintenance and Service 12-14
Troubleshooting 15-16
Preventative Maintenance 17
Oil Change Record 17
Chassis Assembly 18
Chassis Assembly Parts List 19
Tank & Burner Assembly 20
Tank & Burner Assembly Parts List 21
Exterior View & Parts List 22
Specifications 23
Surefire Burner Replacement Parts & Parts List 24-25
Warranty

8.913-943.0 • LANDA HS • Rev. 4/13
OPERATOR’S MANUAL PRESSURE WASHER
4
TRIGGER GUN KICKS
BACK - HOLD WITH
BOTH HANDS
WARNING
WARNING: Spray gun kicks
back — hold with both hands.
9. Grip cleaning wand securely
with both hands before starting.
Failure to do this could result in
injury from a whipping wand.
Thank you for purchasing a Landa Pressure Washer.
This manual covers the operation and maintenance
of the HS-3000 heater module. All information in this
manual is based on the latest product information
available at the time of printing.
Landa, Inc. reserves the right to make changes at any
time without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must have an understanding
of the manufacturer’s operating instructions and
warnings before using this Landa pressure washer.
Warning information should be emphasized and un-
derstood. If the operator is not fluent in English, the
manufacturer’s instructions and warnings shall be read
to and discussed with the operator in the operator’s
native language by the purchaser/owner, making sure
that the operator comprehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
SAVE THESE INSTRUCTIONS
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number. Use only identical replacement
parts.
This machine is to be used only by trained opera-
tors.
CAUTION:To reduce the risk of
injury, read operating instruc-
tions carefully before using.
1. Read the owner's manual
thoroughly. Failure to follow
instructions could cause
malfunction of the machine
and result in death, serious
bodily injury and/or property
damage.
2. Know how to stop this product and bleed pressures
quickly. Be thoroughly familiar with the controls.
3. Stay alert - watch what you are doing.
4. All installations must comply with local codes.
Contact your electrician, plumber, utility company
or the selling distributor for specific details.
To comply with the National Electric Code (NFPA
70) and provide additional protection from risk of
shock, this product is provided with a ground fault
circuit interrupter (GFCI) built into the power cord
plug (250V 30 amp or less, 1 PH). If replacement
of the plug or cord is needed, use only identical
replacement parts.
DANGER: Improper connection of the equipment-
grounding conductor can result in a risk of elec-
trocution. Check with a qualified electrician or
service personnel if you are in doubt as to whether
the outlet is properly grounded. Do not modify the
plug provided with the product - if it will not fit the
outlet, have a proper outlet installed by a qualified
electrician.
WARNING: Do not operate near
flammable liquids which can
create fumes and can ignite
causing property damage or
severe injury.
WARNING: Do not use gaso-
line, crankcase drainings or oil
containing gasoline, solvents
or alcohol. Doing so will result
in fire and/or explosion.
WARNING: Do not spray flammable liquids.
Operate only where an open torch is permitted.
5. This oil burning machine shall be installed only in
locations where combustible dusts and flammable
gases or vapors are not present.
6. In these oil burning models, use only kerosene,
No. 1 home heating fuel, or diesel.
7. Risk of explosion - do not spray flammable
liquids. Operate only where open flame or torch is
permitted.
WARNING: Keep water spray,
wand and high pressure hose
away from electric wiring or
fatal electric shock may result.
Read warning tag on electrical
cord.
8. To protect the operator from
electrical shock, the machine
must be electrically ground-
ed. It is the responsibility of the owner to connect
this machine to a UL grounded receptacle of proper
voltage and amperage ratings. Do not spray water
on or near electrical components. Do not touch
machine with wet hands or while standing in water.
Always disconnect power before servicing.
WARNING
KEEP WATER SPRAY
AWAY FROM ELEC-
TRICAL WIRING.
WARNING
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
WARNING
RISK OF FIRE.
DO NOT USE WITH
FLAMMABLE LIQUIDS.
INTRODUCTION & IMPORTANT SAFETY INSTRUCTIONS

