Silvan Selecta WP16-6 User manual

Instruction Manual
MANWP16-6 REV G 11/04/17
RECHARGEABLE BACKPACK SPRAYER
WP16-6

Warning! This sprayer is designed and manufactured solely for the purpose of applying agricultural
chemicals to plants. Under no circumstances may it be used for any other purposes.
Warning! Prior to using the sprayer all operators must read and fully understand the contents of
this instruction manual, all safety information fitted to the sprayer and any other
instructions for associated equipment or chemicals.
Warning! Never allow an inadequately trained person to install or operate the sprayer.
Warning! Do not spray or pump flammable liquids.
Warning! Refer to the chemical manufacturer’s label for correct use and safe handling instructions
of chemicals before filling or using the sprayer. Always wear the recommended safety
clothing and equipment when handling chemicals and operating the sprayer. Ensure that
all operators and associated personnel are familiar with the legal regulations and codes
of practice that apply to the safe use, storage and disposal of spray chemicals.
Warning! Exercise care to ensure proper stability when carrying or operating in hilly and uneven
terrain, particularly if the ground is wet or loose. Wear non-slip shoes.
Warning! Before carrying out maintenance work, wash the sprayer thoroughly to remove all toxic
chemicals that may contaminate the sprayer. Wear appropriate safety clothing and
equipment when carrying out maintenance. Do not clear blocked nozzles by blowing out
with your mouth.
Warning! Never point the spray gun at any person or any part of the human body.
Warning! Dispose of empty chemical containers and chemical residues in accordance with the
instructions supplied by the chemical manufacturer.
Warning! This sprayer places weight directly on the back and shoulders as well as indirectly on the
lower body. If you have or suspect you may have any physical condition that may be
aggravated by carrying weight on your back, then do not use this product.
BATTERY CHARGER WARNINGS:
Warning! When using the battery charger ensure it is a dry environment and do not leave the
charger where it may rain.
Warning! The battery charger is not to be used by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they
have given supervision or instruction.
Warning! Children should be supervised not to play with battery charger.
Warning! The battery charger is only intended to accept 7.4VDC Lithium Ion Battery pack from
SILVAN AUSTRALIA PTY LTD having max. rated capacity of 4Ah.
Warning! Do not use this charger to charge Non-Rechargeable battery packs.
Warning! The supply cord cannot be replaced. If the cord is damaged the battery charger should be
scrapped
Safety Instructions
Before attempting to operate or install the sprayer carefully read and take note
of the following safety warnings.
Failure to comply with these warnings may result in serious injury or death.

GENERAL:
This knapsack sprayer has been designed and
manufactured solely for the purpose of
applying agricultural and horticultural
herbicides and insecticides to plants.
DIMENSIONS:
Length: 260 mm
Width: 345 mm
Height: 550 mm
Weight (dry): 5kg (without charger)
Nominal capacity: 16 Litres
To calculate the weight of the sprayer, add
1kg to the dry weight for every litre of water.
E.g. The laden weight of the sprayer with 16L
of water is 21kg.
PUMP:
Flow: 1.5 L/min open flow
6 Volt DC Diaphragm pump with an ‘On-
Demand’ pressure sensing switch that starts
the pump when pressure drops below 30-
35psi and stops the pump at 35-40psi when
the handgun is switched off.
Valves: Viton
Diaphragm: Santoprene
Duty Cycle: Intermittent
Battery Run Time: Up to 5 tanks of spraying
per charge.
TANK:
16L blow moulded translucent polyethylene
tank, U.V. stabilized and impact resistant
with calibrated fill mark moulded into the
tank. Shoulders straps attaching points.
SPRAYLANCE:
Poly trigger gun with 550mm lance and
adjustable nozzle.
FILTRATION:
1. Basket strainer under lid
2. Internal suction tank filter
3. Filter in spray trigger handle.
BATTERY:
Note: Battery should be charged before first
use.
7.4V, 4Ah (Amp/hour), Lithium Ion
FUSE LINK:
Specification: 6A, 3AG.
BATTERY CHARGER:
240V AC battery charger. 8.4VDC, 1A
Approximate charging time 6 hours
Red indicator light = Charging
Green indicator light = Charged (Also Green
when charger not connected to battery)
Specifications
Associated Transformer T1 in the battery charger
Manufacturer
W&T
Model No:
CH24WA-08
Pri:
100 - 240V~, 60/50Hz,
0.4A - 0.2A
Sec:
12.5VAC, 1.0A.
Internal operating frequency
75 kHz max.
Class Ⅱsymbol:
Only intended to be used with the SILVAN
Battery Charger (Model No: W&T –AD12W084100)
Battery Charger
Tradename / Brand name:
SILVAN
Model No:
W&T –AD12W084100
Input:
100 - 240V~, 60/50Hz,
0.4A - 0.2A
Output:
8.4VDC, 1.0A
Class Ⅱsymbol:
Symbol for indoor use only:
Symbol SMPS incorporating a Short-
circuit proof isolating transformer
(inherently or not inherently)
Symbol SMPS:
Fuse link
T1.0A
Charger for 7.4V Lithium Ion Battery pack from SILVAN only.
Before charging, read instructions.
Do not expose to rain.

