Mighty Clean MC1800 User manual

Electric High-Pressure Washer - Operator’s Manual
Before operating this product, please read this manual thoroughly and retain it for
future reference.
MC1800
English 1
1-866-902-9690
www.MightyCleanUSA.com

Do not return product to place of purchase. If you have any
questions, call our toll- free hotline.
1-866-902-9690
www.MightyCleanUSA.com

Before each use, please read all of the safety precautions.
Please pay particular attention to all sections with the following symbols.
Could cause injury or death if not followed.
Could damage machine if not followed.
When using this product, basic precautions should always be followed, including:
1 Read all instructions before using the product.
2 To reduce the risk of injury, do not operate the product near children.
3 Learn how to stop this product and release pressure quickly. Be thoroughly familiar with the controls.
4 Stay alert - watch what you are doing.
5 Do not operate this product when fatigued or under the influence of alcohol or drugs.
6 Keep operating area clear of all people and pets.
7 Do not stand on unstable surfaces. Do not overreach or stand on unstable support. Keep good
footing and balance at all times.
8 Follow the maintenance instructions specified in the manual.
9 This product is provided with a Ground Fault Circuit Interrupter (GFCI) built into the
power cord. If replacement of the plug or cord is needed, use only manufacturer replacement parts.
10 This product or its power cord contains lead, a chemical known to cause cancer, birth defects or
other reproductive harm. Wash hands after handling.
English 1
WARNING
WARNING
CAUTION
Important Safety Instructions..................................................................................................1
Safety Features…………………..……...................................................................................4
Parts List and Diagram...........................................................................................................5
Assembly and Operation Instructions.....................................................................................6
Machine Assembly.................................................................................................6
Operation Instruction..............................................................................................8
Cleaning Detergents Dispenser............................................................................10
Shut Down and Storage........................................................................................................13
Cleaning and Maintenance...................................................................................................14
Troubleshooting.....................................................................................................................15
Technical Data......................................................................................................................19
Warranty................................................................................................................................20
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS

