Service Manual
Manufactured by Bersch & Fratscher GmbH
8
version 10/2008
OPTIMA 2100
8.9 Filter selection
The mesh size of the filter should not be bigger than the nozzle size!
8.10 Adjustment of pre-air
a.) Unscrew breech ring cap 1240-7 and take out needle.
b.) Release needle carrier 1248-13 with screw wrench SW 6, to counter hold the needle end 1248-14.
c.) Adjust needle:
More pre-air - screw out needle
Less pre-air - screw in needle
d.) Fixate needle, by tightening needle carrier 1248-13 - to counter hold the needle end 1248-14.
(see illustration 4)
9. Maintenance
9.1 Cleaning
Immediately after usage or longer interruptions the spray gun has to be scavenged with
the relevant thinner for the paint in question (cleaner).
In this case it is necessary to scavenge the spray gun with thinner with the assistance
of the feeding pump until the cleaner leaves the gun clear. Never immerse the paint
spray gun in the cleaning agent.
9.2 Cleaning of nozzle
a.) Adjust the pump pressure at 0 bar, release trigger 1248-U4 completely - pressure of hose relieves.
b.) Secure spray gun by a 90 ° clockwise rotation of the safety lever 1237-3
c.) Remove the lock nut 1248-4 by hand
d.) Take off nozzle set 1248-U2 and blow it through, from the front side
e.) Insert nozzle set 1248-U2 and adjust it
f.) Tighten lock nut 1248-4 by hand
(see illustration 1)
9.3 Cleaning of filter
We recommend to clean the filter (depending on the used paint) from time to time in order to avoid that the paint
residues get hard which could make the dismantling impossible.
a.) Put pump into a pressure less condition.
b.) Depending on the paint tube - see spare parts drawing -.
Release lower paint hose part 1248-U7 with a screw wrench SW17
(see illustration 1)
Attention !!
Make sure to support the upper paint hose part of the paint tube by clamping it with an additional screw
wrench SW 11.
c.) Unscrew the filter downwards out of the paint tube.
d.) Clean the filter with a brush (not a wire brush)
Mounting of the parts vice versa, please be thoroughly and take care of the right position
of o-ring 104-0022 in the upper paint hose part of the paint tube. Filter should jut out from paint tube
approx.. 4 mm.
9.4 Lubrication
O-ring, needle guidance, needle seal, as well as lever bearing need to be lubricated regularly with
silicone-free oil and/or silicone-free grease.
10. Replacement of parts
In any case detach the gun from the pump!!!
10.1 Paint needle
a.) Unscrew breech ring cap 1240-7
b.) Take out needle with pressing disc and spring at its end backwards.
c.) Insert new needle with pressing disc and spring. (see illustration 1)
To Next Page
Loading...