Troubleshooting; Operating Problems; Mechanical And Electrical Problems - Jet JWP-208HH Operating Instructions And Parts Manual

Troubleshooting

Operating Problems

Problem
Snipe. Table rollers not set properly.
Inadequate support of long
boards.
(Snipe cannot be
eliminated, but can Uneven feed roller pressure
be minimized so front to back.
as to become
Dull Knives.
negligible.)
Lumber not butter properly.
Fuzzy Grain Planing wood with a high
moisture content.
Dull knives.
Torn Grain Too heavy a cut.
Knives cutting against grain.
Dull knives.
Rough/Raised Dull knives.
Grain
Too heavy a cut.
Moisture content too high.
Rounded, glossy Dull knives.
surface
Feed speed too slow.
Cutting depth too shallow.
Poor feeding of Inadequate feed roller
lumber pressure.
Planer bed rough or dry.
Transmission v-belt slipping.
Surface of feed rollers too
smooth.

Mechanical and Electrical Problems

Problem
Uneven depth of Knife projection.
cut side to side.
Cutterhead not level with bed.
Board thickness Depth of cut scale incorrect.
does not match
depth of cut scale.
Possible Cause
Possible Cause
Solution
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.
Remove high moisture content from wood by
drying.
Sharpen or replace.
Adjust proper depth of cut.
Cut along the grain.
Sharpen knives.
Sharpen knives.
Adjust proper depth.
Remove high moisture content from wood by
drying.
Sharpen or replace knives.
Increase speed.
Increase depth.
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.
Solution
Adjust knife projection.
Level bed.
Adjust depth of cut scale.
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