Risk of Injury
Injection Hazard
• Product can cause serious injury if the spray penetrates the skin.
• Do not point the gun at anyone or any part of the body. In case of penetration, seek medical aid
immediately.
Risk of Injury
Do not direct discharge stream at self or other persons.
• High-pressure jet can be dangerous if misused.
• The jet must not be directed at persons, animals, electrical devices, or the product itself.
Risk of Explosion
• Do not spray flammable liquids.
• Do not use acids and solvents in this product.
• These products can cause physical injuries to the operator and irreversible damage to the pressure
washer.
Risk of Electric Shock
• High-pressure jet can be dangerous if misused.
• The jet must not be directed at persons, animals, electrical devices, or the product itself.
Gun Kicks Back
• Hold with both hands.
• The trigger handle safety lock prevents the trigger from being engaged accidentally.
• This safety feature DOES NOT lock trigger in the On position.
1. Never operate the product without all components properly connected to the product (handle, gun/
wand assembly, nozzle, etc.).
2. Never operate pressure washer with broken or missing parts. Check product regularly and repair
or replace worn or damaged parts immediately.
3. Never put hand or fingers over the nozzle or spray tip while operating the product.
4. Never spray flammable liquids or use pressure washer in areas containing combustible dust, liquids
or vapors. An electric spark could cause an explosion.
5. Never leave the wand unattended while the product is running or switched on.
6. Never disconnect the high pressure discharge hose from the product while the system is
pressurized. To release pressure from the product, turn power and water supply off, then depress
trigger 2-3 times.
7. Never cover the pressure washer during operation to allow free air cooling.
NOTE: Failure to follow the rules listed below can void the warranty on this product.
WARNING
WARNING
WARNING
WARNING
CAUTION
IMPORTANT SAFETY INSTRUCTIONS
GENERAL SAFETY AND OPERATION RULES
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Connect directly to outlet. Do not use product with extension cord. The use of an extension
cord could override the GFCI built into the plug of the power supply cord resulting in the risk of
electrical shock.
8. Always wear safety glasses or goggles when operating or performing maintenance.
9. Always move switch on product to “Off” position before connecting or disconnecting cord to electrical
outlets.
10.Always turn water supply on before turning pressure washer on unless draining for storage.
Running pump dry causes serious damage.
11.Always hold trigger handle and wand firmly when starting and operating the product.
12.Always follow detergent manufacturer’s label recommendations for proper use of detergents. Always
protect eyes, skin and respiratory system from detergent if used.
13.Always lock the trigger of the trigger handle in the safety position when not in use.
14.Do not use pressure that exceeds the operating pressure of any of the parts (hoses, fittings, etc.) in
the pressurized system. Never use with any other manufacturer’s accessories or components.
15.Do not spray electrical apparatus and wiring or the product itself.
16.Do not operate the pressure washer with the inlet water filter removed. Keep filter clear of debris and
sediment.
17.Discharge residual pressure by depressing the trigger until no more water comes out of the nozzle.
18.Keep clear of nozzle. Never direct high-pressure spray at any person, animal or self.
19.To minimize the amount of water getting into the pressure washer, the product should be placed as
far as possible from the cleaning site during operation.
This pressure washer is provided with a Ground Fault Circuit Interrupter (GFCI) built into the power
supply cord. This device provides additional protection from the risk of electrical shock. Should
replacement of the plug or cord become necessary, use only manufacturer replacement parts that
include GFCI protection. All services must be done by an Authorized Service Technician. Unauthorized
service will void warranty. See Page 4 for testing procedure.
In a double-insulation product, two systems of insulation are provided instead of grounding.
No grounding is provided on a double-insulated product, nor should a means for grounding
be added to the product.
Servicing a double-insulated product requires extreme care and knowledge of the system,
and should be done only by Authorized Service Technician. Replacement parts of a
double-insulated product must be manufacturer replacement parts. A double-insulated
product is marked with the words “DOUBLE-INSULATION” or “DOUBLE-INSULATED”.
The symbol “ ” may also be marked on the product.
WARNING
IMPORTANT SAFETY INSTRUCTIONS
GROUND FAULT CIRCUIT INTERRUPTER PROTECTION
DOUBLE-INSULATION INSTRUCTION
SAVE THESE INSTRUCTIONS
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The pressure washer is also equipped with a main power On/Off switch located on the product.
It should always be moved to the “Off” position when the pressure washer is not being used to
prevent possible injury or damage.
This product has been designed for use with detergents that are specically approved for
pressure washer use. The use of other cleaning detergents may affect the operation of the
product and void the warranty.
Extension cords are not recommended unless these are plugged into a GFCI found in circuit
boxes or protected receptacles.
The pressure washer is equipped with a total stop system (TSS) that will sense when the trigger on
the handle is depressed or released. It will open the power circuit to the motor, and cause the pressure
washer motor to stop. The motor will start again when the trigger is depressed.
If possible, do not use extension cords with this product. However, if you must use one, observe all of
the warnings and instructions listed below:
Ground Fault Circuit Interrupter Protection
This device provides additional protection from the risk of
electrical shock. Plug the Ground Fault Circuit Interrupter
(GFCI) into a power outlet. Indicator should turn red. TEST
BEFORE EACH USE. Press the “TEST” button. Red indicator
should disappear. Press “RESET” button again for use. Do
not use if above test fails.
Use A Sufcient Gauge:
Maximum cord length: 50’ (15.2 m). Only use 12 or 14 AWG rated extension cords.
• Use only extension cords that are intended for outdoor use. These extension cords are identified by a
marking that reads “Acceptable for use with outdoor appliances; store indoors while not in use.”
• Use only extension cords having an electrical rating not less than the rating of the product.
• Do not use damaged extension cords. Examine extension cord before using and replace if damaged.
Do not abuse extension cord and do not yank on any cord to disconnect.
• Keep cord away from heat and sharp edges.
• Always disconnect the extension cord from the receptacle before disconnecting the product from the
extension cord.
• To reduce the risk of electric shock, keep all connections dry and off the ground. Do not touch plug
with wet hands.
WARNING
CAUTION
WARNING
SAFETY FEATURES
TOTAL STOP SYSTEM
EXTENSION CORDS
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PARTS LIST AND DIAGRAMS
E
F
G
H1
H2
J
I
A
B
C
D
Item No. Quantity Part Name
A 1 Ground Fault Circuit Interrupter (GFCI)
B 1 High-pressure Hose
C 2 Hand Crank
D 1 Detergent Tank
E 1 Quick-connect Wand
F 1 Trigger Handle
G 3 Spray Tips
H1 1 Quick-connect Coupling
H2 1 Inlet Adaptor
*I 1 Water Filter Screen
J 1 Tip Cleaning Needle
* Water filter comes pre-attached on the water inlet, located on the front of the pressure
washer.
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Surface Preparation
Before starting any cleaning task, it is important to inspect the area for objects that could create a
hazard. Remove any objects from the work area that could be tripped over, such as toys or outdoor
furniture. Ensure that all doors and windows are closed tightly.
Water Supply (Cold Water Only)
Only draw cold water through the washer. For use with cold water supply only. Water hose must be at
least a 1/2” (13 mm) in diameter. Flow rate of water supply must not fall below 2 GPM (gallons per min-
ute) [9.1 LPM (liters per minute)]. Flow rate can be determined by running the water for one minute into
an empty 5-gallon (19 L) container. Measure the volume of water in bucket after one minute. The water
supply temperature must not exceed 104°F (40°C).
ASSEMBLY AND OPERATION INSTRUCTIONS
• Never use the pressure washer to draw in water contaminated with solvents (e.g. paint thinners,
gasoline, oil, etc.).
• Dirt in the water inlet will damage the pressure washer. To avoid this risk, we recommend checking.
• Always prevent debris from being drawn into the washer by using a clean water source and an ad-
ditional
accessory water filter if required.
• To prolong the life of the washer, rest the washer for minutes after every 30 minutes of use.
CAUTION
MACHINE ASSEMBLY
Attach hand cranks onto the hose reel
and cord reel on both sides. Insert in
holes and snap into place. No tools
required.
Raise handle to upright position and set the
position by cam - lock.
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ASSEMBLY AND OPERATION INSTRUCTIONS
Recommendation for
spray tip usage:
Yellow
15o
To clean larger
areas (e.g. drive
way)
White
40o
For delicate cleaning
and detailing
(e.g. vehicles)
Black
Low-Pressure
To apply detergent
Attach high-pressure hose from hose reel to the gun wand trigger handle, hand tighten until two parts
are locked.
Attach desired color coded spray tip to quick - connect wand by pushing to ensure it is clicked in
securely. Insert wand into the trigger handle, hand tighten until two parts are locked securely.
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ASSEMBLY AND OPERATION INSTRUCTIONS
Attach garden hose quick-connect coupling to
garden hose, hand tighten until two parts are
locked. Connect to inlet adaptor and ensure it
is clicked in securely.
Remove and discard the cap on the
washer’s water inlet and check the water
filter pre-attached inside the water inlet.
Attach the inlet adaptor of garden hose quick
– connect coupling on the water inlet, hand
tighten until two parts are locked.
Attach garden hose to cold water source and turn
water on full. The water temperature must not
exceed 104o F (40oC) and the supply pressure
must be between 40 to 80 PSI.
The pressure washer must only be used with clean water. Use of unltered water or corrosive
chemicals will damage the pressure washer.
This pressure washer is not intended to pump hot water. Never connect it to a hot water supply
as it could cause injury and will signicantly reduce the life of the pump.
CAUTION
Risk of injury, do not direct discharge stream at self or other persons.
Before cleaning any surface, an inconspicuous area should be cleaned to test spray pattern and
distance for maximum cleaning results.
WARNING
WARNING
OPERATION INSTRUCTIONS
8 English

