11
Super Finish 33 PLUS/PRO • Nespray Pro
TYPE OF
MALFUNCTION
WHAT ELSE?
POSSIBLE CAUSE
MEASURES FOR ELIMINATING THE
MALFUNCTION
Delivery rate too
low
Most likely ->
Inlet or outlet valve dam-
aged
Check and replace valves
Material sucked up hardly
Unit is sucking in air
Search for the problem: suction system?,
Inlet valve pusher?, Gaskets inside the inlet
valve? Red inlet installed?...
Suction filter clogged
Clean or replace
Viscosity of the material
too high
If necessary, check valve lift for inlet valve
341247 (2.4 mm)
Unit does not
generate pres-
sure
Material comes out of the re-
turn hose
Relief valve Switch button
badly fastened
Tighten screw (spray into switching positi-
on), or fit new switching button
Pressure can‘t be
released
Multifunction switch in circu-
lation position -> no material
comes out of the return hose
Relief valve Switch button
badly fastened
Tighten screw (spray into switching positi-
on), or fit new switching button
Relief valve clogged
Clean or replace relief valve
Unit loses oil
Gasket of front cover de-
fective / Material Unitec
300 possibly problematic
Replace front cover gasket (Klingersil mate-
rial)
Blowhole in front cover
Check and replace front cover if necessary.
O-rings of the insert in the
pressure insert leaking
Pumphead disassembly - Replace insert O-
rings
Diaphragm fixation leaks
Replace diaphragm
Seal between pressure
insert and hydr. housing
defective/missing
Check and replace
Pressure insert cracked
Replace
(please inform R&D department
Markdorf)
Material comes
out of the paint
head
Material comes out of the in-
let valve housing
Sealing ring 341331 mis-
sing
Mount sealing ring
Paint head damaged by
backwashing
Replace paint head
Aluminium paint head
(SF33 Pro) cracked
Replace
(please inform R&D department
Markdorf)
Manometer
shows strong pul-
sation
Device works normally other-
wise
Glycerine filling in mano-
meter too low (should be
95% -> approx. 5mm be-
low scale top edge)
Top up with glycerine (if necessary, suck off
from old manometer with disposable syrin-
ge)
GB
