Dirt Killer E300 User manual

This manual contains important
warnings and instructions
Read and retain for future reference
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Operator’s Manual
DIRT KILLER PRESS RE WASHERS
1708 WHITEHEAD ROAD, STE. 103
BALTIMORE, MD 21207

WARNING - When using this product basic
precautions should always be followed, including the
following:
1. Read all the instructions before using the product.
2. To reduce the risk of injury, close supervision is
necessary when the product is used near children.
3. Know how to stop the product and bleed pressures
quickly. Be thoroughly familiar with the controls.
4. Stay alert - watch what you are doing.
5. Do not operate the product when fatigued or under
the influence of alcohol or drugs.
6. Keep operating area clear of all persons.
7. 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. Some odels of Electric Pressure Washer Are
Provided With A Ground Fault Circuit Interrupter Built
Into The Power Cord Plug. If Replacement Of the Plug
Or Cord Is Needed, Use Only Identical Replacement
Parts.
10. Never leave the unit unattended while running.
WARNING -
Risk f Injecti n r Severe Injury
Keep Clear f N zzle
D N t Direct Discharge Stream at
Pers ns
This Pr duct Is T Be Used Only By
Trained Operat rs.
Always wear eye, ear and body protection when
using a pressure washer.
Use caution when using cleaning chemicals.
Read the SDS sheets before using any cleaning
chemical.
Always wear protective clothing, gloves and face
shield when using cleaning chemicals.
SAVE THESE INSTR CTIONS
GRO NDING INSTR CTIONS
If the pressure washer is electrically powered it
must be grounded. If it should malfunction or
breakdown, grounding provides a path of least
resistance for electric current to reduce the risk of
electric shock. This product is equipped with a
cord having an equipment-grounding conductor
and a grounding plug. The plug must be plugged
into an appropriate outlet that is properly installed
and grounded in accordance with all local codes
and ordinances.
DANGER –Improper connection of the
equipment-grounding conductor can result in a risk
of electrocution. 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. Do not use any type of
adaptor with this product.
GRO ND FA LT CIRC IT
INTERR PTER PROTECTION
Some models of electric pressure washers are
provided with a ground-fault circuit-interrupter
(GFCI) built into the plug of the power-supply cord.
This device provides additional protection from the
risk of electric shock. Should replacement of the
plug or cord become necessary, use only identical
replacement parts that include GFCI protection.
Dirt Killer Pressure Washer Operator’s Manual Version 1.1 - May 2015
1
IMPORTANT SAFETY INSTR CTIONS

IMPORTANT SAFETY INSTR CTIONS
EXTENSION CORDS
Use only 3-wire extension cords that have 3-prong
grounding-type plugs and 3-pole cord connectors
that accept the plug from the product. Use only
extension cords that are intended for outdoor use.
These extension cords are identified by a marking
“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. eep cord away from heat and sharp
edges. Always disconnect the extension cord from
the receptacle before disconnecting the product
from the extension cord.
WARNING – To reduce the risk of electrocution,
keep all connections dry and off the ground. Do
not touch plug with wet hands.
AVOID CAVITATION DAMAGE
Cavitation is the formation and collapse of
gaseous cavities in a liquid causing severe wear
or eroding of the metal surfaces in the pump. The
most common cause of cavitation is when the
pump is starved for water or if leaks are allowing
air to get into the pressure washer pump. The
most obvious sign of cavitation is a hammering
noise. This noise can be either constant or
intermittent depending upon the degree of
cavitation and damage to the pump. Persistent
cavitation will eventually cause flow and pressure
to decrease. It is important to carefully check your
system during assembly and operation to avoid
the serious damage that can be caused by
cavitation. Check your system for these
conditions which may contribute to, or directly
cause, cavitation:
1 Inadequate inlet line size
2. Insufficient inlet flow or excessive suction
3. Excessive inlet line length
4. Rigid inlet plumbing
5. Too many elbows and/or fittings
6. Excessively hot inlet water
7. Air leak in inlet plumbing
8. Agitation in supply reservoir
9. Clogged inlet filters
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Dirt Killer Pressure Washer Operator’s Manual Version 1.1 - May 2015

