Guardian 70ES User manual

GUARDIAN MODEL
70ES
©2023
GUARDIAN ULV EQUIPMENT
PRODUCT OF AZELIS A&ES, INC.

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REMEMBER –YOUR ULV COLD FOG GENERATOR IS ONLY AS SAFE AS
THE OPERATOR!
Hazard control and accident prevention are dependent upon the awareness, concern,
prudence, and proper training of the personnel involved in the operation, transport,
maintenance, and storage of the equipment.
FAILURE TO FOLLOW SAFE OPERATING PRACTICES
MAY RESULT IN INJURY
•Keep all shrouds and guards in place especially the drive belt shroud.
•Before performing any maintenance or service, stop the machine and
disconnect the battery.
•Keep hands, feet and clothing away from power-driven parts.
•Read this manual completely as well as other manuals that come with this
equipment.
•Use ear protection when in close vicinity of equipment when powered up.
•UDo NotUdirect air blast from nozzle directly at any part of your body.
•Use appropriate PPE when loading tanks and performing calibrations.
This manual covers the operating instructions and
illustrations for:
Guardian 70 ES (Std. Fixed Flow ULV Sprayer)

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TABLE OF CONTENTS
MODEL 70ES
Contents
SPECIFICATIONS ......................................................................................................................................5
GENERAL INFORMATION......................................................................................................................... 7
INTRODUCTION...................................................................................................................................7
SERVICING THE ENGINE.......................................................................................................................7
DIRECTION REFERENCE........................................................................................................................7
GENERAL SAFETY INFORMATION.........................................................................................................9
SIGNAL WORDS .................................................................................................................................10
BEFORE OPERATION CONSIDERATIONS..............................................................................................11
OPERATION CONSIDERATIONS...........................................................................................................13
MAINTENANCE AND STORAGE ..............................................................................................................15
FAMILIARIZATION..................................................................................................................................16
OPERATOR CONTROLS.......................................................................................................................16
AIR PRESSURE GAUGE........................................................................................................................16
SPRAY VALVE (Ball Valve)...................................................................................................................17
FORMULATION FILTER AND ORIFICE..................................................................................................17
FORMULATION TANK.........................................................................................................................18
ATOMIZATION NOZZLE......................................................................................................................18
INSTALLATION.......................................................................................................................................19
COLD FOG GENERATOR (ULV SPRAYER) CONTENTS............................................................................19
FACTORY FLUID LEVELS......................................................................................................................19
VEHICLE INSTALLATION .....................................................................................................................20
ENGINE STARTING .............................................................................................................................22
Recoil Start (Pull Start)................................................................................................................... 23
MAINTENANCE......................................................................................................................................24
CHECKING ENGINE CRANKCASE OIL LEVEL .........................................................................................24
CHANGING ENGINE CRANKCASE OIL..................................................................................................24

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ENGINE AIR CLEANER......................................................................................................................... 24
COMPRESSOR LUBRICATION..............................................................................................................25
CLEANING THE MACHINE...................................................................................................................25
BELT TENSION....................................................................................................................................26
CALIBRATION.........................................................................................................................................28
FLOW CALIBRATION DESCRIPTION.....................................................................................................28
FLOW CALIBRATION PROCEDURES.....................................................................................................29
FLOW DIAGRAM....................................................................................................................................31
TROUBLESHOOTING .............................................................................................................................. 31
GUARDIAN 70ES PARTS LIST...................................................................................................................34
GUARDIAN 70ES PARTS LIST...................................................................................................................35
NOTES:.................................................................................................................................................. 36
GUARDIAN ULV 1 LIMITED WARRANTY..................................................................................................37

