Conversion And Repair; Cleaning - WALTHER PILOT TERRA Mode D'emploi

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Conversion and repair

If a jet contour other than those already described is desired, the spray gun has to
be re-tooled. Air cap, material nozzle and needle packing together form a unit - the
nozzle insert assembly. Always change the complete insert assembly to maintain the
desired spray finish quality.
Warning
Prior to any repairs/replacements: Make sure that the spray gun is in unpressurized
condition, i.e. air must be shut off - if not, imminent Risk of Injury.
Note
In order to perform the following procedures, please refer to the exploded diagram at
the beginning of these operating instructions.
Replacement of the material nozzle and the air cap
1. Unscrew the air cap nut (N° 1).
2. Remove the air cap (N° 2).
3. Unscrew the nozzle (N° 3.1) (ws 19) from the gun body (N° 4).
Reassemble in reverse order.
Replacement of the material needle
1. Remove the adjusting screw (N° 7).
2. Remove the needle spring (N° 3.4).
3. Pull the material needle (N° 3.3) out of the gun body.
Reassemble in reverse order.
Replacement of the needle seal
1. Disassemble the needle as described above.
2. Unscrew the lever shank screw and the lever screw and remove the trigger
(N° 11).
3. Remove the needle packing gland out of the gun body.
4. Remove the needle seal (N° 3.2) (Use a thin wire, one end of which is bent into
a hook, for this purpose).
Reassemble in reverse order.
Note
Never reinstall a used needle seal, as otherwise the functional sealing reliability of
the spray gun will not be guaranteed.
Note
All movable and sliding parts (except the material needle!) must be greased with
WALTHER PILOT gun grease (Art.-Nr.: V 00 000 00 001) before installation in the
gun body.
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9

Cleaning

Attention
Never place the spray gun in solvent or another cleaning agent. The perfect function
of the spray gun can otherwise not be guaranteed. Do not use any hard or pointed
objects for cleaning. WALTHER, Wuppertal, will not accept warranty claims for
damages resulting from inappropriate cleaning.
The gun does not need to be dismantled for cleaning.
1. Fill the cleaned gravity-feed cup with a cleaning fluid compatible with the
sprayed material.
2. Operate the spray gun.
3. Do not stop the spray gun until clear cleaning fluid emerges from the nozzle.
The entire system should then be depressurised until the gun is used again.
Clean the spray gun only with cleaning agents which have been recommended by
the manufacturer of the sprayed material and which do not contain the following
constituents:
• halogenated hydrocarbons (e.g. 1,1,1-trichloroethane, methylene chloride, etc.)
• acids and acidic cleaning fluids
• regenerated solvents (so-called cleaning thinners)
• paint removers
The above-mentioned constituents cause chemical reactions on electroplated
components, resulting in corrosion damage.
Clean the spray gun
• before each change of spraying material
• at least once a week or
• several times a week if required by the spraying medium and depending on the
degree of fouling.
Complete Cleaning
1. Disassemble the spray gun.
2. Clean the air cap and the material nozzle with a soft brush and cleaning fluid.
3. Clean all other components and the gun body with a soft cloth and cleaning fluid.
4. Coat the following parts with a thin layer of grease:
• needle spring
• all sliding parts and bearing points.
The moving internal parts must be greased at least once a week.
The springs should always be coated with a thin layer of grease. For this, always use
WALTHER PILOT gun grease and a soft brush. Assemble the gun again in reverse
order.
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