PDF Operation & Maintenance Manual Komatsu PC2000-11E0 Hydraulic Excavator - 5 MB
Ensure the safe and efficient use of your Komatsu PC2000-11E0 Hydraulic Excavator with this complete Operation & Maintenance Manual.
This guide provides operators with all the necessary information on controls, safety procedures, and daily service points.
Following the maintenance schedules outlined in this manual will help maximize the performance and lifespan of your powerful excavator.
It is the authoritative resource for both new and experienced operators.
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EENAM04020
Operation &
Maintenance Manual
PC2000-11E0
HYDRAULIC EXCAVATOR
SERIAL NUMBER
PC2000-11E0 - 30015 and up
WARNING
Unsafe use of this machine may cause serious injury or
ORIGINAL INSTRUCTIONS
death. Operators and maintenance personnel must read
this manual before operating or maintaining this
machine. This manual should be kept inside the cab for
reference and periodically reviewed by all personel who
will come into contact with the machine.
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FOREWORD READ THIS MANUAL
correction is submitted, such request must be accompanied of proof of the flawed nature of the data for which
correction is asked.
You have the right to request that personal data pertaining to you will be deleted if they are no longer required in
light of the purposes outlined above. However, you need to keep in mind that a request for deletion will be eval-
uated by us against:
• overriding interests of Komatsu, Komatsu Europe or any other third party
• legal or regulatory obligations or administrative or judicial orders which may contradict such deletion
Instead of deletion you can also ask that we limit the processing of your personal data if and when (a) you con-
test the accuracy of that data, (b) the processing is illegitimate or (c) the data are no longer needed for the pur-
poses which are outlined above, but you need them to defend yourself in judicial proceedings.
You have the right to oppose the processing of personal data for the purposes (a) to (l) in section 4, but you are
required to explain your particular circumstances on which your request for opposition is based.
As explained earlier, if you wish to submit a request to exercise one or more of the rights listed in this section,
you must first and foremost contact your employer. Each request addressed to us can be sent via e-mail to
[email protected] for all data subject right matters.
An e-mail requesting to exercise a right will not be construed as consent with the processing of your personal
data beyond what is required for handling your request. Such request should clearly state and specify which
right you wish to exercise and the reasons for it, if such is required. It should also be dated and signed, and
accompanied by a digitally scanned copy of your valid identity card proving your identity.
Without prejudice to the allocation of responsibilities as outlined in section 1, we will promptly inform you of hav-
ing received this request. If the request proves valid, we will notify you as soon as reasonably possible and at
the latest thirty (30) days after having received the request.
If you have any complaint regarding the processing of your personal data by Komatsu or Komatsu Europe via
MMS, you may always contact us via the e-mail address mentioned in the first paragraph of this clause. If you
remain unsatisfied with our response, you may file a complaint with the competent data protection authority.
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FOREWORD PRODUCT INFORMATION
PRODUCT INFORMATION
When requesting service or ordering replacement parts, inform your Komatsu distributor of the following items.
LOCATION OF PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERI-
AL NO. PLATE
It is located on the right bottom of the cab base.
The design of the nameplate varies according to the district.
LOCATION OF ENGINE NUMBER PLATE
It is located on the left side of the fuel filter (1) on the engine cylinder block if you look from the machine front
side.
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--- Page 5 ---
SAFETY SAFETY LABELS
Caution for electric cables
“09801–A0641”
• An electrocution hazard if the machine is brought too near
to electric power lines.
• Keep a safe distance from electric power lines.
$
Caution for control pattern
“09822-A0751”
In order to prevent an accident resulting in injury or death
caused by error-operation, check the machine motion and indi-
cated control pattern, when operating machines. Pay attention
to the circumference and operate slowly when checking the
machine motion.
$
Caution for adjusting track tension
“09657-A0881”
• Sign indicates a hazard of flying plug from track adjuster
that could cause injury.
• Read manual when adjusting track for safe and proper
handling.
Caution for high-temperature oil
“09653-B0361”
• Sign indicates a burn hazard from spurting hot oil if hy-
draulic tank is uncapped while hot.
• Allow hydraulic tank to cool before removing cap.
%
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--- Page 6 ---
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTE-
SAFETY NANCE
PRECAUTIONS WHEN GETTING ON OR OFF MACHINE
USE HANDRAILS AND STEPS WHEN GETTING ON OR OFF MACHINE
To prevent personal injury caused by slipping or falling off the machine, always observe the following.
• Use the handrails and steps marked by arrows in the fig-
ure when getting on and off the machine.
• Always face the machine and maintain at least three-point
contact (both feet and one hand, or both hands and one
foot) with the handrails and steps to ensure that you sup-
port yourself.
• Before getting on and off the machine, check the handrails
and steps if there is any oil, grease, or mud on them. Wipe
it off immediately not to slip if any. If there is any loose bolt
on the handrail and step, tighten it securely.
