Machine Operation - Grizzly G0813 Owner's Manual

Machine Operation

Symptom Possible Cause
Table(s) difficult to 1. Table lock(s) engaged/partially engaged.
adjust.
2. Infeed table stop blocking upward
movement.
Excessive snipe 1. Outfeed table set too low, or knives set too
(gouge in end of
high.
board that is uneven
with rest of cut).
2. Operator pushing down on trailing end of
workpiece as it leaves cutterhead.
Workpiece stops in 1. Outfeed table set too high.
middle of cut.
Workpiece chipping, 1. Not feeding workpiece to cut "with the
tear-out, or overall
grain."
rough cuts.
2. Dull knives.
3. Workpiece not suitable for jointing.
4. Nicked or chipped knives.
5. Feeding workpiece too fast.
6. Excessive cut depth.
7. Lack of proper dust collection or clogged
dust port.
Fuzzy grain. 1. Wood has high moisture content.
2. Dull knives.
Long lines or ridges 1. Nicked or chipped knives.
that run along length
of workpiece.
Uneven cutter 1. Feeding workpiece too fast.
marks, wavy
2. Knives not properly adjusted.
surface, or chatter
marks across face
of workpiece.
Glossy surface; 1. Dull knives.
scorching or
2. Feed rate too slow.
burn marks on
workpiece.
Workpiece is 1. Workpiece not held with even pressure
concave or convex
against outfeed table during cut.
along its length after
jointing.
2. Workpiece too uneven at start of operation.
3. Outfeed table not parallel with infeed table.
-44-
Possible Solution
1. Completely loosen table lock(s) (Page 4).
2. Loosen/reset infeed table stop bolt (Page 33).
1. Align outfeed table with cutterhead knife at top dead
center (Page 48); adjust height of knives evenly
with outfeed table (Page 45).
2. Reduce/eliminate downward pressure on trailing
end of workpiece as it leaves cutterhead.
1. Align outfeed table with cutterhead knife at top dead
center (Page 48).
1. Turn the workpiece 180° before feeding again.
2. Sharpen/replace knives (Page 45).
3. Ensure workpiece is suitable for jointing (Page 32).
4. Replace knives (Page 45).
5. Reduce feed rate.
6. Reduce cut depth (Page 33).
7. Clear blockages, ensure dust collector is operating
efficiently; upgrade dust collector.
1. Ensure wood moisture content is less than 20%.
Allow to dry if necessary (Page 32).
2. Sharpen/replace knives (Page 45).
1. Replace knives (Page 45).
1. Reduce feed rate.
2. Properly adjust knives (Page 45).
1. Sharpen/replace knives (Page 45).
2. Increase feed rate.
1. Apply even downward pressure against workpiece
throughout entire travel along outfeed side during
cut.
2. Take partial cuts to remove extreme high spots
before doing a full pass.
3. Check/Adjust table parallelism (Page 53).
Model G0813/G0814 (Mfd. Since 3/16)