ASSEMBLY AND OPERATION INSTRUCTIONS
Completely unwind power cord by pulling
and plug the Ground Fault Circuit Interrupter
(GFCI) into a power outlet. Indicator should
turn red. TEST BEFORE EACH USE. Press
the “TEST” button. Red indicator should
disappear. Press “RESET” button again for
use. Do not use if above test fails.
Turn on the pressure washer by pressing the
switch with mark “ “. The washer will run
for a few seconds to build up pressure, then
will stop on the function of total stop system
(TSS).
Make sure the On/Off switch is on the “Off”
position before plugging in the pressure
washer, press the switch with mark “O” to
ensure it is off.
Ensure the trigger safety latch is released by
pushing it down and engage the trigger for a
few seconds to discharge the residual
pressure in the high-pressure hose.
Depress the trigger until there is a steady stream of water. Before changing spray tip, switch the washer
off, depress trigger to release pressure and activate trigger handle safety latch. Change the spray tip as
per the recommendation on page 7, if necessary.
OFF
ON
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Make sure spray tip and wand is well locked. Do not move the spray tip while trigger is
depressed.
If painted surfaces are peeling or chipping, use extreme caution as pressure washer may remove
the loose paint from the surface.
For most cleaning applications, a forty degree (40o) spray angle is recommended to avoid
damage to the surface being sprayed.
The pressure of spray on the surface will increase when you move the wand closer to the
surface.
Only use cleaning detergents recommended for
pressure washers. Always follow detergent
manufacturer’s label recommendations for proper use
of detergents or soap. Always protect eyes, skin and
respiratory system from detergent if used.
CAUTION
CAUTION
CAUTION
CLEANING DETERGENTS DISPENSER
ASSEMBLY AND OPERATION INSTRUCTIONS
OFF
Working with detergent ensures a quick soaking of the
dirt, and allows the high-pressure water to penetrate and
remove the dirt more effectively.
To apply detergents you must be operating at
low-pressure. This provides a gentle application of
detergent, with the pressure equivalent to a garden
hose. The high-pressure setting is used for cleaning; you
cannot apply detergents when working at high-pressure.
Always test detergent in an inconspicuous area before
use.
Turn off the pressure washer by pressing
the switch with mark “O”, set the trigger
safety latch. For storage, drain washer after
use by removing water connection,
turning on the washer for a few seconds
and depressing gun trigger to release
remaining water in the pump. Turn off
immediately.
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ASSEMBLY AND OPERATION INSTRUCTIONS
4 Turn on the pressure washer. Depress trigger to operate washer. The liquid detergent will
automatically mix with water, and be discharged through the spray tip.
5 Allow detergent to remain on the surface for a short time before rinsing. Do not allow detergent to
dry on surface.
6 Rinse with clean water under high-pressure. On a vertical surface, rinse from the bottom up, then
rinse from the top down to avoid streaking. Hold nozzle 6”-8” (15-20 cm) from the cleaning surface,
at a 45° angle.
7 When you have finished using the detergent dispensing system, fill detergent tank with clean water
to rinse the system clean. Depress the trigger for one minute at low-pressure so that all
detergents remaining in the system are thoroughly flushed out. Remove detergent tank to empty the
remaining water, and rinse it until it is thoroughly cleaned.
2 Attach the low-pressure spray tip (black)
for soap or detergent application.
Detergent application will only work with
low-pressure spray tip.
3 Lift up to remove the cap of detergent tank,
fill tank with detergent or soap and replace
the cap. Apply detergent as instructed by the
detergent manufacturer.
1 Engage trigger safety lock.
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Fail to follow detergent clean procedure will cause the dispensing system to become clogged.
Damage may occur to painted surface if chemical is allowed to dry on surface.
Wash and rinse a small section at a time. Avoid working on hot surfaces or in direct sunlight.
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 pressure washer and will damage the surface being cleaned.
Failure to follow the above instructions will void product warranty.
CAUTION
ASSEMBLY AND OPERATION INSTRUCTIONS
12 English

