Da-Lite PROFESSIONAL ELECTROL Gebrauchsanweisung - Seite 7
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TROUBLESHOOTING
SYMPTOM
3. "Down" limit switch incorrect.
4. Noise
NOTE: Screen will operate with a
low-pitched hum.
5. Coasting
6. Roller displaced from mounting
bracket.
7. Fabric hangs crooked.
CAUSE
(a) "Down" limit switch out of
adjustment
(a) Squeaking, rubber end plug rub-
bing on motor.
(b) Grinding. Foreign object in screen
rubbing on roller or fabric.
(c) Gear noise.
(a) Defective brake.
(a) Pin end slipped out of nylon
bearing.
(a) Screen not installed properly.
(b) Fabric has backed up inside case.
(c) Fabric is damaged.
6
SOLUTION
(a) See installation instructions
(a) Center roller between mounting
brackets by pushing roller away
from motor end.
(b) Remove foreign object.
(c) Replace motor assembly.
(a) Replace motor assembly.
(a) Remove pin end mounting.
Realign motor in tube. Reattach
pin end.
(a) Check for level and plumb.
(b) Adjust "down" limit switch slowly
until roller is exposed and wrinkle
comes out, then readjust for
proper drop.
(c) Replace fabric.