GUN ASSEMBLY:
Fit the spray lance to the gun ensuring the O-Ring is fitted. Fit the 45-degree elbow and nozzle to
the tip of the lance again ensuring the O-ring is in place.
ADJUSTING SHOULDER STRAPS:
The shoulder straps are supplied fitted. If they become disconnected reattach as shown in the
pictures below.
Installation
O-RING POSITION

CHARGING THE BATTERY:
Note: The battery should be charged before first use.
Check the pump switch is in the off position. Plug the battery charger into a standard 240 Volt power
point. Connect the coaxial plug on the output lead to the socket on the sprayer. Recharging time
depends on the state of the battery. A completely discharged battery takes up to 6 hours to recharge.
After recharging for general safety reasons turn off the charger, particularly in an unattended area.
WARNING: Only use the genuine battery chargers supplied by Silvan Australia. Non genuine
chargers may apply incorrect charge to the battery.
FILLING THE TANK AND ADDING CHEMICAL:
Warning: Before using the sprayer for the first time or adding chemical check the operation and
function of the sprayer with clean water
•Check that the battery is charged, the filters are clean, and all fittings, hoses and gun
connections are tight.
•Partly fill the sprayer before adding chemical. Always use clean water to prevent blockages
and ensure chemical function is not inhibited.
•Add the chemical according to the directions on the chemical container following all safety
and protective equipment recommendations.
•Do not use wet powders or chemicals that must remain suspended in solution and require
agitation. Only use chemicals or dyes that fully dissolve.
•Do not use a sprayer that has been used to spray herbicides for insecticides or nutrients unless
the sprayer has been thoroughly cleaned including neutralizing the herbicide according to the
manufactured directions if required.
OPERATING THE PUMP:
The pump has an off switch located on the base
(bottom) of the sprayer. The pump will also switch off
automatically when the spray lance is not in use,
however when the tank is empty this does not function.
When leaving the sprayer unattended always switch the
pump switch off.
OPERATING THE SPRAYLANCE:
Depress the trigger to operate the lance. The nozzle on the end of the lance can be adjusted by
twisting to create a solid stream or a hollow cone shape for misting. For herbicide sprays do not use
a fine mist as the mist can easily be carried off target by the wind and kill or damage other plants.
Operation
Charge socket at back
of sprayer
CHARGE INDICATOR LIGHT (on Charger):
Take note of the following when charging to
trouble shoot any technical difficulties.
GREEN = Battery Charged
RED = Battery Charging
GREEN = Charger not connected to battery (or
loose connection, blown fuse)
SWITCH POSITION 0 = OFF, 1 = ON

To avoid chemical contamination, wear appropriate protective equipment including gloves
whenever maintenance is carried out; turn off the pump and depress the trigger on the spray lance
to dissipate any pressure.
After spraying is completed, drain unused chemicals from the tank. Rinse the tank with clean water
then operate the sprayer with clean water in the tank to clean out the pump, hose and spray lance.
Do not leave chemicals in the tank as they may crystallize or form solids and block in pump, spray
lines, nozzle or filters.
If heavy frosts are experienced, run the sprayer until the pump and spray lines are dry. This will
prevent water freezing in the pump and damaging the sprayer.
Warning! Dispose of unused chemical and water used for rinsing in a manner that will not endanger
people, animals or the environment in accordance with local regulations and the handling and
disposal information available from the Chemical manufacturer.
CLEANING THE FILTERS:
The knapsack has 3 filters that require cleaning. Always use clean water and rinse out the sprayer
after use to avoid filters becoming clogged.
1. Basket strainer under lid. Clean when dirty.
2. Filter in gun handle. Unscrew the hose connection to the gun and withdraw the filter using a pair
of pointy nose pliers and clean.
3. Suction filter inside tank. Unscrew the filter using a pair of pliers grasping it on the hexagonal brass
section against the tank. Withdraw the filter, disassemble and clean. When reassembling do not
over tighten
Maintenance
FILTER INSIDE GUN HANDLE

USING THE VACUUM PUMP:
If the sprayer has not been used for some time or has been left with chemical in it then the pump
valves may become stuck. If this happens the pump will run but no liquid is pumped.
If this happens you can use the hand operated vacuum pump to prime the pump as follows:
1. Empty the tank and spray hose of liquid
2. Make sure the power switch on the knapsack is off
3. Connect the hand pump as shown in the pictures below and lock the trigger on
4. Pump the handle to draw some air and unstick the pump valves
5. Clean the vacuum pump after use.
Sometimes when accessing the battery or changing a fuse it is possible to accidentally disconnect a
cable stopping the sprayer from operating.
The Battery box on the back of the sprayer includes the charging socket, fuse and battery. Use the
diagram (right) and troubleshooting instructions to resolve basic difficulties.
Maintenance (cont.)
Lock Trigger
On
Troubleshoot

TROUBLE SHOOTING GUIDE
Problem
Solution
Pump does not operate
•Ensure battery wires are connected to battery properly.
•Check the inline Fuse in the power loom (Fuse is Blown or
cable to fuse is loose/ disconnected).
•Check battery is not flat, or charger has not been working.
Battery charger is not
charging or battery related
issues.
Connect Charger to 240V Power socket, Charger Indicator light
should be Green when not connected to sprayer
•Connect to charge socket on sprayer. Charge indicator light
will change from GREEN to RED when charging.
•If Light remains GREEN when connected Battery is charged.
Turn on pump Light should change RED to indicate charging
(no problem)
•If Light remains GREEN when pump on connection in Battery
Box is loose. Check all terminals are fitted and fuse not
blown. If fuse OK rattle fuse connector to check it part is
loose.
Pump operates but cycles or
continues to run when the
wand handle is released
•There is a slow leak of liquid. Check all connections.
•The tank is empty, or the suction line is not fully immersed.
Pump operates with no flow
rate or reduced flow
•The pump will not prime unless the gun trigger is on.
•Check filter, nozzles and spray lines for blockage.
•Pump valves may be stuck or blocked. Use the hand air
vacuum pump according to the instructions in manual.
Alternatively apply a small amount of pressure to the suction
line by placing a garden hose over the suction hose inside the
tank while the pump is running.
Troubleshoot (cont.)
Fuse Holder