8.913-943.0 • LANDA HS • Rev. 4/13
5
PRESSURE WASHER OPERATOR’S MANUAL
WARNING
EAR PROTECTION
MUST BE WORN
WARNING: Appropriate ear
protection must be worn if
attached pressure washer
exceeds 85 db.
WARNING
RISK OF INJURY
FROM FALLS WHEN
USING LADDER.
WARNING: Be extremely careful
when using a ladder, scaffold-
ing or any other relatively un-
stable location. The cleaning
area should have adequate
slopes and drainage to reduce
the possibility of a fall due to
slippery surfaces.
WARNING
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
HIGH PRESSURE
SPRAY CAN PIERCE
SKIN AND TISSUES.
HOT DISCHARGE
FLUID. DO NOT
TOUCH OR DIRECT
DISCHARGE STREAM
AT PERSONS.
CAUTION
17. Do not allow acids, caustic or abrasive fluids to
pass through the this machine.
18. Inlet water must be from a cold, fresh, city water
supply.
19. To reduce the risk of injury, close supervision is
necessary when a product is used near children.
Do not allow children to operate the pressure
washer. This machine must be attended during
operation.
20. The best insurance against an accident is
precaution, and knowledge of the machine.
21. Do not operate this product when fatigued or under
the influence of alcohol or drugs. Keep operating
area clear of all persons.
22. Landa will not be liable for any changes made to
our standard machines, or any components not
purchased from Landa.
23. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
24. Follow the maintenance instructions specified in
the manual.
25. When making repairs disconnect from electrical
source.
26. Turn burner off and open spray gun to allow
water to flow and cool coil to 100° before turning
machine off.
27. Before disconnecting high pressure hose from
HS-3000 water outlet, open spray gun to relieve
back pressure in hose.
CAUTION: This machine produces hot water and
must have insulated spray gun, wand and other
discharge components attached to protect the
operator.
IMPORTANT SAFETY INSTRUCTIONS
WARNING: Risk of injection or
severe injury to persons - Keep
clear of nozzle - Do not touch
or direct discharge stream at
persons. This machine is to
be used only by trained op-
erators.
CAUTION: Hot discharge fluid.
Do not touch or direct dis-
charge stream at persons.
10. High pressure developed by
the attached pressure washer
can cause bodily injury or dam-
age. Use caution when operating.
Do not point the spray gun at any-
one or at any part of the body.
11. Never make adjustments on machine while it is in
operation.
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne
and fly at high speeds.
12. Eye safety devices, ear,
hand and foot protection
must be worn when using
this equipment.
WARNING: Risk of asphyxia-
tion. Use this product only in a
well ventilated area.
13. When the machine is work-
ing, do not cover or place
in a closed space where
ventilation is insufficient.
WARNING: Risk of fire. Do not
add fuel when the machine is
operating or still hot.
14. Check to make sure burner
shuts off when spray gun
trigger is closed.
15. Protect from freezing.
16. To prevent a serious injury,
make certain quick coupler on
discharge hose has locked before using pressure
washer.
WARNING
PROTECTIVE
EYEWEAR AND
CLOTHING MUST BE
WORN.
WARNING
RISK OF
ASPHYXIATION.
USE ONLY IN A WELL
VENTILATED AREA.

8.913-943.0 • LANDA HS • Rev. 4/13
OPERATOR’S MANUAL PRESSURE WASHER
6
COMPONENT IDENTIFICATION
89139430-3
Customer’s
Pressure Washer,
Attached
(Not Included)
Fresh
Water Faucet
Water Supply Hose
(Not Included)
Stackless
Top
Adapter
Kit
30-199
NOTE: The water in this machine is hot. The
wand and spray gun must be insulated
Hose, spray gun & wand and attached pressure
washer not included on the HS-3000
Trigger
Spray Gun
HS Burner
Switch
15 Amp
GFCI
Collar
Insulated Handle
High
Pressure
Hose
9 ft.
Connecting
Hose
Discharge Nipple
Inlet
Connector
Quick Coupler

