Landa MVC4-3000 User manual

96-61836
OPERATOR’S MANUAL
■MVC3-3000 ■ MVC4-3000 ■MVC4-3000E/S
■MVC4-3500E
MVC
For technical assistance or the dealer nearest you, consult our web page at
www.landa.com or call 800-LANDA-4-U (800-526-3248) or [phone]
PRESSURE WASHERS
®
L
I
S
T
E
D
®
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

CONTENTS
2
ModelNumber______________________________
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.
96-61836 • LANDA MVC • REV. 11/04
Introduction & Important Safety Information 4-5
ComponentIdentification 6
Assembly Instructions 7
Operating Instructions 8
Detergents & General CleaningTechniques 9
ShutDown Instructions 10
Storage 10
Maintenance 11-13
PreventativeMaintenance 14
Oil Change Record 14
Troubleshooting 15-17
ExplodedView, Left Side 18
ExplodedView, Right Side 19
Exploded View, Parts List 20-21
Control Panel, ExplodedView 22
Control Panel, Parts List 23
Downstream Injector Assembly & Parts List 24
Hose & Spray Gun Assembly & Parts List 25
Warranty
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 3
PRESSUREWASHER OPERATOR’S MANUAL
INTRODUCTION & IMPORTANT SAFETY INFORMATION
Thank you for purchasing a Landa Pressure Washer.
This manual covers the operation and maintenance of
the MVC3-30321, MVC4-30321, MVC4-30321E,
MVC4-30321E/S, MVC4-35321E, MVC3-30324,
MVC4-30324, MVC4-30324E, MVC4-30324E/S and
MVC4-35324Ewashers.Allinformation 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.
The MVC Series was designed for maximum
use of 4 hours per day, 5 days per week.
Owner/User Responsibility:
Theownerand/orusermust haveanunderstanding of
themanufacturer’soperatinginstructionsandwarnings
before using this Landa pressure washer.Warning in-
formationshould be emphasizedandunderstood.Ifthe
operator is not fluent in English, the manufacturer’s in-
structionsandwarnings shall be readtoanddiscussed
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.
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.
IMPORTANT SAFETY
INSTRUCTIONS
WARNING:When using this machine basic precau-
tions should always be followed,including the fol-
lowing: CAUTION:To reduce the risk of
injury, read operating instruc-
tions carefully before using.
1.Read the owner's manual
thoroughly.Failuretofollowin-
structions could cause mal-
function and result in death,
serious bodily injury and/or
property damage.
2. Know how to stop the machine and bleed pres-
sures quickly. Be thoroughly familiar with the con-
trols.
3. Stay alert - watch what you are doing.
4. Allinstallationsmustcomplywith local codes.Con-
tact your electrician, plumber, utility company or
the selling distributor for specific details.
WARNING: Flammable liquids
can create fumes which can ig-
nite causing property damage
or severe injury.
5. Risk of explosion - do not
spray flammableliquidsorop-
erateinanexplosivelocation.
Operate only where open
flame or torch is permitted.
WARNING: Do not place machine near flammable
objects when the engine is hot.
WARNING: Keep water spray
awayfromelectricalwiringor fa-
tal electric shock may result.
WARNING: Spray gun kicks
back. Hold with both hands.
6. Grip cleaning wand securely
with both hands before start-
ing the cleaner. Failure to do
thiscouldresultin injuryfrom
a whipping wand.
WARNING: Risk of fire. Do not
add fuel when the machine is
operating.
7. Allowenginetocool for2min-
utes before refueling. If any
fuelisspilled,makesurearea
is dry before testing spark
plug or starting the engine.
(Fire and/or explosion may
occur if this is not done.)
Gasolineenginesonmobileorportableequipment
shall be refueled:
a. Outdoors;
b. With the engine on the equipment stopped;
c. With no source of ignition within 10 feet of the
dispensing point;
d. With an allowance made for expansion of the
fuel should the equipment be exposed to a
higher ambient temperature.
Inanoverfillingsituation,additionalprecautionsare
necessary to ensure that the situation is handled
in a safe manner.
WARNING
KEEP WATER SPRAY
AWAY FROM
ELECTRICAL WIRING.
WARNING
RISK OF EXPLOSION:
USE CAUTION WHEN
REFUELING.
READ OPERATOR’S
MANUAL THOROUGHLY
PRIORTO USE.
CAUTION
WARNING
RISK OF EXPLOSION:
DO NOT SPRAY
FLAMMABLE LIQUIDS.
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
OPERATOR’S MANUAL PRESSURE WASHER
4
IMPORTANT SAFETY INFORMATION
WARNING
HIGH PRESSURE
STREAM CAN
PIERCE SKIN AND
TISSUES.
WARNING
USE PROTECTIVE
EYEWEAR WHEN
OPERATING.
WARNING
RISK OF
ASPHYXIATION.
USETHIS PRODUCT
ONLY IN A WELL
VENTILATED AREA.
WARNING
RISK OF FIRE OR
EXPLOSION: USE
VAPOR FUEL ONLY.
WARNING: Risk of injection or
severe injury to persons - Keep
clear of nozzle - Do not touch or
direct discharge stream at per-
sons.Thismachineisto be used
only by trained operators.
