rexon Posted October 18, 2008 Report Share Posted October 18, 2008 (edited) Is there any way sticked reversing wheel can be 'fixed' without replacing it with new one? I already tried cleaning in ultrasonic and oiling with 9010 as recommended.... In worst case where can I find the replacement part? symptoms: manual winding is moving rotor, low power reserve... Edited October 18, 2008 by rexon Quote Link to comment Share on other sites More sharing options...
freddy333 Posted October 23, 2008 Report Share Posted October 23, 2008 In worst case where can I find the replacement part? symptoms: manual winding is moving rotor, low power reserve... That symptom is typical of a gummed-up auto-wind module. There are 2 additional gears as well as the bearings in the rotor itself. I would remove & disassemble the module & clean all of the individual parts (including the rotor) in the ultrasonic using a mixture of 1 tablespoon of plain ammonia + 1-2 drops of dish detergent (not dishwasher detergent). Run them through at least 2 complete cycles (10 minutes each). Afterwards, rinse & dry well. Then re lub according to ETA specs & reassemble. That should eliminate the rotor spin during manual winds as well as significantly quiet the rotor during normal (auto) winds. Should you still need replacement parts, try julesborel.com Quote Link to comment Share on other sites More sharing options...
Rolexman Posted October 23, 2008 Report Share Posted October 23, 2008 That symptom is typical of a gummed-up auto-wind module. There are 2 additional gears as well as the bearings in the rotor itself. I would remove & disassemble the module & clean all of the individual parts (including the rotor) in the ultrasonic using a mixture of 1 tablespoon of plain ammonia + 1-2 drops of dish detergent (not dishwasher detergent). Run them through at least 2 complete cycles (10 minutes each). Afterwards, rinse & dry well. Then re lub according to ETA specs & reassemble. That should eliminate the rotor spin during manual winds as well as significantly quiet the rotor during normal (auto) winds. Should you still need replacement parts, try julesborel.com Usefull tip as always! Your input is appreciated! Quote Link to comment Share on other sites More sharing options...
Toadtorrent Posted October 23, 2008 Report Share Posted October 23, 2008 Great tips indeed Freddy...way beyond my skill level but interesting to read nonetheless. As an aside...some users have had success fitting ETA parts into the A7750 movements...others have not. An interesting post on this topic (including reversing gear replacement) can be found here: A7750 Rotor Spinning Thread Quote Link to comment Share on other sites More sharing options...
capice Posted October 23, 2008 Report Share Posted October 23, 2008 interesting read Freddy and Toad...tnx for sharing, the article in the link shares great info....... Quote Link to comment Share on other sites More sharing options...
freddy333 Posted October 23, 2008 Report Share Posted October 23, 2008 I forgot mention that over-oiling can result in symptoms very similar (& as debilitating) to having no oil. Dip about 1/2 of the tip of your oilstick into the oil & that should provide the proper amount for each oiling point. Quote Link to comment Share on other sites More sharing options...
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