ESS MaxCharge User manual

Electrostatic
Spraying Systems
Owner’s Manual
ESS MaxCharge™ Spraygun
Owner’s Manual
ESS MaxCharge™ Spraygun

OWNER’S MANUAL
ESS MAXCHARGE™ SPRAYGUN
Electrostatic Spraying Systems, Inc.
62 Morrison St. · Watkinsville, GA 30677-2749
CE certication applied for
Copyright © 2009, Electrostatic Spraying Systems, Inc. – All Rights Reserved
This manual last updated November 23, 2009

i
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
CONGRATULATIONS!
You have just purchased one of the most advanced spraying systems
on the market today. Electrostatic Spraying Systems, Inc.1(ESS) is
committed to providing you with powerful spraying systems that are
easy to operate and maintain.
The products of ESS are the result of the eorts and creativity of many
people. In addition to input from engineering, marketing and manufac-
turing personnel, suggestions from our customers have been imple-
mented into the design of our equipment. We would like to hear your
ideas also! If you have any suggestions or comments regarding the
products or service of ESS write or call us at:
Electrostatic Spraying Systems, Inc.
62 Morrison St.
Watkinsville, Georgia 30677-2749
Phone: [phone]
1-800-213-0518
Fax: [phone]
[e-mail]
Please take time to read this manual before operating your new ESS
Spraygun. The manual contains important instructions for the safe
operation of this equipment. It also includes helpful suggestions to
maximize productive use of the Spraygun. Essential cleaning
instructions should be followed to maintain your sprayer at peak
eciency. Please carefully read and follow all instructions for your own
safety and the safety of others around you.
Thank you!
We appreciate your business and are proud that you have selected an
ESS sprayer for your operation.
Your new spraygun has been thoroughly tested and calibrated at the
factory. If you have any problems with it, please get in touch with us
immediately. We will be glad to answer any questions you have
concerning our equipment or service. ESS intends to support its
customers with ecient, helpful and friendly service. We appreciate
your business and sincerely hope that Electrostatic Spraying Systems,
Inc. can meet your present and future spraying equipment needs.
For your personal records
Please record the model
and serial numbers of your
new sprayer here.
Spraygun
______________________
Model #
______________________
Serial #
______________________
Spraygun serial number
______________________
Date of purchase.
Brandon Wells
Primary Engineer,
SC-EB with Spraygun.
1 ESS MaxCharge Spraygun, MaxCharge™, and the ESS logo are copyrights or registered
trademarks of Electrostatic Spraying Systems, Inc.

ii
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Notes

iii
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
TABLE OF CONTENTS
Overview of the ESS Spraygun Air-assisted Electrostatic Sprayer..... 1
Safe operation of the Spraygun ..................................................................... 2
Operator’s responsibility........................................................................... 2
Safety precautions ...................................................................................... 2
Chemical safety precautions................................................................... 2
About the low-voltage system of the MaxCharge Spraygun ............. 3
Features of the Spraygun ................................................................................. 5
Operating Instructions ...................................................................................... 4
After spraying ............................................................................................... 4
Spraygun Maintenance Schedule ................................................................. 4
REFERENCE SECTION
Quick connects..................................................................................................... 5
Spraygun ................................................................................................................ 6
Air lter............................................................................................................ 6
Trigger ............................................................................................................. 7
Liquid lter assembly......................................................................................... 8
Nozzle assembly .......................................................................................... 9
Pre-spray check..................................................................................................10
Post-spray check................................................................................................10
The batteries .......................................................................................................11
Yearly spraygun service...................................................................................12
Spraying with your ESS sprayer....................................................................13
Siphoning.............................................................................................................14
Alternate sprayer guns ....................................................................................15
Spraying with optional sprayguns ..............................................................15
A note about operating temperatures ......................................................16
Trouble-Shooting Guide.................................................................................16
Spraygun service parts (drawing)................................................................17
Spraygun service parts (key) .........................................................................18
Flow disk chart ...................................................................................................18
ESS Warranty .......................................................................................................19
Warranty card............................................................................................19a
Spraygun repair/Yearly service return form.............................................21
Your Spraygun may appear slightly
dierent than the photographs and
drawings in this manual. We at ESS are
constantly listening to customer input
and we make frequent improvements to
our spraygun designs.