8.913-943.0 • LANDA HS • Rev. 4/13
7
PRESSURE WASHER OPERATOR’S MANUAL
ASSEMBLY INSTRUCTIONS
STEP 1: Location of machine is
important. Avoid installing near
combustible material or in poorly
ventilated areas.
Connect the power cord into the
proper electrical outlet, then push
in the GFCI reset button. (Refer to
serial plate for information.)
STEP 2: Connect high pressure
hose from the attached pressure
washer (not included) to the hot
water discharge nipple by sliding
quick coupler collar back. Insert
quick coupler onto discharge nipple
and secure by pushing quick coupler
collar forward. (See page 6)
STEP 3: Attach variable pressure
control wand to spray gun using
teflon tape on threads to prevent
leakage. Position safety latch to
prevent trigger from being pulled.
STEP 4: Pull the spring-loaded col-
lar of the wand coupler collar back
to insert your choice of pressure
nozzle. CAUTION: Never replace
nozzles without engaging the
safety latch on the spray gun
trigger.
89139430-4
Trigger
Gun
High Pressure
Hose
Safety
Latch
Trigger
Wand
STEP 5: Release the coupler collar
and push the nozzle until the collar
clicks. Pull the nozzle to make sure
it is seated properly.
High
Pressure
Nozzle
Wand
Collar
Pressure
Nozzle
Wand
Coupler
Collar

8.913-943.0 • LANDA HS • Rev. 4/13
OPERATOR’S MANUAL PRESSURE WASHER
8
INSTALLATION
Place machine in a convenient location providing
ample support, draining and room for maintenance.
Location:
The location should protect the machine from
damaging environmental conditions, such as; wind,
rain, and freezing.
Machine must be stored indoors when not in
use.
1. The machine should be run on a level surface
where it is not readily influenced by outside
sources such as strong winds, freezing tempera-
tures, rain, etc.The machine should be located to
allow accessibility for refilling of fuel, adjustments
and maintenance. Normal precautions should be
taken by the operator of the machine to prevent
excess moisture from reaching the power unit or
electrical controls.
2. It is recommended that a partition be made be-
tween the wash area and the machine to prevent
direct water spray from coming in contact with the
machine. Excess moisture reaching any electric
components or electrical controls will reduce ma-
chine life and may cause electrical shorts.
3. During installation of the machine, beware of
poorly ventilated locations or areas where exhaust
fans may cause an insufficient supply of oxygen.
Sufficient combustion can only be obtained when
there is a sufficient supply of oxygen available for
the amount of fuel being burned.
Electrical:
This machine, when installed, must be electri-
cally grounded in accordance to local codes. Check
for proper power supply using a volt meter.
Placement:
Do not locate near any combustible material.
Keep all flammable material at least 20 feet away.
Allow enough space for servicing the machine.
Local code will require certain distances from floor and
walls. (Two feet away should be adequate.)
Water Source:
The water source for the machine should be supplied
by a 5/8" I.D. garden hose with a city water pres-
sure of not less than 30 psi. If the water supply is
inadequate, or if the garden hose is kinked, the
attached pressure washer will run very rough and the
burner will not fire.
Connection:
Connect the wand, nozzle, hose and spray gun (where
applicable). On pipe thread connections, use teflon
tape to avoid water leaks. (See Component Identifica-
tion on page 5.)
Venting:
Adding exhaust vent pipe to your oil fired burner is
not recommended. It restricts air flow, causing carbon
build-up, which affects the operation, and increases
maintenance on the coil. If a stack must be used,
refrain from using 90° bends. If the pipe can not go
straight up then use only 45° bends and go to the next
size pipe. The overall pipe length must not exceed 6
feet in length. Adjust burner air settings after stack is
installed

8.913-943.0 • LANDA HS • Rev. 4/13
9
PRESSURE WASHER OPERATOR’S MANUAL
OPERATING INSTRUCTIONS
STEP 1: Connect the high pressure
hose quick coupler from attached
pressure washer to discharge nipple
by sliding the quick coupler collar
back and inserting quick coupler on
coupler nipple and pushing the quick
coupler collar forward to secure it.
STEP 2: Grip spray gun and wand
handle securely.
Start attached pressure washer
according to the manufacturers in-
structions.When a steady stream of
water flows from the spray gun and
wand the machine is ready for cold
water cleaning.
STEP 3: For hot water washing,
turn the HS burner switch to the
ON position. (The burner will light
automatically.)
89139430-9
89139430-10
Burner
Switch
Selection of high or low pressure is accompanied by
turning the handle.
NOTE: High pressure nozzle must be inserted at end
of wand to obtain high pressure. To apply soap read
operator's manual.
NOTE: High pressure hose, nozzles, gun and wand
are included with attached pressure washer and not
part of model HS-3000.
IMPORTANT NOTICE: Read operating instructions of
connected pressure washer.
Variable Pressure
Control Handle Trigger
Variable Pressure
Wand (VP)
High
Pressure
Nozzle
Brass Soap
Nozzle
* Not Included

