Spraying Techniques; Cleaning And Maintenance - Bort BFP-18A Mode D'emploi

Plastic & latex paint
Water based paint
Primers
Varnishes
Oil based paints
Enamel paints
Aluminium paints
Carundersealing
Wood sealers
Wood preservatives
Wood stains
If the paint takes longer than the recommended time to
empty, then further thinning is required. Mix in a small
quantity of the appropriate thinner and use the viscos-
ity test until the correct thickness is achieved. Some
sprayable materials contain particles and lumps. These
materials should be strained before fi lling the paint con-
tainer.
SPRAYING C
Fill the paint container with the correctly thinned and
strained paint. Connect the spray gun to the mains
supply. Aim the spray gun at a piece of scrap material
and operate the trigger switch until paint is spraying.
Adjust the output control
volume of paint is spraying. Turn the output control
in a clockwise direction (B) to reduce the fl ow and
anti-clockwise (A) to increase the fl ow. Adjustment of
the output control will affect the spray pattern. A poor
spray pattern will concentrate the paint in the centre
of the spray and give a blotchy fi nish. A good spray
pattern will give even distribution of paint throughout
the pattern.

SPRAYING TECHNIQUES

To obtain the best results, keep your spray gun level
and parallel to the surface at all times.
Keep the nozzle 25 - 30 cm from the surface and spray
evenly from side to side or up and down. Do not spray
at an angle as this will lead to paint runs on the surface.
Use smooth and even strokes. When spraying large
areas, use a criss-cross pattern as shown.
E
Never start or stop the spray gun while it is aimed at
the surface to be sprayed. Evenly control the speed of
movement of the spray gun. A fast speed of movement
over the surface will give a thin coat and aslowspeed
will givea heavy coat. Apply one coat at a time. If a fur-
ther coat is required, make sureyou observe the manu-
facturers drying time recommendations before apply-
ing a second coat. When spraying small areas, keep
the output control on a low setting. This will avoid using
8
24 - 28 seconds
20-25 seconds
24-28 seconds
20-25 seconds
18-22seconds
18-22seconds
22-25 seconds
25-35 seconds
28-35 seconds
Nothinningrequired
Nothinningrequired
until the required
D
too much paint and prevent overspray. Where possible,
avoid stopping and starting when spraying an object.
This can lead to too much, or not enough paint being
applied. Do not tip the spray gun to more than 45°

CLEANING AND MAINTENANCE

It is essential that the spray gun is cleaned thoroughly
after every use. Failure to clean it will almost certainly
result in blockages and it may not operate when you
next come to use it! The guarantee does not cover
cleaning a sprayer that has not been properly cleaned
by the user.
The following action must be taken after every
use.
1. Empty any remaining material from the container.
2. Clean the container thoroughly with the thinner
thatwas used.
3. Pour some thinner into the container and spray
through the spray gun until only clean thinner is
coming out of the nozzle.
4.Thoroughly clean the paint pick uppipeand fi lter with
thinner.
5.Clean the basket and nozzle and remove any other
debris or paint that remains.
6. Turn the spray gun upside down and apply a few
drops of light oil to the two apertures (F). This will
lubricate the piston and cylinder.
If your spray gun should require extra internal
cleaning, it may be necessary to disassemble it. If
so the following action should be taken.
1. Remove paint container, pick up pipe and fi lter.
2. Release the nozzle (H), valve (j), piston (K) and
spring (L).
3. Clean the cylinder (M) and all parts thoroughly with
solvent.
4. Apply a few drops of light lubricating oil to the pis-
ton, springand cylinder.
5. Reassemble the spray gun.
TROUBLE SHOOTING
Motor hums but does not spray or irregular spray-
ing.
1. Worn swirl head
Replace swirl head.
2. Pick up pipe not into the right position
Re-adjust pick up pipe.
3. Blocked pick up pipe
Clean with thinner.
4. Blocked nozzle
Clean nozzle.
5. Blocked fi lter
Clean with thinner.
6. Control knob needs adjustment
Adjust.
Atomization is not good.
1. Volume adjustment is not correct.
Adjust
2. Paint too thick
Check viscosity of the paint
F