iv
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Notes

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ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Overview of the ESS Spraygun
Air-assisted Electrostatic Sprayer
Air-assisted electrostatic sprayers produce electrically charged spray
drops that are carried to the plant canopy in a low pressure, gentle, air
stream. The heart of the Spraygun is the patented MaxCharge™ nozzle.
Air and liquid enter separately at the rear of the nozzle. Just before
leaving the nozzle, the air hits the liquid stream to make many thou-
sands of tiny spray droplets that pass through the charging ring. An
electrical charge is applied to the spray droplets by the charging ring.
Then the charged spray droplets are blown out of the nozzle and
move into the plant canopy where they are attracted to plant material
by electrostatic forces. The electrostatic charge induced by the Max-
Charge™ nozzle is strong enough to allow the droplets to move in any
direction to cover all plant surfaces, even defying gravity to coat the
underside of leaves and the back side of fruits and vegetables. The re-
sult is uniform spray coverage on hidden areas deep inside of the plant
canopy where other sprayers miss.
The MaxCharge™ nozzle is easy to clean and corrosion-proof. The inte-
rior ceramic outlet resists wear three times better than stainless steel
outlets. These features combine to give the best spray coverage on the
market. This quality product is virtually maintenance-free, and assures
you of savings in the application of chemical.
The comparison of air-assisted electrostatic spraying versus conven-
tional spraying is dramatic. Electrostatically charged droplets are
attracted to plant surfaces.
On Objective
O Objective
Undetermined
ESS SPRAYER CONVENTIONAL SPRAYER
Undetermined On Objective
O Objective
Where Does the Spray Go?
The University of California completed a series of tests to investi-
gate what happens to spray liquid after it leaves the nozzle.
Conclusion: ESS technology places over 4 times the amount of
spray onto the plant surface using ½ the amount of chemicals.
Furthermore, they also reported that ESS sprayers send ⁄ less
chemicals to the ground and into the air. Less chemical used
overall, less waste and less drift than conventional equipment.
Imagine the environmental benet!

2
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
OPERATOR’S RESPONSIBILITY
Read the Owner’s Manual.
It is the responsibility of the user to read the Owner’s Manual, to understand the
safe and correct operating procedures which pertain to the operation of the prod-
uct, and to maintain the product according to the Owner’s Manual. It is the owner’s
responsibility to ensure that all who are using this equipment read this manual.
The user is responsible for inspecting the equipment and for repairing and replacing
damaged or worn parts to prevent damage or excessive wear to other parts. It is the
user’s responsibility to deliver the machine for service or replacement of defective
parts which are covered by the standard warranty.
Lack of attention to safety can result in reduced eciency, accident, personal injury, or
death. Watch for safety hazards and correct deciencies promptly. Use the following safety
precautions as a guide when using this machine.
Safe operation of the Spraygun Sprayer
Read the Owner's Manual. Failure to read the manual is considered a misuse of the equipment.
Use the Spraygun ONLY for its intended use as described in this manual.
Before operating equipment, become familiar with all caution and warning decals axed to the sprayer.
Do not allow a child to operate the Spraygun. Do not allow adults to operate the sprayer without
proper instruction.
Keep the area of operation clear of all persons and animals.
Do not apply chemicals when weather conditions favor drift from treated areas.
Turn o the Spraygun when leaving it unattended.
Store Spraygun in a dry place. Do not expose to freezing temperatures.
CHEMICAL SAFETY PRECAUTIONS
Read and follow all instructions on the chemical or pesticide manufacturer’s label.
Use protective clothing, eye protection and gloves when mixing chemicals and while spraying with
the Spraygun.
Always use a cartridge respirator, protective clothing and eye protection when spraying with the
Spraygun
Follow the chemical manufacturer’s recommendations in handling, mixing, applying, storing and
disposing of chemicals.
Be aware of decontamination methods in case a person, clothing, or equipment is accidentally
sprayed.
Be aware of poisoning symptoms and know the appropriate rst aid.
Know the length of time needed to pass before allowing people and pets to go back into the
sprayed area.
SAFETY PRECAUTIONS

