Adjusting Work Equipment Posture - Komatsu ecot3 WA430-6 Operation & Maintenance Manual

OPERATION

ADJUSTING WORK EQUIPMENT POSTURE

Stop the machine on flat ground and put blocks in front of and behind
the tires.
Set the parking brake switch to the ON position (A) to apply the parking
brake.
Set the frame lock bar to LOCK position (L) to lock the front and rear
frames.
Always attach a warning sign to the work equipment control levers.
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.
ADJUSTING BOOM KICKOUT
1. Raise the bucket to the desired position, return the lift arm
control lever to the HOLD position, set the work equipment lock
lever to the LOCK position, then stop the engine.
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 (0.118
to 0.197 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 Nm (1.75 ± 0.25 kgm, 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.
WARNING
OPERATION
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