Verdemax 5981 User manual

Code 5981
The User Manual is an integral part of the backpack pump, please keep
it in a safe place.
In order to use and keep the backpack pump in good condition, please
read the User Manual carefully before using the pump. If in doubt,
contact the supplier.
The backpack pump must be repaired by skilled personnel who can
guarantee it is safe to use.
The manufacturer is not responsible for damage to the backpack pump
and injuries to persons resulting from product modification or improper
use. This equipment is provided with lithium-ion batteries.
User manual
www.verdemax.it
BACKPACK
PUMP,
WITH BATTERY
GB

Cone nozzle 0,90 ~ 1,10
Double cone nozzle 1,30 ~ 1,55
Nozzle for
fan jet
4 hole adjustable
nozzle
BACKPACK PUMP, WITH BATTERY
Cod. 5981
2
TABLE OF CONTENTS
I
II
III
IV
V
VI
VII
Description
Technical data
Warnings
Operation
Cleaning and maintenance
Troubleshooting
Main parts
page 2
page 2
page 3
page 4
page 6
page 7
page 8
This product is designed with an ergonomic shape in order to ensure comfort during use. The part in dense
sponge on the two sides of the support ensures comfort when carrying and ventilation to your back.
The straps are adjustable, with quick release buckles for ease of maintenance and cleaning.
The rollout battery allows easy replacement.
The on-off switch with power regulator allows spray control to conform with the various requirements with no
waste, achieving high efficiency.
The LED indicator provides an accurate condition of the battery: the three green lights mean normal feed. The
red light means over-charging. The yellow light means low power. The pump is also equipped with a buzzer
to avoid operation at low power.
Dedicated battery chargers are supplied: protected against short circuits / overvoltage.
1.
2.
3.
4.
5.
6.
I. DESCRIPTION
II. TECHNICAL DATA
Mpa pressure
Spray parameters
Flow rate L/min
1,10 ~ 1,45
1,00 ~ 1,30
Net weight Kg 4,74
Maximum size mm 380 x 235 x 572
Tank capacity 16 litres
Battery 12V 8Ah Lithium-ion battery
Pump operating data
Working pressure 0,20~0,45 Mpa (2~4,5 bar)
Limit pressure 0,45~0,55 Mpa (4,5~5,5 bar)
Flow 2,8 L/min
Battery charging data
Input AC100-240V ~ 50/60 Hz
Output DC12. 6V 2A
Nozzle type
0,30 ~ 0,45
(3 ~ 4,5 bar)
0,25 ~ 0,35
(2,5 ~ 3,5 bar)
0,20 ~ 0,35
(2 ~ 3,5 bar)
0,25 ~ 0,40
(2,5 ~ 4 bar)

BACKPACK PUMP, WITH BATTERY
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III. WARNINGS
In addition to strictly following the safety instructions in the manual, the operator must:
1. Not spray liquids not approved for spraying.
2. Observe the safety instructions on the container of the product to be sprayed.
Wear protective clothing for skin as shown by the manufacturer of the product to be used. If there
are no indications to this effect, we still recommend using protective garments.
Use the protective breathing mask with the characteristics required by the manufacturer of the
product to be used. In any case, we always recommend the use of a protective respiratory mask.
Use protective goggles as indicated by the manufacturer of the product to be used. In any case it is
always advisable to use goggles approved for eye protection.
Wear gloves suited to the product to be treated, as indicated by the manufacturer. Unless otherwise
stated, we recommend using waterproof gloves or at least with a high resistance to liquids so as not
to accidentally come into contact with the products being used.
Storage and maintenance of harmful products. They must be kept out of reach of children. The
disposal of these products must follow the safety instructions provided by the manufacturer.
The backpack pump can not be used for playing. Keep out of the reach of children, in particular
when it contains harmful substances.
Disassembly and repair of the battery charger is prohibited. In case of breakdown, please contact
the supplier.
Never aim the jet at people or animals. If persons or animals are accidentally hit by the spray, follow
the instructions on the package of the product you are using.
Any residual chemicals must be stored in a container, it cannot be poured on the ground and in
waterways. Empty bottles and bags must be disposed of following the instructions of the product
manufacturer. Do not leave unattended containers of products anywhere, even outdoors where the
elements could damage them, causing leakage.
Keep away from heat sources. The sun or heat sources can damage parts of the backpack pump.
People with fatigue, poor health, injuries, allergic to the products to be used or pregnant should not
use the backpack pump.
You must read this manual and follow the instructions to ensure correct operation.