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ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
About the low-voltage system of the MaxCharge Spraygun
For operator safety, the MaxCharge spraygun is powered by a low-volt-
age power supply. The rechargeable 9-volt batteries are in the handle
of the Spraygun. The electrostatic charge imparted to the spray is not
strong enough to harm people. Some people report feeling a “tingle”
or a slight stinging sensation when the spray from the nozzle falls on
their bare skin.
Location of 9-volt rechargeable
battery pack in the handle of the
spraygun.
9v

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ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Operating Instructions
After spraying:
1. Disengage trigger.
2. Turn engine o.
3. Disconnect air and liquid spraygun quick connects.
4. Disassemble liquid lter assembly; set aside.
5. Put liquid quick connect plug (which is still threaded in
1/8 inch NPT body) into liquid quick connect socket;
water will begin to run out of quick connect plug;
allow 4 liters (1 gallon) to run through to clean lines.
6. Unplug liquid quick connect plug from liquid quick
connect socket to stop ow of liquid.
7. Clean liquid lter assembly.
8. Reassemble liquid lter assembly.
9. Reconnect quick connects.
10. Turn engine on.
11. Engage trigger and allow remaining liter (approximately
1 quart) of water to run through to clean spraygun; allow
air to ow for 30 seconds more to reduce possibility of
corrosion.
12. Turn engine o.
13. Disconnect spraygun quick connects.
14. Disconnect the air hose from the air compressor.
15. Apply silicone spray or similar lubricating oil to all
quick connects.
16. Clean the nozzle assembly.
Sil-Glyde is an excellent silicone-based
protective lubricant. You may purchase
it directly from ESS. S/N # 3174
** Whichever comes rst
Spraygun Maintenance Schedule
Please observe the recommended maintenance schedule for your Spraygun in order to preserve spray
quality and the working life of the unit. If you use heavy wettable powders to spray or if you operate the
Spraygun in a dusty environment, you may need to clean liquid and air lters more often than these rec-
ommendations. Visually inspect the nozzle and trigger assembly often and clean as necessary.
Clean the liquid lter assembly After every spray application
Clean the nozzle When spray pattern is dierent than when the
Spraygun was new
Recharge batteries in spraygun When charging indicator does not light during
operation (about every 8 operational hours)**
Replace batteries in spraygun When batteries no longer hold a sucient
charge to complete a ten-hour work session
or show other signs of battery deterioration
All operators must read this Owner’s Manual completely and thoroughly
before operating the Spraygun. They must be familiar with all operating
instructions and safety precautions.

5
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
REFERENCE SECTION
Quick connects
There are four sets of quick connects (plug and socket) on the sprayer:
Compressor (air) outlet
spraygun air inlet
spraygun liquid inlet
To disconnect the quick connects:
1. Slide the sleeve on the quick connect socket up.
2. While holding the sleeve up, pull the socket o the quick
connect plug.
To connect the quick connects:
1. Slide the sleeve of the quick connect socket up.
2. While holding the sleeve up, push the socket onto the quick
connect plug.
3. Release the sleeve.
4. Pull on the socket body to ensure that it is properly seated
and cannot be pulled o the plug when the sleeve is down.
The air connection
The end of the air line hose connects to the air leader of the spraygun.
The air leader of the spraygun is below the liquid leader and is easily
recognizable because its connector is larger than the liquid connector
– it is not possible to connect the air hose to the liquid leader. The air
line hose is red.
The liquid connection
The liquid line is gray and only long enough to allow the user to move
freely with the spraygun.

6
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Spraygun
The Spraygun is held by the operator during spraying. Activation of the
trigger causes liquid to spray. The Spraygun has the follow-
ing user-serviceable parts: the air lter, the liquid lter assembly, the
nozzle assembly, and the batteries. Except for the batteries, which are
accessed by removing the battery cover, nothing inside the Spraygun
shell is user-serviceable. Do not open the spraygun shell; doing
so will void the warranty on the spraygun.
Air filter
Note: Sprayguns manufactured after March 2009 do not require
an air lter on the Spraygun air leader.
For units manufactured before March 2009, there is an in-line air
lter located outside the base of the Spraygun in the air hose. It lters
dirt out of the air lines. It’s easy to tell the Air Filter from the Liquid
Filter Assembly because the Air Filter is in a silver-colored casing.
Replacement parts for the air lter assembly are available as a kit.
The kit includes a lter, and large and small o-rings.
Order using ESS part number 231.
NOTE
The Spraygun
To clean the air lter:
1. Unthread the casing from the cap using a ¾” wrench on
both parts. Be careful not to lose the spring or the air lter
inside of the casing.
2. Check inside each part for debris. Clean any dirt out with
compressed air or warm, soapy water.
3. Reassemble the air lter, making sure to put it together as
shown above.
Casing
Filter Element
Cap O-Ring
Cap
Filter O-Ring
Spring The Air Filter Assembly
Liquid Filter
Air Filter
Battery
Housing
Trigger
Lock
Brass Bolt
Trigger
Charging Indicator
Nozzle

