Komatsu PC78US-6 Manual

SEAM044601T
Operation&Maintenance
Operation&MaintenanceOperation&Maintenance
Operation&Maintenance
Manual
ManualManual
Manual
PC78US
-6
HYDRAULIC EXCAVATOR
SERIAL NUMBERS PC78US - 4562 and up
This material is proprietary to Komatsu Utility Division and is not to be reproduced, used, or disclosed
except in accordance with written authorization from Komatsu America International Company.
It is out policy to improve our products whenever it is possible and practical to do so. We reserve the right to
make changes or improvements at any time without incurring any obligation to install such changes on
products sold previously.
Due to this continuous program of research and development, revisions may be made to this publication. It
is recommended that customers contact their distributor for information on the latest revision.
Copyright 2001 Komatsu
DataKom Publishing Corporation
December 2001

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1 - 1

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FOREWORD
FOREWORD
FOREWORD
This manual provides rules and guidelines which will help you use this machine safely and effectively. The
precautions in this manual must be followed at all times when performing operation and maintenance. Most
accidents are caused by the failure to follow fundamental safety rules for the operation and maintenance of
machines. Accidents can be prevented by knowing beforehand conditions that may cause hazard when performing
operation and maintenance.
Operators
and
maintenance
personnel
must
always
do
as
follows
before
beginning
operation
or
maintenance.
Always
be
sure
to
read
and
understand
this
manual
thoroughly
before
performing
operation
and
maintenance.
Read
the
safety
messages
given
in
this
manual
and
the
safety
labels
affixed
to
the
machine
thoroughly
and
be
sure
that
you
understand
them
fully.
Keep
this
manual
at
the
storage
location
for
the
Operation
and
aintenance
anual
given
below,
and
have
all
personnel
read
it
periodically.
If
this
manual
has
been
lost
or
has
become
dirty
and
cannot
be
read,
request
a
replacement
manual
immediately
from
Komatsu
or
your
Komatsu
distributor.
If
you
sell
the
machine,
be
sure
to
give
this
manual
to
the
new
owners
together
with
the
machine.
Komatsu
delivers
machines
that
comply
with
all
applicable
regulations
and
standards
of
the
country
to
which
it
has
been
shipped.
If
this
machine
has
been
purchased
in
another
country
or
purchased
from
someone
in
another
country,
it
may
lack
certain
safety
devices
and
specifications
that
are
necessary
for
use
in
your
country.
If
there
is
any
question
about
whether
your
product
complies
with
the
applicable
standards
and
regulations
of
your
country,
consult
Komatsu
or
your
Komatsu
distributor
before
operating
the
machine.
Storage location for the Operation and Maintenance Manual:
Amagazine bo provided on the left side of operator's seat
1 - 2

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FOREWORD
FOREWORD
1 - 3

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FOREWORD
FOREWORD
1 - 4