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SPECIFICATIONS
Guardian 70 ES
Engine
Make Kohler
Model Command PRO CH270
Horse Power 7.0
Engine Type Air cooled, 4-cycle, OHV
Bore & Stroke 70 x 54 mm (2.8 x 2.1 in)
Displacement 208 cc (12.7 cu. In)
Ignition System Transistorized Magneto
Direction of Rotation Counterclockwise facing the PTO shaft
Starting System Recoil
Dry Weight 17.5 kg (38.7 lbs.)
Fuel Unleaded gasoline
Compressor
Make Rolair
Model MK103GA
Dia. Outlet/Inlet 0.50”
Max Performance 1200 RPM
150 PSIG
6.97 ACFM @ 100 PSI
3.0 BHP
Housing Aluminum Case and Cylinder
Flywheel 11” Diameter
Belt Type 1-A
Weight 17.9 lbs.
Oil Capacity 15 oz.
Drive Couple
Method Belt, banded double V
Typical Size A42 (44”)
Nozzle
Model BEET XA series Siphon Round air cap
Port Size 1/8” FNPT
Material Brass Nickel Plate
Nozzle Rotation 360º horizontally, 180º vertically
Capacity
Fuel 0.95 Gallon (3.6 liter)
Formulation 2.5 Gallon (9.46 liter) Natual/Opaque
Flow Control
Pump None
Siphon Orifice Disk

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Orifice Sizes 0.020ø through 0.061ø (9 sizes)
Formulation Filter Inline
Gauges
Pressure 0-150 PSI
Throttle Control
Throttle Manual
Choke Control
Choke Manual
Finish
Type Epoxy Powder Coat chassis
Chassis Material Aluminum
Dimensions
Length 32.2”
Width 15.65”
Height 17”
Weight 90 lbs. (dry)

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GENERAL INFORMATION
INTRODUCTION
Your ULV cold fog generator, known from this point on in this manual as “ULV Sprayer”, was
built to the highest standards in the industry. However, the prolonged life and maximum
efficiency of your sprayer equipment depends on you following the operating, maintenance and
adjustment instructions in this manual.
If additional information or service is needed, contact AZELIS A&ES or if applicable, your
authorized AZELIS A&ES service representative.
We encourage you to contact AZELIS A&ES for repairs. As the designer and manufacturer of
this equipment, AZELIS A&ES professionals are informed and trained on the latest methods to
service this equipment and provide prompt and efficient service in the field or at the service
shop and carry a full line of Guradian ULV service parts and accessories.
THE REPLACEMENT OF ANY PORTION THIS PRODUCT BY OTHER THAN THE
MANUFACTURER’S AUTHORIZED REPLACEMENT PART MAY ADVERSELY AFFECT THE
PERFORMANCE, DURABILITY OR SAFETY OF THIS PRODUCT. USE OF OTHER THAN
AZELIS A&ES/GUARDIAN ULV REPLACEMENT PARTS WILL VOID THE WARRANTY.
For some pictoral clarity, some illustrations and fugures in this manual may show shields,
guards, or shrouds removed. Under no circumstances should your ULV sprayer be operated
without these devices in place.
All information is based upon product information available at the time of approval for printing.
AZELIS A&ES reserves the right to make changes at any time without notice and without
incurring any obligation.
SERVICING THE ENGINE
The detailed servicing and repair of the engine is not covered in this manual; only routine
maintenance and general service instructions are provided. For service of the engine during the
limited warranty period, it is important to contact AZELIS A&ES and if applicable, an authorized
AZELIS A&ES service representative or an authorized servicing agent of the engine
manufacturer. UAny unauthorized work done on the engine during the warranty period may
void your warranty.
DIRECTION REFERENCE
The “Right” and “Left”, “Front” and “Rear” of the machine are refereced from the operator’s
right and left when standing behind the vehicle and facing in the normal forward direction of

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the vehicle. Additionally, the ULV sprayer is designed to be placed in the back of a vehicle with
the engine and blower closest to the rear bumper of the vehicle.

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SAFETY INFORMATION
GENERAL SAFETY INFORMATION
UYour ULV sprayer is only as safe as the operator. Carelessness or operator error may result in
serious bodily injury or death.UHazard control and accident prevention are dependent upon the
awareness, concern, prudence, and proper training of the personnel involved in the operation,
transport, maintenance, and storage of the equipment. UMake sure every operator is properly
trained and throughly familiar with all of the controls before operating this spray equipment.
The owner/user can prevent and is responsible for accidents or injuries occurring to the
themselves, other people or property.
A replacement copy of this manual is available from Azelis A&ES or if applicable, an authorized
dealer or reseller of this equipment at:
Azelis A&ES
Attn: Customer Service Department
100 Colonial Center Pkwy #170
Lake Mary, FL 32746
Or call 1-800-367-0659
Additionally, a copy of this manual can be downloaded from the Azelis A&ES website at
www.azelisaes-us.com by using the model number.
READ THIS OPERATOR’S MANUAL
BEFORE ATTEMPTING TO START
OR USE THIS SPRAYER.

