5.5
Retooling of Spray Gun
Warning
Make sure that all pressures are removed from the gun and the system before retoo-
ling - risk of injury.
Warning
Shut the air and material input off before retooling - risk of injury.
Note
See the drawing for detailed information when performing the retooling steps
outlined below.
Replacement of Material Outlet Nozzle (i.e. Airless Spray Tip)
1. Remove the sleeve nut (Item 1) (use a Size 22 mm wrench)
2. Remove the Airless spray tip (Item 2) and seal (Item 3) from the gun body
Installation of another or new Airless spray tip to be in reverse order.
Replacement of Material Filters
Coarse- or fine-grade filters may be used for efficient material filtration.
1. Remove all pressures from the gun and the system.
2. Remove the material hose(s).
3. Remove the material filter.
Installation of new filters to be in reverse order.
6
Servicing and Maintenance
6.1 Safety
Warnings
• Remove all pressures from the gun and the system before performing any servicing
and/or maintenance work - imminent risk of injury.
• Shut the air and material input off before retooling - risk of injury.
• No open fires and naked lights as well as smoking are allowed in the work area -
risk of fire and explosion, particularly when spraying readily flammable media such
as, for example, paints, lacquers, cleaning solutions, etc.
• All processing specifications and safety warnings issued by the manufacturers of
spraying and cleaning media must be duly complied with. Aggressive and corrosive
media represent risks and hazards to personal health.
6.2
Cleaning - Complete
It is recommended practice to clean and lubricate the spray gun at regular inter-
vals as this will greatly help towards ensuring a long service life and functional
reliability.
Caution
Never immerse the spray gun in solvent or any other cleaning solution as such
measure is highly likely to affect the functional reliability and efficiency of the gun.
Caution
Do not use any hard, pointed or sharp-edged objects when cleaning the spray
gun. Any damage of the precision-made parts will certainly affect your spraying
results.
Cleaning of the gun only with cleaning solutions recommended by the manufactu-
rer of the spraying material used at the time. It is important to make sure that
cleaning solutions do not contain any of the following constituents:
• halogenated hydrocarbons
(e.g. 1,1,1-trichloroethane; methylene chloride, etc.)
• acids and acidiferous cleaning solutions
• regenerated solvents (so-called cleaning dilutions)
• paint removers
The above constituents cause chemical reactions with electroplated components
resulting in corrosion damage.
Claims for damage arising from non-compliance with the above requirements will
not be accepted on the part of WALTHER Spritz-und Lackiersysteme.
Clean the spray gun
• prior to each change of the spraying medium
• at least once a week
• as often as may be required by the spraying medium handled and the resulted
degree of fouling.
The above cleaning measures are designed to maintain the functional efficiency
of the gun.
1. Dismantle the spray gun (see 5.5 "Retooling of Spray Gun").
2. Use a soft brush together with a compatible cleaning solution to clean the
noozle.
3. Use a suitable cloth with a compatible cleaning solution to clean the gun body
and all remaining parts
4. Apply a thin film of the appropriate grease type/grade to the:
• Material control needle
• piston spring
• all sliding parts and bearing surfaces
• all internal moving parts should be greased at least once a week
• all springs should covered by a thin grease film at all times.
8
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