Servicing; General Servicing; High-Pressure Hose; Repairs On The Unit - WAGNER Super Finish 31 Betriebsanleitung

Servicing

Type of malfunction
Unit exerts pressure
and reaches pressure.
If the spray gun is re-
moved, the pressure
falls appreciably
Hard pressure jolts and
excessive vibration on
the spray gun and unit
10. Servicing

10.1 General servicing

Servicing of the unit should be carried out once
annually by the WAGNER service.
1. Check high-pressure hoses, unit connection
line, plug and socket for damage.
2. Check inlet valve, outlet valve, diaphragm and
filter for wear.
3. Check oil level (fig. 18) in the horizontal set-up.

10.2 High-pressure hose

Check high-pressure hose optically for any cuts or
bulges in particular at the connection to the fitting. Union
nuts must be able to be turned freely.
Super Finish 27 • 31
Possible cause
Relief valve does not close.
Coating material escapes at switch posi-
tion S (spray) from the return pipe.
High-pressure hose for diaphragm unit not
suitable
Outlet valve parts worn
max.
min.
g
Measure for elimination of malfunction
Screw out relief valve from paint section
and clean or replace, see page 39, point
11.5.
Use original WAGNER high-pressure hose.
Replace outlet valve parts, see page 38,
point 11.3.

11. Repairs on the unit

Switch off unit A (OFF).
Pull mains plug from the socket before
all repairs.
Danger
11.1 Inlet valve trigger (fig. 19)
with Super Finish 31
1. Screw out inlet valve trigger with spanner
17 mm.
2. Replace stripper (1) and O-ring (2).
2
1
11.2 Inlet valve (fig. 20)
1. Super Finish 27
Place accompanying spanner 36 mm on the
inlet valve housing (1).
Super Finish 31
Place accompanying spanner 30 mm on the
trigger housing (2).
2. Release inlet valve housing (1) or trigger hou-
sing (2) with light blows of a hammer on the
end of the spanner.
3. Screw out inlet valve housing or trigger housing
with the inlet valve (3) from the paint section.
Repairs on the unit
37