If the handrails and steps are damaged or deformed, they
need to be repaired immediately. Ask your Komatsu dis- ,&
tributor to perform this work.
• Do not grip the control levers or lock lever when getting on or off the machine. When getting on or off the
machine, take care that your body or clothes do not touch the control levers.
• Never climb on the engine hood or covers where there are no non-slip pads.
• Do not get on or off the machine with tools in your hand.
• Do not grab a foldable mirror as a handrail since it turns.
NO JUMPING ON OR OFF MACHINE
Getting on or off the moving machine can cause serious personal injury or death. Always observe the following.
• Never jump on or off the machine. Never get on or off a moving machine.
• If the machine starts to move when there is no operator on the machine, do not jump on to the machine and
try to stop it.
LIFTING OF PERSONNEL PROHIBITED
Under no circumstances should this machine be used for the lifting of personnel.
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SAFETY PRECAUTIONS FOR OPERATION
PRECAUTIONS WHEN STARTING ENGINE
The machine may suddenly move off and this may lead to serious personal injury or death. Always observe the
following.
• Start the engine only while sitting down in the operator's seat.
• When starting the engine, sound the horn as a warning.
• Operator and operations trainer are only persons allowed to ride.
• Do not attempt to start the engine by short-circuiting the engine starting circuit. This may cause fire, serious
personal injury or death.
IN COLD WEATHER
• If the warm-up operation is not performed thoroughly, and the work equipment is operated, the reaction of
the work equipment to the operation of the control levers and pedals will be slow and the movement of it
may not be what the operator intended. Be sure to perform the warm-up operation. Particularly in a cold
weather, be sure the warming-up operation is completed.
• If the battery electrolyte is frozen, do not charge the battery or start the engine with a different power
source. There is a hazard that this will ignite the battery and cause the battery to explode.
Before charging or starting the engine with a different power source, melt the battery electrolyte and check
that there is no leakage of electrolyte before starting.
START ENGINE WITH JUMPER CABLES
If any mistake is made in the method of connecting the jumper cables, it may cause the battery to explode, so
always observe the following.
• Always wear protective eyeglasses and rubber gloves
when starting the engine by using the jumper cables.
• When connecting a normal machine to a failed machine
with the jumper cables, always use the normal machine
with the same battery voltage as the failed machine.
• When starting the engine with the jumper cables, perform
the starting operation with 2 workers (one worker sitting in
the operator's seat and the other working with the battery).
• When starting from another machine, be careful that the
normal machine does not contact with the failed machine.
• When connecting the jumper cables, turn the starting
switch to OFF position for both the failed machine and the normal machine. If the failed machine has a bat-
tery disconnect switch, turn it to OFF position, and turn it ON again after connecting the cables.
It is dangerous that the machine may move when the power is connected.
• Be sure to connect the positive (+) cable first when installing the jumper cables. Disconnect the negative (-)
cable (ground side) first when removing them.
• When disconnecting the jumper cables, take care not to bring the clips in contact with each other or with the
machine.
START WITH JUMP START RECEPTACLE
• For machines with the jump start receptacle (optional), turn the starting switch key to OFF position, wait for
3 minutes or more, turn the battery isolator switch to OFF position. Then, perform connecting and discon-
necting of the jump start receptacle.
• For starting procedure of the jump start receptacle, see “METHOD FOR CONNECTING EXTERNAL POW-
ER SUPPLY”.
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SAFETY PRECAUTIONS FOR OPERATION
• Do not use the work equipment or swing to pull the load in
any direction. There is danger that the hook may break
and the load come off, causing the work equipment to
move suddenly and cause personal injury.
• Do not leave the operator's seat while the load is being lif-
ted.
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SAFETY PRECAUTIONS FOR MAINTENANCE
PRECAUTIONS FOR HIGH-PRESSURE FUEL
While the engine is running, high-pressure is generated in the engine fuel piping. If you try to disassemble the
piping before the internal pressure is released, serious personal injury or death can result. When performing in-
spection or maintenance of the fuel piping system, stop the engine and wait for at least 30 seconds to allow the
internal pressure to go down before starting the work.
HANDLE HIGH-PRESSURE HOSES AND PIPING
If oil or fuel leaks from high-pressure hoses or piping, it may cause fire or defective operation. It is dangerous
and may cause serious personal injury or death. If the hose or piping mounts are loose or oil or fuel is found to
be leaking from the mount, stop operations and tighten to the specified torque.
If any damaged or deformed hoses or piping are found, consult your Komatsu distributor.
Replace the hose if any of the following problems are found.
• Damaged hose or deformed hydraulic fitting.
• Frayed or cut covering or exposed reinforcement wire layer.
• Covering swollen in places.
• Twisted or crushed movable portion.
• Foreign material embedded in covering.
