identify potential hazards associated with hydraulics and be
aware of the recommendations for avoiding injury.
use of hydraulics in agricultural and industrial applications
has multiplied many times over the years because of its flexibility,
simplicity, compactness, economy and safety. However, even with
the best of care, hydraulic system component failure will occur
and then the stage is set for accidents to happen unless care
is taken during troubleshooting, repair and maintenance of the
wear eye protection and appropriate clothing when working
on hydraulic systems.
up working units, such as a combine header, when you must
work on the hydraulic system with the unit raised. Never
rely on hydraulics to keep you safe in this kind of situation.
service the hydraulic system while the machine's engine
is running unless absolutely necessary, such as when bleeding
not remove cylinders until the working units are resting
on the floor or ground, on safety stands or on blocks.
Be sure the machine's engine is shut off during this procedure.
disconnecting oil lines, relieve all hydraulic pressure
and discharge the accumulator, If used.
sure that all line connections are tight and the lines are
not damaged. Escaping oil under pressure is a fire hazard
and can penetrate the skin causing serious injury. Keep
hands and body away from pinhole leaks and nozzles which
eject fluids under pressure. Use a piece of cardboard or
paper when searching for leaks. Do NOT use your hand. If
ANY fluid is injected into the skin, it must be surgically
removed within a few hours by a doctor familiar with this
type of injury or gangrene may result.
lower hydraulic working units to the ground before leaving
transporting the machine, lock the cylinder stops to hold
working units solidly in place.
hydraulic pumps, motors and valves are heavy. Before
removing them, provide a means of support such as a chain
hoist, floor jack or blocks.
insure adequate control of the unit, keep the hydraulics
in proper adjustment.
sure to couple hoses correctly. If the hoses are interchanged,
equipment may operate in reverse and this could result in
repair components with external leaks and clean up any spilled
oil as this may cause a bad fall.
care in storing and handling fluids to keep out dirt and
moisture. Store inside when possible. If stored outside,
lay oil barrels on their sides. If not possible, tilt slightly
so bung is at the high side. Keep oil bungs drawn tight.
Revise oil containers and funnels in fuel after use. Store
in clean area or cover to keep out dirt. When adding oil,
clean all dirt from around the filler cap before removing
be sure that all belts, pulling and rotating shafts are
covered with appropriate guards.
State University Cooperative Extension Service, Manhattan, Kansas.
KSU Cooperative Extension Service provides practical, research-based
information and educational programs to address critical issues
facing individuals, families, farms, businesses and communities.
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