ACCESSORIES INCL DED
Gunjet Lance
High Pressure Hose
Injector
Nozzles - See model type for list:
Models: H200 / H260 / H357 - Vario Jet Nozzle,
Dirt Killer Nozzle
Models: H360 / E300 - Flat Tip Nozzle Set
(0, 15, 40, Soap), Industrial Dirt Killer Nozzle
Models: E3000 / H3612 - Flat Tip Nozzle Set
(0, 15, 40, Soap
INSTALLATION INSTR CTIONS
1. Remove pressure gauge cover. You will notice
that the pressure gauge is filled with liquid. This is
glycerin, not water. The glycerin dampens the
movement of the pressure gauge needle to insure
long life.
2. Check the oil level on your pressure washer.
Do this by checking the dip stick on the top of the
pressure washer pump. The oil level must be
between the flat blade of the dip stick. If the oil is
milky or very dark in color consult a technician
before operating the pressure washer
2. If the pressure washer is equipped with a hose
reel, unroll the hose from the hose reel insuring
that there are no kinks. Insure that the high
pressure hose is not a tripping hazard.
(WARNING - High pressure hose can be damaged
if run over by a heavy object such as a vehicle).
3. Connect your gun jet onto the high pressure
hose. Insure that all quick couplers have o-rings or
your pressure washer will leak from the quick
coupler connector.
WARNING - Insufficiently tightened fittings may
tear o-rings and leak when the pressure washer is
operating. .
4. Insure a water filter is installed on the water
inlet. Check the water filter to insure that it is free
of dirt or debris. Connect your unit to a water hose
making sure that your supply hose is at least 5/8”
diameter and has no leaks, or kinks. (For pressure
washer of greater then 3.5 gallons per minute use
a 3/4” garden hose to insure proper inlet water
flow). If there are leaks make necessary repairs.
Insure that you turn on the water spigot completely
so that the full flow is obtained. The inlet water
should be cold; the temperature may not exceed
140 F. Be sure your unit receives its full water flow
requirement.
WARNING - Insufficient inlet water flow can cause
cavitation resulting in pump damage.
5. If using cleaning chemical with your pressure
washer, mix your cleaning agents in a separate
clean container adhering to manufacturer’s
recommended dilution ratios. Submerge the
chemical pickup line into the solution.
6. If you are using an electric pressure washer, be
aware of the voltage and amperes stamped on
motor. Unroll the power cord completely. Insure
the power cord is not in a place where it will be a
tripping hazard or will get wet. Plug the cord into
an outlet that will provide sufficient voltage and
amperage to the unit. On 110 volt machines al-
ways use ground 12-3 gauge UL approved
extension cords. Never run more than 50 feet of
extension cord from the source.
Oil level
3
Gauge cover
Dirt Killer Pressure Washer Operator’s Manual Version 1.1 - May 2015

