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Paint spraying
CAUTION
Inhalation of paint, paint dust and solvent is not healthy. Make
sure an approved spraybooth is used. The operator must use
personal protection-breathing mask or fresh air hood.
Operation
•
Install and operate the spray gun according to Fig. 1.
•
Blow the paint and air hoses clean before connection.
•
Check that all connections are tight (pay particular attention to
the connection between paint cup and spray gun).
•
Keep the spray gun clean and lubricate moving parts at regular
intervals.
•
Lubricants for surface-treatment equipment must not contain
silicon.
•
In the event of leakage around the paint needle, tightening the
packing screws (3) from both sides. After tightening, check that
fluid needle is pushed forward by the spring force.
•
For short standstill periods, for instance over a night, it will
suffice to clean the air and paint nozzles on the outside. If a
two-component paint is used, however, the gun must be flushed
through immediately with solvent. This must also be done if the
gun is to remain unused for a longer period of time.
•
When cleaning the air cap and the paint nozzle, use a soft brush
or rag dipped in solvent. Do not place the entire gun in solvent,
as the oil on the lubricated parts would be dissolved. Blow the air
cap dry with compressed air from both sides.
•
Never use iron or steel wire to clean air holes and ducts in
the nozzles.
Connections and controls
3
Paint needle packing adjusting screws.
4
Fan width adjusting. If the knob is screwed all the way in a round
fan will be obtained other positions give broad fans.
16 Paint flow adjusting. Clockwise turning result in a smaller paint
flow and counter-clockwise turning increases the flow. The fluid
flow is regulated in the first instance by the choice of paint nozzle
and paint pressure.
34 Atomizing air hose connection G 1/4.
Hose: Inside dia. 6.3 mm (1/4").
42 Paint hose connection G 3/8.
Hose: Inside dia. 6.3 mm (1/4") or 9.5 mm (3/8").
How to operate
Recommended paint viscosity differs according to paint properties and
painting conditions. 15 to 23 sec./Ford cup 4 is recommendable.
The gun is operate at low air pressure, high transfer efficiency will not
be obtained if the spray distance is to far.
Set the spray distance from the gun to the work piece as near as pos-
sible within the range of 150-300 mm.
Air caps
The air caps are tested and certified according to the SEAVA method.
This gives a "finger print" of the spray pattern on each air cap.
For further information please contact your supplier.
The retaining ring for the air cap shall only be tightened with hand
force. No tools are required. Especially important when a capcleaner
is used.
Air caps can be sent back for checking and comparity the perform-
ance. For further interesting please contact your supplier.
6
(see Fig. 1)
Disassembly-Reassembly
(see also Fig. 2)
VARNING
Before any intervention on the spray gun, shot off and relieved
the compressed air supply and paint pressure to the gun.
Before reassembling the different components:
• Clean the parts with the appropriate cleaning agent by means
of brush.
• Install new seals after having lubricated them with PTFE grease.
• Install new parts if necessary.
Needle packing and needle
1. Remove the air cap (33), and the paint nozzle (32).
2. Unscrew the back head (14) by screwing the wheel (16) counter-
clockwise.
3. Remove the spring (15) and the paint needle (12).
4. Dismantle the front packing screw (29).
5. Dismantle the packing screws (3).
6. Pry out the the packing set (2). Clear out any remains of the
packings
.
7. Clean everything well with cleaning agent and then blow out with air.
8. Assembly the packing (2 ) whith holes and the packing screw (29) on
the paint needle (12), tightening with a screwdriver.
9. Assembly the side packings (2) in the gun body. Advance the packing
screws (3) with a screwdriver from both sides until good friction is ob-
tained between the paint needle (12) and the packings (2).
10. Re-fit the paint nozzle (32) (screwing torque 22 Nm), squeeze the
trigger (17) to avoid damaging the tip of the paint needle, and refit the
air cap (33) by hand.
Distributor ring
1.
Dismantle the distributor ring (30) by screving on the air cap (33) a few
turns. Withdraw the distributor ring axially from the gun body.
2.
Assembly the distributor ring (30) by mating it with a pin (28) in the gun
body.
Fan width control
Check when fitting the valve housing (8) that the marking on the body
agrees with fig. below.
Position of valve housing (8)
after fitting in the gun body
65130 F302
(see Fig. page 1)
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