John Baum
08-22-2011, 5:19 PM
I made the mistake of setting a slight angle on my Bosch 1677M Wormdrive Saw and realizing I needed to correct the resulting rip cut for squareness. When I checked the saw carefully, I discovered that I could not quite get the blade to square properly with the shoe.
That led me to a study of the bevel adjustment mechanism. I found that the square stop would allow feeler gauge blades of about 0.040 thickness to pass freely. I pulled the blade all the way up to get better access to the mechanism. It helped to lube all the pivot points with a bit of light oil. As I looked more carefully, it appeared to me that the real square stop was the fit of the tightening bolt against rest of the bevel adjustment frame. I filed it lightly with a pattern file and the squareness of the blade improved. I looked at the allen set screw in the shoe and concluded that were I to run it up high enough to contact the square stop it would probably quickly fall out because so few threads would be holding it in place.
Otherwise I like the saw a lot. How often do others change the oil in their saw? How many saw the suggestion (warning really) to change the oil in a new saw after the first 10 hours of use? To save others the searching, the recommended oil is Bosch part number #80111 oil. Apparently it is identical to the Skill oil sold under the same number.
FWIW, here is a link to a generic description of the process. It is also in the manual.
http://www.toolsandmachinery.com/blog2/?cat=5
If you've lost your manual, you can download it here:
http://www.boschtools.com/service/productservices/pages/ManualsandDiagramsResults.aspx?type=both&modelNum=1677m
There are links to both the manual and a parts diagram. Alternatively, you can access one of those 'rip off' sites that will charge you $9.99 to download each.
Here's a photo to make clear what I'm talking about.
http://img703.imageshack.us/img703/8278/boschsawadjustment.th.jpg (http://imageshack.us/photo/my-images/703/boschsawadjustment.jpg/)
Uploaded with ImageShack.us (http://imageshack.us)
Enjoy your saw,
baumgrenze
That led me to a study of the bevel adjustment mechanism. I found that the square stop would allow feeler gauge blades of about 0.040 thickness to pass freely. I pulled the blade all the way up to get better access to the mechanism. It helped to lube all the pivot points with a bit of light oil. As I looked more carefully, it appeared to me that the real square stop was the fit of the tightening bolt against rest of the bevel adjustment frame. I filed it lightly with a pattern file and the squareness of the blade improved. I looked at the allen set screw in the shoe and concluded that were I to run it up high enough to contact the square stop it would probably quickly fall out because so few threads would be holding it in place.
Otherwise I like the saw a lot. How often do others change the oil in their saw? How many saw the suggestion (warning really) to change the oil in a new saw after the first 10 hours of use? To save others the searching, the recommended oil is Bosch part number #80111 oil. Apparently it is identical to the Skill oil sold under the same number.
FWIW, here is a link to a generic description of the process. It is also in the manual.
http://www.toolsandmachinery.com/blog2/?cat=5
If you've lost your manual, you can download it here:
http://www.boschtools.com/service/productservices/pages/ManualsandDiagramsResults.aspx?type=both&modelNum=1677m
There are links to both the manual and a parts diagram. Alternatively, you can access one of those 'rip off' sites that will charge you $9.99 to download each.
Here's a photo to make clear what I'm talking about.
http://img703.imageshack.us/img703/8278/boschsawadjustment.th.jpg (http://imageshack.us/photo/my-images/703/boschsawadjustment.jpg/)
Uploaded with ImageShack.us (http://imageshack.us)
Enjoy your saw,
baumgrenze