CAUTION: Hot discharge fluid.
Donottouchor direct discharge
stream at persons.
8. High pressure developed by these machines can
cause personal injury or equipment damage.Use
caution when operating. Do not direct discharge
stream at people, or severe injury and/ or death
may result. WARNING: High pressure can
cause paint chips or other par-
ticlestobecomeairborne andfly
at high speeds.
9. Eye safety devices and foot
protectionmustbewornwhen
using this equipment.
10. Never make adjustments on
machine while in operation.
WARNING:Use only in well ven-
tilated areas.Failure to observe
this warning could cause a loss
of consciousness or death.
11. Avoidinstallinginsmallareas
ornearexhaustfans.Exhaust
contains poisonous carbon
monoxidegas;exposure may
cause loss of consciousness
andmaylead to death.Italso
containschemicalsknown,incertainquantities,to
cause cancer, birth defects or other reproductive
harm.
12. Do not operate with the spray gun in the off posi-
tionforextensiveperiodsoftimeasthismaycause
damage to the pump.
13. The best insurance against an accident is precau-
tion and knowledge of the machine.
14. Landa will not be liable for any changes made to
our standard machines, or any components not
purchased from Landa.
15. Read engine safety instructions provided.
16. Never run pump dry or leave spray gun closed
longer than 5 minutes.
17. Inlet water must be from a cold, clean fresh city
water supply.
WARNING: Only use recom-
mended fuel. Using other fuels
may result in a serious explo-
sion causing personal injury,
property damage or loss of life.
18. Use No.1 or No.2 heating oil
(ASTM D306) only. NEVER
use gasoline in your fuel oil
tank. Gasoline is more com-
bustible than fuel oil and could result in a serious
explosion. NEVER use crankcase or waste oil in
your burner assembly.Fuel unit malfunction could
result from contamination.
19. Do not confuse gasoline and fuel oil tanks. Keep
proper fuel in proper tank.
20. Protect machine from freezing.
21. Becertainallquickcouplerfittingsaresecuredbe-
fore using pressure washer.
22. Do not allow acids, caustic or abrasive fluids to
pass through the pump.
23. 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.
24. Do not operate this product when fatigued or un-
derthe influence of alcohol ordrugs.Keep operat-
ing area clear of all persons.
25. Protecthighpressurehosefromvehicle trafficand
sharp objects.
26. Beforedisconnectinghighpressurehosefromwa-
teroutlet,turnburner off and pull the triggeronthe
spray gun allowing water to cool to below 100° F
beforestoppingmachine.Then open the spraygun
to relieve pressure. Failure to properly cool down
or maintain the heating coil may result in a steam
explosion.
27. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
28. This machine must be attended during operation.
BATTERY SAFETY
INFORMATION
CAUTION:Risk ofinjury.Disconnect battery ground
terminal before servicing.
Caution: Follow the maintenance instructions
specified.Thismachinehasbeendesignedforusewith
cleaning detergent supplied or recommended by the
manufacturer.Theuseofothercleaningdetergentsmay
affect the operation of the machine and void the war-
ranty.
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 5
PRESSUREWASHER OPERATOR’S MANUAL
IMPORTANT SAFETY INFORMATION
Thismachinerequiresa12Vbattery.Batteriesproduce
explosive gases, corrosive acid and levels of electrical
current high enough to cause burns. To lessen the
chance of personal injury or property damage, the in-
structions below must be followed exactly.
1. Always wear eye protection or shield your eyes
when working near any battery. Remove all metal
rings and jewelry.
2. Never expose a battery to open flames or electric
sparks.Also, do not smoke near a battery.It could
blow up.
3. Donotallowbatteryacidtocontacteyes,skin,fab-
rics or painted surfaces.Flush any contacted area
with water immediately and thoroughly.Get medi-
cal help if eyes are affected.
4. Donotchargethebattery,adjustpostconnections
or use booster cables without making sure the
battery compartment is properly ventilated.When
charging the battery, carefully follow the instruc-
tions on the charger.
5. Keep the battery filled to the proper level with dis-
tilled water.
6. Always keep vent caps tight and level with the top
of the battery.
7. Do not allow metal tools or metal parts to contact
thepositive(+)terminalandthenegative(-)termi-
nal or any metal connected to these terminals.
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
OPERATOR’S MANUAL PRESSURE WASHER
6
COMPONENT IDENTIFICATION
Water Supply Hose
(not included)
Variable Pressure
Control Wand
Trigger Control Wand
Handle
Nozzle
Quick
Coupler
Wand
Coupler
Brass Soap
Nozzle
Spray Gun
High Pressure
Hose
High Limit
Thermostat
Gasoline
Tank
Detergent
Injector
Detergent
Nipple
Quick
Coupler
Fuel Oil Tank
Pump — Delivers a specific gpm to the high pressure
nozzle which develops pressure.
Spray Gun — Controls the application of water and
detergentontocleaningsurfacewithtriggerdevice.In-
cludes safety latch.
Detergent Injector — Allows you to siphon and mix
detergents.
Wand — Must be connected to the spray gun.
