Maintenance
24
Warning! Failure to keep blade bolts tight will cause damage to the blade carrier. If this occurs,
refurbish the blade carrier; otherwise, tightening the blade bolt after the blade carrier is damaged will
jam the blade, causing the blade to break. This occurrence can cause serious injury or death.
If blade bolts are allowed to run loose, the obvious danger is for the bolt to come completely
loose, allowing the blade, bolt, and nut to be ejected from the cutter.
Tightening Blade Bolts (
continued
)
The second danger is that when the bolt
is not sufficiently tight, the blade is allowed
excess vertical movement when it strikes an
object, be it something it will cut or something
into which it should not come in contact. In
this situation, the blade is being hammered
against the blade carrier and flexed, or bent,
up around the edge of the blade carrier at
least twelve (12) times per second, generally
fifteen (15) times per second. This situation
will cause the blade to break from fatigue and
to be ejected from the cutter.
The third danger is that, while the second situation is occurring, the blade bolt is also hammering
the underside of the blade carrier; the shoulder of the blade bolt beats an indention around the blade
bolt hole into which the bolt shoulder will fit. When this damage occurs, the blade bolt will pull up
into the indention when the bolt is tightened, causing the blade to jam so that it can no longer pivot
on the blade bolt. A jammed blade will break either from fatigue or from catastrophic occurrence
and will allow the blade to be ejected. A blade carrier damaged in this manner must be taken out of
service immediately. Repair the blade carrier (contact Brown Mfg. Corp. for instructions) and replace
the blades and blade bolts before returning the machine to service.
All three of the described occurrences will cause the blades to break and be ejected. An
ejected blade can and will cause serious injury or death.
REMEMBER: Blades must pivot freely and blade bolts must be tight!
