RainMaker 708910 User manual

Please read this manual for instructions and precautions
before using this product. Keep this manual and the
receipt in a safe place for future reference!
18 VOLT LITHIUM ION BACKPACK SPRAYER-4 GALLON
Product# 708910
Front
View
Back
View
ASSEMBLY AND OPERATING
INSTRUCTION MANUAL
Scan to learn more about Rainmaker® multi-purpose
sprayers for home and garden use or visit:
www.RainmakerSprayers.com
RAINMAKER® SPRAYER PRODUCTS
In addition to the Pressure Pump Sprayers, Rainmaker® multi-pur-
pose sprayers are available in a variety of other sizes for home and
garden use:
32 OZ AND 64 OZ
HAND SPRAYERS
½ GALLON, 1 GALLON, 2 GALLON AND 3 GALLON PUMP SPRAYERS
4 GALLON AND 5 GALLON
BACKPACK SPRAYERS
PRODUCT #
708502
PRODUCT #
708908
PRODUCT #
708906
PRODUCT #
708904
PRODUCT #
708898
PRODUCT #
708902
PRODUCT #
708900
PRODUCT #
708500
11-22-2016 LS
www.RainmakerSprayers.com

112
Congratulations on purchasing your new Rainmaker® 18 Volt Lithium
Ion Battery Sprayer - 4 Gallon. For your safety please ensure
you read this manual before operation. Failure to do so can result
in serious injury.
SAFETY INFORMATION
For your safety, follow these precautions when using your Rainmaker
18 Volt Lithium Ion Backpack Sprayer - 4 Gallon (Part # 708910)
Important Safety Guidelines:
PLEASE READ THIS MANUAL COMPLETELY AND FULLY UNDERSTAND
ALL INSTRUCTIONS AND WARNINGS BEFORE OPERATING THIS UNIT.
FAILURE TO COMPLY WITH THE PROCEDURES AND SAFEGUARDS
MAY RESULT IN SERIOUS INJURY OR PROPERTY DAMAGE! SAVE THIS
MANUAL FOR FUTURE REFERENCE AND KEEP IN A SAFE LOCATION.
WARNING!
1. The battery charger supplied is intended to be used with the
included lithium-ion battery included with this sprayer. DO NOT
use any other charger to recharge the lithium-ion battery pack.
2. During storage, make sure battery is charged at least once
every 3 months to protect battery from damage
3. Charge battery in dry areas only.
4. Plug charger into grounded power source that complies with
the electrical specifications. Avoid using an extension cord.
5. DO NOT operate charger with damaged power cord.
6. DO NOT use if equipment is damaged
7. DO NOT try to open or modify lithium ion battery pack, doing
so can cause serious injury or damage.
8. Before operating sprayer always use approved eye protection,
masks, gloves, clothing and any necessary safety gear.
OUNCES CUPS PINTS QUARTS GALLONS LITERS(APX)
4 OZ 1/2 C 1/4 PT 1/8 QT 1/32 GAL 1/8 L
8 OZ 1 C 1/2 PT 1/4 QT 1/16 GAL 1/4 L
16 OZ 2 C 1 PT 1/2 QT 1/8 GAL 1/2 L
32
OZ
4
C
2
PT
1
QT
1/4
GAL
1
L
64
OZ
8
C
4
PT
2
QT
1/2
GAL
2
L
128
OZ
16
C
8
PT
4
QT
1
GAL
4
L
256
OZ
32
C
16
PT
8
QT
2
GAL
8
L
384
OZ
48
C
24
PT
12
QT
3
GAL
11
L
512
OZ
64
C
32
PT
16
QT
4
GAL
16
L
640
OZ
80
C
40
PT
20
QT
5
GAL
20
L
LIQUID VOLUME CONVERSION CHART