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SIGNAL WORDS
This general symbol means “Attention! Become Alert! Your
Safety is involved!” The symbol is used with the following
signal words to attract your attention to safety messages found
on the decals on the machine and throughout this manual.
The message that follows the symbol contains important information about safety. To avoid
injury and possible death, carefully read the message! Be sure to understand the causes of
possible injury or death.
Signal Word
The Signal word is a distinctive word found on the safety decals on the machine and throughout
this manual that alerts the viewer to the existence and relative degree of the hazard.
The signal word “DANGER” denotes that an extremely
hazardous situation exists on or near the machine that could
result in high probability of death or irreparable injury if proper
precautions are not taken.
The signal word “WARNING” denotes that a hazard exists on or
near the machine that can result in injury or death if proper
precautions are not taken.
The signal word “CAUTION” is a reminder of safety practices on
or near the machine that could result in personal injury if
proper precautions are not taken.
Your safety and the safety of others depend significantly upon your knowledge and
understanding of all correct operating practices and procedures of this machine.

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BEFORE OPERATION CONSIDERATIONS
1. Become familiar with the safe operation of the ULV sprayer and the operator controls.
2. Never allow children to play on or with the machine. Never allow children to ride in a
vehicle sitting next to or on top of this machine.
3. Always wear appropriate clothing while operating, maintaining, servicing or calibrating
this machine. The wearing of such items as safety glasses, aprons, gloves, and safety
shoes is advisable and may be required by some local ordinances or insurance
regulations.
4. Always wear hearing protection. Operating this machine for prolonged periods of time
without hearing protection can cause permanent loss of hearing.
5. Keep the Spray machine and attachments in good operating condition. Keep all shields,
guards, or shrouds in place. If a shield, safety device or decal is defective or damaged,
repair or replace it before operating the machine.
6. Fill the fuel tank with clean, fresh, unleaded gasoline with a minimum octane rating of
87. To avoid personal injury or property damage, use extreme care in handling gasoline.
Gasoline is extremely flammable and the vapors are explosive.
a. Keep flammable objects (cigarettes, matches, etc.), open flames and sparks away
from the fuel tank and fuel container.
b. Use only an approved gasoline container.
c. DO NOT add fuel to a running or hot engine. Allow the engine to cool for several
minutes before adding fuel.
d. Never fuel the machine indoors or in a small enclosed area without ventilation.
e. Never store the sprayer or fuel container where there is an open flame, spark or
pilot light such as on a water heater or other appliance.
f. Never fill containers inside a vehicle or on a truck or trailer bed with a plastic bed
liner. Always place the container on the ground away from your vehicle before
filling.

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g. Keep the nozzle in contact with the rim of fuel tank or container opening at all
times until fueling is complete. We recommend not using a nozzle lock-open
device.
h. If fuel is spilled on clothing, change clothing immediately.
i. Replace gas cap and tighten securely.
7. Fill chemical tank to the indicated full level not to exceed 15 U.S. gallons.
a. Keep fill nozzle securely in the opening at all time while chemical is being
transferred. We recommend not using a nozzle lock-open device.
b. Wear appropriate personal protective equipment while filling chemical tank as
required by the specific label of the product being filled.
c. Ensure chemical tank filling is accomplished in a well ventilated area.
d. Affix an approved label to the chemical tank indicating its contents after filling.
e. Thoroughly clean hands after handling chemical filling equipment.

