OPERATION
WB140-2N, WB150-2N 2-39
7. Set the throttle at the proper RPM speed 1500 to 1600 RPM. See “BRAKES, PARKING BRAKE, ACCELERATOR
AND THROTTLE CONTROL” on page 2-19.
8. Position the machine as shown in the illustration above. Lower the bucket (1) to the ground. Continue lowering until the
front wheels (2) come off the ground 5 cm (2 in.). Be sure both outriggers (3) are firmly on the ground.
9. Be sure your work area and boom swing radius is clear of all obstacles. Before starting your operations, sound the horn,
and be sure all personnel are at least 20 m (40 ft.) away from you and your work area.
10. When you are ready to start your excavation operations, sound the horn.
Remark
Call before you dig: See “STARTING YOUR WORK OPERATIONS” on page 1-9.
ADJUSTING THE DIGGING BUCKET
Depending upon what type of excavating operations you will be doing
the digging bucket can be adjusted to a setting for two positions.
Pos. 1:
Normal digging operations ensures more breakout power to the
bucket.
Pos. 2:
Suitable for operations on vertical walls, ensures the maximum
movement and digging height on walls. In this position the
breakout force is reduced.
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