INSTALLATION INSTR CTIONS (continued)
Dirt iller endorses the use of UL approved ground
fault interrupters (GFI). (Warranty will be void if a
GFI equipped model has the GFI plug cut off).
7. If your pressure washer is gasoline driven,
always check and fill the gas tank prior to starting.
WARNING - Filling the gasoline tank while the
pressure washer is running may ignite the fuel and
cause a fire. Never fuel a pressure washer while it
is running!
8. If your pressure washer is a fuel-fired hot water
pressure washer, make sure burner fuel tank is
filled with diesel fuel.
OPERATING INSTR CTIONS
1. Turn on the inlet water and purge air from the
system by squeezing the gun trigger.
2. For gas powered pressure washers: Turn
gas valve on, close choke lever per manufacturers
instructions, advance throttle lever approximately
1/3 of the way open, and turn the engine switch to
ON. Start engine with the pull cord. (For easier
starting, squeeze the trigger on spray gun as you
start the unit). Note - if unit has optional electric
start turn switch to start and crank the engine until
it runs. Allow the machine to warm-up a few
seconds. Advance the throttle to full. You are now
ready to clean.
For electrically powered pressure washers:
When starting an electric pressure washer pull
the gunjet trigger as you turn on the machine to
insure longer motor life. To operate the pressure
washer turn or press the switch to the ON position.
If the pressure washer does not come on when
switched on, and the pressure washer is equipped
with a the ground fault circuit interrupter (GFCI),
then reset the GFCI by pressing the Reset button
located on the GFCI.
3. Pull the trigger on the gun jet to clean with the
pressure washer.
4. If the pressure washer is equipped with a thirty
second time delay. After releasing the trigger, the
pressure washer motor will run for 30 additional
seconds and then shut off. To turn the pressure
washer on again, re-trigger the gun jet.
WARNING - if the pressure washer equipped with
auto on/off is leaking at any place in the system
(gun jet, hose, water inlet, etc.) this auto-shut off
system will not function properly. Fix the leaks
immediately or consult with a technician before
using the pressure washer.
For hot water pressure washers: After starting
either the gas engine or electric motor, allow the
machine to warm-up before switching on the
burner . Adjust the temperature control knob to
desired temperature (Max. water temp is 210˚) on
hot water burner units.
3. Dirt iller pressure washers are equipped with
downstream, low pressure soap injectors. To draw
chemical/detergent, be sure the pick-up tube is
inserted into the chemical container with the tube
submerged in the solution. Change nozzle to the
soap nozzle (nozzle with black plastic cover and
large orifice); or if using a Variojet nozzle, push the
nozzle body to the forward position and squeeze
the gunjet trigger. The gauge will register a couple
hundred pounds of pressure and chemical/soap
will mix into water stream at a 10-1 ratio. Soap will
take several seconds to pass through the high
pressure hose. Always allow the cleaning
chemical time to dwell on the surface to be
cleaned to insure that the chemical's active
ingredients can do their job.
WARNING - Do not let the chemical dry on the
surface to be cleaned. Chemicals that are allowed
to dry on the surface may cause damage.
CHEMICALS
The exit side or down stream chemical injector
allows you to apply chemical without the
chemicals coming into contact with the pump. Use
the downstream injector to apply soap, pesticides,
acids, alkaline and plant protective agents.
Contact your local Dirt iller distributor regarding
use of the correct chemical for your Dirt iller
Pressure Washer
4
Dirt Killer Pressure Washer Operator’s Manual Version 1.1 - May 2015

OPERATING INSTR CTIONS (continued)
NLOADER
To adjust the pressure
turn the unloader handle.
Rotate handle in a
counter-clockwise
direction to reduce
pressure. Rotate in a
clockwise direction to in-
crease the pressure back to the maximum.
(Maximum pressure is set at the factory. Tamper-
ing with the setting will void pump warranty).
DIRT KILLER NOZZLE
When cleaning hard
surfaces such as concrete,
steel, etc, you may achieve
better and faster cleaning
results by using the Dirt
iller or Industrial Dirt iller
rotary nozzle.
The Dirt iller and Industrial Dirt iller nozzles hit
much harder than regular spray nozzles and
should be used carefully to avoid damage to
surfaces to be cleaned. To insure long life of your
Dirt iller nozzle follow these simple rules: 1) al-
ways point the nozzle down when starting to spray,
2) do not use with water hotter than 160
degrees F., 3) keep dirt out of the nozzle.
WARNING - Do not use a rotary nozzle on
wooden or painted surfaces. It may damage the
wood or remove the paint.
VARIOJET NOZZLE
Models H200, H357, H260,
come equipped with the
Variojet nozzle. For high
pressure spray pull back on
the nozzle body. For low
pressure application of
soap/chemical, push the
nozzle body forward. To
vary the fan spray angle
twist the nozzle body to desired angle.
SPECIAL INSTR CTIONS FOR HOT
WATER PRESS RE WASHERS
PRESS RE SWITCH
Dirt iller hot water pressure washers use a
pressure switch to control burner ignition. When
the gunjet trigger is pulled the pressure switch
detects the pressure in system and ignites the
burner. When the gunjet is closed, and the pump
is in by-pass mode and no pressure is registered
on gauge; the pressure switch shuts down the
burner. At no time should the burner be on when
the gunjet is closed. If this occurs, shut off the
pressure washer immediately and consult a
service technician.
H3612 OPERATIONS
These units are equipped with a 12 volt burner.
This burner is powered by both a rectifier on the
Honda engine and the battery installed on the
pressure washer when operating in the hot water
mode. The system can operate for 12 hours in the
hot water mode before the battery needs to be
recharged. This 12 hours can be continuous or
through periodic operation. When the battery is
depleted the burner will no longer run. Recharge
the battery with a slow trickle charger with
automatic shut-off. An overnight charge should
completely recharge the battery. The battery will
also recharge when operating as a cold water unit;
the rectifier of the Honda engine provides a charge
to the battery. However, this process is much
slower than a battery recharger.
SH T DOWN INSTR CTIONS
For gas powered pressure washers:
1 Move throttle lever to idle position, the turn
engine switch to off. Shut off gas to the carburetor
by moving valve to the left.
For electrically powered pressure washers:
1. Turn motor switch to off.
After turning the pessure washer off:
2. Turn water source off.
3. Squeeze gunjet trigger to relieve remaining
pressure in the high pressure hose.
Dirt Killer Pressure Washer Operator’s Manual Version 1.1 - October 2015
Unloader
5