112
Congratulations on purchasing your new Rainmaker® 18 Volt Lithium
Ion Battery Sprayer - 4 Gallon. For your safety please ensure
you read this manual before operation. Failure to do so can result
in serious injury.
SAFETY INFORMATION
For your safety, follow these precautions when using your Rainmaker
18 Volt Lithium Ion Backpack Sprayer - 4 Gallon (Part # 708910)
Important Safety Guidelines:
PLEASE READ THIS MANUAL COMPLETELY AND FULLY UNDERSTAND
ALL INSTRUCTIONS AND WARNINGS BEFORE OPERATING THIS UNIT.
FAILURE TO COMPLY WITH THE PROCEDURES AND SAFEGUARDS
MAY RESULT IN SERIOUS INJURY OR PROPERTY DAMAGE! SAVE THIS
MANUAL FOR FUTURE REFERENCE AND KEEP IN A SAFE LOCATION.
WARNING!
1. The battery charger supplied is intended to be used with the
included lithium-ion battery included with this sprayer. DO NOT
use any other charger to recharge the lithium-ion battery pack.
2. During storage, make sure battery is charged at least once
every 3 months to protect battery from damage
3. Charge battery in dry areas only.
4. Plug charger into grounded power source that complies with
the electrical specifications. Avoid using an extension cord.
5. DO NOT operate charger with damaged power cord.
6. DO NOT use if equipment is damaged
7. DO NOT try to open or modify lithium ion battery pack, doing
so can cause serious injury or damage.
8. Before operating sprayer always use approved eye protection,
masks, gloves, clothing and any necessary safety gear.
OUNCES CUPS PINTS QUARTS GALLONS LITERS(APX)
4 OZ 1/2 C 1/4 PT 1/8 QT 1/32 GAL 1/8 L
8 OZ 1 C 1/2 PT 1/4 QT 1/16 GAL 1/4 L
16 OZ 2 C 1 PT 1/2 QT 1/8 GAL 1/2 L
32
OZ
4
C
2
PT
1
QT
1/4
GAL
1
L
64
OZ
8
C
4
PT
2
QT
1/2
GAL
2
L
128
OZ
16
C
8
PT
4
QT
1
GAL
4
L
256
OZ
32
C
16
PT
8
QT
2
GAL
8
L
384
OZ
48
C
24
PT
12
QT
3
GAL
11
L
512
OZ
64
C
32
PT
16
QT
4
GAL
16
L
640
OZ
80
C
40
PT
20
QT
5
GAL
20
L
LIQUID VOLUME CONVERSION CHART
10 3
9. Follow all manufacturer instruction and safety instruction when
dealing with all pesticides, herbicides, fertilizer and any other
liquid chemicals.
10. Use only clean water and ensure all contents in the sprayer are
fully dissolved before spraying. Failure to do so may result in
damage to sprayer or sprayer pump.
11. DO NOT use with flammable liquids, gases and powders.
12. DO NOT operate the sprayer in explosive atmospheres, such as
in the presence of flammable liquids, gases or powders.
13. Keep away from children, bystanders and animals.
PARTS LIST
PART DESCRIPTION QUANTITY
Rainmaker lithium ion battery backpack sprayer - 4 gallon (a) 1
Shoulder straps (b) 2
Rainmaker lithium ion charging station (c) 1
Rainmaker lithium ion battery pack (d) 1
Adjustable conical spray nozzle (e) 1
Fan spray nozzle (f) 1
3-way misting nozzle (g) 1
Parts bag (h) 1
22.5” spray lance with quick connect (i) 1
Sprayer handle (j) 1
a
c
b
e
f
g
d
SPRAY PATTERNS
Adjustable Conical Spray Nozzle Attachment
3 Nozzled Misting Attachment
Fan Style Spray Nozzle Attachment
h
ij

4 9
WARNINGS, CONTINUED
• DO NOT use battery for any other products.
• DO NOT let battery get wet. Keep dry.
• Please follow all Federal and State Laws when disposing of lithium
ion batteries. DO NOT throw in trash or landfills.
TECHNICAL SPECIFICATIONS
Rated voltage: DC 18 V
Battery type: Lithium-ion
Lithium-ion battery capacity: 2150 mAH
Charger/adaptor: 120 VAC , 60 Hz 0.6 A
Charger/output voltage: 21 VDC, 2200 mA
Battery charging time: 1 to 1.5 Hrs.
Working pressure: 58 - 65 psi
Tank capacity: 4 Gallons (15 Liters)
Flow rate: 0.48 Gal/min
SPRAY PATTERNS
LANCE AND HANDLE ASSEMBLY
1. Locate the lance, handle and end of sprayer tubing.
2. Insert tubing into bottom end of handle.
3. Thread plastic nut onto the bottom end of the handle.
4. Insert lance into top end of handle.
5. Thread plastic nut onto the top end of the handle.
6. Your sprayer lance and handle are now assembled and ready for
use.