SHUT DOWN AND STORAGE
1 (If you are not using detergent, go directly to Step 2.) When you have finished using the detergent
dispensing system, fill detergent tank with clean water to rinse the system clean. Depress the
trigger for one minute at low-pressure so that all detergents remaining in system are thoroughly
flushed out. Remove detergent tank to empty the remaining water, and rinse it until it is thoroughly
cleaned.
2 Turn off water supply and disconnect the garden hose from the faucet and the water inlet on the
washer.
3 Depress the trigger for a few seconds to release any remaining water until water spray stops,
turn off washer immediately.
4 Unplug the Ground Fault Circuit Interrupter (GFCI) from the power outlet and wrap power cord into
the cable reel by rotating the reel with hand crank.
5 For storage, disconnect the high-pressure hose from the trigger handle and wrap hose into the hose
reel by rotating the reel with hand crank.
6 Engage trigger handle safety latch and disconnect the quick – connect wand from trigger handle,
disconnect and replace the spray tip to tip holder on the washer, insert the wand into the wand
holder.
7 Store the washer and accessories in a room that does not reach freezing temperatures. Do not store
near furnace or other sources of heat as it may dry out the pump seals.
Turn off water supply and depress trigger to depressurize the washer. Failure to do so could
result in personal injury due to discharge of high-pressure water.
WARNING
Winterizing your pressure washer will help protect and prolong its life. We strongly recommend you fol-
low the below steps using pump saver*. This will keep the internal parts lubricated, protected from rust,
and prevents the pump from freezing.
1. Connect the pump saver hose onto the inlet adaptor and
quick-connect coupling.
2. Depress button on top of pump saver container.
3. Continue until fluid exits the pressure hose for 15
seconds.
4. Remove the hose from pump inlet.
*NOTE: Pump saver is not supplied with your pressure washer. It can be purchased where you
purchased this product and at most home center stores. For more information call: 1-866-902-9690.
OPTIMUM WINTERIZING PROCEDURE
English 13

