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4 Service
4.1 Cleaning
WARNING!
Danger caused by combustible and noxious spraying material. Safety instructions on fluid
can and material data of fluid manufacturer must definitely be observed.
WARNING!
Before opening the spray gun it has to be disconnected from the air supply and from the
material supply. Otherwise ejected elements can cause danger.
To clean the gun, spray solvent until pure solvent leaves nozzle. Do not submerge entire gun in solvent.
At longer working interruptions it is advisable to clean air cap and nozzle by putting these parts only into
solvent. If necessary, use soft brush. To clean small drill hoses, use our special nozzle cleaning
needles. Moving parts and threads should always be greased slightly.
4.2 Changing nozzle set
A nozzle set includes needle (1.1.1), nozzle (2.1.1) and air cap (3.1.1 or 3.1.2). If nozzle size is to be
changed, always change all three parts. Change the complete set also when only one of the parts is
defect.
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1. Remove screw (21.1)
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2. Pull out valve spring (20.1)
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3. Pull out needle/valve cartridge
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4. Unscrew the collar ring (4.1.1), remove air cap (3.1.1 or 3.1.2)
•
5. Unscrew nozzle (2.1.1)
Re-assemble in reverse order.
4.3 Dis-assembling needle/valve cartridge
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1. Remove screw (21.1)
•
2. Pull out valve spring (20.1)
•
3. Pull out needle/valve cartridge
•
4. Unscrew valve lock (18.1)
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5. Pull out needle spring (17.1)
•
6. Pull out needle (1.1.1)
Re-assemble in reserve order. OBSERVE!!!
Needle nuts (16.1) must be counter-screwed in such a position where "pre-" and "purging-air" work.
The correct position of needle nuts (16.1) on needle or extension needle is 8,8 - 9,0mm from the end of
the needle.
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