7
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Trigger
The trigger turns the spray on and o. It can be continuously held for
operation or it can be locked in place.
Brass Bolt
Pull Trigger Lock
forward to engage
Depress Trigger
to spray
To engage/disengage the trigger:
1. Depress the trigger up towards the body of the spraygun
to start spraying.
2. To keep spraying, either keep holding the trigger or lock it
in place by pulling up the lock and hooking the trigger.
3. To stop spraying when the trigger is not locked, let go of
the trigger.
To clean the trigger:
1. Unthread the brass bolt on the top of the spraygun with a
⁄” socket wrench. Be careful not to lose the spring, plunger,
copper washer, and small brass bushing inside the trigger.
Note how they t inside so they may be replaced properly.
2. Check inside the trigger for blockage. Clean out any debris
with compressed air or warm, soapy water.
3. Replace the spring and plunger; rethread the brass bolt into
the top of the spraygun until tight.

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ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Liquid filter assembly
The liquid lter assembly is located outside the base of the spraygun.
It is composed of these parts: a ⁄” NPT body (Item 12), a strainer
(Item 11), a ow disk (Item 10), an adapter (Item 9) and a cap (Item 8).
The strainer is the active ltering element in the volume of liquid that
ows through the line. There is an extra ow disk and an extra strainer
in the Parts Kit in case the originals are lost or damaged.
To disassemble, clean and reassemble the liquid
lter (see labeled drawing above):
1. Using a ⁄” wrench on the cap (Item 8) and an ⁄” wrench
on the ⁄” NPT body (Item 12), unthread them.
Note: When you disassemble the liquid lter assembly, notice
how the parts t together in order to reassemble them
properly. Be careful not to lose any parts, particularly the
ow disk (Item 10) which is inside the cap. The sprayer will not
function correctly without the ow disk.
2. Remove the strainer (Item 11) from the ⁄”NPT body.
3. If the ⁄” NPT body contains residue, clean it with compressed
air or clean water.
4. Clean the strainer with compressed air or clean water. If
residue still remains in the 50 mesh screen, disassemble the
strainer. Unscrew the top brass part from the bottom brass
part. The 50 mesh screen slides o the brass body and can
be cleaned with compressed air or clean water. If residue
still remains, soak the 50 mesh screen and screw the top
brass part back on the lower brass part.
5. If the ow disk is still in the cap, remove it. Check the
aperture of the ow disk for blockage. If there is any, clean
it with compressed air or water. Replace the ow disk so
that the numbers on the disk face the strainer.
6. Replace the strainer in the ⁄” NPT body.
7. Rethread the ⁄” NPT body and the cap.
Liquid Filter Assembly
⁄” NPT Body (Item 12)
Strainer (Item 11)
Flow Disk (Item 10)
Adapter (Item 9)
Cap (Item 8)