CLEANING AND MAINTENANCE
Water Filter Screen
The pressure washer is equipped with a water filter screen to protect the pump. If the screen is not kept
clean, the flow of water to the pressure washer will be restricted and the pump may be damaged.
Main Body Cleaning
Use only mild soap and damp cloth to clean the main body.
Connections
Connections on pressure washer hoses, trigger handle and spray wand should be cleaned regularly and
lubricated with non-water soluble grease. Failure to do so could void the product warranty.
Spray Tips Only
Clogging of the spray tips causes the pump pressure to be too high and cleaning is immediately
required. Clean the spray tips by carefully inserting the tip cleaning needle provided, or a thin and sharp
instrument (i.e. sewing needle) into the tip to remove any dirt deposited.
H2
I
1. To clean inner water screen, remove the inlet adaptor
and remove the filter screen from the pump inlet.
2. Rinse screen until it is free of debris and blockage.
3. Replace the filter screen and inlet adaptor immediately
to prevent any foreign matter from entering the pump.
Never use the pressure washer to clean itself
To assure product safety and reliability, repairs should
be performed by authorized service technician or other
qualied service personnel, always use manufacturer
replacement parts.
Service or repairs made by unauthorized personnel will
void the product warranty.
WARNING
WARNING
14 English

TROUBLESHOOTING
Motor will not start.
Washer does not reach
high-pressure.
On/Off switch is in the “Off”
(O) position.
Diameter of garden hose is
too small.
GFCI is not plugged in.
Water supply is restricted.
Extension cord is too long.
Extension cord is not proper
gauge. Extension cord is
damaged.
Not enough water supply.
Electrical outlet does not
supply adequate power.
Water filter screen is clogged.
Tripped pressure washer
thermal protector.
Power nozzle is in
low-pressure position.
Turn switch to the “On” (-)
position.
Replace with a 1” (25 mm) or
5/8” (16 mm) garden hose.
Plug in GFCI.
Check garden hose for kinks,
leaks and blockage.
Replace extension cord with
either a 25’ (7.6 m) 14/3
gauge cord or a 50’ (15 m)
14/3 gauge cord.
Open water source fully.
Try a different outlet.
Remove filter and rinse in
warm water.
Allow to cool, and restart
washer.
Replace with desired
high-pressure tip.
Disconnect the pressure washer from the power source before making any repairs.
Symptom Cause Solution
(Continued on page 16)
English 15

