20
Troubleshooting
Operating Problems
Problem
Possible Cause
Solution
Snipe.
(Snipe cannot be
eliminated, but can
be minimized so
as to become
negligible.)
Table rollers not set properly.
Inadequate support of long
boards.
Uneven feed roller pressure
front to back.
Dull Knives.
Lumber not butter properly.
Adjust rollers to proper height.
Support long boards with extension rollers.
Adjust feed roller tension.
Sharpen knives.
Butt end to end each piece of stock as they
pass through.
Fuzzy Grain
Planing wood with a high
moisture content.
Dull knives.
Remove high moisture content from wood by
drying.
Sharpen or replace.
Torn Grain
Too heavy a cut.
Knives cutting against grain.
Dull knives.
Adjust proper depth of cut.
Cut along the grain.
Sharpen knives.
Rough/Raised
Grain
Dull knives.
Too heavy a cut.
Moisture content too high.
Sharpen knives.
Adjust proper depth.
Remove high moisture content from wood by
drying.
Rounded, glossy
surface
Dull knives.
Feed speed too slow.
Cutting depth too shallow.
Sharpen or replace knives.
Increase speed.
Increase depth.
Poor feeding of
lumber
Inadequate feed roller
pressure.
Planer bed rough or dry.
Transmission v-belt slipping.
Surface of feed rollers too
smooth.
Adjust feed roller tension. If proper tension
cannot be achieved, replace feed rollers.
Clean pitch and residue, and wax planer table.
Tighten transmission v-belt.
Lightly roughen the feed roller surface with
sandpaper.
Mechanical and Electrical Problems
Problem
Possible Cause
Solution
Uneven depth of
cut side to side.
Knife projection.
Cutterhead not level with bed.
Adjust knife projection.
Level bed.
Board thickness
does not match
depth of cut scale.
Depth of cut scale incorrect.
Adjust depth of cut scale.
Summary of Contents for 708528
Page 25: ...25 Head Assembly Exploded View ...
Page 29: ...29 Base and Column Assembly ...
Page 31: ...31 Gearbox Assembly ...
Page 33: ...33 230V 5HP Single Phase A2 14NO 17 13NO O ManAuto 97 95 96 98 R R 4T2 6T3 2T1 3L2 5L3 1L1 A1 ...
Page 34: ...34 230V 5HP Three Phase 4T2 ManAuto 97 A2 95 R 96 O R 14NO 6T3 17 98 2T1 3L2 13NO 5L3 1L1 A1 ...
Page 35: ...35 460V 5HP Three Phase 4T2 ManAuto 97 A2 95 R 96 O R 14NO 6T3 17 98 2T1 3L2 13NO 5L3 1L1 A1 ...
Page 36: ...36 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...