8 5
STORAGE
1. Ensure that all liquids are removed from the sprayer.
2. Store sprayer in an indoor area such as a workshop or a storage
shed.
3. Follow all storage requirements for lithium ion battery.
(See Battery Maintenance And Storage)
BATTERY MAINTENANCE AND STORAGE
Please follow all operating requirements.
1. Charge battery after each use. This can help prolong the life of the
battery.
2. When storing make sure battery pack is removed from the sprayer
and placed in dry location away from children.
3. When storing the battery for extended periods of time ensure bat-
tery is around ½ charge. Keep battery in a cool dry place. Always
remove battery from sprayer when not in use for extended periods
of time.
4. Battery should be charged every 1-3 months to ensure longer life
of battery.
WARNINGS
• Battery should always be keep away from high heat and pressure.
• DO NOT let children play with battery.
• DO NOT disassemble battery pack or charger. Doing so will void
warranty and can result in serious damage or severe injury.
• Use only the included dedicated charger when charging the bat-
tery. Using other charger docks may result in serious damage or
personal injury.
CHARGING INSTRUCTIONS
*Please charge the battery completely prior to use. *
1. Ensure the sprayer battery charger complies with AC on the
main power supply if you are unsure contact your local dealer
or qualified electrician.
2. Charge your sprayer indoors ONLY.
3. Plug the charging station into
power socket. The indicator
light on the charging station
will show green. (See Figure 1)
4. Slide the battery pack onto the
station. (See Figure 2) Once
battery is seated properly onto
the charger, the indicator light will
turn red. (See Figure 3)
When the light stays green your
battery pack has been fully charged.
(See Figure 4)
*General charging time is about 1 - 1.5 hours.
Figure 1
Figure 4
Figure 2
Figure 3

6 7
SPRAYING
1. To turn on the sprayer simply choose one
of two flow rate settings. “I” for low or
“II” for high. When sprayer is in the
“O” position the sprayer is off. (See Figure 6)
2. Check bottom indicator light. Green light
indicates a charged battery. Red light
indicates battery needs charging.
Helpful Hint: Having a spare battery allows
you to limit down time. When one sprayer is in use, the other can
be charging.
3. Point nozzle in safe direction away from people and animals, and
never spray against adverse wind.
4. Press down on the switch assembly on the handle to begin.
5. Move at a constant speed and direction to avoid over spraying
and/or missing your coverage area.
CLEANING AND MAINTENANCE
CAUTION - DO NOT perform procedures that are not in this manual.
1. Before use, inspect the overall condition of the sprayer. Look for
signs of damaged parts, loose parts, dirt, debris or any other signs
that would affect safe operation.
DO NOT USE DAMAGED EQUIPMENT
2. After use, clean the external surface of the sprayer with a clean,
damp cloth.
3. Flush interior and clean the exterior of the sprayer.
4. Ensure the sprayer wand is cleaned and maintained to avoid clog-
ging or build up.
Figure 6
OPERATION
Before operating sprayer make sure you use approved eye protection,
gloves, masks, clothing and any other necessary safety equipment.
1. Ensure battery has been fully charged prior to first use. Open bat-
tery compartment on the sprayer and slide the battery pack on to
the socket. Close cover.
2. It is recommended to test the sprayer, using clean water, for leaks
in any of the connections prior to adding any solution mix to your
sprayer.
3. The Rainmaker® Sprayer includes 3 sprayer nozzles. Choose the
spray nozzle which best suits your needs. See page 10 for spray
patterns.
a. Adjustable conical spray nozzle attachment
b. Fan style spray nozzle attachment
c. 3 nozzle misting attachment
4. To change spray head, pull down on the
female quick connect coupler and insert
desired sprayer head into the quick connect.
Check the spray nozzle connection is secure.
(See figure 5) It is recommended to run clean
water through the sprayer to test for leaks prior
to adding any solutions.
FILLING YOUR TANK
Unscrew cap. Ensure filter is free from dirt and debris prior to filling.
DO NOT overfill tank. Screw cap on securely.
Figure 5