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OPERATION CONSIDERATIONS
1. DO NOT permit untrained personnel to operate the machine.
2. Before operating this sprayer, familiarize yourself with all sprayer functions and
engine controls. Knowing the location, function and operation of these controls is
important for safe and efficient operation.
3. DO NOT touch the engine muffler or any part of the exhaust system while running;
wait several minutes for the engine and exhaust to cool and check for heat before
doing so.
4. Blower housing and tubing to the nozzle including swivel elbows and nozzle become
very hot during prolonged operation. DO NOT touch any of these areas while
running; wait several minutes allowing these components to cool before touching.
5. DO NOT operate the engine without the blower intake air filter housing being
installed. Debris, cleaning rags or clothing can be sucked into the blower causing
potential damage to the blower or injury to operators.
6. DO NOT direct the air blast from the nozzle at any portion of the body and especially
the face. High volume air can penetrate the skin and cause serious injury even
death. Always point the nozzle in an upward- attitude when sprayer is running and
above head level for those on the ground. It is not recommended for anyone to be
standing above the level of the nozzle when running even if the machine is mounted
securely on a vehicle.
7. NEVER walk directly into the air/chemical blast from the nozzle when insecticide or
any other formula is being atomized.
8. DO NOT direct the air/chemical discharge toward bystanders or allow anyone near
the machine while in operation.

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9. DO NOT run the engine inside a building or a confined area without proper
ventilation. Exhaust fumes are hazardous and contain carbon monoxide which can
cause brain injury and death.
10. DO NOT operate the machine under the influence of alcohol or drugs.
11. Use care when loading or unloading the machine onto a truck or trailer.
12. Do not change the engine governor settings to over-speed the engine. See the
engine operator’s manual for information on engine settings.
13. NEVER leave the machine running unattended.

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MAINTENANCE AND STORAGE
1. Allow only trained personnel to service the ULV spray machine.
2. Park the vehicle or place the machine on level ground for fluid level verification.
3. Never make adjustments to the machine with the engine running unless specifically
instructed to do so. If the engine is running, keep hands feet and clothing away from
moving parts.
4. Stop engine and remove or disconnect spark plug wire(s) to prevent accidental
starting of the engine when servicing or adjusting the machine. Wait for all
movement to stop before adjusting, cleaning or repairing.
5. Keep all nuts, bolts and screws tight, to ensure the machine is in safe working
condition.
6. The engine must be shut off before checking the oil or adding oil to the crankcase.
7. Let the engine cool before storing.
8. DO NOT store the machine near an open flame.
9. Shut off fuel while storing or transporting.
10. To shut off engine for prolonged periods of time or seasonal storage, drain the fuel
tank, start the engine and let the engine run out of fuel before storing.

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FAMILIARIZATION
OPERATOR CONTROLS
The standard configuration of the Guardian 70ES incorporates manual controls of the engine
and the spray on/off. Optional electrical remote spray on/off is available by using a 12-volt
electric solenoid valve in place of the manual spray ball valve to control the flow of chemical to
the nozzle. This remote control device plugs into a “cigarette” lighter or accessory port of a
vehicle to provide 12 volts and a simple toggle switch opens the solenoid valve so the operator
can gain more distance between him/her and the machine.
AIR PRESSURE GAUGE
The air pressure gauge has a pressure range from 0-150 psig. When
the engine is running and manual throttle adjusted to the desired
engine RPM, air pressure is most often the overriding factor in
assuring correct atomization of a given flow rate. Air pressure is
measured through the copper tubing from the air compressor
discharge port.

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SPRAY VALVE (Ball Valve)
The Guardian 70ES unlike its larger stable mates in the Guardian
line, does not utilize an insecticide pump to meter a chemical
formulation to the atomization nozzle but rather pulls or draws a
siphon from this specially designed nozzle. The nickel plated brass
ball valve is equipped with Viton® elastomeric seals and a stainless
steel ball for trouble free operation. The manual ball valve is a 2-
position (open/close) valve that when closed blocks the flow path
from the formulation tank to the atomization nozzle. When opened, the strong vacuum effect
from the siphoning nozzle pulls liquid into the nozzle for atomization.
A remote spray on/off option is available for the Guardian 70ES in the form
of a 12-volt electric solenoid valve which is installed in place of the manual
valve. Power to support this remote spray on/off option is drawn from a
12-volt source such as an accessory port or “cigarette lighter” port found
on many utility vehicles. A length of cable is supplied to the valve allowing
a driver to activate spray without having to physically be at the machine
and place the ball valve in the closed position. If this option is of interest to
you, contact your dealer, distributor or sales associate to find out more. To
install, first remove the ball valve from the nozzle. Then, using the brass
nipple fitting and some Teflon tape, attach the spray solenoid to the nozzle. Then connect the
switch spade terminals to the spray solenoid. It is not polar, so the spade terminals can go
either way.
FORMULATION FILTER AND ORIFICE
The chemical or formulation is drawn through this fitting to the
nozzle. Inside this fitting resides both an inline screen filter as well
as an orifice disk. The purpose of the orifice disk to limit the amount
of flow to the nozzle based on the product label and desired droplet
size. Refer to the table provided in this manual to select the
appropriate orifice disk for desired product and atomization
performance.

