9
TOWING VEHICLE
The truck that will be used to tow the FINN BB302 Bark Blower must be equipped with
a 2-5/16 in. ball or pintle-type hitch. The tow vehicle must also be able to support a
600 lbs. (272 kg) hitch load as well as safely tow a trailer with a GVWR of 6000 lbs. (2722 kg).
SELECTING A MULCHING MATERIAL
Drilling, sawing, sanding or machining wood products
can expose you to wood dust, a substance known to
cause cancer and / or respiratory problems. Avoid inhaling wood dust and use
a dust mask or other safeguards for personal protection.
Several factors must be considered when selecting material to be conveyed through the Bark
Blower. The variety of the wood used, how it is processed, its moisture content, and the presence
of foreign objects all effect the ability of the Bark Blower to convey the mulch at a uniform and
acceptable rate.
The mulch material must be processed and/or screened so that a minimum ammount of material
is over 2 in. (5.1 cm) in any direction, with no material exceeding 4 in. (10.2 cm) in length. The
Bark Blower is not a wood processor. The Bark Blower only reduces mulch fibers when they
protrude above the rotary air valve vanes. As the vanes rotate past the knives, the protruding
fibers are sheared off. If the mulch contains long or large fibers and/or the wood fibers are harder
to cut, then the machine’s throughput will be reduced. For example, if two mulches have the
same mix of material sizes that the Bark Blower rotor must cut, but one is a softwood like pine
and one is a hardwood such as oak, the pine would go through at a higher rate because it is
easier to cut. Two characteristics must be considered when selecting a material: the “greenness”
of the wood, and the moisture of the mulch as a whole. Wood that is well-seasoned is easier to
cut than “green” wood. Seasoned wood also processes better, making a less stringy mulch. If the
mulch has a high moisture content, it may stick together and form a "bridge" inside the hopper
or a blockage in the discharge hose. If a bridge occurs, no material will be processed until the
bridge is broken or the blockage is removed.
Avoid using mulches that contain any hard foreign objects such as
rocks, nails, steel, cans, glass, etc. Failure to comply could result in
minor personal injury, product damage, or property damage.
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