Renfert basic professional User manual

© Renfert GmbH TM 04/02
Index
basic professional
No. 2941
Areas of Caution
Never operate a sandblaster without a suitable dust extractor or suitable personal protective clothing as
this can be detrimental to your health.The type of dust extractor must relate to the type of dust produced
by your sandblasting work. It is imperative to adhere to your trade association regulations
(ZH 1/487).
Improper use can risk the danger of damage to eyes and skin.Never blast towards your eyes or onto
unprotected skin.
Before operating, check that the tank lid is correctly fitted. An incorrectly sealed lid can work loose with a
force similar to an explosion.There is thus a risk of harm from flying components and from the sudden
escape of abrasive.
Always disconnect the unit from the compressed air and electricity supplies before carrying out any
maintenance.
Never clean the tank or tank lid with cleaning fluids containing solvents! Solvents may cause a build-up of
micro-cracks in the acrylic therefore creating a risk of explosion.
As long as only the compressed air supply hose is connected, do not operate the foot-switch as the hose
will thrash around and quite possibly cause injury.
Before changing the fluorescent lamp make sure the lamp is unplugged.
Do not push or bend the lamp when exchanging (danger of breaking). If necessary wear gloves or
use a cloth for protection.
Troubleshooting Guide
The basic professional is a high quality product from Renfert. Should the unit not function properly please
refer to the following guide:
Fault Cause Remedy
No air and • Nozzle on • Unsrew the nozzle from the
no abrasive. handpiece handpiece and blow through it.
blocked. • Activate the foot switch to
clear the jet hose without
nozzle.
• The hose • Check the hose and remedy
connection situation.
to the foot
switch is
bent.
Air but no / • Dosage • Remove the tank lid.
little sand. nozzle • Seal the standpipe with isola-
(middle nozzle) ting tape or Cellotape.
in tank • Replace lid.
blocked. • Seal the nozzle on the hand-
piece with finger and activate
foot switch several times.
• Open tank lid and remove the
tape from the standpipe.
Replace lid and commence
sandblasting.

© Renfert GmbH TM 04/02
Index
Fault Cause Remedy
• Filter combi- • Fit a new filter:
nation in • Remove the air supply from
mixing cham- the mixing chamber.
ber blocked. • Unscrew the screw.
• Remove the filter inserts.
• Clear the hole in mixing cham-
ber by pushing through a 1 mm
piece of wire.
• Fit new filter inserts a follows:
1. sieve
2. thin filter
3. thick filter
4. sieve
5. distance ring
Replace the couplings in the
reverse order. Ensure that no
abrasive has accumulated in the
threads.
Caution: Never use the unit
without filters !
• Abrasive ma- • Change abrasive material.
terial is damp
or impure.
Lamp does • Mains cable is • Connect up mains cable.
not function. not connected.
• Fluorescent • Replace fluorescent lamp.
lamp defective.
• Electronic • Replace by service or refer to
defective. spare parts list.
Unit blasts • Foot switch • Check the foot switch
continuous- is fitted in- connection.
ly and stops correctly.
when foot
switch is
activated.
Compressed • Pneumatic • Change the connectors.
air escapes hoses have
from the been connec-
switch. ted incorrect-
ly
Foot switch • No pressure • Check the compressed air
does not is being hoses and compressor.
switch on. applied to the
compressed
air inlet.
• Pneumatic • Re-arrange the hoses.
hoses have
been kinked.

© Renfert GmbH TM 04/02
Index
Cleaning / Maintenance
To clean the unit use only cleaning fluid that is free from solvents (e.g.soapy water).
To clean the blasting chamber remove the inner tray and vacuum it out with a suitable dust extractor.
Condensed water: Occasionally check whether water has formed in the maintenance unit. If so, press the
drainage valve (B) on the maintenance unit (see Fig.5).
To change the nozzles: Check that the screw thread of the hand piece is free from abrasive when chang-
ing the nozzle.
To change the viewing pane:To change the viewing pane loosen the crosshead screws on the top hinge.
Remove the protective foil from the coated side of the new pane. The new pane can now be easily
mounted by feeding it through the hinge from one side and then carefully tightening the cross-head
screws. Make sure the coated side is facing into the blasting chamber.
To change the blasting hoses:The hoses wear out due to the abrasive.In case abrasive or air escapes
from the hose, the blasting hose has to be exchanged immediately.To do this, the basic professional
should be disconnected from the compressed air supply.Then follow the steps as described in the
manual enclosed to the hose kit (art.no.21.9162).
To change the fluorescent lamp: Unplug the mains cable.Pull lamp together with cover out of the frame
and remove the cover.Remove frame from dust using a dust extractor or with pressured air. Put cover
onto the new lamp and insert into frame.
Use Renfert lamp assembly only (no. 92900-0002, Osram Dulux S/E 11W / 21-840 or Philips PL-S
11 W / 840 / 4 P fluorescent lamp).
Do not push or bend the lamp when exchanging (danger of breaking). If necessary wear gloves or use a
cloth for protection.
Technical Specifications
Power Supply: 230 / 240 V, 50-60 Hz
90-120 V, 50-60 Hz
Power Consumption (Lamp): 11 W
Working Pressure: 1-6 bar
Connecting Pressure: 10 bar max.
Air consumption: according to nozzle max. 120 l/m
Size of pipe union: 40 x 2.5 mm
Dimensions (WxDxH): 336 x 376 x 250 mm
Weight (unfilled) 2-tank version: 6.7 kg without foot switch
7.1 kg with foot switch
Weight (unfilled) 1-tank version: 5.9 kg without foot switch
6.3 kg with foot switch
Noise Level according to
German standard DIN 45635-01-KL3: < 70 dBA