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REPAIRS AT THE UNIT
10.6
REMEDY IN CASE OF FAULTS
TYPE OF MALFUNCTION
Unit does not start
Unit does not suck in
Unit does not gener-
ate pressure
WHAT ELSE?
POSSIBLE CAUSE
Indicating lamp does
No voltage applied
not illuminate
Indicating lamp
Unit fuse has triggered
illuminates
Inlet/outlet valve clogged
/ worn
Air bubbles do not exit
at the return hose
Pressure control valve
turned down completely
Unit is sucking in outside
Air bubbles exit from
the return hose
Unit has sucked in
Air in the oil circuit
Suction filter clogged
Unit reached pres-
sure, but the pressure
Paint cannot be worked in
collapses, also at the
pressure gauge, during
spraying.
Unit reached pressure,
but the pressure col-
Clogged filter do not let
lapses during sprayin.
pressure gage still
shows high pressure
Tip clogged
Unit does not generate
the max. pressure pos-
sible. Paint neverthe-
Relief valve defective
less exits at the return
hose.
Inlet valve worn
After a longer period
of time, the pressure
drops or the perfor-
Outlet valve worn
mance of the suction
tube decreases .
Tip worn
air
this state. Due to its prop-
erties the paint clogs the
valves (inlet valve) and the
delivery rate is too low.
enough paint pass
17
MEASURES FOR ELIMINATING THE MALFUNCTION
Check voltage supply
Let the motor cool down
Remove the valves and clean then (-> refer to
Section Pkt.10.1/10.2) / replace worn parts
Turn the pressure control valve to the right un-
til the stop is reached
Check if Suction system is properly tightened
Suction pipe joint leaky? -> replace O-ring
Check if the inlet valve housing is tightned
enough.
Bleed the oil circuit in the unit by turning the
pressure control valve completely to the left
(until overturning) and let it run approx. 2-3
min. The turn the pressure control valve to the
right and set the spraying pressure (repeat
Process several times ,if necessary).
Check the suction filter. If necessary, clean/
replace
Dilute the paint
Check/clean the (high-pressure filter) gun filter
Clean the tip
Please contact Wager Customer Service
Replace inlet valve
Replace outlet valve
Replace tip
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