PRECAUTIONS FOR HIGH VOLTAGE
When the engine is running and immediately after it is stopped,
high voltage is generated inside the engine controller and the
engine injector, and there is danger of electric shock. Never
touch the inside of the engine controller or the injector part of
the engine. If it is necessary to touch the inside of the engine
controller or the injector part of the engine, consult your Komat-
su distributor.
PRECAUTIONS FOR NOISE
When performing maintenance of the engine and you are exposed to noise for long periods of time, wear ear
covers or ear plugs while working.
If the noise is too loud, it may cause temporary or permanent hearing problems.
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OPERATION GENERAL VIEW
(17) Emergency engine stop switch (25) Staircase lighting switch
(18) Emergency engine stop indicator (26) Working lamp switch
(19) Service center switch (if equipped) (27) Auxiliary lamp switch
(20) Greasing mode switch (28) Revolving lamp switch (if equipped)
(21) Machine push-UP switch (29) Engine shutdown secondary switch
(22) Boom shock absorbing control switch (30) Seat heater switch
(23) Swing lock switch (31) Heated mirror switch
(24) Room lamp switch
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OPERATION EXPLANATION OF COMPONENTS
On the ID number input screen LL (with SKIP), press the
switch F1, and the screen changes to the check before
starting screen BB without inputting ID number.
REMARK
• Contact your Komatsu distributor for the method of setting,
changing, or canceling the operator identification function.
• Depending on the set value of ID holding time in set items
of operator identification function, even if inputting the ID
number for operator identification setting is set, the ID
number input screen LL (with SKIP) or MM (without SKIP)
may not be displayed while the starting switch is turned to
ON position.
If the incorrect ID number is inputted for 3 times in a row, you cannot input the ID number in the next 5 minutes.
Wait for more than 5 minutes, and try inputting the ID number again.
As long as the ID number input screen is displayed, the engine cannot be started. If you forget the ID number
and cannot start the engine, ask the person in charge of the machine for it.
NOTICE
The operator identification function has no anti-theft effect. It is neither for security enhancement nor
for a protection against theft. Do not use it for the purpose of security enhancement.
Komatsu cannot accept any responsibility for any loss or damage resulting from the wrong use of ID or
unauthorized use of ID by a third party.
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OPERATION EXPLANATION OF COMPONENTS
CURRENT ABNORMALITY DISPLAY SWITCH
If there is any error generated, “!” is displayed above the switch
F5.
Monitor display screen is shifted to occurred error list screen by
pressing the switch F5 while “!” is displayed.
Take appropriate actions according to the message displayed
on the monitor.
Operation on “Current Abnormality” screen
On “Current Abnormality” screen, the following operations can
be performed with switches F1, F2 and F5.
F1: Displays the next page. When on the last page, it displays
the first page.
F2: Displays the previous page. When on the first page, it dis-
plays the last page.
F5: Returns the screen to the standard screen.
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OPERATION EXPLANATION OF COMPONENTS
MAINTENANCE TIME CAUTION LAMP
Maintenance time caution lamp displays the notices and alarms
concerning maintenance time.
This lamp lights up when the starting switch is turned to “ON”
position. It goes out after 30 seconds and the display changes
to the standard screen.
When the due time is over
The caution lamp lights up in red.
The maintenance due time is over.
If no action is taken, the machine performance will become
worse and the machine life will be shortened.
Perform necessary maintenance as soon as possible.
When giving the notice of the due time
The caution lamp lights up in yellow.
The maintenance time is approaching.
Prepare necessary parts for the maintenance.
REMARK
• You can check the maintenance items on the maintenance
tab screen by pressing the switch F6 on the maintenance
time warning screen shown in the figure or on the standard
screen.
• The lighting time of maintenance time notice (yellow) has
been initially set to 30 hours, but it can be changed.
To change it, ask your Komatsu distributor.
• For the operations on the maintenance tab screen, see
“MAINTENACE SCREEN SETTING”.
SEATBELT CAUTION LAMP
The seat belt caution lamp lights up when the seat belt is not
fastened. It goes out when the seat belt is fastened.
For fastening the seat belt, see “METHOD FOR FASTENING
AND UNFASTENING SEAT BELT”.
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OPERATION EXPLANATION OF COMPONENTS
AUTO-GREASING OPERATION PILOT LAMP
The auto-greasing operation pilot lamp is displayed when the
greasing mode selector switch is at AUTO side and the grease
pump is in operation.
MANUAL-GREASING OPERATION PILOT LAMP
Manual-greasing operation pilot lamp is displayed when the
greasing mode selector switch is turned to MANUAL side.
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OPERATION EXPLANATION OF COMPONENTS
Truck counter 2 display
Truck counter 2 display shows the number of loads counted for
the truck.
