I am involved on a team that is involved with an 8D project for the following corrective action request:

We had an operator incorrectly orient the .350 gage block when he was wringing the gage blocks together. Because of the size of this block it is almost square which makes it more difficult to visually assemble the block in the correct orientation. This would also apply to the .300 and .400 blocks to some degree as well. Our options are to 1) remove these blocks from the production areas, 2) mark these blocks so as to preclude this problem, or 3) consider physically alter the shape of these blocks so this can't happen (poka-yoke). The only other option is purchase blocks of these sizes that are already physically machined to meet option no. 3. Does anyone know of a supplier that makes replacement gage blocks of these sizes that would meet option 3? Also any other feedback is welcome. Thanks.

I am involved on a team that is involved with an 8D project for the following corrective action request:

We had an operator incorrectly orient the .350 gage block when he was wringing the gage blocks together. Because of the size of this block it is almost square which makes it more difficult to visually assemble the block in the correct orientation. This would also apply to the .300 and .400 blocks to some degree as well. Our options are to 1) remove these blocks from the production areas, 2) mark these blocks so as to preclude this problem, or 3) consider physically alter the shape of these blocks so this can't happen (poka-yoke). The only other option is purchase blocks of these sizes that are already physically machined to meet option no. 3. Does anyone know of a supplier that makes replacement gage blocks of these sizes that would meet option 3? Also any other feedback is welcome. Thanks.


Timkin has a history of some very clever, very simple solutions to complex problems. In that vein, could you put a line on the block with Bluing Ink showing the proper orientation? It does not add dimension to the block, but clearly shows where the anvils of the mic go.

Why would this need an 8D?

Whatever the reason for the 8D buying the simplest option would seem to be purchasing the applicable blocks. If so remember to update the FMEA. It would be a good process improvement.

Al...

Why would this need an 8D?

That's essentially the same as asking why corrective action is necessary, unless you're suggesting that some other CA process would be more appropriate. The prime purpose of 8D (imo) is to provide a record of the structured process used to fix the problem and to make sure that all of the bases are covered.

That's essentially the same as asking why corrective action is necessary, unless you're suggesting that some other CA process would be more appropriate. The prime purpose of 8D (imo) is to provide a record of the structured process used to fix the problem and to make sure that all of the bases are covered.Fair enough, if it's in fact a system problem that I have understood the 8D is intended to address.

Fair enough, if it's in fact a system problem that I have understood the 8D is intended to address.

Use of 8D isn't limited to systemic issues; it's just a structured way to approach the correction of a nonconforming condition. In fact, it's most often used to address local problems, but usually does include requirements to verify whether or not the issue in question affects other processes.

That's essentially the same as asking why corrective action is necessary, unless you're suggesting that some other CA process would be more appropriate. The prime purpose of 8D (imo) is to provide a record of the structured process used to fix the problem and to make sure that all of the bases are covered.

Jim,

8D includes the formation of a Team, wouldn't that be too much?
There are ways to deal with NC's in a less personnel-intensive manner....

Stijloor.

Jim,

8D includes the formation of a Team, wouldn't that be too much?
There are ways to deal with NC's in a less personnel-intensive manner....

Stijloor.


You're absolutely right about being prudent in solving problems, but there's not enough information here for us to tell whether forming a team (which could be comprised of as few as two people) would be a good idea or not.

The 8D team was formed to run concurrent with formal training. This particular gage issue is being run through the 8D process to provide a better understanding of the training as well as apply the training principles with an actual problem. The team is comprised of 3 individuals and 1 mentor. 1 from quality, 1 from production and 1 from engineering. The mentor is a quality person also.

We are currently at D4 and expect to be at D6/7 by early next week. Thanks.