6 7
SPRAYING
1. To turn on the sprayer simply choose one
of two flow rate settings. “I” for low or
“II” for high. When sprayer is in the
“O” position the sprayer is off. (See Figure 6)
2. Check bottom indicator light. Green light
indicates a charged battery. Red light
indicates battery needs charging.
Helpful Hint: Having a spare battery allows
you to limit down time. When one sprayer is in use, the other can
be charging.
3. Point nozzle in safe direction away from people and animals, and
never spray against adverse wind.
4. Press down on the switch assembly on the handle to begin.
5. Move at a constant speed and direction to avoid over spraying
and/or missing your coverage area.
CLEANING AND MAINTENANCE
CAUTION - DO NOT perform procedures that are not in this manual.
1. Before use, inspect the overall condition of the sprayer. Look for
signs of damaged parts, loose parts, dirt, debris or any other signs
that would affect safe operation.
DO NOT USE DAMAGED EQUIPMENT
2. After use, clean the external surface of the sprayer with a clean,
damp cloth.
3. Flush interior and clean the exterior of the sprayer.
4. Ensure the sprayer wand is cleaned and maintained to avoid clog-
ging or build up.
Figure 6
OPERATION
Before operating sprayer make sure you use approved eye protection,
gloves, masks, clothing and any other necessary safety equipment.
1. Ensure battery has been fully charged prior to first use. Open bat-
tery compartment on the sprayer and slide the battery pack on to
the socket. Close cover.
2. It is recommended to test the sprayer, using clean water, for leaks
in any of the connections prior to adding any solution mix to your
sprayer.
3. The Rainmaker® Sprayer includes 3 sprayer nozzles. Choose the
spray nozzle which best suits your needs. See page 10 for spray
patterns.
a. Adjustable conical spray nozzle attachment
b. Fan style spray nozzle attachment
c. 3 nozzle misting attachment
4. To change spray head, pull down on the
female quick connect coupler and insert
desired sprayer head into the quick connect.
Check the spray nozzle connection is secure.
(See figure 5) It is recommended to run clean
water through the sprayer to test for leaks prior
to adding any solutions.
FILLING YOUR TANK
Unscrew cap. Ensure filter is free from dirt and debris prior to filling.
DO NOT overfill tank. Screw cap on securely.
Figure 5

8 5
STORAGE
1. Ensure that all liquids are removed from the sprayer.
2. Store sprayer in an indoor area such as a workshop or a storage
shed.
3. Follow all storage requirements for lithium ion battery.
(See Battery Maintenance And Storage)
BATTERY MAINTENANCE AND STORAGE
Please follow all operating requirements.
1. Charge battery after each use. This can help prolong the life of the
battery.
2. When storing make sure battery pack is removed from the sprayer
and placed in dry location away from children.
3. When storing the battery for extended periods of time ensure bat-
tery is around ½ charge. Keep battery in a cool dry place. Always
remove battery from sprayer when not in use for extended periods
of time.
4. Battery should be charged every 1-3 months to ensure longer life
of battery.
WARNINGS
• Battery should always be keep away from high heat and pressure.
• DO NOT let children play with battery.
• DO NOT disassemble battery pack or charger. Doing so will void
warranty and can result in serious damage or severe injury.
• Use only the included dedicated charger when charging the bat-
tery. Using other charger docks may result in serious damage or
personal injury.
CHARGING INSTRUCTIONS
*Please charge the battery completely prior to use. *
1. Ensure the sprayer battery charger complies with AC on the
main power supply if you are unsure contact your local dealer
or qualified electrician.
2. Charge your sprayer indoors ONLY.
3. Plug the charging station into
power socket. The indicator
light on the charging station
will show green. (See Figure 1)
4. Slide the battery pack onto the
station. (See Figure 2) Once
battery is seated properly onto
the charger, the indicator light will
turn red. (See Figure 3)
When the light stays green your
battery pack has been fully charged.
(See Figure 4)
*General charging time is about 1 - 1.5 hours.
Figure 1
Figure 4
Figure 2
Figure 3

