Manual Solo 425 Pro (page 29 of 88) (English, German, Dutch, French, Italian, Spanish)

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6 Maintenance, cleaning and storage

ENGLISH 11

6.2 Trial run

At least at the start of every spraying season and in

frequent use at least once a month, perform a trial

run with clean water to check the following:

x Tightness of all equipment components at

maximum permissible pressure with open and

closed shut-off valve

x Function of all active components

(shut-off valve, pump lever)

x Dosing and distribution accuracy of all the

nozzles used by measuring the spraying agent

delivery rate according to section 6.3

Never start working if there are any irregularities or

leaks, if you can see any damage to the equipment

or if the equipment is not working properly in any

way. In this event, immediately have the device

checked by a specialist workshop.

6.3 Checking the spray nozzles and the filter

element

Fill up the tank with clean water to the maximum

marking, start it up and spray for exactly one

minute at an operating pressure of 2 bar [29 psi].

Then measure the quantity of water required to

refill the tank to its maximum level. The value

measured corresponds to the delivery rate of the

device in l/min for the selected operating pressure.

This value must not deviate by more than 10 %

from the value indicated in section 9.

If the actual value is too low, this may be caused

by deposits in the spray nozzle and/or in the filter

element. Clean the parts and repeat the check.

If the actual value is too high, this may be due to

wear or damage to the spray nozzle.

When checking the nozzles, also check whether

the spray nozzle is producing an even, fan-shaped

spray pattern.

If the delivery rate is still too low after cleaning the

nozzle and the filter element, or if the nozzle and/or

the filter element are worn or damaged, replace the

nozzle and/or the filter element by genuine SOLO

replacement parts.

Changing the spray nozzle and the filter element:

See section 6.4

6.4 Changing the spray nozzle and the

filter element

Spray nozzle and filter element must only be

changed if the device is depressurised.

To depressurise the device, hold the spray tube in

the spraying agent tank or in a suitable container

for the spraying agent and operate the shut-off

valve until no more fluid is sprayed.

Changing the spray nozzle or the filter element:

x Rinse the nozzle attachment with clean water.

x Disassemble the nozzle attachment.

x Clean the O-rings, the filter element and the

spray nozzle with clean water and a soft brush.

Never use your mouth to blow through the spray

nozzle! Never use hard objects to clean the

nozzles!

x Replace the previous nozzle by the new nozzle

or the previous filter element by the new filter

element.

x Reassemble the components of the nozzle

attachment (Fig. 22).

6.5 Greasing the cap gasket

If the tank lid becomes hard to tighten or open,

apply silicone grease to the lid gasket.

6.6 Greasing the piston collar and the pump

piston pump

(only 425 Comfort, 435 Comfort,

425 Pro)

After disassembly of the pump components or after

replacing the piston collar, use water resistant

grease to lubricate the piston and the collar.

6.7 Draining the spraying agent tank and

cleaning all other spraying agent carrying

parts

Drain the spraying agent tank, all other spraying

agent carrying parts and the filling strainer daily

after use and particularly at the end of the spraying

season and thoroughly flush them with clean water.

Any unused spraying agent that is left over in the

device could cause corrosion and hence damage

the device. Special attention must be paid to

wearing parts like spray nozzles, filters and seals.

Please read and observe the cleaning instructions

supplied with the spraying agent.

Recommendation: Use the special SOLO cleaner

for plant protection sprayers (dosing bottle of

500 ml [approx. 16.9 oz], part no.: 4900600).

Never use aggressive, acid- or solvent-containing

cleaning agents (gasoline for example).

After cleaning, leave the spraying agent tank open

to dry.

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Solo 425 Pro Manual

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