Maxus MX5333 Parts list manual

maxustools.com
IN469002AV 3/12
© 2012
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Gasoline Powered
Pressure Washers
Operating Instructions and Parts Manual
Models: MX5223, MX5333, MX5433

Table of Contents
For parts, product and service information
Visit: www.maxustools.com
Call: Customer Service at 1-800-330-0712
Address any correspondence to: Customer Service
100 Mundy Memorial Drive
Mount Juliet, TN 37122 U.S.A.
Description. . . . . . . . . . . . . . . . . . . . . . . . . . 3
Specifications. . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines . . . . . . . . . . . . . . . . . . . . 4
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . 4
Important Safety Information. . . . . . . . . 4
Instructions Pertaining to a Risk of Fire,
Electric Shock, or Injury to Persons . . . .4
California Proposition 65 . . . . . . . . . . . . .4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Work Area. . . . . . . . . . . . . . . . . . . . . . . . . . .4
Personal Safety . . . . . . . . . . . . . . . . . . . . . .4
Tool Use and Care . . . . . . . . . . . . . . . . . . .5
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Frequently Asked Questions . . . . . . . . . . 6
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Contents in the Carton . . . . . . . . . . . . . . .7
Additional Items Not Included . . . . . . . .7
Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Getting To Know Your Pressure Washer 9
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended Uses for this Pressure
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Assembly and Pre-operation . . . . . . . . . 10
Assembly and Pre-operation. . . . . . . . 10
Trigger Safety Latch. . . . . . . . . . . . . . . . 11
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Surface Preparation. . . . . . . . . . . . . . . . 11
Start Up. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Initial High Pressure Rinse. . . . . . . . . . 12
Pressure Adjustment . . . . . . . . . . . . . 12
Adjusting the Spray Fan Angle. . . . . 12
Angle to the Cleaning Surface . . . . . 12
Distance From Cleaning Surface . . 12
How to Avoid Damaging Surfaces. . 12
Detergent Application. . . . . . . . . . . . . . 13
Detergents . . . . . . . . . . . . . . . . . . . . . . 13
General Cleaning Tips . . . . . . . . . . . . 13
Cleaning Power. . . . . . . . . . . . . . . . . . . . 13
Final Rinse . . . . . . . . . . . . . . . . . . . . . . . . 13
Pressure Relief Procedure . . . . . . . . . . 13
Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . 13
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Long Term Storage Instructions . . . 14
Winterizing Instructions . . . . . . . . . . . 14
Tips For Extending The Life Of Your
Pressure Washer . . . . . . . . . . . . . . . . . . 14
Maintenance . . . . . . . . . . . . . . . . . . . . . . . 15
Engine Oil Changing Instructions . . . 15
Maintenance Schedule . . . . . . . . . . . . . 15
Technical and Consumer
Information . . . . . . . . . . . . . . . . . . . . . . . 15
Troubleshooting Guide . . . . . . . . . . . . . . 16
Replacement Parts List . . . . . . . . . . . . . . 18
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Carefully read and understand these instructions before operating your
pressure washer.

Operating Instructions and Parts Manual
Gasoline Powered
Pressure Washers
Specifications
Model MX5223
Honda GX160
CAT 30NX25
#3.0 Tip
Pressure: 2750 psi / 18,961 kPa
Flow: 2.5 GPM
Model MX5333
Honda GX270
CAT 35PX30
#3.5 Tip
Pressure: 3200 psi / 22,063 kPa
Flow: 3.0 GPM
Model MX5433
Honda GX390
CAT 66DX35
#3.5 Tip
Pressure: 4000 psi / 247,579 kPa
Flow: 3.5 GPM
Figure 1 - Model MX5223, MX5333 and MX5433
www.maxustools.com 3
Description
These powerful and durable gasoline pressure washers are designed for industrial
projects. They are great for projects in maintenance shops, farms, and commercial
buildings like concrete drives/sidewalks and heavy equipment.
All carts are durable steel construction, welded and powder-coated for longevity.
These pressure washers are proudly built in Tennessee with heavy-duty, reliable Honda
engines and commercial-grade pumps.
Please record Model Number and
Serial Number for use when contacting
the manufacturer:
Model No.: _________________________
Serial No.: __________________________
Purchase Date: _____________________
Purchase Place: _____________________
For information about this product,
call 1-800-330-0712.

