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1 1 5 0 / 1 1 5 5 H A Y B U S T E R T U B G R I N D E R O P E R A T I N G I N S T R U C T I O N S
1.8 Personal protection equipment
Operators and authorized observers of the Tub Grinder are recommended to wear head, eye, and ear protection. No
loose clothing is allowed.
1.9 Fire Prevention
Grinding hay in a tub grinder produces a large amount of potentially combustible material. The risks of fire can be
significantly reduced with proper operating and maintenance procedures. This does include frequent removal of dust,
debris, and other combustible materials.
Most of the products that are ground are dry and the grinding process can produce fine, dusty material. The grinding
process can produce heat and the spinning rotor will circulate air within the grinding chamber. For a fire to start, fuel,
oxygen and heat in sufficient quantity, must be present. During normal operation and with a properly maintained tub
grinder, the material being ground will move through the grinding chamber so quickly that it doesn’t have a chance to
heat up sufficiently to start a fire. Also, the rapid rate that a tub grinder can pile material will quickly smother small hot
spots that might occur during normal grinding operations. Keeping the material moving through the machine and across
the top of the rotor is important to keep frictional heating of the material to a minimum.
IMPORTANT: NEVER
leave the vicinity of the unit with the engine running
.
PROPER OPERATION OF THE TUB GRINDER:
•
Do not grind materials any finer than necessary. Finely ground materials will produce more dust and
increase the risk of fire. If finely ground materials are required, it is better to grind the materials coarse
first with large opening screens installed in the grinder and then regrind them to the desired consistency
by installing smaller opening screens in the grinder. Be especially cautious when grinding materials that
can burn easily.
•
When filling the tub grinder during start‑up begin by filling the front of the tub and avoid placing
materials on the spinning rotor. When material begins to fall over the rotor, set the governor control on
“Manual” and rotate the tub slowly while continuing to fill the tub. When the tub is 1/2 to 2/3 full, the
governor control can be set to “auto” and grinding operations can resume normally. Do not allow the tub
to stop for any significant amount of time with material over the rotor to minimize frictional heating.
•
Do not smoke when working with combustible materials.
NO SMOKING IN THIS AREA
DANGER! NO OPEN FLAMES IN THIS AREA