High Pressure Hose — Connect one end to water
pumphighpressuredischarge nipple andtheotherend
to spray gun.
Rupture Disk — Secondary pressure release in the
unlikely event the unloader valve fails.
UnloaderValve —Safetydevicewhich,whenthespray
gun closes, prevents over pressurization.
Note:If trigger on spray gun is released for more
than 2 minutes,water will leak from the pump pro-
tector.Warm water will discharge from pump pro-
tector onto floor. This system prevents internal
pump damage.
Rupture
Disk
Pump
Unloader
Valve
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 7
PRESSURE WASHER OPERATOR’S MANUAL
ASSEMBLY INSTRUCTIONS
STEP 1: Attach a 5/8" garden hose
to inlet connector. Minimum flow
should be 5 gpm.
STEP 2: Attach high pressure hose
to discharge nipple using quick cou-
pler.Lockcouplersecurelyintoplace
bypullingbackcoupler collar and in-
sertingitontodischargenipple,then
pushingcollarforwardtolockinplace.
STEP 3: Attach wand to spray gun
using teflon tape on threads to pre-
vent leakage.Attachswivelconnec-
tor on discharge hose to spray gun
using teflon tape on threads.Attach
swivel connector on high pressure
hose to spray gun using teflon tape
on threads. Engage safety latch to
prevent from triggering gun.
STEP 4: Check oil level on sight
glassonsideofpump.Oil should be
visible one-half way up sight glass
(SAE 30W non-detergent). The oil
level can also be checked by using
the dipstick on the top of the pump.
STEP5:Fillgasolinetankandcheck
engineoil.Fill fuel tank. Do not con-
fuse gasoline and fuel oil (diesel)
tanks. Keep proper fuel in proper
tanks.
STEP 6: Install proper battery mak-
ing sure that the red cable is at-
tached to the positive terminal.Use
only a group 24 marine type deep
cell battery with a 90 amp hour rat-
ing (battery not included).This is for
electric start models only.
Caution: These machines are in-
tendedtobeprotectedfromoutside
environments.
Engine
Fuel
Burner
Fuel
Dipstick
Safety
Latch
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
OPERATOR’S MANUAL PRESSURE WASHER
8
OPERATION INSTRUCTIONS
STEP 1:Turnonwateratfaucetand
pull trigger on spray gun allowing
water to flow until all air has dis-
charged from system. Check for
water leaks;tighten as needed.
STEP 2: Pull wand coupler collar
back and insert desired pressure
nozzle into coupler then secure by
pushing coupler collar forward.
NOTE: Variable pressure control
wand handle must be turned clock-
wise to enable water to flow out of
the high pressure nozzle.
STEP 3: Read engine manual, turn
on gas valve and choke. Turn the
engineswitchtotheSTARTposition
and hold it there until the engine
starts. NOTE: Do not use the elec-
tric starter for more than five sec-
onds at a time.If the engine fails to
start,releasethe switchand waitten
secondsbefore operating thestarter
again. When the engine starts, al-
lowtheengineswitchtoreturntothe
ON position. If the engine is to be
started without the battery, turn
switch to startpositionandpullrope
to start.Turn off choke.
STEP 4: With spray nozzle pointed
awayfromyouoranyoneelse,press
trigger on spray gun to obtain pres-
surized cold water spray.
Selection of high or low pressure is accompanied by turning the handle.
Note: Highpressurenozzlemustbeinsertedatendofwand to obtain high
pressure.To apply soap read operator's manual.
Variable Pressure
Control Handle Trigger
Variable Pressure
Wand (VP)
High
Pressure
Nozzle
Brass Soap
Nozzle
STEP 5: For hot water, turn the
burner switch ON when a steady
stream of water flows out of the
spraygun.Burnerwilllightautomati-
cally.
NOTE: Do not start machine with
burner switch on.
Burner
Switch
Collar
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 9
PRESSUREWASHER OPERATOR’S MANUAL
WARNING: Some detergents
may be harmful if inhaled or in-
gested, causing severe nausea,
faintingorpoisoning.Theharm-
ful elements may cause prop-
erty damage or severe injury.
STEP 1: Use detergent designed
specifically for pressure washers.
Householddetergentscoulddam-
age the pump.Prepare detergent
solution as required by the manu-
facturer.Fill a container with pres-
sure washer detergent.Place the
filterendofdetergentsuctiontube
into the detergent container.
STEP 2: Apply safety latch to spray gun trigger. Se-
cureblackdetergent nozzle into quickcoupler. NOTE:
Detergent cannot be applied using theYellow nozzle.
STEP 3: With the motor run-
ning, pull trigger to operate
machine. Liquid detergent is
drawn into the machine and
mixedwithwater.Applydeter-
gent to work area. Do not al-
low detergent to dry on sur-
face.
IMPORTANT: You must flush the detergent injec-
tion system after each use by placing the suction
tube into a bucket of clean water,then run the pres-
sure washer in low pressure for 1-2 minutes.
THERMAL PUMP
PROTECTION
If you run your pressure washer for 3-5 minutes with-
out pressing the trigger on the spray gun, circulating
waterinthepumpcanreachhightemperatures.When
the water reaches this temperature, the pump protec-
tor engages and cools the pump by discharging the
warm water onto the ground.This thermal device pre-
vents internal damage to the pump.
