TROUBLESHOOTING FEED PROBLEMS
ON THE THROUGH FEED MOULDER - |
|
Probable Cause |
How to Correct |
Wet lumber. |
With some exceptions most lumber produces a better finish at 7% to 9% moisture content. |
Warped twisted or bowed stock. |
As much as possible keep the bow (concave side) of the board down and to the right guide. |
Wax tar or chemical on stock. |
Trim ends of material. |
Un-square stock. |
Mostly effects short material. Adjust the chop saw to cut square ends. |
Stock dimensions vary more than 1/4". |
Variations in material greater than 1/4" can create jams in the machine. Look into stock preparation. |
Pitch build-up on guides or bed plates. |
When running soft woods it may be necessary to clean the machine more often. Increasing the bed lubrication can help. |
Soft spot or dry rotted area of the material. |
Look into stock preparation. |
Case hardened Material. |
Check the material drying process. |
Dry lumber. |
Moisture contents below 6% become harder to machine. Check the material drying process. |
Knots or slivers of wood jammed in the machine. |
Clean the machine. Look into stock preparation. |
Length shorter than the self-feed length. |
Keep the material butt fed into the machine. Try hopper or conveyor feed systems. |