9
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Nozzle assembly
It is very important to follow all the maintenance
and cleaning procedures to ensure that the electro-
static sprayer will function properly. Although the
MaxCharge™ nozzle will outperform all electrostatic
spray technology on the market, regular cleaning
will ensure peak operating performance.
The nozzle assembly is located at the end of the
spraygun wand. It is composed of a nozzle body,
internal o-ring, Teon ring, cover, external o-ring,
and a hood (see labeled drawing at right).
To access the nozzle components, just unscrew the
nozzle cover by hand.
Cleaning the spraygun
Always rinse the spraygun out with clean soapy
water after every day’s spraying. That is the most
important thing you can do to ensure trouble free
operation of your MaxCharge spraygun. By cleaning
after each and every working day you will avoid the
long-term chemical buildup that eventually causes
clogs, poor spray patterns and shortens nozzle life.
Establish maintenance intervals to disassemble and
clean the nozzle. Your nozzle maintenance schedule
will vary depending on the types of chemicals used
and adherence to pre- and post-spray checks. In
general it is sucient to thoroughly clean nozzles
every 50 hours. If heavy loads of wettable powers
are used, the cleaning schedule should be sooner.
To clean the nozzle assembly
1. Slide the hood over the nozzle cover.
2. Unscrew the cover from the nozzle base and remove the Teon ring. Clean any debris from
around the nozzle tip.
Note: There is a small o-ring in the nozzle around the base of the tip, take care that it doesn’t fall
o. If it does, clean it and press back into place. Also, take care not to damage the nozzle tip when
the cover is removed.
3. Soak the ring, cover, and hood in a mild detergent solution. Use a small brush (soft or mild
bristle) to clean the inside of the cover and the hole through it. Also, be sure to clean the hood.
It is important to clean inside the hood and the two cavities. Rinse thoroughly.
4. Scrub the nozzle base with the detergent solution using a soft bristle brush. Clean the ceramic
outlet. Be sure to thoroughly clean the base cavity and take care not to damage the nozzle tip.
Rinse and make sure the small o-ring is in place.
5. Reassemble nozzle by placing the Teon ring on the base and screwing the cover on hand
tight. Next, slide the hood over the nozzle and seat it securely against the external o-ring.
Wipe clean the exterior of all hoses and ttings connected to the nozzle.
The electrode cover should be hand tight. Never use pliers or other tools to tighten it.
The insulating ring should be loose.
NOTE There will be a drip eect from the nozzle. The drip results from the accumulation of tiny electrostatically
charged droplets wrapping back and coating the spraygun nozzle.

10
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
You may wish to purchase Nutra-Sol Tank Cleaner from ESS
(S/N# 1566), which cuts hard water scale and chemical deposits from
the electrode and internal component of the spraygun. The regular use
of Nutra-Sol will keep your equipment operating at peak performance.
The recommended mixing ratio is 4 ounces in 12.5 gallons of water
(113 grams in 47 liters of water).
Pre-spray check
I. Inspect Nozzles
Check nozzle cover to make sure it is on hand tight (do not
over tighten or use a wrench). Make sure the hood is seated
rmly to the nozzle base and against the external o-ring.
II. Preparing the Tank Mix
If you will be spraying wettable powders it is a good idea to
use a compatibility agent with the water and tank mix.
Compatibility agents are chemicals mixed with the water
that make mixing easier and keep heavy concentrations
uniformly in suspension. Some brand name additives are
COMPLIMENT™, UNITE®, and BALANCE™. Check with your
local chemical supplier for others that are available.
Post-spray check
After each spray it is essential that hoses and spraygun be
ushed with clean soapy water. This will help prevent
chemical build-up that can clog lines and nozzles. Also, it is
recommended that the nozzle exterior (black portion of
nozzle) and nozzle hoods be cleaned with soapy water at this
time.
ESS recommends the use of
NUTRA-SOL cleaner which
can be purchased from ESS.
Order S/N#1566.

11
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Batteries
The nozzle charging operates on two 9-volt rechargeable batteries
which are located in the base of the spraygun. In average conditions,
the batteries will last 10 to15 hours of operation on a charge. They
should be recharged when the charging indicator on top of the spray-
gun shell doesn’t glow when air is going through the spraygun.
After approximately 800 to 1000 hours of service the battery pack will
no longer be able to hold an adequate charge and will need to be
replaced. Replace with nickel-hydride rechargeable batteries.
Order the spraygun’s replacement battery pack from ESS.
To change the batteries:
1. Unscrew the two 6-32 x ½”Phillips head machine screws
which hold the battery cover in place.
2. While holding the leads in one hand, gently disconnect the
batteries from the leads. Be careful not to tear the leads o
the wires or to tear the lead wires out of the power supply.
3. Connect the fresh battery pack to the leads.
4. Replace the battery cover. Screw the two 6-32 x ½” Phillips
head machine screws back in to secure the battery cover.
5. Charge the spraygun before attempting to use it.
9v
Remember to charge the
spraygun batteries after
every work session!

