Komatsu PW160-7K Series Operation And Maintenance Manual page 340

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INTRODUCTION OF ATTACHMENTS AND EXTENDING MACHINE SERVICE LIFE
If all control levers are set to neutral, the engine speed will
drop by approx. 100 rpm, and after approx. 4 seconds, the
engine speed will drop to the deceleration speed (approx.
1400 rpm).
UPPER BOOM CONTROL PEDAL
This is used to operate the upper boom.
(1) RAISE:
Pedal pushed forward
(2) LOWER:
Pedal pushed back
NEUTRAL: The upper boom is stopped and held in the same
position.
Do not rest your food on the pedal unless using the pedal.
EXCAVATOR'S WORK
In addition to the following, it is possible to further increase the
range of applications by using various attachments.
BACK HOE WORK
A back hoe is suitable for excavation at a position lower the
machine.It is possible to effectively move the arm through 30° in
the direction towards the machine and 45° in the direction away
from the machine, making for efficient work.
SHOVEL WORK
A shovel is suitable for excavating at a position higher than the
machine.
LOADING WORK
About half of the time spent during excavating and loading work is
taken up by swinging. Maximum work efficiency can be attained
by carrying out work is such a way that the swinging angle is kept
as small as possible in accordance with the terrain.
SPECIAL OPERATIONS
The rotating arm and 2-piece boom facilitate the following special
operations.
PIT EXCAVATION FOR FOUNDATIONS OF BUILDINGS
Shafts with vertical walls can be excavated in all directions and
soil can be removed from around sheet piles.
SIDE DITCHING
The direction of the bucket teeth can be altered to facilitate the
excavation of parallel sided ditches.
340
CAUTION
OPTIONS, ATTACHMENTS

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