Komatsu — 12.15.1 ADJUSTING BOOM KICKOUT

OPERATION 12.15 ADJUSTING WORK EQUIPMENT POSTURE WARNING ! Stop the machine on flat ground and put blocks in front and behind the wheels. ! Apply the parking brake. ! Secure the front and rear frames with safety bar. ! Never go under the work equipment when the arm is raised. The boom kickout makes it possible to set the bucket so that it automatically stops at the desired lifting height (work equipment higher than horizontal) and the bucket positioner makes it possible to set the bucket so that it automatically stops at the desired digging angle. The setting can be adjusted to match the working conditions. 12.15.1 ADJUSTING BOOM KICKOUT 1.

Raise the bucket to the desired height, Set the work equipment control lever at Hold and lock the lever in position. Then stop the engine and adjust as follows. 2.Loosen two bolts (1), and adjust plate (2) so that the bottom edge is in line with the center of the sensing surface of proximity switch (3). Then tighten the bolts to the plate in position. 3.Loosen two nuts (4) to make clearance of 3 to 5 mm (0.12 to 0.20 in) between plate (2) and the sensing surface of proximity switch (3). Then tighten the nuts to hold in position. Tightening torque: (17.2 ± 2.5 N C m (1.75 ± 0.25 kgm, 12.7 ± 1.8 lbf ft) 4.After adjusting, start the engine and operate the work equipment control lever.

Check that the lever is automatically returned to HOLD when the bucket reaches the desired height. 2-52