12
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Yearly spraygun service
Electrostatic Spraying Systems, Inc. oers and recommends yearly
services on ESS sprayguns. For a nominal fee plus the cost of replace-
ment parts, ESS will thoroughly clean the spraygun, replace any worn
parts and recalibrate the electronics and nozzle. The Yearly Service
also extends the spraygun warranty for another year. Consistent yearly
service by ESS will increase spraying performance and prolong the life
of the gun.
Contact ESS at [phone] to schedule spraygun services. Then
package the spraygun securely since it can be damaged in shipment.
Ship the spraygun in its original packing material if possible. If the orig-
inal packing is not available, wrap the spraygun in bubble wrap, place
it in a strong cardboard box and surround the gun handle with foam
packing. Include a return shipping address and a telephone number.
A form is provided for you at the back of this manual
Ship the spraygun via UPS or Parcel Post to:
Electrostatic Spraying Systems, Inc.
62 Morrison Street
Watkinsville, GA 30677
Yearly service will be conducted within one day of receipt by ESS. If any
parts need to be replaced, the owner will be contacted for authoriza-
tion before replacement. The spraygun will be returned via UPS, COD,
or return shipping costs may be invoiced, contingent upon credit ap-
proval. ESS also accepts Visa, and MasterCard.
As an additional
benet,
Yearly Spraygun
Service "turns back
the clock" – the
original 1-Year
Warranty on the
spraygun is
renewed for
another year!
Yet another good
reason to send
your spraygun in to
ESS for
factory-authorized
service!

13
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Spraying with your ESS sprayer
Note: When using unfamiliar equipment or chemicals, always test on a
small area before treating the entire crop or surface. Do not use a chemical
with the ESS sprayer if the label prohibits use in low-volume sprayers.
Spray Technique
As in spray painting, the goal is to achieve even coverage over the
surface. The ESS MaxCharge spraygun is designed to help you do just
that – by propelling the chemical spray with a gentle air ow, you can
stay well away from the target surface and let the electrostatic
attraction do the rest of the work.
Please note: the spray droplets are very, very ne – about 40 microns
each. If you are used to working with a conventional sprayer, you may
make the mistake of thinking the target is not wet enough because
you do not see large beads of liquid. In fact, after a pass with the
MaxCharge spraygun, the surface of the target should just barely
glisten with moisture. The ne droplets will evaporate quickly.
Here are some tips to achieve the best possible coverage with the
ESS spraygun
1. Before each job, ensure that your sprayer is in good
working order (see the pre-spray checklist on page 10 of
this manual).
2. The optimal spraying distance is at least 18 inches away
from the target surface, however 36 to 48 inches may
provide a more even coating. This gives the ne mist
produced by the MaxCharge nozzle room to develop into a
chaotic cloud that will be attracted to the target surface.
3. Hold the spraygun at right angles to the target surface.
Starting at the highest point and using zig-zag horizontal
strokes about 1 meter (3 ft.) wide, spray down to the
lowest point. Try to have each stroke overlap the previous
stroke by about 50%.
4. You can use vertical strokes if it suits the area better. Just
make sure to work in a methodical pattern and let your
strokes overlap.
5. When moving to the next section, allow it to overlap the
previous section by a few inches. Do not leave a gap.
6. The target surface should just barely glisten with the spray.
Do not over-saturate the surface; if you see runs or puddles
it means you are wasting chemicals. Do check to make sure
the newly-sprayed surface is very slightly damp.
7. Be careful to keep the spraygun barrel as level as possible.
If you allow the nozzle to point down too much, it may drip
occasionally.
8. Unlike spray painting, you don’t have to stop the spray on
every return stroke. Just engage the trigger lock and
concentrate on the regular pattern of spraying.
9. Periodically check to make sure the red light is illuminated
on the spraygun.
Let the MaxCharge™ Spray-
gun do the work!
There’s no need to stick the tip
of the spraygun into the plant
canopy. The electrostatically
charged spray will blow into
the plant canopy and the drop-
lets will even change direction
to nd a dry surface to cling to.

14
ESS MAXCHARGE™ SPRAYGUN OWNER’S MANUAL
Siphoning
The sprayer’s design relies on siphoning of the liquid from the backpack tank. If your spraygun is held
above your head, the liquid will not spray properly. To get the best performance from your sprayer, hold
the spraygun no higher than your shoulder.