TROUBLESHOOTING
Output pressure varies high
and low.
Pump is sucking air.
Detergent is not working.
Detergent bottle or suction
tube not properly connected.
Water filter screen is clogged.
Detergent is too thick.
Discharge nozzle is
obstructed.
Not enough inlet water supply.
Calcified gun, hose or power
nozzle.
Pump is sucking air.
Detergent container is empty.
Check that hoses and
fittings are airtight. Turn
off washer, and purge pump
by squeezing trigger handle
until a steady flow of water
emerges through the spray
tip.
Check connections.
Remove filter and rinse with
warm water.
Dilute detergent.
Blow out or remove debris
with a tip cleaning needle.
Turn water on fully. Check
garden hose for kinks, leaks
or blockage.
Run distilled vinegar through
detergent tank.
Check that hoses and
fittings are airtight. Turn
off washer, and purge pump
by squeezing trigger handle
until a steady flow of water
emerges through the spray
tip.
Add more detergent.
Symptom Cause Solution
Washer does not reach
high-pressure.
16 English

TROUBLESHOOTING
Garden hose connection
leaks.
Spray wand, extension, or
nozzle leaks.
Pump is noisy.
Water leaks from pump (up
to 10 drops per minute is
permissible).
Filter on detergent suction
tube is clogged.
Detergent is not working.
Pump is sucking air.
Loose fittings.
Discharge nozzle is
obstructed.
Loose fittings.
Pump is sucking air.
Missing/worn rubber washer.
Damaged or clogged
detergent suction tube.
Spray nozzle not properly
attached.
Water filter is clogged.
Nozzle is in high-pressure
position.
Run warm water through filter
to remove build-up.
Check that hoses and
fittings are airtight. Turn off
washer and purge pump by
squeezing trigger handle until
a steady flow of water
emerges through the spray
tip.
Check that all fittings are tight.
Blow out or remove debris
with a tip cleaning needle.
Tight fittings.
(Continued on page 18)
Call the Toll-Free Hotline:
1-866-902-9690
Insert new washer.
Remove obstruction or
replace detergent suction
tube.
Ensure quick-connect wand is
attached securely.
Ensure spray tip is clicked in
securely.
Remove water filter and rinse
in warm water.
Use low-pressure (black) tip.
Symptom Cause Solution
English 17

TROUBLESHOOTING
Oil is dripping.
Motor buzzes but fails to run.
No water.
Water seals are damaged or
worn.
Quick-connect assembly is
attached in reverse.
System has residual
pressure.
Voltage loss due to extension
cord.
Water supply is off.
Pressure washer not used for
long periods.
Oil seals are damaged or
worn.
Residual friction among
components. Washer might
hum.
Kink in the garden hose.
Supply voltage below
minimum.
Call the Toll-Free Hotline:
1-866-902-9690
Verify that Inlet adaptor (H2)
is attached to washer’s water
inlet and that the quick-con-
nect coupler (H1) is attached
to garden hose.
Turn washer off, squeeze
trigger on spray wand to
release pressure, then turn
washer on.
Unplug any extension cords
attached and plug the washer
directly into the outlet.
Turn on water supply.
Call the Toll-Free Hotline:
1-866-902-9690
Call the Toll-Free Hotline:
1-866-902-9690
Disconnect water supply and
power on for 2 to 3 seconds,
repeat couple times or until
the motor starts.
Remove kink in garden hose.
Verify that only the pressure
washer is running on this
circuit.
Symptom Cause Solution
IF YOU HAVE ANY QUESTIONS, CALL OUR TOLL-FREE HOTLINE:
1-866-902-9690
www.MightyCleanUSA.com
Water leaks from pump (up
to 10 drops per minute is
permissible).
18 English