CLEANINGTIPS
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
yourwork area to sectionsapproximately 6feetsquare
and always apply detergent from bottom to top).Allow
detergent to remain on surface 1-3 minutes. Do not
allowdetergenttodry on surface.If surfaceappearsto
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 sweeping
motion keeping the spray nozzle approximately 1 foot
fromcleaningsurface.Useoverlappingstrokesasyou
clean and rinse any surface.For best surface cleaning
action spray at a slight angle.
Recommendations:
• Before cleaning any surface, an inconspicuous
areashouldbecleanedtotestspraypattern and
distance for maximum cleaning results.
• If painted surfaces are peeling or chipping, use
extremecautionas pressurewashermayremove
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 wash-
ing.
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 machine and will dam-
age the surface being cleaned.
RINSING
• Itwilltakeafewsecondsforthedetergenttoclear.
Applysafetylatchtospraygun.Remove blacksoap
nozzle from the quick coupler. Select and install
the desired high pressure nozzle.NOTE: You can
also stop detergent from flowing by simply remov-
ing detergent siphon tube from bottle.
WARNING
DETERGENTS AND GENERAL OPERATINGTECHNIQUES
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
OPERATOR’S MANUAL PRESSURE WASHER
10
SHUTDOWN INSTRUCTIONS
STEP 1: Removedetergentsuction
tube from container and insert into
one(1)gallon offreshwater.Pulltrig-
ger on spray gun and siphon water
for one minute.
STEP 2: Turn burner switch off and
continue spraying, allowing the wa-
ter to cool below 100° F.
STEP 3:Turn engine off.
STEP 4: Turn off water supply. STEP 6: Open 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 pump in this machine is susceptible
to permanent damage if frozen. FREEZE DAMAGE
IS NOT COVERED BYWARRANTY.
1. Stop the pressure washer, squeeze spray gun trig-
ger to release pressure.
2. Detachwatersupplyhoseandhighpressurehose.
3. Turn on the machine for a few seconds, until re-
maining water exits.Turn engine off immediately.
4. Drain the gas and oil from the engine.
5. Donotallowhighpressurehosetobecomekinked.
6. Storethemachineandaccessoriesinaroom which
does not reach freezing temperatures.
CAUTION:Failure to follow the above directions will
result in damage to your pressure washer.
Whenthepressurewasherisnotbeingoperatedorisbeing
stored for more than one month, follow these instructions:
1. Replenish engine oil to upper level.
2. Drain gasoline from fuel tank, fuel line, fuel valve
and carburetor.
3. Pour about one teaspoon of engine oil through the
spark plug hole, pull the starter grip several times
andreplacethe plug.Thenpullthestartergripslowly
until you feel increased pressure which indicates
the piston is on its compression stroke and leave it
in that position.This closes both the intake and ex-
haust valves to prevent rusting of cylinder.
4. Cover the pressure washer and store in a clean, dry
placethatiswell ventilatedaway fromopenflame or
sparks. NOTE: The use of a fuel additive, such as
STA-BIL®, or an equivalent, will minimize the formu-
lation of fuel deposits during shortage. Such addi-
tivesmay be addedtothegasolineinthefuel tank of
theengine,ortothegasolineeinastoragecontainer.
After Extended Storage
CAUTION:Prior to restarting,thaw out any possible
ice from pressure washer hoses, spray
gun or wand.
Engine Maintenance
Duringthewintermonths,rareatmoshericconditionsmay
develop which will cause an icing condition in the carbu-
retor. If this develops, the engine may run rough, lose
power and may stall. This temporary condition can be
overcome by deflecting some of the hot air from the en-
gine over the carburetor area. NOTE: Refer to the en-
ginemanufacturer'smanualforserviceandmaintenance
of the engine.
STORAGE
Burner
Switch Key
Switch
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 11
PRESSUREWASHER OPERATOR’S MANUAL
MAINTENANCE
PREVENTATIVE MAINTENANCE
1. Checktoseethatthewaterpumpisproperly lubri-
cated.
2. Follow winterizing procedures to prevent freeze
damage to the pump and coils.
3. Always neutralize and flush detergent from sys-
tem after use.
4. Ifwaterisknown to be high in mineralcontent,use
a water softener in your water system or de-scale
as needed.
5. Donotallowacidic, caustic or abrasivefluidstobe
pumped through system.
6. AlwaysusehighgradequalityLanda cleaningprod-
ucts.
7. Never run pump dry for extended periods of time.
8. Use clean fuel-kerosene, No. 1 fuel oil or diesel.
Replace fuel filter every 100 hours of operation.
Avoid water contaminated fuel as it will seize up
the fuel pump.
9. If machine is operated with smoking or eye burn-
ing exhaust, coils will soot up, not letting water
reachmaximumoperatingtemperature.(Seesec-
tion on Air Adjustments.)
10. Neverallowwater to be sprayedonornearengine
or burner assembly or any electrical component.
11. Periodically delime coils as per instructions.
12. Check to see that engine is properly lubricated.
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.