SH T DOWN INSTR CTIONS (continued)
WARNING - Failure to release the pressure will
prevent you from disassembling the hose, gunjet
and nozzle.
4. Apply safety catch on the gunjet.
5. Disconnect water supply hose and disassem-
ble the hose, gunjet and nozzle. Roll up the hose
onto the hose reel, if applicable.
6. Pull the plug from the socket and wind up the
power cord.
7. Check and clean the water filter
8. In colder climates it is necessary to protect the
pump from freezing (refer to freeze protection).
SER-MAINTENANCE INSTR CTIONS
1. The pump has an oil bath in the pump
transmission. Check to oil before every use to
insure that there is sufficient oil and that the oil is
not discolored. Remove the dip stick. The oil level
should be within the flat area on the dip stick. Use
synthetic oil, 5-W50. Change the oil after the first
50 hours of operation and every 200 hours there-
after.
2. Check the water inlet filter of debris. Clean out
the filter as necessary.
3. Check the unit for water leaks. Any leak in the
inlet garden hose, hose connection, gunjet, lance,
or nozzle will allow air to get into the pressure
washer pump and cause malfunction and damage.
Leaks will also cause the pressure switch to cycle,
confusing the auto on/off switch. Fix any leaks
immediately.
FREEZE PROTECTION
Pressure washers equipped with the ränzle
pump can be run dry without damage. To protect
your pump from freeze damage, disconnect the
high pressure hose and water hose from the pump
and run the pressure washer for thirty seconds or
until all the water is ejected from the pump. If you
have a hot water pressure washer, or a pressure
washer equipped with a float tank we recommend
the use of antifreeze to protect hot water coil from
freezing. Simply hook up suction hose from inlet
water connection to container of anti-freeze. Run
the unit long enough to fill the coil with the
anti-freeze mixture. The mixture should be full
strength - but no less than 50% solution.
PROBLEM DIAGNOSIS REMEDY
Low Pressure Worn nozzle
Air leak in inlet plumbing
Inlet suction strainer clogged
Worn packing
Inadequate water supply
Fouled or dirty inlet discharge
valves
Leaky discharge hose
Replace nozzle
Disassemble, reseal and
reassemble
Clean and check frequently
Check and replace packing
Check water supply for sufficient
flow and obstructions in inlet
filter
Check and replace valves
Check and replace hose
TRO BLESHOOTING TABLE
6
Dirt Killer Pressure Washer Operator’s Manual Version 1.1 - May 2015