4
9
WARNINGS, CONTINUED
• DO NOT use battery for any other products.
• DO NOT let battery get wet. Keep dry.
• Please follow all Federal and State Laws when disposing of lithium
ion batteries. DO NOT throw in trash or landfills.
TECHNICAL SPECIFICATIONS
Rated voltage: DC 18 V
Battery type: Lithium-ion
Lithium-ion battery capacity: 2150 mAH
Charger/adaptor: 120 VAC , 60 Hz 0.6 A
Charger/output voltage: 21 VDC, 2200 mA
Battery charging time: 1 to 1.5 Hrs.
Working pressure: 58 - 65 psi
Tank capacity: 4 Gallons (15 Liters)
Flow rate: 0.48 Gal/min
SPRAY PATTERNS
LANCE AND HANDLE ASSEMBLY
1. Locate the lance, handle and end of sprayer tubing.
2. Insert tubing into bottom end of handle.
3. Thread plastic nut onto the bottom end of the handle.
4. Insert lance into top end of handle.
5. Thread plastic nut onto the top end of the handle.
6. Your sprayer lance and handle are now assembled and ready for
use.

112
Congratulations on purchasing your new Rainmaker® 18 Volt Lithium
Ion Battery Sprayer - 4 Gallon. For your safety please ensure
you read this manual before operation. Failure to do so can result
in serious injury.
SAFETY INFORMATION
For your safety, follow these precautions when using your Rainmaker
18 Volt Lithium Ion Backpack Sprayer - 4 Gallon (Part # 708910)
Important Safety Guidelines:
PLEASE READ THIS MANUAL COMPLETELY AND FULLY UNDERSTAND
ALL INSTRUCTIONS AND WARNINGS BEFORE OPERATING THIS UNIT.
FAILURE TO COMPLY WITH THE PROCEDURES AND SAFEGUARDS
MAY RESULT IN SERIOUS INJURY OR PROPERTY DAMAGE! SAVE THIS
MANUAL FOR FUTURE REFERENCE AND KEEP IN A SAFE LOCATION.
WARNING!
1. The battery charger supplied is intended to be used with the
included lithium-ion battery included with this sprayer. DO NOT
use any other charger to recharge the lithium-ion battery pack.
2. During storage, make sure battery is charged at least once
every 3 months to protect battery from damage
3. Charge battery in dry areas only.
4. Plug charger into grounded power source that complies with
the electrical specifications. Avoid using an extension cord.
5. DO NOT operate charger with damaged power cord.
6. DO NOT use if equipment is damaged
7. DO NOT try to open or modify lithium ion battery pack, doing
so can cause serious injury or damage.
8. Before operating sprayer always use approved eye protection,
masks, gloves, clothing and any necessary safety gear.
OUNCES CUPS PINTS QUARTS GALLONS LITERS(APX)
4 OZ 1/2 C 1/4 PT 1/8 QT 1/32 GAL 1/8 L
8 OZ 1 C 1/2 PT 1/4 QT 1/16 GAL 1/4 L
16 OZ 2 C 1 PT 1/2 QT 1/8 GAL 1/2 L
32
OZ
4
C
2
PT
1
QT
1/4
GAL
1
L
64
OZ
8
C
4
PT
2
QT
1/2
GAL
2
L
128
OZ
16
C
8
PT
4
QT
1
GAL
4
L
256
OZ
32
C
16
PT
8
QT
2
GAL
8
L
384
OZ
48
C
24
PT
12
QT
3
GAL
11
L
512
OZ
64
C
32
PT
16
QT
4
GAL
16
L
640
OZ
80
C
40
PT
20
QT
5
GAL
20
L
LIQUID VOLUME CONVERSION CHART
10 3
9. Follow all manufacturer instruction and safety instruction when
dealing with all pesticides, herbicides, fertilizer and any other
liquid chemicals.
10. Use only clean water and ensure all contents in the sprayer are
fully dissolved before spraying. Failure to do so may result in
damage to sprayer or sprayer pump.
11. DO NOT use with flammable liquids, gases and powders.
12. DO NOT operate the sprayer in explosive atmospheres, such as
in the presence of flammable liquids, gases or powders.
13. Keep away from children, bystanders and animals.
PARTS LIST
PART DESCRIPTION QUANTITY
Rainmaker lithium ion battery backpack sprayer - 4 gallon (a) 1
Shoulder straps (b) 2
Rainmaker lithium ion charging station (c) 1
Rainmaker lithium ion battery pack (d) 1
Adjustable conical spray nozzle (e) 1
Fan spray nozzle (f) 1
3-way misting nozzle (g) 1
Parts bag (h) 1
22.5” spray lance with quick connect (i) 1
Sprayer handle (j) 1
a
c
b
e
f
g
d
SPRAY PATTERNS
Adjustable Conical Spray Nozzle Attachment
3 Nozzled Misting Attachment
Fan Style Spray Nozzle Attachment
h
ij