Theflowofcombustionandventilatingair to the burner
must not be blocked or obstructed in any manner.
MAINTENANCE AND SERVICE
Unloader Valves:
Unloader valves are preset and tested at the factory
beforeshipping.Occasionaladjustmentof theunloader
may be necessary to maintain correct pressure. Call
your local dealer for assistance.
Winterizing Procedure:
Damage due to freezing is not covered by warranty.
Adheretothefollowingcoldweatherprocedureswhen-
ever the washer must be stored or operated outdoors
under freezing conditions.
During winter months, when temperatures drop below
32°F, protecting your machine against freezing is nec-
essary. Store the machine in a heated room. If this is
not possible then mix a 50/50 solution of anti-freeze/
water into a 5 gallon bucket. Place a short section of
garden hose into the bucket and connect it to the ma-
chine. Elevate the bucket and turn the pump on to si-
phon the anti-freeze through the machine. If com-
pressed air is available, an air fitting can be screwed
into the inlet connector and, by injecting compressed
air, all water will be blown out of the system.
High Limit HotWaterThermostat:
For safety, each machine is equipped with a high limit
control switch.In the event that the temperature of the
watershouldexceedits operatingtemperature,thehigh
limitcontrolwillturn the burneroffuntilthewater cools.
Pumps:
Use only SAE 30W non-detergent oil. Change oil after
the first 50 hours of use.Thereafter, change the oil ev-
ery three months or at 500 hour intervals. Oil level
should be checked by using the dipstick found on top
ofthepumporthe red dot visiblethroughtheoilgauge
window.Oil should be maintained at that level.
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 pre-
ventionforliming conditions istousehighqualityclean-
ing detergents.In areas where alkaline water is an ex-
treme problem, periodic use of Landa Deliming Pow-
der (part #9-028008) will remove lime and other de-
posits before coil becomes plugged.(See Deliming In-
structions for use of Landa Deliming Powder.)
Deliming Coils:
Periodic flushing of coils is recommended.
1. Fill a container or optional float tank with 4 gallons
of water, then add 1 lb. of deliming powder. Mix
thoroughly.
2. Remove wand assembly from spray gun and put
spray gun into container.Secure the trigger on the
spray gun into the open position.
3. Attach a short section (3-5 ft.) of garden hose to
machine to siphon solution from an elevated con-
tainer. Turn pump switch on, allowing solution to
be pumped through coils back into the container.
Solution should be allowed to circulate 2-4 hours.
4. After circulating solution flush entire system with
freshwater.Reinstallwandassemblytospray gun.
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
OPERATOR’S MANUAL PRESSURE WASHER
12
MAINTENANCE & SERVICE
Rupture Disk:
If pressure from pump or thermal expansion should
exceed safe limits, the rupture disk will burst allowing
highpressuretobe dischargedthroughhosetoground.
When disk ruptures it will need to be replaced.
Fuel:
Use clean fuel oil that is not contaminated with water
anddebris.Replacefuelfilteranddrain tank every100
hours of operation.
Use No. 1 or No. 2 Heating Oil (ASTM D306) only.
NEVER use gasoline in your burner tank. Gasoline is
morecombustiblethan fuel oil and a seriousexplosion
couldresult.NEVER usecrankcaseorwasteoilinyour
burner.Fuel unit malfunction couldresultfromcontami-
nation.
Fuel Control System:
These machines utilize a fuel solenoid valve located
on the fuel pump to control the flow of fuel to the com-
bustionchamber.This solenoidvalve,which is normally
closed,isactivatedbya flowswitchwhenwaterisflow-
ing 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 sole-
noid.The solenoid then closes, shutting off the supply
offueltothe combustionchamber.Controlling the flow
of fuel in this way allows for an instantaneous burn or
noburnsituation, therebyeliminating highandlowwater
temperatures, and combustion smoke normally asso-
ciated with machines incorporating a spray gun.
CAUTION: Periodic inspection is recommended to in-
surethatthefuelsolenoidvalvefunctionsproperly.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.
Electrode Setting:
(See illustration below.)
Burner Nozzle:
Keep the tip free of surface deposits by wiping it with a
clean,solvent-saturatedcloth,beingcarefulnottoplug
orenlargethenozzle.Formaximumefficiency, replace
the nozzle each season.
Air Adjustment:
Machines are preset and performance tested at the
factory - elevation 100 feet. A one-time initial correc-
tion for your location will pay off in economy, perfor-
mance and extended service life.If a smoking or eye-
burning exhaust is being emitted from the stack, two
things should be checked. First, check the fuel to be
certainthatkeroseneorNo.1homeheatingfuelisbeing
used.Next, check the air adjustment on the burner.
Initial Air Adjustments:
Allow sufficient air to obtain a clean burning flame by
loosening the lock screws and moving the air shutter
and if necessary the bulk air band.
Reducetheairsupply untiltheflametipsappear slightly
smoky then increase the air just enough to cause the
flame tips to appear absolutely clean.
Fuel Pressure Adjustment:
To adjust fuelpressure,turntheadjustingscrew clock-
wisetoincrease, counterclockwisetodecrease.Donot
exceed 200 psi.NOTE:When changing the fuel pump,
a bypass plug must be installed in the return port or
the fuel pump will not prime.
