Technical Specifications - Mestra R-080233 Manual Del Usuario

English
Nozzle
If the nozzle came loose, glue it to its holder with
cianocrilate. The nozzle should be level with the
inner surface of the nozzle holder, to make sure
that the distance from the injector to the nozzle
is 4.5 mm and the Venturi effect takes place.
§ Always use high quality aluminium oxide.
Talleres Mestraitua, S.L. recommends the use
of MESTRA aluminium oxide. The gun (Ø 3 mm
nozzle) can blast aluminium oxide up to particles
of Ø 300 micron. If you use aluminium oxide
particles bigger than Ø 300 micron, you may
need to remove the filter (K) placed at the end of
the gun's pipe, inside the hopper (Fig. 2).
Without any filter obstructions in the nozzle will
be more frequent.
MAINTENANCE OF THE PISTOL FLEX
Do not bend or twist excessively the flex that holds
the pistol and allows positioning it. It could break
and then the abrasive would not go up the pipe. A
spare flex is supplied with the unit. When needed,
replace it following these steps:
1. Loosen the two lower bolts in the back cover
and remove the cover.
2. Undo the cap nut and the normal nut that hold
the flex from the back cover. They may be tight
due to the sealant.
3. Disengage the white pipe from the pistol by
pulling it.
4. Disengage the blue pipe from the pistol by
pulling it while you press the adaptor.
5. Unscrew the flex from the body of the pistol with
a pair of pliers. It may be very tight due to the
sealant. Hold the flex as near the pistol as
possible.
10
Injector
4,5
6. Screw in the spare flex. Apply a sealant to
prevent air leaks. Do not twist the flex. Hold the
flex as near the pistol as possible.
7. Engage the two pipes again.
8. Fix the flex to the back cover with the two nuts.
Apply a sealant to prevent air leaks.
UNIT CONTROLS PLASTIC PROTECTOR
PRECAUTIONS
♦ Never exceed a 6 bar pressure (0.6 MPa). The
optimal working pressure lies between 2 and 5
bar (0.2 and 0.5 MPa).
♦ Always work with the cabin lid closed and
correctly protected. Use protection mask and
goggles.
♦ Connect the cabin's outlet hose to an aspiration
unit.
♦ If the protection sleeves (J) tear or wear, replace
them immediately.
♦ Do not allow children or unskilled personnel to
operate the machine.
♦ Always use a high quality aluminium oxide (it is
strongly recommended
aluminium oxide). A very low quality aluminium
oxide can produce obstructions in the nozzle.
♦ Make sure that the aspiration unit can suck
abrasive particles. We strongly recommend the
MESTRA Eolo Plus R-080531 aspiration unit.
♦ Connect the power cord to a grounded 230 V,
50/60 Hz power source.
♦ In case of leaks in the pressured air circuit,
consult the installation engineer immediately.

TECHNICAL SPECIFICATIONS

Height:
Width:
Depth:
Weight:
Working pressure:
Max. air consumption:
Voltage:
Power consumption:
In order to protect the
unit controls from
abrasive powder, you can
stick the supplied plastic
protector on the housing
(see the picture).
MESTRA
to use
550 mm
430 mm
500 mm
20 kg
2 - 5 bares
0.2 - 0.5 MPa
90 litros/min. a 5 bares
230 V, 50/60 Hz
10 W