ELBOW 2103257 - Caterpillar

Illustration 1 g03094056
(1) Tilt control lever. (2) Lift control lever. (3) Auxiliary control lever.Tilt control lever (1), lift control lever (2), and auxiliary control lever (3) are controlled manually by the operator. The control levers send electronic signals to the implement electronic control module (ECM). Then, the implement ECM sends the appropriate amount of current to the solenoid valve (pilot proportioning) on the pilot valve (oil manifold). The solenoid valve sends a low pressure signal to the main control valve. This signal causes a stem in the main control valve to move. Then, pump supply oil is sent to the implement cylinders. The cylinder rods will extend or the cylinder rods will retract.The optional auxiliary implement system has an auxiliary pilot valve, an auxiliary control valve, and auxiliary cylinders. To control the auxiliary implement system, auxiliary control lever (3) is added in the operator station.The electrohydraulic control levers are equipped with soft detents. The soft detents do not hold the lever in place. The soft detents require an increased force near the end of lever travel in order to initiate the kickout. The soft detents are controlled by the software within the implement (ECM). As the control lever is moved into the detent position and released, the linkage will travel to a kickout position that is preprogrammed. The lever should be released in order to automatically return to the HOLD position. The