Removal of Soot and Heating Coil:
In the heating process, fuel residue in the form of soot
deposits may develop on the heating coil 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 following the coil re-
moval steps.
Periodically check wiring connections. If necessary to
adjust electrodes, use diagram.
5/32" Electrodes
Nozzle Adapter
1/4"
1/2"
5/32" 2-7/8"
5/32" Gap
Top View Side View
Lock
Screws
Air Shutter
Pressure
Gauge Port
Return
Line
Fuel Pump
In Line Filter
Pressure
Adjustment
Screw
Bulk Air
Band
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 13
PRESSUREWASHER OPERATOR’S MANUAL
MAINTENANCE & SERVICE
1. Remove the tank head assembly by unscrewing
the threeTek screws and lifting the tank head off.
2. Remove the two pipe nipples and associated fit-
tings.
3. Lift the coil out of the outer wrap.
CAUTION:The coil weighs about 80 lbs.Use proper
lifting techniques.
4. Clean, repair and replace the coil by reversing the
above steps.
Coil Reinstallation:
Reinstall by reversing the above steps 4 through 1.
Final Note:
The 12VDC burner systems can draw as much as 18
amps!Forsuchmotors to run properly,thebatteryand
engine charging system must be kept in good condi-
tion,andtheengine mustrunfastenoughtoadequately
charge the battery.Do not throttle down the engine for
any length of time.
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
OPERATOR’S MANUAL PRESSURE WASHER
14
PREVENTATIVE MAINTENANCE
Thispressurewasherwasproducedwiththebestavailable materialsandqualitycraftsmanship.However,youas
the owner have certain responsibilities for the correct care of the equipment. Attention to regular preventative
maintenanceprocedureswill assist in preservingtheperformanceofyourequipment.Contact your Landa 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
Engine Oil Inspect Daily
Change Every 25 hours
Filter Every 50 hours
Air Cleaner Inspect Every 50 hours or monthly
Clean Every 3 months
Battery Level Check monthly
Engine Fuel Filter 500 hours or 6 months
Spark Plug Maintenance 500 hours or 6 months
Clean Fuel Tank(s) Annually
Replace Fuel Lines Annually
Pump Oil Inspect Oil level daily
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
Replace Burner Nozzle Annually
Descale Coil Annually (More often if required)
Replace High Pressure Nozzle Every 6 months
Replace Quick Couplers Annually
Clean Water Screen/Filter Weekly
Replace HP Hose Annually (If there are any signs of wear)
OIL CHANGE RECORD
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 15
PRESSURE WASHER Troubleshooting Guide
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE Water supply is insufficient Use larger supply hose; clean filter at water
inlet.
Spray nozzle is old, worn or incorrect Match the nozzle number to the machine
and/or replace with new nozzle.
Belt slips Tighten or replace belt; use correct belt.
Plumbing or hose is leaking Check plumbing system for leaks. Retape
leaks with teflon tape.
Unloader is faulty or misadjusted Adjust unloader for proper pressure. Install
repair kit when necessary or replace.
Packing in pump is worn Install new packing kit.
Discharge valve in pump or inlet is
fouled or dirty Check inlet and discharge valve.
Discharge valve or inlet is worn Replace with valve kit.
Spray nozzle has obstruction Remove obstruction.
Steam pressure control valve is
leaking (where applicable) Rebuild or replace as necessary.
Engine RPM is slow Set engine speed at proper specifications. See
serial plate.
BURNER WILL NOT
LIGHT There is little or no fuel Fill tank with fuel.
Improper fuel or water in fuel Drain fuel tank and fill with proper fuel.
Fuel line is clogged Clean or replace fuel line.
Fuel filter is plugged Replace fuel filter as needed.
Burner air bands are misadjusted Readjust air bands for clean burn.
Little or no fuel pressure from fuel
pump Increase fuel pressure to specification and/or replace fuel pump.
Burner transformer is faulty Test transformer for proper arc between
contacts. Replace as needed.
Electrical wiring is disconnected or
has short in it All wire contacts should be clean and tight with no breaks in wire.
Flex coupling is slipping on fuel pump
shaft or burner motor shaft Replace if needed.
ON-OFF switch is defective Check for electrical current reaching burner
assembly with burner switch on. Replace switch
if needed.
Heavy sooting on coil and burner can
cause interruption of air flow and
shorting of electrodes
Clean as required.
Electrode setting is improper Check and reset according to diagram in
manual.
30 amp circuit breaker tripped Push in reset button.
Bridge rectifier defective Test and replace.
12V DC relay defective Test and replace.
Fuel is 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 control.
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
PRESSURE WASHER Troubleshooting Guide
16
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
BURNER WILL NOT
LIGHT (continued from
previous page)
Burner nozzle is clogged Clean as required.
Thermostat has malfunctioned Test and replace if needed.
Fuel solenoid has malfunctioned Test and replace if needed.
MACHINE SMOKES Fuel is improper or water is in fuel Drain tank and replace contaminated fuel.
