Conversion And Repair; Cleaning And Maintenance; Basic Cleaning - WALTHER PILOT PILOT PREMIUM Instructions De Service

8

Conversion and repair

If you want to change the spray pattern beyond the options already mentioned, the
spray gun must be converted. The air cap / material nozzle / needle combination
matching the spraying material represents an interactively tuned unit - the nozzle
insert. Always replace the entire nozzle insert to maintain the desired spray pattern
quality.
Warning
Interrupt the air and material supply to the spray gun before each conversion or
repair - risk of injury.
Note
Please refer to the exploded view at the beginning of these operating instructions to
perform the work steps listed below.
Changing the material nozzle and air head
1. Unscrew the air head nut (item 1).
2. Remove the air head (item 2).
3. Unscrew the material nozzle (item 3) with a wrench size 11 from the gun body.
Note
The assembly of the new nozzle insert as well as of the remaining components takes
place in reverse order.
Changing the material needle
1. Unscrew the spring cap (item 13).
2. Remove the needle spring (item 12).
3. Pull the material needle (item 9) out of the gun body.
4. Loosen the counter screw (item 11) from the driving bushing (item 10) and
unscrew the material needle.
Assembly takes place in reverse order.
X
Note
The needle setting for the PILOT PREMIUM (FB) is X = 59.5 mm and for the PILOT
PREMIUM (FA) X = 66.5 mm from the needle tip to the driving bushing.
Replacing a leaking needle packing
1. Remove the material needle as outlined above.
2. Unscrew the packing screw (item 8) from the gun body.
3. Unscrew the lever shank screw (item 32) and the lever screw (item 30) and
remove the trigger (item 31).
4. Remove the needle seal (item 7). You may need to use a thin wire with the end
bent to a hook.
Assembly takes place in reverse order.
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Warning
The needle pack taken from the gun attachment may not be reused since a reliably
functioning sealing effect is no longer ensured.
Note
All movable and sliding parts must be greased with WALTHER PILOT gun grease
before installation in the gun body.
9

Cleaning and maintenance

9.1

Basic cleaning

The spray gun must be regularly cleaned and lubricated in order to enhance its
service life and ensure the functionality of the spray gun.
Attention
Never place the spray gun in solvent or another cleaning agent. The perfect function
of the spray gun can otherwise not be guaranteed.
Attention
Do not use any hard or pointed objects for cleaning. Otherwise, precision parts on
the spray gun can be damaged and spraying results degraded.
Use only those cleaning materials for cleaning the spray gun which have been pre-
scribed by the manufacturer of the spraying material and which do not contain the
following:
• halogenated hydrocarbons (e.g. 1,1,1, trichloroethane, methylene chloride,
etc.)
• acids or acidic cleaning agents
• regenerated solvents(so-called cleaning thinners)
• varnish removers.
The constituents named above cause chemical reactions on galvanised components
and lead to corrosion damage.
WALTHER Spritz- und Lackiersysteme will not accept warranty claims for damages
resulting from such treatment.
Basic cleaning of the spray gun should be carried out
• at least once a week
• several times a week, depending on the material and the degree of contamina-
tion. In this manner, the safe functioning of the spray gun is maintained.
1. Disassemble the gun.
2. Clean the air head and the material nozzle with a brush and the cleaning agent.
3. Clean all other components and the gun body with a cloth and the cleaning
agent.
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