Amazing Machinery 5.5-24HP GAS & DIESEL ENGINEPRESSURE WASHER User manual

5.5-24HP GAS & DIESEL ENGINE
PRESSURE WASHER MANUAL

■Trigger Guns and Wands………………………………........6
■Spray Tips & Chemical Injectors……………………………7
■Trouble Shooting…………………………………………….8
■Pump Part Diagrams…………………………………………9
■XMV Pump Break Down A/R……..……………………….10
■EZ Series Pump Break Down General…………………11
■T Series Pump Break Down General……………………….12
■Warranty Information………………………………………13
UNPACKING
After you have received your machine and signed that the shipping carton and product look to be
in sound condition, open the carton and inspect closer for possible freight damage if you have
already signed for your machine, and do find said damage contact Amazing Machinery as soon
as possible. Check to see that all ordered parts a present and still in new condition. Start by
removing the box and bands. Next remove the pressure washer from the pallet. Never start a
new machine until you have checked the fluid levels. Oil can spill during shipping this does not
represent damage.
Be certain you have inspected all packaging very well before discarding. Small parts
may shake loose during shipping and be unnoticeable in or around large pieces of the
packing material.

Note: Units will include a dual lance wand or a single lance wand depending on the type of unit purchased.
1¼” FPT Socket
2Molded Grip 36” Wand
3Trigger Gun
43/8” FPT Socket
53/8” Hose
Dual Lance Wand Only
6¼” MPT Socket
7¼” Meg Chemical Nozzle
8Dual Lance Wand
NOTE: Use Teflon tape on all fittings to insure no leaks will occur.
To assemble a wand start by attaching the wand to the trigger gun, grip end closest to the trigger gun. The
trigger gun has ¼” FPT which will accept the ¼” MPT of the wand. Next attach the ¼ socket to the end of
the wand. If you have a dual lance wand you will also need to attach the ¼” Meg chemical Nozzle. At the
base of the gun you will also have a QC 3/8” plug or socket at the base of the gun which quick connects to
the hose.
Single wands are operated by utilizing the QC spray tips shown below and simply squeezing the trigger to
allow for water flow.
Dual lance wands operate by utilizing the QC spray tips shown below and have the capability to adjust
pressure and chemical at the wand. To adjust pressure rotate the side grip, the further you rotate the lower
your pressure goes. To allow for chemical application rotate the grip all the way, this will drop your
pressure engaging the injector.

Spray Nozzle
A spray nozzle is located on the end of your wand and is interchangeable to create different angle fans. As
you use different nozzles you will increase or decrease the width of the fan.
Typical Pressure Washing Spray Nozzles
•0° Spray Tip – RED - This tip is not recommended for wood applications, its
stream of water is to narrow and concentrated. This tip would be ideal for concrete, and metal.
•15° Spray Tip – YELLOW - This tip is a heavy duty cleaning or stripping tip. You
can use this tip for cleaning concrete, loose paint, and driveways.
•25° Spray Tip – GREEN - This tip is for general washing purposes. You will find yourself using
this tip for your deck, siding, and your car.
•40° Spray Tip – WHITE - This tip has the least amount of impact. The white tip is great for
rinsing, cleaning out your gutters, and other sensitive jobs.
How do I clean a clogged nozzle?
Remove the nozzle from your system, using a small piece of wire like a paper clip clear the clog. Flush
water backwards through the nozzle and replace it on your pressure washer. If it is still partially clogged try
again.
How often should I replace my nozzles?
This depends on much time you use your machine. A good rule of thumb is if you notice a gradual pressure
lose you should replace that tip. Not all tips will wear out at the same time.
Why should I keep my nozzles clean?
A clogged nozzle can increase the back pressure on your pump causing damage.
Chemical Injectors
Depending on your machine you may have an integrated or separate chemical injector which draws at a
20% mixture. If you have a separate injector it needs to be attached at the high pressure out port of your
pump and then attach the hose gun and wand. On single wand systems you must use the black QC spray
tip that is included with your machine in order for the injector to draw. Place your feed tube with filter
attached into the chemical of choice and pull trigger. On Dual wand systems you will need to rotate your
grip to the low pressure tube with the ¼” meg tip for chemical application.

NOTE: Not all Machines are plumbed alike. This diagram will give you a generalized
view of pump component location.
If your unloader is equipped with a black knob simple pressure adjustments may be made
by turning the knob counterclockwise to lessen pressure and clockwise to increase
pressure.
For technical assistance with unloaders call Amazing Machinery at 1-800-504-7435.
We have a complete line of unloaders and a knowledgeable staff to answer all of your
questions.