Troubleshooting Guide - Renfert basic classic Instrucciones Para El Servicio

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Abrasives
Cobra aluminium oxide
No. 1594-1105 25 µm [500 mesh], white 5 kg canister
No. 1594-1205 50 µm [270 mesh], white 5 kg canister
No. 1594-2220 50 µm [270 mesh], white 20 kg bucket
No. 1584-1005 90 µm [170 mesh], white 5 kg canister
No. 1583-1005 110 µm [150 mesh], white
5 kg canister
No. 1583-1020 110 µm [150 mesh], white
20 kg bucket
No. 1587-1005 125 µm [115 mesh], pink 5 kg canister
No. 1587-1020 125 µm [115 mesh], pink 20 kg bucket
No. 1585-1005 250 µm [60 mesh], white 5 kg canister
No. 1585-1020 250 µm [60 mesh], white 20 kg bucket

14. Troubleshooting Guide

Problem
Possible cause
No air and no
• Blasting nozzle blocked at the
abrasive.
• Foot switch connecting lines
• Switch set to an intermediate
Only air, no or very
• Metering nozzle (centre
little abrasive.
• Mixing chamber fi lter
• Abrasive contains impurities
hand-piece.
kinked.
position (only on the 2-tanks
version).
nozzle) blocked at the tank.
combination blocked.
or is moist.
Rolloblast glass beads
No. 1594-1305 50 µm [400-200 mesh] 5 kg canister
No. 1594-2312 50 µm [400-200 mesh]
12.5 kg canister
No. 1589-1005 100 µm [170-100 mesh] 5 kg canister
Corrective action
• Unscrew the nozzle from the hand-piece and blow it out.
• With the nozzle removed, blow out the blasting hose by
activating the foot pedal.
• Inspect/correct the connection lines.
• Turn the switch until you feel it click into place.
• Unscrew the tank cover.
• Seal the top of the riser pipe (blue hose) with a piece of
insulation or Sello tape.
• Reinstall the cover.
• Hold your fi nger over the nozzle on the hand-piece and
repeatedly activate the foot switch.
• Unscrew the tank cover and remove the tape from the riser
pipe. Reinstall the cover and continue normal sandblasting.
Install new fi lter sets:
- Part no. 90002-8889
- Part no. 90002-8888
(Refer to the insert for the appropriate fi lter set):
• Disconnect the compressed air supply to the mixing
chamber.
• Unscrew the plug-in connection.
• Remove the old fi lter sets.
• Run a thin (1 mm) wire through the opening in the mixing
chamber.
• Install new fi lter sets as follows (number of components
according to the fi lter set– smooth (colour marked) side
facing the mixing chamber):
1.
Screen
2.
Filter, thin
3.
Filter, thick
4.
Screen
5.
Spacer
Reinstall the screw-on connections in the reverse order.
Make certain their is no abrasive residue on the threads.
Attention: Never operate the unit without fi lters!
Do not reinstall used fi lter sets!
• Replace the abrasive.
25-70 µm
70-500 µm

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