Renfert Basic quattro IS Traduccion Del Manual De Instrucciones Originale página 27

6.8 Shipping Notes
• Empty all blasting tanks�
• Order Renfert transport packaging (Tel� +49 7731 8208-383)�
The return form can be downloaded from the „Advice" section on the Renfert website at
www.renfert.com�
7 Trouble shooting
Problem
No air and no abrasive.
Only air, no or very
little abrasive.
Only air, no or very
little abrasive.
Unit blasts continu-
ously.
Lamp is not alight.
Compressed air
leaking from the foot
switch.
Foot switch fails to
switch on.
Foot switch hoses
cannot be disconnect-
ed from the unit.
Quick-stop not func-
tioning (the nozzle
blasts continuously).
Sound of rushing air
when the unit is oper-
ating.
Possible cause
• Blasting nozzle blocked at the hand-
piece�
• Foot switch connecting lines kinked�
• Tank selection switch in an interme-
diate position�
• The dosage nozzle in the mixing
chamber is blocked due to contami-
nated or moist sand�
• Mixing chamber filter combination
blocked�
• Abrasive contains impurities or is
moist�
• Foot switch connected incorrectly�
• Valve in foot switch is defective�
• Power cord not plugged in�
• Illumination defect�
• Pneumatic hoses reversed�
• No pressure at the compressed air
connection�
• Pneumatic hoses are kinked�
• Push-in connection is not released
(Fig� 2)�
• Pneumatic connections are loose�
• Sandblasting hose worn�
• The connecting pressure at the ex-
ternal air connection (15, Fig� 1) is
too small�
• Outer pressure regulator on the
maintenance unit is altered (fixing
screw is loosen)�
• A small amount of leakage is always
present at the control valves, thus al-
lowing (a minimum) of air to escape�
• Continue to turn the tank selection
switch whilst activating the foot
switch at the same time�
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�
• Cleaning the dosing nozzle, see chapter 6�5�
• Change filter cartridge (22 / Fig. 1) (wrench SW14).
• Replace the abrasive�
• Inspect / correct the foot switch connection�
• Replace foot switch�
• Plug the power cord into the wall outlet�
• Change light using the service or see spare part list�
• Reverse the connections�
• Inspect the compressed air lines and / or the compres-
sor�
• Reposition the hoses�
• Press the push-in connection ring on the hose side
firmly while pulling on the hoses.
Please use the release tools supplied (24)�
• Inspect the pneumatic connections for correct seating�
• Replace the sandblasting hose�
• Increase the external connecting pressure at a min� of
5 bar� The external connecting pressure is displayed
on the manometer (8, Fig� 1)�
• Turn the inner pressure regulator clockwise until stop�
Activa e foot pedal and set the pressure regulator on
the maintenance unit at 5 bar (see manometer)�
• This is not a fault, but instead is the result of a pres-
sure release opening which must not be blocked�
• Only turn the tank selection switch when the foot
switch is not activated�
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