Tigercat X870D/LX870D Feller Buncher
ER BOOM SYSTEM
Safety
FLUID INJECTION INJURY
WARNING
WARNING
Support the boom system with stands before performing any work.
Diesel fuel or hydraulic fluid under pressure can penetrate the skin and could result in serious injury or death. If any fluid is injected under the skin, a medical doctor familiar with the treatment of this type of injury must surgically remove it within a few hours.
Follow the attachment manufacturer's instructions and safety warnings before approaching the attachment head to make adjustments. Do not work below or behind a machine that is parked on a slope or hillside. This machine is equipped with an ER boom system. This system permits the operator to extend and retract the boom on a horizontal plane using a single joystick. The controls for the ER boom system behave differently from those on machines with conventional booms. The hoist and stick cylinder hydraulic circuits on this machine are inter-connected to facilitate level attachment travel and to recirculate hydraulic oil. Consequently, when a hydraulic line is disconnected at one cylinder, pressure may also be relieved at a second cylinder. Before attempting to disconnect hydraulic lines or performing any service work on the boom system: • Park on level ground with the attachment resting firmly on the ground. • Fully extend the stick boom cylinders and fully retract the hoist cylinder. • Support the stick boom tip firmly on the ground if the attachment is removed from the boom. • Do not rely on the attachment to support the boom system during servicing. Slow leakage in the hydraulic components can cause the attachment to move unexpectedly.
Hydraulic and diesel fuel systems on forestry machines operate at very high pressures, often 207 bar (3000 psi) and above. If a loose connection or a defect in a hose should occur, a fine, high velocity stream of fluid will result. Even for systems pressurized to as little as 7 bar (100 psi), this fluid stream can penetrate human skin as if it were a hypodermic needle. Initially, an accidental fluid injection beneath the skin may only produce a slight stinging sensation. There is a danger that you will tend to ignore this, thinking that it will get better with time. Most often, it does not! Within a very short time, the wound may begin to throb painfully, indicating that tissue damage has already begun. Similarly, fluid injected directly into a blood vessel can spread rapidly through your circulatory system. The human body has little ability to purge injected fluid. Time becomes critical as tissue damage progresses rapidly. The longer you delay getting professional medical attention, the more damage that can occur. Although fluid injection accidents are rare, the resulting injury has, on occasion, required the amputation of a finger, a hand or in some cases the entire limb. The longer the delay in getting professional medical aid, the further up the limb the tissue damage can spread. An injury of this type can become very serious or even fatal if not dealt with promptly and properly.
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