8.913-943.0 • LANDA HS • Rev. 4/13
OPERATOR’S MANUAL PRESSURE WASHER
10
89139430-5
WARNING: Some detergents
may be harmful if inhaled or
ingested, causing severe nau-
sea, fainting or poisoning. The
harmful elements may cause
property damage or severe
injury.
STEP 1: Connect detergent
injector to discharge nipple on
machine.
Connect high pressure hose to injector with quick cou-
pler. (Check to make sure locking coupler sleeves are
in proper position before applying water pressure).
STEP 2: Use detergent designed
specifically for pressure wash-
ers. Household detergents could
damage the pump. Prepare deter-
gent solution as required by the
manufacturer. Fill a container with
pressure washer detergent. Place
the filter end of detergent suction
tube into the detergent container.
STEP 3: With safety latch on
spray gun engaged, secure black
detergent nozzle into quick cou-
pler. NOTE: Detergent cannot be
applied using red, yellow, green or
white nozzles.
STEP 4: With the engine running, pull trigger to op-
erate machine. Liquid detergent is drawn into the ma-
chine and mixed with water. Apply detergent to work
area. Do not allow detergent to dry on surface.
IMPORTANT:You must flush the detergent injection
system after each use by placing the suction tube
into a bucket of clean water, then run the pressure
washer in low pressure for 1-2 minutes.
IMPORTANT:The instructions on this page pertain
to the pressure washer used in connection with
model HS-3000.
CLEANING TIPS
Pre-rinse cleaning surface with fresh water. Place de-
tergent suction tube directly into cleaning solution and
apply to surface at low pressure (for best results, limit
your work area to sections approximately 6 feet square
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 brush to remove stubborn dirt. Rinse at
high pressure from top to bottom in an even sweep-
ing motion keeping the spray nozzle approximately
1 foot from cleaning surface. Use overlapping strokes
as you clean and rinse any surface. For best surface
cleaning action spray at a slight angle.
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 peelingor chipping,use
extreme caution as pressure washer may remove
the loose paint from the surface.
 •Keepthespraynozzleasafedistancefromthe
surface you plan to clean. High pressure wash a
small area, then check the surface for damage.
If no damage is found, continue to pressure
washing.
CAUTION - Never use:
 •Bleach,chlorine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 machine and will
damage the surface being cleaned.
RINSING
It will take a few seconds for the detergent to clear.
Apply safety latch to spray gun. Remove black soap
nozzle from the quick coupler. Select and install the
desired high pressure nozzle. NOTE: You can also stop
detergent from flowing by simply removing detergent
siphon tube from bottle.
WARNING
DETERGENT AND GENERAL CLEANING TECHNIQUES
Detergent
Injector
Discharge
Nipple
High Pressure
Hose

8.913-943.0 • LANDA HS • Rev. 4/13
11
PRESSURE WASHER OPERATOR’S MANUAL
WARNING
PROTECT FROM
FREEZING
WARNING: Protect machine
from freezing.
89139430-11
SHUTTING DOWN AND CLEAN-UP
STEP 1: Remove detergent suction
tube from container and insert into
one (1) gallon of fresh water. Pull
trigger on spray gun and siphon
water for one minute.
STEP 2: Turn HS burner switch off
and continue spraying water, al-
lowing the water to cool.
After water has cooled to less than
100°, turn the attached pressure
washer off.
STEP 3: Turn water off.
STEP 4: Open the
spray gun to relieve
remaining pressure.
CAUTION: Always store your pressure washer in a
location where the temperature will not fall below
32°F (0°C).The heating coil in this machine is sus-
ceptible to permanent damage if frozen. FREEZE
DAMAGE IS NOT COVERED BY WARRANTY.
1. Stop the pressure washer, squeeze spray gun
trigger to release pressure.
2. Use compressed air at the inlet hose to blow
water out discharge nipple.
3. 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 your pressure washer.
After Extended Storage
CAUTION: Prior to restarting, thaw out
any possible ice from pressure washer
hoses, spray gun or wand.
STORAGE
Burner
Switch

