Da-Lite PROFESSIONAL ELECTROL Buku Instruksi - Halaman 8
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Troubleshooting
Symptom
" Down" limit switch incorrect.
Noise.
NOTE: Screen will operate with
a low-pitched hum.
Coasting.
Roller displaced from
mounting bracket.
Fabric hangs crooked.
8
Cause
" Down" limit switch out of adjustment.
Squeaking, rubber end plug rubbing on motor.
Grinding. Foreign object in screen rubbing on roller
or fabric.
Gear noise
Defective brake.
Pin end slipped out of nylon bearing
Screen not installed properly..
Fabric has backed up inside case.
Fabric is damaged.
Solution
See installation instructions.
Center roller between mounting brackets by pushing roller
away from motor end.
Remove foreign object.
Replace motor assembly..
Replace motor assembly.
Remove pin end mounting. Realign motor in tube.
Reattach pin end.
Check for level and plumb.
Adjust "down" limit switch slowly until roller is exposed and
wrinkle comes out, then readjust for proper drop.
Replace fabric.