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
(on/off switch, 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. 10.3
Cleaning the nozzle chap. 10.3
Cleaning the filter screen in the filler basket
chap. 10.3
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 Empty the spray tank and clean all the
parts in the spray delivery system to the
nozzle
Switch off the pump, depressurise the device,
remove the battery and store it safely.
Empty the spray tank, flush with clean water all
parts in the delivery system to the nozzle and the
filter screen in the filler basket.
Give special attention to the wear parts such as
nozzles and seals.
Observe the cleaning notes in the original user
manual for the chemical.
Never use any aggressive, acid- or solvent-
containing cleaning agents (e.g. petrol).
After cleaning, let the spray tank dry in the open
air.
Clean the spraying nozzle, filter and filling screen
Flush the nozzle assembly with clean water.
Unscrew the nozzle assembly.
Clean the O-rings, spray nozzle and filling
screen with clean water and a soft brush.
Never blow out the spray nozzle with the mouth!
Never clean nozzles with hard objects!
Screw the parts of the nozzle assembly back
together (Fig. 2).
10.4 Down periods and storage
Switch off the pump, depressurise the device,
remove the battery and store it safely.
Empty and clean the sprayer according to chap.
10.4.
Keep the sprayer protected from sunlight in a dry,
frost-free and secure location at a temperature of
max. 35 °C [95 °F].
Prevent unauthorised use – especially by children.
Fig. 14
ENGLISH 8