8.913-943.0 • LANDA HS • Rev. 4/13
OPERATOR’S MANUAL PRESSURE WASHER
12
MAINTENANCE & SERVICE
PREVENTATIVE
MAINTENANCE
1. Use clean fuel - kerosene, No. 1 home heating
fuel or diesel. Clean or replace fuel filter every
100 hours of operation. Avoid water contaminated
fuel as it will seize up the fuel pump. De-soot coils
monthly. Use an additive if diesel is being used.
2. Check to see that the attached pressure washer
water pump is properly lubricated.
3. Follow winterizing instructions to prevent freeze
damage to pump and coils.
4. Always neutralize and flush detergent from system
after use.
5. If water is known to be high in mineral content, use
a water softener on your water system, or de-scale
as needed.
6. Do not allow acidic, caustic or abrasive fluids to
be pumped through system.
7. Always use high grade quality Landa cleaning
products.
8. Never run attached pressure washer pump dry for
extended periods of time.
9. If machine is operated with smoky or eye burning
exhaust, coils will soot up, not letting water reach
maximum operating temperature. (See section on
Air Adjustments).
10.Never allow water to be sprayed on or near the
motor or burner assembly or any electrical com-
ponent.
11. Delime coils as per instructions.
It is advisable, periodically, to visually inspect the
burner. Check air inlet to make sure it is not clogged
or blocked.Wipe off any oil spills and keep this equip-
ment clean and dry.
The areas around the Landa washer should be kept
clean and free of combustible materials, gasoline and
other flammable vapors and liquids.
The flow of combustion and ventilating air to the burner
must not be blocked or obstructed in any manner.
MAINTENANCE AND SERVICE
Winterizing Procedure
Damage due to freezing is not covered by warranty.
Adhere to the following cold weather procedures when-
ever the washer must be stored or operated outdoors
under freezing conditions.
During winter months, when temperatures drop be-
low 32°F, protecting your machine against freezing is
necessary. Store the machine in a heated room. If this
is not possible use compressed air on the 9 ft. hose
end and, by injecting compressed air, all water will be
blown out of the system.
High Limit Thermostat
For safety, each machine is equipped with a high limit
control switch. In the event the temperature of the water
should exceed its operating temperature the high limit
control will turn the burner off until the water cools.
Cleaning of Coils
In alkaline water areas, lime deposits can accumulate
rapidly inside the coil pipes. This growth is increased
by the extreme heat build up in the coil. The best
prevention for liming conditions is to use high quality
cleaning detergents. In areas where alkaline water is
an extreme problem, periodic use of Landa Delim-
ing Powder (Landa Part #9-028008) will remove lime
and other deposits before coil becomes plugged.
(See Deliming Instructions for use of Landa Deliming
Powder.)
Deliming Coils
Periodic flushing of coils or optional float tank is rec-
ommended.
Step 1 Fill a container or float tank with 4 gallons
of water, then add 1 lb. of deliming powder.
Mix thoroughly.
Step 2 Remove nozzle from wand assembly and
put spray gun and wand assembly into float
tank. Attach a nylon stocking to the end of
the wand to collect debris.
Step 3 Attach a short section (3-5 ft.) of garden
hose to the attached pressure washer to
siphon solution from an elevated container.
Turn attached pressure washer switch on,
allowing solution to be pumped through coils
back into the container. Solution should be
allowed to circulate 2-4 hours.
Step 4 After circulating solution flush entire system
with fresh water. Reinstall high pressure
nozzle into wand.
Removal of Soot and Heating Coil
In the heating process, fuel residue in the form of soot
deposits may develop between the heating coil pipe
and block air flow which will affect burner combustion.
When soot has been detected on visual observation,
the soot on the coil must be washed off after follow-
ing the coil removal steps (See Coil Removal on page
10).
Rupture Disk
If pressure from pump or thermal expansion should
exceed safe limits, the rupture disk will burst, allow-
ing high pressure to be discharged through hose
to ground. When the disk ruptures it will need to
be replaced. Inspect rupture disk annually for any
obstructions.