PROBLEM DIAGNOSIS REMEDY
Pump Runs Rough Restricted inlet
Air leaks: air in plumbing
Check for proper size inlet
plumbing
Tighten plumbing; fix leaks;
insure an air tight seal
Make sure high pressure soap
valve is closed
Pump Pulsates Stuck inlet or discharge valve
Inadequate water supply
Clean out foreign material
Replace worn valves
Check water supply for sufficient
flow and obstructions in inlet filter
Slight Water Leakage From
Underneath Pump
Worn packings Install new packings
Packing Failure Scored, damaged or worn
plunger
Overpressure to inlet manifold
Abrasive material in inlet water
Excessive minerals in water
Excessive temperature. or
pressure of inlet water
Replace plungers
Reduce inlet pressure
Install proper filtration
Soften inlet water
Reduce inlet water temperature
and/or pressure
No Water Comes Out Nozzle plugged / clogged
Water hose kinked
Clean or replace nozzle
Un-kink hose
Oil Leak Between Pump Head
and Pump Transmission
Oil seal leaking
Chipped plunger
Replace oil seal
Replace plunger
Oil Leak From Bottom Or Back of
Motor
Shaft seal worn Replace shaft seal
Water in Oil (Milky Color) Worn packing
Water condensation in
transmission housing
Chipped plunger
Change packings
Change oil
Replace plunger and packings
7
Dirt Killer Pressure Washer Operator’s Manual Version 1.1 - May 2015

PROBLEM DIAGNOSIS REMEDY
Motor is Hot Using extension cord that is too
thin or too long
Unloader sticking
Too small nozzle orifice size
Get larger gauge extension cord.
Get a shorter extension cord;
stop using extension cord
Clean or replace unloader
Install proper nozzle
Oil Leak From Transmission
Housing
Drain plug o-ring leaks
Oil sight glass leaks
Replace o-ring or tighten drain
plug
Replace oil sight glass
MOVING AND STORAGE INSTR CTIONS
Store the pressure washer in a heated facility to
prevent freeze damage. Any water remaining in
the hose, hose reel, pump head, float tank or hot
water coil after use that becomes frozen can
cause extensive damage. Run unit with anti-freeze
even if in heated storage. For gas units - run
carburetor dry of gasoline by shutting off the gas
valve while running until the unit shuts down. The
storage procedure should be performed any time
the unit is not going to be used for a period longer
than thirty days.
WARRANTY
Dirt iller Pressure Washers warrants all parts of
your new pressure washer to be free from
manufacturing defects in materials and workman-
ship for a period of one (1) year from the date of
original purchase. Some components may have
longer warranty periods over and above the basic
one-year limited warranty. For example : ränzle
pump manifold (10 years).
Defective parts not subject to normal wear and
tear will be repaired or replaced at our option
during the warranty period.
Exclusions: This warranty does not cover parts
damaged due to normal wear, misapplication,
misuse, or operation at other than recommended
speeds, pressures or temperatures. Any misuse,
abuse, alteration or improper installation or
improper operation will void warranty. Determining
whether a part is to be replaced or repaired is
solely the decision of Dirt iller Pressure Washers.
Parts damaged or worn because of the use of
caustic liquids or by operation in abrasive or
corrosive environments or under conditions
causing pump cavitation are not warranted.
Failure to follow recommended operating and
maintenance procedures or failure to use
authorized ränzle parts also voids warranty.
Products and parts returned, prepaid to our factory
or to a Dirt iller authorized service center, will be
inspected repaired or replaced free of charge if
found to be defective and subject to warranty.
There are no warranties that extend beyond the
description on the face hereof. This warranty
applies only to the original owner and is not
transferable. Under no circumstances shall Dirt
iller Pressure Washers bear a responsibility for
loss of the unit, loss of time or rental,
inconvenience, commercial or consequential
damages.
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Dirt Killer Pressure Washer Operator’s Manual Version 1.1 - May 2015
valve cap pump head y strainer bolt torque pump oil
capacity
AP PUMP 13 mm 6 mm 20 mm
wrench allen wrench wrench 225 in lbs. .5 quarts
APG PUMP 19 mm 6 mm 20 mm
wrench allen wrench wrench 225 in lbs. .5 quarts
AQ PUMP 22 mm 10 mm 20 mm 250 in lbs. (engine mount) 1.0 quarts
wrench allen wrench wrench 300 in lbs. (pump manifold)
AZ PUMP 13 mm 6 mm NA 225 in lbs. .3 quarts
wrench allen wrench
TOOL CHART