Air adjustment is improper Readjust air bands on burner assembly.
Fuel pressure is low Adjust fuel pump pressure to specifications.
Burner nozzle is plugged or dirty Replace nozzle. Check parts breakdown for
nozzle size.
Burner nozzle spray pattern is faulty Replace nozzle. Check parts breakdown for
nozzle size.
Coil and burner assembly have
heavy accumulation of soot Remove coils and burner assembly, clean thoroughly. Call local dealer.
Electrode setting is misaligned Realign electrodes to specifications.
Smoke stack has obstruction Check for blockage or other foreign objects.
Engine RPM is low Increase RPM to correct specs. See serial plate.
LOW WATER
TEMPERATURE Fuel is improper or has water in it Replace with clean and proper fuel.
Fuel pressure is low Increase fuel pressure.
Fuel pump is weak Check fuel pump pressure. Replace pump if
needed.
Fuel filter is partially clogged Replace as needed.
Soot buildup on coils is not allowing
heat transfer Clean coils.
Burner nozzle is improper Call your local dealer for proper nozzle.
WATER
TEMPERATURE
TOO HOT
Incoming water to machine is warm
or hot Lower incoming water temperature.
Fuel pump pressure is too high Call your local dealer for proper fuel pressure.
Fuel pump is defective Replace fuel pump.
Fuel nozzle is incorrect size See parts breakdown or serial plate for proper
size.
Water supplied is insufficient Check water GPM to machine.
Water flow is restricted Check nozzle for obstruction and proper size.
Check serial plate for correct size.
PRESENCE OF WATER
IN OIL Oil seal is worn Check and replace if necessary.
Air humidity is high Check and change oil twice as often.
Packing is worn or bad Check and replace if necessary.
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 17
PRESSURE WASHER Troubleshooting Guide
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
DETERGENT NOT
DRAWING Air is leaking Tighten all clamps. Check detergent lines for holes.
Injector head may be blocked,
dirty or damaged Clean and make sure ball and spring behind detergent hose barb or injector body are working properly.
Filter screen on detergent
suction hose is plugged Clean or replace.
Detergent has high viscosity Dilute detergent to specifications.
Not using soap nozzle Insert soap nozzle into wand coupler.
Detergent level is low Add detergent if needed.
PUMP RUNNING
NORMALLY BUT
PRESSURE LOW ON
INSTALLATION
Pump is sucking air Check water supply and possibility of air seepage.
Valves are sticking Check and clean or replace if necessary.
Unloader valve seat is faulty Check and replace if necessary.
Nozzle sized incorrectly Check and replace if necessary (see serial plate for
proper size).
Packing piston is worn Check and replace if necessary.
FLUCTUATING
PRESSURE Valves are worn Check and replace if necessary.
Valve has a blockage Check and replace if necessary.
Pump is sucking air Check water supply and air seepage at joint in suction line.
Packing piston is worn Check and replace if necessary.
PUMP NOISY Air is in suction line Check water supply and connections on suction line.
Inlet or discharge valve springs
are weak or broken Check and replace if necessary.
Excessive matter is in valves Check and replace if necessary.
Bearings are worn Check and replace if necessary.
WATER DRIPPING
FROM UNDER PUMP Piston packing is worn Check and replace if necessary.
O-Ring plunger retainer is worn Check and replace if necessary.
Piston is cracked Check and replace if necessary.
Pump protector is worn Lower water supply pressure. Do not run the spray gun
closed longer than 5 minutes.
OIL DRIPPING Oil seal is worn Check and replace if necessary.
EXCESSIVE
VIBRATION IN
DELIVERY LINE
Valves are functioning
irregularly Check and replace if necessary.
BURNER MOTOR
WILL NOT RUN Fuel pump has seized Replace fuel pump.
Burner fan loose or misaligned Position correctly and tighten set screw.
Control switch is defective Replace switch.
There is a loose wire Check and replace or tighten wiring.
Burner motor is defective Replace motor.
RELIEF VALVE
LEAKS WATER Relief valve is defective Replace or repair relief valve.
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
OPERATOR’S MANUAL PRESSURE WASHER
18
EXPLODED VIEW - LEFT SIDE
21
2
30
47
23
46
20
19
18
18
19
54
30
22
65
96
6028
71 24
72
91
63
31
70
29
29
57
26
25
49
31
27
90
64
▲▲
▲▲
▲
94
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04 19
PRESSUREWASHER OPERATOR’S MANUAL
EXPLODED VIEW - RIGHT SIDE
2
6
81
14
1
59
85
48
13
12
11
62
85
101
76
60
4
5254
37
39
73
37
36
78
50
38
15
92
69
18
19
20
42 43
45
89 31
88
31
19
18
20
50
16
20
46
81
41
54
53
66
67
68
68
61
34
35
58
87
56 79 31
32 40
31
77
31
51
10
9
7
44
51
(Reversed
View)
95
98
99
100
3
For
Detail See
Control
Box Illus.