8.913-943.0 • LANDA HS • Rev. 4/13
13
PRESSURE WASHER OPERATOR’S MANUAL
89139430-7
Date Code
Serial No.
XXXXXX
Part No.
0000-0000.0
MAINTENANCE & SERVICE
the fuel solenoid valve functions properly. This can
be done by operating the machine and checking to
see that when the trigger on the spray gun is in the
off position, the burner is not firing.
Fuel Pressure Adjustment
To adjust fuel pressure, turn the adjusting screw
(located at the regulator pressure port) clockwise to
increase, counterclockwise to decrease. Do not exceed
200 psi. NOTE: When changing fuel pump, a by-pass
plug must be installed in return line port or fuel pump
will not prime.
Air Adjustment
Machines are preset and performance tested at the
factory - elevation 100' above sea level. A one-time ini-
tial correction for your location will pay off in economy,
performance, and extended service life. If a smoky or
eye-burning exhaust is being emitted from the stack,
two things should be checked. First, check the fuel to
be certain that kerosene or No. 1 home heating fuel
is being used. Next, check the air adjustment on the
burner. An oily, black, smoky fire indicates a lack of
air and the air band should be moved to allow the air
to flow through the burner. Sharp eye-burning white
fumes indicate too much air flowing through the com-
bustion chamber. The air band should be moved to
allow less air to flow through the burner.
To adjust: start machine and turn burner ON. Loosen
two locking screws found on the air band (refer to illus-
tration) and close openings until black smoke appears
from burner exhaust vent. Note air band position. Next,
slowly open the air band until white smoke just starts to
appear.Turn air band halfway back to the black smoke
position previously noted. Tighten locking screws.
Fuel
Use clean fuel oil that is not contaminated with water
and debris. Replace fuel filter and drain tank every
100 hours of operation. Use No. 1 or No. 2 Heating
Oil (ASTM D306) only. NEVER use gasoline in your
burner tank. Gasoline is more combustible than fuel
oil and could result in a serious explosion. NEVER
use crankcase or waste oil in your burner. Fuel unit
malfunction could result from contamination.
Ignition Circuit
Periodically inspect wires, spring contact and elec-
trodes for condition, security and proper spacing.
Transformer test: (CAUTION 10,000 VOLTS) use
defect free insulated screwdriver and keep fingers off
blade! Lay blade across one contact: OK if arc will span
1/2" between end of blade and other contact.
Electrode Setting:
(See illustration below)
Burner Nozzle
Keep the tip free of surface deposits by wiping it with
a clean, solvent-saturated cloth, being careful not to
plug or enlarge the nozzle. For maximum efficiency,
replace the nozzle each season.
Fuel Control System
The HS-3000 utilizes a fuel solenoid valve located on
the fuel pump to control the flow of fuel to the com-
bustion chamber. This solenoid, which is normally
closed, is activated by a flow switch when water is
flowing through it. When an operator releases the
trigger on the spray gun, the flow of water through the
flow switch stops, turning off the current to the fuel
solenoid. The solenoid then closes, shutting off the
supply of fuel to the combustion chamber. Controlling
the flow of fuel in this way gives an instantaneous burn
or no burn situation, thereby eliminating high and low
water temperatures, and combustion smoke normally
associated with machines incorporating a spray gun.
Periodic inspection is recommended to insure that
5/32" Gap
Nozzle
7/16"
Electrode
1/16"
Electrodes Check: Periodically check wiring connections.
If necessary to adjust electrodes, use diagram.
Air Band
Locking Screw
Air Band
Air Shutter
Locking Screw
Air Band
Locking Screw

8.913-943.0 • LANDA HS • Rev. 4/13
OPERATOR’S MANUAL PRESSURE WASHER
14
Coil Removal HS-3000
Removal of the coil, because of freeze breakage,
thermal expansion or to clean soot from it, can be
done quickly and easily.
1. Disconnect hose from inlet side of the coil.
2. Disconnect electrical connection to the
thermostat.
3. Remove rupture disk and associated fittings.
4. Remove the 3-3/8" bolts from each side of coil
and tank assembly (these bolts are used to fasten
handles to chassis).
5. Remove burner assembly from combustion
chamber.
6. Disconnect 1/2" pipe nipples and tee fittings from
inlet and discharge side of coil.
7. Remove top tank wrap exposing insulation and
coil. Bend back insulation tabs in exhaust stack.
Then fold back insulation.
8. Remove bolts from underneath that hold down coil
to bottom wrap.
9. Remove coil.
10. Replace or repair any insulation found to be torn
or broken.
11. Reinstall new or cleaned coil reversing Steps 9
through 1.
NOTE: Before step 6, lift coil and tank assembly onto
some type of exposed support for ease of removing
inlet and discharge fittings.
MAINTENANCE & SERVICE

