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12. OPERATION
12.12 ADJUSTING WORK EQUIPMENT POSTURE
‡ 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 the safety bar.
‡ Be sure to put a warning tag on work equipment control
levers 1.
‡ Do not 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 (lift arm 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.
12.12.1
ADJUSTING BOOM KICKOUT
1. Raise the bucket to the desired height, set the lift arm 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 hold the plate in position.
3. Loosen two nuts 4 to make a 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·m (1.75 ± 0.25 kgf·m, 12.7 ± 1.8 lbft)
4. After adjusting, start the engine and operate the lift arm control
lever. Check that the lever is automatically returned to HOLD
when the bucket reaches the desired height.
2-88
WARNING
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