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Verfügbare Sprachen
Verfügbare Sprachen
6.3
Cleaning - Routine
The spray gun does not have to be necessarily dismantled for cleaning if and when
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
performed:
1.
The material tank must be clean and then be filled with a compatible cleaning
solution. 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
complete spraying system does not have to be taken into operation.
1.
Pull the pull bar (pos. 24) of the spray gun backwards. The material inlet is now
open and both the material duct and the material control needle will be cleaned.
2.
Do not let go of the pull 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.
Note
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 the material needle according to 5.5 Retooling the Spray Gun.
2. Remove the compression gland (pos. 11), the spring cup (pos. 9) and the spring
(pos. 10) from the gun body (replace, if damaged).
3. Remove the needle seal packing (pos. 8) from its seat. Use a strong wire with one
end bent to form a small hook.
4. Lubricate the new needle seal packing with a non-acidic, non-resinogenic grease.
5. Install the new needle seal packing in the gun body.
Installation of the remaining parts is performed in reverse order.
36
Note
Never reinstall the removed needle seal packing (pos. 8) to the gun front attachment;
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
•
Piston Spring
•
Material Needle*
•
Needle Spring*
•
Cup Seal*
Note
Parts marked * must be lubricated with a non-acidic, non-resinogenic grease prior to
installation.
Note
All wearing parts of the PILOT Signier are marked in bold-face in the Listing of
Replacement Parts.
8
Troubleshooting and Corrective Action
Warning
Prior to any servicing and repair work: Make sure that the spray gun is in unpressu-
rized condition, i.e. all air and material inputs must be shut off - if not, imminent risk
of injury.
Fault
Cause
Gun is dripping
Material Needle or
Nozzle is fouled
Material Needle or
Nozzle is damaged
Packing Gland is too
tight
Gun fails to open Control Air Pressure too
low
Spray Jet pulsa-
Level in Material Tank
ting or unsteady
too low
Gun sprays
Cup Seals (pos. 14,
when not in ope-
pos. 28) are damaged
ration
37
Corrective Action
see 5.4 Removing Material Nozzle
and Needle and clean same
see 5.4 Replace Material Nozzle
or Needle
Loosen Packing Gland Screw
(pos. 6) slightly with a screw driver
Increase Control Air Pressure to at
least 4,5 bar
Top-up Material Level (see
Operating Instructions of plant
systems manufacturer)
Replace
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