Make sure every cutter has the same length and edge angles as illustrated .
Guide Bar
z
Reverse the bar occasionally to prevent partial wear.
z
The bar rail Should always be square.Check for wear of the bar rail. Apply a ruler
to the bar and the outside of a cutter. if a gap is observed between them. the rails
is normal. Otherwise. the bar rail is worn. Such a bar needs to be corrected or
replaced.