8.913-943.0 • LANDA HS • Rev. 4/13
15
PRESSURE WASHER Troubleshooting Guide
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
BURNER WILL NOT
LIGHT
Disconnected or short in electrical
wiring
All wire contacts should be clean and tight. No
breaks in wire.
Burner motor thermal protector
tripped
If tripped, check voltage, connections and
extensions for cause. Check fuel pump shaft
rotation for binding, causing motor to
overheat.
Flex-coupling slipping on fuel pump
shaft or burner motor shaft
Replace if needed.
On-off switch defective Check continuity through burner switch.
Heavy sooting on coil and burner,
can cause interruption of air flow
and shorting of electrodes
Clean as required.
Improper electrode setting Clean and test according to diagram in
operator's manual.
Fuel not reaching combustion
chamber
Check fuel pump for proper flow. Check
solenoid flow switch on machines with spray
gun control for proper on-off flow switch.
Fuel solenoid malfunction Check by placing screwdriver inside coil then
turn machine on, open spray gun and check
for magnetic pull.
Clogged burner nozzle Replace.
Water not turned on Turn on water to activate burner flow switch.
Flow switch malfunction Remove, test for continuity and replace as
needed.
MACHINE SMOKES Improper fuel or water in fuel Drain tank and replace contaminated fuel.
Improper air adjustment Readjust air bands on burner assembly.
Low fuel pressure Adjust fuel pump pressure to specifications.
Air leaks in fuel lines Check fuel lines for leaks or air bubbles.
Tighten or replace as needed.
Plugged or dirty burner nozzle Replace.
Faulty burner nozzle spray pattern Replace nozzle.
Heavy accumulation of soot on coils
and burner assembly
Remove coils and burner assembly. Clean
thoroughly.
Misaligned electrode Realign electrodes to specifications.
Fuel filter partially clogged Replace as needed.
Obstruction in smoke stack Check for insulation blockage or other foreign
objects.
Soot build up on coils Clean coils with soot remover.
Lime build up in coils Clean inside of coils using Landa's coil
cleaner.
Improper burner nozzle See exploded view parts list.

8.913-943.0 • LANDA HS • Rev. 4/13
PRESSURE WASHER Troubleshooting Guide
16
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
LOW WATER
TEMPERATURE
Improper fuel or water in fuel Drain fuel tank and replace with proper fuel.
Low fuel pressure Increase fuel pressure.
Weak fuel pump Check fuel pump temperature. Replace
pump if needed.
Fuel filter partially clogged Replace as needed.
Soot build up on coils Clean coils with soot remover.
Lime build up on coils Clean inside of coils using Landa's coil
cleaner.
Improper burner nozzle See exploded view parts list.
WATER
TEMPERATURE
TOO HOT
Incoming water to machine warm or
hot
Lower incoming water temperature.
Fuel pump pressure too high Lower fuel pressure.
Fuel pump defective Replace fuel pump.
Detergent line sucking air Tighten all clamps. Check detergent line for
holes.
Defective high limit switch Replace.
Incorrect fuel nozzle size See exploded view parts list.
Insufficient water supplied Check GPM to machine.
Restricted water flow Check nozzle for obstruction, proper size.

8.913-943.0 • LANDA HS • Rev. 4/13
17
PRESSURE WASHER OPERATOR’S MANUAL
PREVENTATIVE MAINTENANCE
This pressure washer was produced with the best available materials and quality craftsmanship. However, you
as the owner have certain responsibilities for the correct care of the equipment. Attention to regular preventative
maintenance procedures will assist in preserving the performance of your equipment. Contact your Landa,
Inc. dealer for maintenance. Regular preventative maintenance will add many hours to the life of your pressure
washer. Perform maintenance more often under severe conditions.
MAINTENANCE SCHEDULE
Replace Fuel Lines Annually
Pump
Inspect Daily inspect oil level
Change After first 50 hours, then every 500 hours or annually
Clean Burner Filter Monthly (More often if fuel quality is poor)
Remove Burner Soot Annually
Burner Adjustment/Cleaning Annually
Descale Coil Annually (more often if required)
Replace High Pressure Nozzle Every 6 months
Replace Quick Connects Annually
Clean Water Screen/Filter Weekly
Clean Float/Supply Tank Every 6 months
Replace HP Hose Annually if there is any sign of wear
Grease Motor Every 10,000 hours
Replace Burner Nozzle Annually
OIL CHANGE RECORD
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change