11
2
Congratulations on purchasing your new Rainmaker® 18 Volt Lithium
Ion Battery Sprayer - 4 Gallon. For your safety please ensure
you read this manual before operation. Failure to do so can result
in serious injury.
SAFETY INFORMATION
For your safety, follow these precautions when using your Rainmaker
18 Volt Lithium Ion Backpack Sprayer - 4 Gallon (Part # 708910)
Important Safety Guidelines:
PLEASE READ THIS MANUAL COMPLETELY AND FULLY UNDERSTAND
ALL INSTRUCTIONS AND WARNINGS BEFORE OPERATING THIS UNIT.
FAILURE TO COMPLY WITH THE PROCEDURES AND SAFEGUARDS
MAY RESULT IN SERIOUS INJURY OR PROPERTY DAMAGE! SAVE THIS
MANUAL FOR FUTURE REFERENCE AND KEEP IN A SAFE LOCATION.
WARNING!
1. The battery charger supplied is intended to be used with the
included lithium-ion battery included with this sprayer. DO NOT
use any other charger to recharge the lithium-ion battery pack.
2. During storage, make sure battery is charged at least once
every 3 months to protect battery from damage
3. Charge battery in dry areas only.
4. Plug charger into grounded power source that complies with
the electrical specifications. Avoid using an extension cord.
5. DO NOT operate charger with damaged power cord.
6. DO NOT use if equipment is damaged
7. DO NOT try to open or modify lithium ion battery pack, doing
so can cause serious injury or damage.
8. Before operating sprayer always use approved eye protection,
masks, gloves, clothing and any necessary safety gear.
OUNCES CUPS PINTS QUARTS GALLONS LITERS(APX)
4 OZ 1/2 C 1/4 PT 1/8 QT 1/32 GAL 1/8 L
8 OZ 1 C 1/2 PT 1/4 QT 1/16 GAL 1/4 L
16 OZ 2 C 1 PT 1/2 QT 1/8 GAL 1/2 L
32
OZ
4
C
2
PT
1
QT
1/4
GAL
1
L
64
OZ
8
C
4
PT
2
QT
1/2
GAL
2
L
128
OZ
16
C
8
PT
4
QT
1
GAL
4
L
256
OZ
32
C
16
PT
8
QT
2
GAL
8
L
384
OZ
48
C
24
PT
12
QT
3
GAL
11
L
512
OZ
64
C
32
PT
16
QT
4
GAL
16
L
640
OZ
80
C
40
PT
20
QT
5
GAL
20
L
LIQUID VOLUME CONVERSION CHART

Please read this manual for instructions and precautions
before using this product. Keep this manual and the
receipt in a safe place for future reference!
18 VOLT LITHIUM ION BACKPACK SPRAYER-4 GALLON
Product# 708910
Front
View
Back
View
ASSEMBLY AND OPERATING
INSTRUCTION MANUAL
Scan to learn more about Rainmaker® multi-purpose
sprayers for home and garden use or visit:
www.RainmakerSprayers.com
RAINMAKER® SPRAYER PRODUCTS
In addition to the Pressure Pump Sprayers, Rainmaker® multi-pur-
pose sprayers are available in a variety of other sizes for home and
garden use:
32 OZ AND 64 OZ
HAND SPRAYERS
½ GALLON, 1 GALLON, 2 GALLON AND 3 GALLON PUMP SPRAYERS
4 GALLON AND 5 GALLON
BACKPACK SPRAYERS
PRODUCT #
708502
PRODUCT #
708908
PRODUCT #
708906
PRODUCT #
708904
PRODUCT #
708898
PRODUCT #
708902
PRODUCT #
708900
PRODUCT #
708500
11-22-2016 LS
www.RainmakerSprayers.com
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