Komatsu PC390LL-10 Manual

CEAM027103
Operation&Maintenance
Manual
PC390LL -10
LOG LOADER
ROAD BUILDER
SERIAL NUMBER PC390LL-10 A50601 and up
ENGINE 6D114E-5
This material is proprietary to Komatsu America Corp. and is not to be reproduced, used, or disclosed except in
accordance with written authorization from Komatsu America Corp.
It is our 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 2016 Komatsu
Printed in U.S.A.
July 2016 Komatsu
America Corp.

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0-1
INTRODUCTION 0
PC390LL-10
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INTRODUCTION
0-2 PC390LL-10
FORWARD
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 a hazard when performing operation and maintenance.
Read, understand and follow all precautions and warnings in this manual and on the machine before operating and performing
maintenance. Failure to do so may result in serious injury or death.
Improper operation and maintenance of the machine can be hazardous and could result in serious injury or death.
Storage location for the Operation and Maintenance Manual:
Magazine box on the left side of the operator's seat.
If you sell the machine, be sure to give this manual to the new owner
together with the machine.
If this manual is lost or damaged, contact your distributor immediately to
arrange for its replacement. For details regarding the machine serial No.
you will need to provide your Komatsu distributor, See “Your Machine
Serial Numbers and Distributor” on page 8..
Before beginning operation or maintenance, operators and maintenance personnel must always observe
the following points.
• Read this manual thoroughly and understand its contents fully.
• Read the safety messages and safety labels given in this manual carefully so that they are
understood fully.
• Keep this manual at the storage location for the Operation and Maintenance Manual given below so
that all personnel involved in working on the machine can consult it periodically.
• In case this manual is lost or damaged, immediately contact Komatsu or your Komatsu
distributor to obtain a new copy.
• When you sell the machine, make sure that this manual is provided to the new owner together with the
machine.
• In this manual, measurements are expressed in international standard units (SI). For the reference
purpose, weight units used in the past are also displayed in ( ).
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INTRODUCTION
PC390LL-10 0-3
SAFETY INFORMATION
Most accidents are caused by the failure to follow fundamental safety rules for the operation and maintenance of machines. To
avoid accidents, read, understand and follow all precautions and warnings in this manual and on the machine before
performing maintenance and machine operations.
The following signal words are used to inform you that there is a potentially hazardous situation that may lead to personal
injury or damage. In this manual and on machine labels, different signal words are used to express the potential level of
hazard. Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. This signal word is to be limited to most extreme situations.
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices.
Remark
This word is used for precautions that must be taken to avoid actions, which could shorten the life of the
machine.
Safety precautions are described in SAFETY Section 1.
KOMATSU AMERICA CORP. cannot predict every circumstance that might involve a potential hazard in operation and
maintenance. Therefore the safety message in this manual and on the machine may not include all possible safety precautions.
If any procedures or actions not specifically recommended or allowed in this manual are used, you must be sure that you and
others can do such procedures and actions safely and without damaging the machine. If you are unsure about the safety of
some procedures, contact your local distributor or KOMATSU AMERICA CORP.
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INTRODUCTION
0-4 PC390LL-10
Safety Labels
Safety labels are affixed to the machine to inform the operator or maintenance worker on the spot when carrying out
operation or maintenance of the machine that may involve hazard.
This machine uses “Safety labels using words” and “Safety labels using pictograms” to indicate safety procedures.
Example of safety label using words
Safety labels using pictogram
Safety pictograms use a picture to express a level of hazardous
condition equivalent to the signal word. These safety pictograms use
pictures in order to let the operator or maintenance worker
understand the level and type of hazardous condition at all times.
Safety pictograms show the type of hazardous condition at the top or
left side, and the method of avoiding the hazardous condition at the
bottom or right side. In addition, the type of hazardous condition is
displayed inside a triangle and the method of avoiding the hazardous
condition is shown inside a circle.
Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintenance.
Therefore, the safety messages in this manual and on the machine may not include all possible safety precautions.
If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsibility to
take the necessary steps to ensure safety.
In no event should you engage in prohibited uses or actions described in this manual.
The explanations, values, and illustrations in this manual were prepared based on the latest information available at that
time. Continuing improvements in the design of this machine can lead to changes in detail which may not be reflected in
this manual. Consult Komatsu or your Komatsu distributor for the latest available information of your machine or for
questions regarding information in this manual.
The numbers in illustrations correspond to the numbers in (_) in the text (for example: 1➝(1)).
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INTRODUCTION
PC390LL-10 0-5
INTRODUCTION
Intended Use
This Komatsu ROAD BUILDER or LOG LOADER MACHINE is designed to be used mainly for the following work:
For details on operating procedures, See “OPERATION” on page 1..
Directions of Machine
In this manual, the terms front, rear, left, and right refer to the travel direction as seen from the operator's seat when the
operator's seat is facing the front and the sprocket is at the rear of the machine.
Structure to Protect the Operator
This machine is equipped with a structure to protect the operator (ROPS) conforming to ISO8082-2.
•Excavating operations •Ditch cleaning operations •Demolition operations
•Leveling operations •Loading operations •Stump handling
•Log loading •Log unloading •Additional uses using KOMATSU
approved attachments only.
•Log stacking •Log handling
(A) Front (C) Left (E) Operator’s Seat
(B) Rear (D) Right (F) Sprocket
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INTRODUCTION
0-6 PC390LL-10
Breaking-In the New Machine
Remark
Your Komatsu machine has been thoroughly adjusted and tested before shipment from the factory. However,
operating the machine under full load before breaking the machine in can adversely affect the performance
and shorten the machine life.
Be sure to break in the machine for the initial 100 hours (as indicated on the service meter).
Make sure that you fully understand the content of this manual, and pay careful attention to the following points when
breaking in the machine.
•Run the engine at idle for 15 seconds after starting it. During this time, do not operate the control levers or fuel control
dial.
•Idle the engine for five minutes after starting it up.
•Avoid operation with heavy loads or at high speeds.
•Immediately after starting the engine, avoid sudden starts, sudden acceleration, unnecessary sudden stops, and sudden
changes in direction.
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INTRODUCTION
PC390LL-10 0-7
Product Information
When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items.
Product Identification Number (Pin)/Machine Serial No. Plate
On the bottom right of the operator's cab
The design of the nameplate differs according to the territory.
EPA* Regulations, Engine Number Plate
On the top side of the engine cylinder head cover.
*EPA: Environmental Protection Agency, U.S.A.
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INTRODUCTION
0-8 PC390LL-10
Service Meter Location
On top of the machine monitor.
Your Machine Serial Numbers and Distributor
Engine Acronyms
Machine serial No.
Engine serial No.
Product identification number
(PIN)
Distributor name
Address
Service Personnel
Phone/Fax
Acronym Stands for
KDPF Komatsu Diesel Particulate Filter
VGT Variable Geometry Turbo
KCCV Komatsu Closed Crankcase Ventilation
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