All apart and ready for cleaning up prior to fresh epoxy, the coil still reading an encouraging 3.7 ohms....
Thank you to our Sponsors
S45-2 Woofer Problem
24 replies
If anyone can mend these speakers its Craig!!
Michael....thank you for those kind words ;¬)
Cleaned up the core and backplate and applied apoxy last night....dried out nicely.
Cleaned up the core and backplate and applied apoxy last night....dried out nicely.
Next task is to soften the glue holding the dust cap in place, this needs to come off so I can see what im doing when putting everything back in place and to give me a clue when centering the core inside the coil.
Remove the old adhesive from magnet and backplate, not a lot there so easy task, and having applied some epoxy join them together....
These don't need to be dead centre but just thereabouts, the accurate alignment will follow when the backplate and core are offered up to the magnet once everything has hardened off.......and in case anyone was wondering about the last pic it was taken through this magnifying glass, my eyes are not what they once where ;¬)
Looking good.
Can you provide more detail about how you softened the glue on the dustcaps? Is the pot part of the process or just a convenient holder for the cone?
Glitch
Can you provide more detail about how you softened the glue on the dustcaps? Is the pot part of the process or just a convenient holder for the cone?
Glitch
Glitch...
Yes the saucepan is simply a convenient diameter to rest the speaker on during removal of the dust cap and drying time of the epoxy, keeps any pressure off the cone and coil. The process of softening the dust cap Login to view image comprises the use of my partners hair dryer providing hot air, this quickly softens the old adhesive which can then be very carefully lifted with a jewellers screwdriver....and in my case the use of a magnifying glass ;¬) takes a bit of patience but is quite straight forward.
Yes the saucepan is simply a convenient diameter to rest the speaker on during removal of the dust cap and drying time of the epoxy, keeps any pressure off the cone and coil. The process of softening the dust cap Login to view image comprises the use of my partners hair dryer providing hot air, this quickly softens the old adhesive which can then be very carefully lifted with a jewellers screwdriver....and in my case the use of a magnifying glass ;¬) takes a bit of patience but is quite straight forward.
The epoxy now dry on the backplate and core it goes back into the vice, 2 or 3mm below the vice jaws
The epoxy holding the magnet to the frame now hardened, more epoxy can be applied to the magnet face. The whole assembly is then, with a firm and steady grip....the magnet wants to pull down and sidewards, lowered onto the core held in the vice jaws carefully.....the coil is exposed to damage at this point as the core is guided inside it. With a clunk the magnet will grab the vice jaws which can then be released to allow the backplate to snap into place. The coil now gripped by the off centre core can be viewed through the dust cap apperture as the alignment jig is fitted tightly to the magnet by the bottom row of screws and the top row of screws adjusted up against the backplate and used to centre the backplate and core using the dust cap apperture as a guide until the it looks central and the cone and coil move freely within the magnetic field......
Please Log In to Reply
You must be logged in as a BeoWorld member to post replies to forum threads.
or
Join BeoWorld
Register to access the forums, reference material, and exclusive member benefits — including our monthly prize draw.
Become a Member