Important Safety Information
INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY
TO PERSONS
This manual contains important safety, operational and maintenance information. If
you have any questions, please call 1-800-330-0712 for customer assistance.
When using tools, basic precautions should always be followed,
including the following:
CALIFORNIA PROPOSITION 65
This product or its power cord may contain chemicals known to the State
of California to cause cancer and birth defects or other reproductive
harm.Wash hands after handling.
GENERAL
a. To reduce the risks of electric shock, fire, and injury to persons, read
all the instructions before using the tool. Failure to follow warnings,
dangers, and cautions could result in DEATH or SERIOUS INJURY.
b. Be thoroughly familiar with the controls and the proper use of the
equipment. Follow all instructions. Contact your Maxus representative if you have
any questions.
c. Only persons well acquainted with these rules of safe operation should be allowed
to use the unit.
d. Follow all safety codes as well as the Occupational Safety and Health Act (OSHA).
WORK AREA
a. Keep operation area clear of all persons.
b. To reduce the risk of injury, close supervision is necessary when the product is used
near children.
c. Do not operate the tool in explosive atmospheres, such as in the
presence of flammable liquids, gases, or dust. The tool is able to create
sparks resulting in the ignition of the dust or fumes.
d. NEVER spray flammable liquids or use pressure washer in areas
containing combustible dust, liquids, or vapors.
e. Never operate this machine in a closed building or in or near an
explosive environment.
PERSONAL SAFETY
a. Stay alert. Watch what you are doing and use common sense when operating the
tool. Do not use the tool while tired or under the influence of drugs, alcohol, or
medication. A moment of inattention while operating the tool increases the risk of
injury to persons.
b. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep hair,
clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair
increases the risk of injury to persons as a result of being caught in moving parts.
c. Do not overreach. Keep proper footing and balance at all times. Proper
footing and balance enables better control of the tool in unexpected
situations.
Risk of injection or severe injury.Keep clear of nozzle. Do not
discharge streams at persons.This product is to be used only
by trained operators. Always remove lance from gun before cleaning debris from tip.
Safety Guidelines
This manual contains information
that is very important to know
and understand. This information
is provided for SAFETY and to
PREVENT EQUIPMENT PROBLEMS.
To help recognize this information,
observe the following symbols.
Danger indicates
an imminently
hazardous situation which, if not avoided,
WILL result in death or serious injury.
Warning indicates
a potentially
hazardous situation which, if not avoided,
COULD result in death or serious injury.
Caution indicates
a potentially
hazardous situation which, if not avoided,
MAY result in minor or moderate injury.
Notice indicates
important
information, that if not followed, may
cause damage to equipment.
IMPORTANT: Information that
requires special attention.
Safety Symbols
The following Safety Symbols appear
throughout this manual to alert you
to important safety hazards and
precautions.
Read Manual
First
Risk of
Explosion
Risk of Fire
Risk of Falling Risk of Personal
Injury
Operating Instructions and Parts Manual
www.maxustools.com
Wear Eye
and Hearing
Protection
4

d. Keep clear of nozzle. NEVER direct high pressure spray at a
person, animal, or yourself.
e. NEVER put hand or fingers over the spray tip while operating
the unit.
f. NEVER try to stop or deflect leaks with any body part.
Ensuring that the tool is used
only when the operator and all
other personnel in the work area are wearing ANSI Z87
eye protection equipment, and when required, other
appropriate protection equipment such as head, hearing
protection, gloves, rubber boots, protective clothing when operating
and performing maintenance. Serious eye or permanent hearing loss
could result.
TOOL USE AND CARE
Do not use pressure that exceeds the operating
pressure of any of the parts (hoses, fittings, etc.)
in the pressurized system. Ensure all equipment and accessories are
rated to withstand the maximum working pressure of the unit.
Explosion hazard:
a. Maintain the tool with care. A properly maintained tool
reduces the risk of problems and is easier to control.
b. Ensure safety devices are operating properly before each use.
DO NOT remove or modify any part of the gun or unit.
c. NEVER operate the machine without all components
properly connected to the machine (handle, gun/wand
assembly, nozzle, etc.).
d. Know how to stop this product and bleed pressure quickly.
Be thoroughly familiar with the controls.
e. ALWAYS engage the trigger safety latch in the safe position
when spraying is stopped even if only for a few moments.
f. NEVER permanently engage the trigger mechanism on the
gun.
g. ALWAYS follow detergent manufacturer’s label
recommendations for proper use of detergents. Always
protect eyes, skin, and respiratory system from detergent
use.
h. NEVER disconnect the high pressure discharge hose from
the machine while the system is pressurized. To depressurize
machine, turn power and water supply off, then press the
gun trigger 2-3 times.
i. Do not remove fuel tank cap or fill fuel tank while engine
is hot or running (allow engine to cool two minutes before
refueling). Always fill the tank slowly.
j. Follow the maintenance instructions specified in the
manual.
5
Equipment damage:
k. ALWAYS turn water supply “ON” before turning pressure
washer “ON.” Running pump dry causes serious damage.
l. Do not operate the pressure washer with the inlet water
screen removed. Keep screen clear of debris and sediment.
m. NEVER operate pressure washer with broken or missing
parts. Check equipment regularly and repair or replace worn
or damaged parts immediately.
n. Use only the nozzles supplied with this machine.
o. NEVER leave the wand unattended while the machine is
running.
p. ALWAYS hold gun and wand firmly when starting and
operating the machine.
q. NEVER allow the unit to run with the trigger released (off) for
more than one minute. Resulting heat buildup will damage
the pump.
r. NEVER store the pressure washer outdoors or where it could
freeze. Freezing temperatures can seriously damage the
pump.
s. NEVER tamper with the engine governor or attempt to alter
factory settings. Altering factory settings could damage the
unit and will void the warranty.
SERVICE
a. When servicing a tool, use only identical replacement
parts. Use only authorized parts.
SAVE THESE INSTRUCTIONS — DO NOT DISCARD
NOTE: The DANGER, WARNING, CAUTION, and NOTICE
notifications and instructions in this manual cannot cover all possible
conditions and situations that may occur. It must be understood by the
operator that common sense and caution are factors which cannot be
built into this product, but must be supplied by the operator.
Models MX5223, MX5333 and MX5433
www.maxustools.com
Important Safety Information (Continued)