OPERATION DETAILED CONTROLS AND GAUGES Work Equipment Control Lever This Left work equipment control lever (3) is used to operate the arm and upper structure. Arm operation (a) Arm OUT (b) Arm IN Swing operation (c) Swing to right (d) Swing to left N (Neutral) : The upper structure and arm are held in position and do not move. This Right work equipment control lever (4) is used to operate the boom and bucket. Boom operation (a) RAISE (b) LOWER Bucket operation (c) DUMP (d) CURL N (Neutral) : The boom and bucket are held in position and do not move. REMARK The engine speed for all control levers (travel, work equipment, attachment) is changed as follows by the auto- deceleration mechanism.
q When the travel lever and work equipment control levers are at the neutral position, even if the fuel control dial is above midrange speed, the engine speed will go down to a midrange speed. If one of these levers is operated, the engine speed will rise to the speed set by the fuel control dial. q If all the control levers are at the neutral position, the engine speed goes down approx. 100 rpm, then after approx. 4 seconds, the engine speed goes down to the deceleration speed (approx. 1400 rpm). 3-25