Table of Contents
Advertisement
This section covers the most common processing problems encountered in jointing and what to do about
them.
Problem:
Snipe (Tail of the board is cut slightly deeper as it passes over the cutterhead).
Cause:
Outfeed table set too low.
Remedy:
Readjust outfeed table.
Problem:
Work stops in the middle of the cut.
Cause:
Outfeed Table is set too high.
Remedy:
Reset outfeed table to its proper height.
Problem:
Chipping
Causes:
Most commonly found around knots or in woods with wild or conflicting grain direction, chip
ping can also be caused by dull knives, forcing the board over the cutterhead too fast, or tak-
ing too deep a cut in one pass. Also, if you are going to joint end-joined-stock, try to orient the
lumber so that all pieces have common grain direction. Otherwise, pieces fed into the cutter
head against the grain will be prone to chip out.
Remedies: Sharpen the knives, slow down your feed rate, and stick to the
essary.
Problem:
Fuzzy grain
Causes:
The board either has too high a moisture content or too much surface wetness. Some species,
such as basswood, will have fuzzy grain no matter how dry it is or how well you plane it. On the
other hand, the knives may be dull or ground at an incorrect bevel.
Remedies: Make sure your stock has an acceptable moisture content, and that the jointer knives are sharp
and ground at the correct bevel.
Problem:
Lines or ridges in board
Cause:
Nicked or chipped knives
Remedy:
Shift or sharpen knives, then reset them.
Problem:
Uneven knife marks on board
Cause:
This is an indication that one or more knives are out of alignment.
Remedy:
Reset knives.
Problem:
Wavy surface on board (chatter).
Causes:
The stock is probably being fed too fast or knives are incorrectly set, one knife is doing all the
work.
Remedies: Slow down your feed rate or check the knives to ensure that they are all within 0.001". Reset
them if they are not. Knives may also need sharpening.
G1182 6" Heavy-Duty Jointer
TROUBLESHOOTING
1
⁄
" rule. Try
1
⁄
" or less, if nec-
16
32
-25-
- Quick Links:
- Knife Setting Gauge
- Knives
- Adjustments
- Outfeed Table
Hide quick links:
Advertisement
Table of Contents
