Operating On Soft Ground; Raise One Track Using Boom And Arm - Hitachi ZAXIS 70 Operator's Manual

OPERATING ON SOFT GROUND

• Avoid traveling on very soft ground that does not have
sufficient strength to firmly support the machine.
• If the machine is operated on very soft ground or be-
comes stuck, it may be necessary to clean the track
frame area.
• Swing the upperstructure 90° and lower the bucket to
raise one track off the ground. Make sure to keep the
angle between the boom and arm 90 to 110° and posi-
tion the bucket's round side on the ground.
• Rotate the raised track back and forth to remove mud
and dirt.
• After lowering the track to the ground, select slow
travel speed. Carefully move the machine to firm
ground.
• Utilize the boom and arm functions to pull the machine
toward firm ground.
• Tow the machine if the machine becomes stuck but
only if the engine is still operating. Be sure to attach a
tow line correctly. (Refer to the "TOWING MACHINE A
SHORT DISTANCE" section on the next page.)

RAISE ONE TRACK USING BOOM AND ARM

CAUTION: Keep the angle between boom and
arm 90 to 110° and position the bucket's round
side on the ground.
Swing the upperstructure 90° and lower the bucket to raise
track off ground. Do not dig bucket teeth into the ground
when using the hoe bucket reversed.
Place blocks under machine frame to support the machine.
IMPORTANT: When the machine is modified as a face
shovel by installing the hoe bucket in
reverse, avoid raising the machine
above the ground using the front at-
tachment with the bucket cylinder fully
extended. Excessive loads will be ap-
plied to the pins around the bucket and
the bucket cylinder, resulting in break-
age of the pins.
DRIVING THE MACHINE
4-6
90 to 100°
90 to 100°
WRONG
M1CC-04-001
M1CC-04-002
M1CC-04-003
M1CC-04-004