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Never use acids, alkaline products, and flammable solutions. Do not use highly toxic and highly
persistent pesticides to control parasites of edible plants or fruit trees, etc., without respecting the
time necessary for their dissolution before product consumption. In any case refer to the information
provided by the product manufacturer.
Do not throw used batteries into a fire. Do not open the batteries. Dispose of them according to local
regulations.
Do not store in an unattended public place in order to avoid endangering public safety. Keep out
of the reach of children.
Substances placed in this container should never exceed 45°C. Operation in an environment above
45°C or below -10°C should be avoided.
After use, rinse the container with clean water, operate the pump for at least 1 minute to remove
the internal parts. Before use and before filling the backpack pump with the product to be sprayed,
it is a good idea to use clean water to check for leaks.
The preparation of products to be sprayed must carefully follow the instructions of the product
manufacturer to avoid risk to people and animals, and for the proper treatment of the plants to be
sprayed.
At the end of work, change clothing and wash your exposed body parts such as hands and face.
In any case, observe the instructions of the manufacturer of the product being sprayed.
IV. OPERATION
1. Control panel description
The display is equipped with 5 LEDs (1 Yellow warning light, 3 Green warning lights, 1
Red warning light).
a. The green lights show the remaining charge. 3 green lights show that the battery is
fully charged; if only one green light turns on, power is low.
b. If the yellow light turns on, the battery is completely dead. Recharging is required. In
this case a beep will be heard.
c. The red light warns of overload/overvoltage. (This light will not turn on during normal operation)
1 warning lights 2 knob 3 socket for charging 4 fuse carrier
2. Charger operation
Make sure that the input parameters of the battery charger comply
with the power parameters of the 220 volt network.
The battery of the backpack pump is supplied charged, however you may need to recharge it before use.
Check the battery charge by turning the knob 2 in the maximum power position. If only one green light appears
or the yellow light appears, the battery must be recharged. The battery can only be charged with the battery charger
supplied, by connecting it to the charging socket of the backpack pump and then to the power socket.
When the 3 lights turn green, the battery is fully charged.

BACKPACK PUMP, WITH BATTERY
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The battery charger must operate indoors in a dry, well ventilated place and off the ground.
If the backpack pump is not used for a long time, the battery may be damaged, every 15-30 days it is well to recharge
the battery to keep it efficient.
Do not operate the pump at length without liquid.
3. Filling the pump tank
Remove the backpack pump tank cover, slowly fill the tank through the filter, then close the
tank cover. Turn the feed knob, hold down the nozzle lever to start dispensing.
4. Power control
Turn the knob clockwise to turn on the
pump.
The green lights turn on. Keep turning
the knob to the highest point, if the
three green lights come on, the battery
is charged. Press the nozzle lever and
turn knob 2 to get the desired power.
5. Program for controlling spray.
7. Strap adjustment6. Correct positioning of the backpack pump on the shoulders
Intermittent spray Continuous spray

Double-cone nozzle Fan nozzle
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8. Stop.
To stop spraying release the nozzle handle (if you have pressed the handle lock button, it must be released). At this
stage it just stops spraying but the pumping system remains in operation and enters the recirculation mode to avoid
damage due to overpressure. If you do not intend to use the pump for a while, be sure to disconnect the power supply
by turning the knob counter-clockwise until it turns off.
9. Nozzle choice
For nozzle choice, it is best to follow the instructions on the product package. However, purely indicative: the cone
nozzles are used for pesticides and insecticides, to prevent disease and kill insects harmful to plants. The fan-shaped
nozzle spreads evenly and is suitable for spraying on low crops and for spraying herbicides. The adjustable nozzle
with 4 holes is suitable for spraying on high stalk crops or trees.
10. Battery removal
Cone nozzle Nozzle with 4 holes
After each spray, the backpack pump must be cleaned to prevent corrosion and clogging of nozzles and pumping
system due to the products used. In addition, cleaning prevents stagnation of residues that could alter the characteristics
of the products used next.
How to clean the backpack pump: Empty residue from the tank, the drain plug can be used to do this, located
on the side of the tank. Shake the backpack pump after filling it at least 1/3 of water and pour out the contents,
repeat if necessary. Fill the pump again with clean water for at least 1/3 of the tank and start it up again by making
large amounts of water come from the nozzle to ensure that all the ducts have been well washed.
Inadequate cleaning which leaves residues may block the pump or clog the nozzles.
The outer part of the pump can be cleaned with water and a sponge.
The backpack pump must be stored out of the reach of children and in a covered, dry place.
Keep the pump upright and not exposed to direct sunlight.
V. CLEANING AND MAINTENANCE
Open the cover, lift the battery and remove it.

By turning the knob the LED
lights don’t come on
The pump does not work but
the green LED light is on
Abnormal noises while the
pump is in operation
A loss occurs in the lower
part of the base
Spray not effective
The red light turns on while
charging
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VI. TROUBLESHOOTING
Problem Cause Solution
- Low battery
- The fuse is blown
-The power switch has been damaged
- The power cables were disrupted
- The pump power cables are
disconnected
- Damage to the motor
-The fixing screws of the pump have
loosened
- The pump suction or delivery pipes
are loosened
- The filter in the tank or the handle
is blocked
- The nozzle holes are clogged or
damaged
- The disk inside the jet is mounted
the wrong way round
- The pipe joints are loose
- The pump is damaged
-Power supply voltage of charger too
high
- Charge the battery
- Replace the fuse
- Replace the switch
- Remove the base to reconnect
the wires
-Remove the base and reconnect the
cables
- Replace the motor
-Tighten the screws
- Remove the base to tighten the
pipe clamps
- Clean the filter and remove
impurities
- Clean or replace the nozzle
- Mount it properly
-Tighten the joints
- Repair or replace the pump
- Use a correct voltage socket

VII. MAIN PARTS
Ref.
A
B
C
D
E
F
G
H
I
L
DESCRIPTION Tank Nozzle Straps Cover Pump support base Tank support Pump Wiring diagram Battery Charger
BACKPACK PUMP, WITH BATTERY
Cod. 5981
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The product is compliant to Directive EU 2002/96/EC on electric and electronic equipment. At end life, it must be delivered to an equipped waste storage area.
It works with
12V 8Ah Lithium-Ion Battery (included) Open the equipment to replace or dispose of the battery.
Rama Motori SpA
Via Agnoletti, 8 - 42124 Reggio Emilia - Italy
www.verdemax.it
Made in P.R.C.