Troubleshooting

Operating Problems

Problem

Snipe.

Note: Snipe can be minimized but not eliminated.

Fuzzy Grain

Torn Grain

Rough/Raised Grain

Rounded, glossy surface

Poor feeding of lumber

Possible Cause

Solution

 

 

Table rollers not set properly.

Adjust rollers to proper height.

Inadequate support of long

Support long boards with extension rollers.

boards.

 

Uneven feed roller pressure

Adjust feed roller tension.

front to back.

 

Dull Knives

Sharpen knives.

Lumber not butter properly.

Butt end to end each piece of stock as they

 

pass through.

 

 

Planing wood with a high

Remove high moisture content from wood by

moisture content.

drying.

Dull knives.

Sharpen or replace.

 

 

Too heavy a cut.

Adjust proper depth of cut.

Knives cutting against grain.

Cut along the grain.

Dull knives.

Sharpen knives.

 

 

Dull knives.

Sharpen knives.

Too heavy a cut.

Adjust proper depth.

Moisture content too high.

Remove high moisture content from wood by

 

drying.

 

 

Dull knives.

Sharpen or replace knives.

Feed speed too slow.

Increase speed.

Cutting depth too shallow.

Increase depth.

 

 

Inadequate feed roller

Adjust feed roller tension. If proper tension

pressure.

cannot be achieved, replace feed rollers.

Planer bed rough or dry.

Clean pitch and residue, and wax planer table.

Transmission v-belt slipping.

Tighten transmission v-belt.

Surface of feed rollers too

Lightly roughen the feed roller surface with

smooth.

sandpaper.

 

 

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Jet Tools JWP-208 operating instructions Troubleshooting, Operating Problems, Possible Cause Solution