Solo 441 Manual Original página 8

Nozzle adjustment
Fig. 12
a) Nozzle closed
 hollow cone
Delivery rate at 2.5 bar:
0.6 l/min [0.158 USgal/min]
b) Nozzle open
(1/2 turn 180° until
max. 1 turn, 360°)
 coarse and narrow jet
Delivery rate at 2.5 bar: 1.6 l/min [0.422 USgal/min]
Spraying:
When the hand valve (g) is closed (hand valve not
actuated), turn on the pump with the
on/off switch (f).
Hold the spray wand with the hand valve.
Fig. 13
To spray, depress the hand lever on the valve.
Release the hand valve lever to stop spraying.
To spray the underside of leaves, lightly loosen the
spray wand cap nut and turn the wand hand tighten
again.
An uneven spray picture or reduced spray output
from the nozzle may require cleaning of the nozzle
filter insert and nozzle (chap.10.4) or the
replacement of these parts (chap. 10.3).
If the spray output is clearly reducing, end spraying
and charge the battery.
9.1 Disposal of residual spray volume
Residual spray volumes of less than 200 ml
[6.8 oz] are no longer pumped effectively. Either
add more spray formula and continue spraying or,
when finishing off, dilute the residual volume with
2 litres [68 oz] of clean water and apply to the
already treated area.
At the end of work, turn off the pump with the on/off
switch, empty and clean the device according to
ENGLISH 8
chap. 10.4, clean your face and hands thoroughly,
take off work clothing and wash it regularly.
10 Maintenance, cleaning and storage
10.1 Maintenance plan
Before starting work:
 Check the entire sprayer is operationally safe by:
o Visual inspection of the sprayer
o Checking the tightness of all parts (at
maximum admissible pressure with the hand
valve opened and closed).
o Checking the working of all functional parts
(pump lever, hand valve).
o Checking the hoses and their screw
connections.
o Visual inspection of the filter screen in the
filler basket.
After the end of work, when changing the spray
formula, whenever required:
 Cleaning the spray tank chap. 10.4
 Cleaning the nozzles and filters chap. 10.4
 Cleaning the filter screen in the filler basket
chap. 10.4
10.2 Test run
When the spraying season starts and then every
month, the following items must be checked in a
test run with clean water:
 Tightness of all device parts in pump operation
with the hand valve opened and closed
 Function of the hand valve; no spraying agent
must escape with the hand valve closed (hand
valve not actuated).
 Dosage and distribution accuracy
In case of irregularities, damage, leaks or limited
function, do not use the sprayer but have it
checked in a specialist workshop without delay.
10.3 Replace the spray nozzle and/or filter
 Flush the nozzle assembly with clean water.
 Unscrew the nozzle assembly.
 Clean the O-rings, filter insert and spray nozzle
with clean water and soft brush. Do not blow out
the spray nozzle by mouth! Do not clean nozzles
with any hard objects!
 Replace the nozzle with a new nozzle and/or
new filter insert.
 Screw the parts of the nozzle assembly back
together (Fig. 2).