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3.11
WORK PROCEDURES OF MACHINE
3.11.1
DIGGING WORK
For digging work, mainly the arm crowding force is used, and the bucket scooping force may be used if necessary.
A
B
C
•
When a strong digging force is required, dig slowly
while keeping angle (C) between the boom and the
arm at approximately 90 to 110 degrees.
When lowering the boom, avoid rapid operations.
Especially, urgent stop during boom "DOWN" has a
great impact on the machine, resulting in adverse
effects on parts.
•
Point the bucket tooth tips to digging direction (A) as
much as possible, and dig with the bucket
positioned at shallow depth (B) by operating the arm
and the bucket.
This will reduce the digging resistance and damage
to the tooth tips.
•
If soil does not fall out easily, set the bucket in the bucket out position and move the bucket a few times by the
control lever.
Never extend and retract the bucket cylinder repeatedly with the boom cylinder and the arm cylinder fully
extended or retracted to fall out the soil.
C
•
When digging a wide trench, dig both sides of it first
and dig the center last.
To improve the efficiency, attach a bucket suitable
for trenching and place the crawlers parallel (C) to
the trench to dig.
3.11.2
LOADING WORK
•
Before performing loading and unloading, set a
dump truck on a place where the dump truck can be
easily seen from the operator with the smaller swing
angle.
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