Holzstar 5904026, Operating Instructions Manual

Page: 31 / 58

Troubleshooting tables
ADH-Series | Version 1.02 31
10.2 Troubleshooting table - Planer
Problem Possible cause Solution
Snipe
NOTE: Snipe can be minimized but not eliminated.
The knife is set higher
than the output table. Align the cutting head
knives and the output
table.
(See „Setting the Cut-
ting Head Knives“)
Insufficient support of a
long board. Support a long board
with extension rolls.
Uneven feed roller pres-
sure from front to rear. Adjust the feed roller
tension.
Blunt knives. Sharpen or replace the
knives.
Lumber not butted pro-
perly Butt end to end each
piece of stock at the
pass through.
Structure is fibrous.. The wood has a high
moisture content. Allow the wood to dry or
use a drying chamber.
Blunt knives. Sharpen or replace the
knives/knife inserts.
Torn grain Too heavy a cut.. Adjust proper depth of
cut
The knives cut against
the grain. .Cut in grain direction.
Blunt knives. Sharpen or replace the
knives
Rough / Raised Grain Blunt knives. Sharpen or replace the
knives
Too heavy a cut.. Adjust proper depth of
cut
Moisture content too
high. Make sure that the
wood dries.
Rounded, glossy surface Blunt knives. Sharpen or replace the
knives
Feed speed too slow Increase the speed.
Cutting depth too
shallow. Increase the depth.