103
102
14
85
97
74
17
14
106
108
107
55
33
33
82
83 84
80
93 86
86
86
80
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com

96-61836 • LANDA MVC • REV. 11/04
OPERATOR’S MANUAL PRESSURE WASHER
20
EXPLODED VIEW PARTS LIST
ITEM PART NO. DESCRIPTION QTY
1 95-07290029 Tank Head Assembly,
16" Dia. x 8" Stack 1
2 10-02025A Label, Hot/Caliente w/Arrows
Warning 3
3 90-50045 Clip, Retaining, U-Type 4
4 95-07290053 Retainer, Burner Insulation 1
5 95-07121218 Coil, Dura, 14.5" Dia., Sch. 80 1
6 95-07290013 Wrap, Outer Coil 1
7 6-05134 Cable Tie, 48" 2
8 95-07101226 Block, Discharge, 1/2" x 1/2",
Brass 1
9 2-1019 Elbow, 3/8" Female 1
10 2-2007 Nipple, 3/8" x 3/8" NPT ST Male1
11 2-3409 Disk, Rupture Assy, 7000 PSI 1
12 2-00575 Elbow, 3/8" x 3/4", 45° 1
13 4-02110000 Hose, 1/2" Push-On 2.5 ft.
14 90-19710 Screw, 1/4" x 3/4" HH NC 11
15 7-01482 Insulation, Tank Bottom,
1" Blanket 1
16 95-073901000 Assy Frame, MVC 1
17 10-03013 Label, MVC, Coil Logo 1
18 4-0307 Wheel & Tire, 6" Steel Rim 4
19 90-20041 Collar, 5/8" Bore Shaft 4
20 90-4005 Washer, 5/8" Flat, SAE 4
21 5-01021 Engine, Honda, GX270, 9 HP,
18 AMP (3-30321, 3-30324) 1
5-01072 Engine, Honda, GX340, 11HP
E/S, 18 AMP (4-30321E,
4-30324E) 1
5-01070 Engine, Honda, GX340 11 HP,
18 AMP (4-30321, 4-30324) 1
5-010720 Engine, Honda, GX390, 13 HP
E/S, 18 Amp (4-30321E/S,
4-35321E, 4-30324E/S,
4-35324E) 1
22 5-1760 Pump, Landa, LS3040G
(3-30324) 1
5-1761 Pump, Landa, LS3540G
(4-30324, 4-30324E, 4-35324E
4-30324E/S) 1
5-23125 Pump, General, TX1506GB
(3-30321) 1
5-23122 Pump, General, TX-1509G8
(4-30321, 4-30321E,
4-30324E/S) 1
5-23161 Pump, General, EZ-4035G
(4-35321E) 1
23 4-02047714 Hose, 3/8" x 14", 2 Wire,
Pressure Loop 1
24 2-30082 Pump Protector, 1/2" PTP 1
ITEM PART NO. DESCRIPTION QTY
25 6-021730 Switch, Flow, MV60 1
6-021740 Switch, Reed Replacement,
MV60 1
26 2-0053 Elbow, 1/2" JIC, 3/8", 90° 1
27 5-3025 Unloader, PA 8 GPM @3650 PSI,
VB75K47L (3-30321, 4-30321
4-30321E, 4-30321E/S,
4-35321E) 1
5-3029 Unloader, PA *GPM@3650 PSI
VB75LM (3-30324, 4-30324,
4-30324E, 4-35324E,
4-30324E/S) 1
28 2-1024 Elbow, 1/2" Street, Brass 1
29 2-10942 Swivel, 1/2" MP x 3/4" GHF
w/Strainer 1
30 2-1088 Hose Barb, 1/4" Barb x 1/8" ML
Pipe, 90° 2
31 2-9040 Clamp, Hose, UNI .46 - .54 8
32 4-02100000 Hose, 1/4", Push-On, Fuel 28"
33 2-0115 Box, Battery, M-100
(Electric Start Only) 1
2-011500 ▲Plate, Battery Box, Large,
PolyPro (Electric Start Only) 1
34 2-01154 Tank, Fuel 1
35 2-01167 Cap, Fuel Tank, Plastic H60-AV 1
36 2-01053 Mount, Rubber Vibration, 40 Duro
(Blue Dot) 2
37 2-01052 Mount, Rubber Vibration,
30 Duro 2
38 95-07290008 Tab, Outer Wrap 4
39 2-0103 Grommet, Rubber,
Nozzle Holder 4
40 2-99031 Filter, Diesel Fuel, Disposable 1
41 7-00031 Beckett Burner 1
42 90-2025 Nut, 5/16" Wing (Electric Start) 4
43 90-20040 Nut, 3/8" Flange, Whiz Loc 4
44 2-1089 Hose Barb, 1/4" Barb x
1/4" Pipe, 90° 1
45 2-1085 Hose Barb, 1/4" Barb x 1/4" ML
Pipe 1
46 95-07390001 Axle, 27.5" 2
47 10-02029 Label, Danger Cool Engine 1
48 2-00602 Elbow, 1/2" JIC x 1/2" Fem, 90° 1
49 2-3100544 Valve, E-Z Start,
3/8" MPT x 1/8" FPT 1
50 90-2020 Nut, Cage, 3/8" x 12 Gauge 12
ToOrderPartsCall1-888-702-5326-https://monsterfloorequipmentparts.com