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FORMULATION TANK
2.5 U.S. gallons (9.46 liters) is the capacity of the formulation tank
installed on this ULV sprayer. The opaque high density
polyethylene (HDPE) tank is suitable for all known products used in
Vector control. Additionally, the formulation tank is supplied
standard with a 2 inch threaded cap. A slot in the chassis
aluminum end panel allows for visual reference to volume
remaining.
Note: Use only products specifically intended for ULV use as outlined on the product label.
A “Ready-To-Use” 2.5 gallon jug may be used in place of the supplied
tank. Included with this machine is a customized 63mm cap for use
with 2.5 gallon jugs. This cap is fitted with a draw tube and
compression style coupling and vent. Simply replace the existing cap of
your “RTU” jug with the new Guardian cap and place the jug in the
same location as standard tank and strap securely in place. Auxiliary
holes have been added to allow the end panel of the “tank basket” to
be moved inward to stabilize the position of an RTU jug. Finally,
connect the line from the orifice assembly to the bulkhead connector
of the Guardian RTU cap.
ATOMIZATION NOZZLE
The atomization nozzle is designed to efficiently and
effectively atomize various oil and water based
formulations to micron diameter droplet sizes as
outlined on the specific formulation label. Keep the
nozzle clean and free from dings and dents to maintain
perfect concentric alignment of the air and fluid ports.
Formulation is fed through the rear of the nozzle body
by way of the ball valve. Compressed air is introduced
into the nozzle from the bottom of the aluminum
nozzle body. The nozzle swivels 360° horizontally and
approximately 300° vertically to position the nozzle at
the desired attitude. The most common nozzle
position is pointed directly toward the back with
respect to the travel direction of a vehicle with an
upward 45° degree attitude.

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INSTALLATION
COLD FOG GENERATOR (ULV SPRAYER) CONTENTS
FACTORY FLUID LEVELS
When you receive your Guardian ULV sprayer, the fluid levels will be as follows:
Engine oil full
Blower oil full
Fuel tank empty
Formulation tank empty
Each machine is fully tested functionally and appropriate fluid levels are services beforehand.

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VEHICLE INSTALLATION
1. The ULV sprayer is packaged in a double-walled corrugated box that protects the machine
from damage in shipping and storage. Open the box and remove the sprayer from the top.
You may elect to retain the shipping container for storage purposes.
2. The Guardian 70ES arrives standard with rubber vibration dampening feet on each bottom
corner to provide a stable platform during spray operations. This lightweight machine is
designed to be portable either by hand lifting (suggest two persons) into a support vehicle
such as a side-by-side UTV, golf cart, or maintenance vehicle or by mounting in a more rigid
and semi-permanent fashion to a 2 or 4-wheel drive ATV. In this latter use, remove the
rubber vibration dampening feet and mount the ULV sprayer to the desired machine. The
end user must provide mounting hardware when mounting in a more permanent way.
3. Place the sprayer onto the vehicle or trailer with the engine and blower facing the rear
of the vehicle for ease of reaching the recoil starter pull. Make sure the engine exhaust
has ample area in which to discharge and heat from the exhaust can dissipate without
causing damage to surrounding surfaces, use straps to secure if desired.
4. Secure Attach the nozzle post assembly to the vertical bracket with hardware supplied
and secure post in place. Attach the air hose from the nozzle assembly to the discharge
port of the air compressor.
5. Loosen the 2 knobs on the Nozzle swivel and adjust
the nozzle vertically to the desired attitude. Loosen
the single bolt below the nozzle swivel and adjust
the nozzle horizontally to the desired position then
retighten.
Note: AZELIS A&ES is not responsible for mounting and securing the Guardian ULV
sprayers onto a vehicle; it is the responsibility of the owner or end user to do so. AZELIS
A&ES will only make recommendations on how to accomplish the placement and
securing of this unit.
Nozzle Adjustment