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Old 05-10-2010, 09:05 AM   #1
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Sears 10" Radial need Controls 815741 part


I bought a Sears Craftsman #113.198610 from a guy and it has NEVER BEEN USED. It's about 12 years old but never used. The contact point under the battery was a bit crusty and I cleaned that and installed a new battery and that works, but the electronics for the controls do not. Every avenue I have pursued says that part (815741 Controls, R.S.) is no longer available. Can that be true? No one makes or has them anymore? Would be thrilled if anyone has a source. RonTay

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Old 05-10-2010, 09:14 AM   #2
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Sears 10" Radial need Controls 815741 part


I assume you tried Sears website.

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Old 05-10-2010, 09:15 AM   #3
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Sears 10" Radial need Controls 815741 part


Sears was my first try.
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Old 05-10-2010, 09:28 AM   #4
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Sears 10" Radial need Controls 815741 part


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Originally Posted by RonTay View Post
the battery was a bit crusty and I cleaned that and installed a new battery and that works,
the electronics for the controls do not.
Need more details.
What does the battery do?
What controls?
I'm sure you can find elec. equivalent parts elsewhere, but they may not fit mechanically.
If there is an OEM posted on the parts they maybe can provide the elec. specs on these parts.

I assume the saw pulls 15A @ 120v?
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Old 05-10-2010, 09:39 AM   #5
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Sears 10" Radial need Controls 815741 part


The part (Controls, R.S.) controls the miter lock adjustment. The battery powers that portion of the electronics but the control itself does not work. Sears says mfg. no longer makes it and has no recommendation for an alternate/interchangeable part.
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Old 05-10-2010, 09:50 AM   #6
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Sears 10" Radial need Controls 815741 part


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The part (Controls, R.S.) controls the miter lock adjustment. The battery powers that portion of the electronics but the control itself does not work.
I'm having trouble understanding why electronics is necessary for a miter lock adjustment.
I can't imagine that this thing is very complex, electric-wise.

What battery is used? This gives some idea of the current this module needs.

Please post a link to the instruction manual.

What are the 'inputs' to this module? Do you push a button to activate? Is there an interlock switch anywhere that also controls this circuit?

What are the 'outputs'? The miter setting becomes locked? Does this circuit drive a solenoid somewhere?

Inside and outside photos of this module would help, and a schematic would be great. If there are few parts we can reverse engineer the schematic.
Closeups of the individual components in this module, along with any numerical designations, would help.

Perhaps the module OEM will provide info to you? Drawings, specifications. . .?
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Old 05-10-2010, 10:09 AM   #7
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Sears 10" Radial need Controls 815741 part


http://www.hammerwall.com/Download_Manual/45107/
Here is the link ot the manual. The battery is a 6v-- the other questions are beyond me (I am his wife--but perhaps when he returns he will know the answers.)
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Old 05-10-2010, 10:32 AM   #8
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Sears 10" Radial need Controls 815741 part


Thanks for the link.

If nothing on the display works I think the problem is the battery is not making contact.

You need a VOM to confirm/disprove this and you'll need to make up test leads that can get to the
battery-terminal/display-contacts
interface. Strips of aluminum foil with paper as an insulator may work.

The battery capacity is ~600 mAh, so if you can get a battery life estimate from Sears we'll know the expected current draw. It's possible it's around 30 mAdc and this is what your VOM should read if it's put in series with the battery with the display on.

Last edited by Yoyizit; 05-10-2010 at 10:42 AM.
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Old 05-10-2010, 10:46 AM   #9
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Sears 10" Radial need Controls 815741 part


It measures degrees for bevel and miter. It is an LED unit that has sat for many years unused.Any help in locating a replacement would be appreciated.Thanks ,Ron
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Old 05-10-2010, 02:05 PM   #10
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Sears 10" Radial need Controls 815741 part


You have been so helpful. Thank you, will see if I can send you more info.
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Old 05-12-2010, 05:19 PM   #11
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Sears 10" Radial need Controls 815741 part


Hello, That saw was made by Emerson electric according to my info if that is any help . Kerry
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Old 05-12-2010, 05:45 PM   #12
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Sears 10" Radial need Controls 815741 part


Thanks, Sears said Emerson no longer makes the part. :-(
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Old 05-15-2010, 10:20 PM   #13
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Sears 10" Radial need Controls 815741 part


I think Sears is trying to buy back all potential liability with their old radial arm saws: If you send in the motor, they will send you $100.
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Old 05-16-2010, 09:19 AM   #14
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Sears 10" Radial need Controls 815741 part


According to http://www.radialarmsawrecall.com/ the model number of the saw has the Guard kit available.

If you do get the saw up and running, get the free kit.
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Old 03-21-2013, 08:21 PM   #15
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Sears 10" Radial need Controls 815741 part


I have the 815741 part if you still need it. I just put it up on ebay from a lightly used 113.198411 and similar. I have many other parts for that saw.
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