8.913-943.0 • LANDA HS • Rev. 4/13
OPERATOR’S MANUAL PRESSURE WASHER
18
89139430-2
CHASSIS ASSEMBLY
Fuel Line to Fuel
Pump
Fuel Line to
Fuel Filter
19
18
26
24
25
23
3
1
21
2
22
20
28
7
8
9
11
10
12
33
17
17
16
14
6
4
5
13
27
3
3
14
4
4
4
4
4
3
3
5
11
10
30
31
15
34
32 29
Brake Assembly
35

8.913-943.0 • LANDA HS • Rev. 4/13
19
PRESSURE WASHER OPERATOR’S MANUAL
CHASSIS ASSEMBLY PARTS LIST
ITEM PART NO. DESCRIPTION QTY
1 8.912-201.0 U-Handle, Hot 1
2 9.802-069.0 Grip, 1", Handle (Waffle) 2
3 9.802-728.0 Bolt, 3/8" x 2", HH Grades 6
4 8.725-394.0 Washer, 3/8", SAE Flat 6
5 8.725-395.0 Nut, 3/8", ESNA, NC 4
6 9.802-792.0 Nut, Cage, 3/8" x 12 Gauge 2
7 8.912-256.0 Chassis, HS-3000 1
8 8.911-226.0 Axle, 27" 2
9 4-0303 Wheel & Tire Assy.,
4" w/Tube 4
10 90-4005 Washer, 5/8", Flat, SAE 4
11 9.802-782.0 Collar, 5/8" Bore Shaft
3010 4
12 8.706-494.0 Dip Tube, Plastic, 7.5" 1
13 9.802-054.0 Elbow, Fuel Tank 1
14 6.390-126.0 Clamp, Hose, .46 - .54 2
15 90-100472 Bolt, 1/4-20 x 1.0 PLT,
Carriage, Zinc 4
16 8.706-941.0 Hose Barb, 1/4" Barb x 1/4"
ML Pipe 1
17 4-02100000 Hose, 1/4", Push-on, 18" Long 2
ITEM PART NO. DESCRIPTION QTY
18 10-020110 Label, Use Only Kerosene 1
19 9.802-082.0 Cap, Fuel Tank, Plastic 1
20 8.716-323.0 Box, Junction, 5 Hole 1/2" 1
21 8.719-950.0 Holder, Wand2
22 9.802-695.0 Nut, 10/32" Keps 5
23 8.912-225.0 Switch Plate, Hot 1
24 9.802-453.0 Switch, Curvette
120V & 220V 1
25 8.718-735.0 Screw, 6/32" x 3/4", RH,
Slot, M/S Machine 2
26 9.802-762.0 Screw, 10/32" x 1-1/4",
RH, SC, Black 1
27 9.800-040.0 Label, Ground 1
28 9.802-519.0 Strain Relief, 1/2" Metal 3
29 90-2000 Nut, 1/4” ESNA, NC 4
30 95-07164828 Bracket, Brake Pad,
Black 1
31 9.803-111.0 Lever, Brake, Black 1
32 95-07164829 Linkage, Brake, Black 1
33 2-010061 Bushing, Mount Rubber 2
34 9.802-802.0 Washer, 1/4” Flat, SAE 12
35 9.804-608.0 Cap, Vinyl, Flat, Yellow 1

8.913-943.0 • LANDA HS • Rev. 4/13
OPERATOR’S MANUAL PRESSURE WASHER
20
89139430-1
To Pressure
Washer
To Fuel
Tank
To Fuel
Tank
23
44 19
2
38
20
16
21
22
45
14
17
18
5
6
6
7
34
35
47
4
48
11
9
8
42
15
5
4
10
40
36
32
32
31
28
29
30
33
41
3
24
25
39
343
13
41
1
46
37
37
26
TANK & BURNER ASSEMBLY
12