6.3
Cleaning - Routine
The spray gun does not have to be necessarily dismantled for cleaning if and when
the spraying medium is changed in regular intervals or upon termination of work
(depending, of course, on the material used).
Notice
It is recommended to clean and lubricate the spray gun frequently in accordance with
6.2
Cleaning - Complete
. This will ensure a functional reliability of the spray gun.
The following requirements must be met before the routine cleaning work can be per-
formed:
1. The material tank must be clean and then be filled with a compatible cleaning solu-
tion. The material pressure must be available at the gun. The cleaning solution
should never be sprayed.
2. Take the spray gun into operation (see 5.2
Starting / Stopping Requirements).
3. Do not stop the spray gun until clear cleaning solution emerges from the nozzle.
The material input of the PILOT Signier can be released manually so that the com-
plete spraying system does not have to be taken into operation.
1. Pull the draw bar (item 34) of the spray gun backwards. The material inlet is now
open and both the material duct and the material needle will be cleaned.
2. Do not let go of the draw bar until clear cleaning solution emerges from the spray
gun.
All pressures should be removed from the complete spraying system until it is taken
into operation again.
7
Repairs / Replacements
Warning
Prior to any repairs / replacements: Make sure that the spray gun is in unpressurized
condition, i.e. all air and material inputs must be shut off - if not, imminent Risk of Injury.
Notice
Please use the drawing and the listing of replacement parts at the beginning of these
Operating Instructions in order to perform the following operating procedures.
7.1
Replacement of defective Needle Seal Packings
1. Remove all pressures from the spray gun.
2. Remove the material needle according to 5.5
Retooling the Spray Gun.
3. Remove the stuffing box (item 7) from the gun body (SW 7).
4. Pull out the spring cup (item 5) and the spring (item 6) from the gun body (replace,
if damaged).
5. Remove the needle seal packing (item 4) from its seat. Use a strong wire with
one end bent to form a small hook.
6. Lubricate the new needle seal packing with a non-acidic, non-resinogenic grea-
se.
7. Install the new needle seal packing in the gun body.
Installation of the remaining parts is performed in reverse order.
Notice
Never reinstall the removed needle seal packing (item 4) to the gun front attach-
ment; otherwise, the functional sealing reliability of the spray gun will suffer.
7.2
Replacement of Nozzles, Needles, Springs and Seals
Dismantle the spray gun in accordance to 5.5
Retooling the Spray Gun
if any of
the following parts have to be replaced:
• Material nozzle
• Valve spring*
• Material needle
• Needle-spring
•
Cup seal
*
Notice
Parts marked * must be lubricated with a non-acidic, non-resinogenic grease prior
to installation.
Notice
WALTHER PILOT supplies repair kit containing all wearing parts for the automatic
spray gun PILOT Signier 20 360. This parts are shown in bold print in the list:
Article-No.:
V 16 120 51 . . 3
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