When the truck counter switch (b) at the machine front side on
top of the L.H. work equipment control lever is pressed, the
count advances. Each time the truck counter switch (b) is
pressed, the buzzer emits a sound (peep), so it is possible to
check that the switch has been pressed.
REMARK
• It is possible to divide into truck counters 1 and 2 to distin-
guish the count according to the size or type of load of the
truck being loaded.
• If the switch is pressed too many times by mistake during
operations, it is possible to correct the count from the user
menu. When correcting it, see “TRUCK COUNTER RE-
SET”.
• In addition, by holding down the switch (a) or (b) for ap-
proximately 3 seconds, it is possible to reduce the count
by 1.
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OPERATION EXPLANATION OF COMPONENTS
NUMERIC INPUT SWITCH
These switches consist of 10 switches of 0, 1, 2, 3, 4, 5, 6, 7, 8,
and 9. These switches are used for numeric input column such
as the message display is displayed. Switch corresponds to the
numeral (1) shown on the lower right of the switch.
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OPERATION EXPLANATION OF COMPONENTS
Switching of the displayed graph
Press F2 on “Average Fuel Consumption Record” screen to
change the currently displayed graph to another.
REMARK
There are 2 types of graphs. One shows hourly average fuel
consumption during last 12 hours and the other is daily aver-
age fuel consumption during last 7 days. Switching among
them is available.
Delete “Average Fuel Consumption Record”
1. The reconfirmation screen shown in the figure is displayed
when the switch F1 (CLEAR) is pressed.
2. If you press the switch F6, graphs data of the last 12 hours
and the last 1 week are both deleted, and the screen re-
turns to “Average Fuel Consumption Record” screen.
REMARK
Press the switch F5 to cancel the data deletion (clear) opera-
tion.
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OPERATION EXPLANATION OF COMPONENTS
3. Press the switch F5. The screen returns to the standard
screen.
4. Press the auto-deceleration switch (1) to enable the auto-
deceleration function.
5. When the auto-deceleration function is enabled, the mode
is displayed in the right side of the monitor display, and the
screen returns to the standard screen 2 seconds later.
6. The auto-deceleration pilot lamp lights up on the standard
screen. (It goes out when the auto-deceleration function is
disabled.)
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OPERATION EXPLANATION OF COMPONENTS
SCREEN ADJUSTMENT
Use “Screen Adjustment” menu to adjust the brightness of the monitor screen.
1. Select the screen adjustment (1) on the “Monitor Setting”
menu screen, then press the switch F6.
2. Use the switches F2 to F6 to adjust the brightness of the
screen.
F2: Resets an adjusted value to default value.
F3: Moves the indicator to the left by one level.
F4: Moves the indicator to the right by one level.
F5: Cancels the change and returns to the monitor setting
menu screen.
F6: Accepts the change and then returns to the monitor
setting menu screen.
REMARK
• If the light switch is at night mode ON, and the screen
is adjusted, it is possible to adjust the brightness of
the monitor screen (night mode).
• If the light switch is at day mode ON, and the screen is
adjusted, it is possible to adjust the brightness of the
monitor screen (day mode).
• As long as “*” mark is displayed in the upper right cor-
ner of the screen, brightness is automatically restric-
ted by the machine monitor to protect the liquid crys-
tal. Screen adjustment may not change the screen
brightness as long as “*” mark is displayed. However,
it is not an error.
• The state of the previous screen display (camera dis-
play and meter display or only meter display) is reflec-
ted on the background of the screen adjustment
screen.
Screen Adjustment (Camera)
Use “Screen Adjustment (Camera)” menu to adjust the brightness of the camera screen.
1. Select the screen adjustment (camera) (2) on the “Monitor
Setting” menu screen, then press the switch F6.
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OPERATION EXPLANATION OF COMPONENTS
REPLY TO MESSAGE
1. When replying to a message, input the selected item num-
ber in “Numeric Input” column (1) on the screen of mail
confirmation menu (f). The selected item number is written
in place (2) of the message text.
• Input the number by using the monitor switch. Each
switch corresponds to the numerical value shown on
the lower right of the switch.
• If you input an incorrect number, press the switch F5,
and you can clear an input character at a time.
• If the switch F5 is pressed when the input column is
blank, the screen returns to the standard screen.
2. After inputting the selected item number, press the switch
F6.
3. When the message “Do you send Numeric Input?” is dis-
played in the column (1) of the mail confirmation menu
screen, press the switch F6 again. The input value is sent
out.
When “Do you send Numeric Input?” is displayed, press
the switch F5, and the screen returns to the message reply
screen. At this time, the previous input value will be
cleared.
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OPERATION EXPLANATION OF COMPONENTS
GREASING MODE SELECTOR SWITCH
Greasing mode selector switch is used to switch the operating
mode of the grease pump.
(a) MANUAL
Operates the grease pump continuously. Set it to (a) MANUAL
when using the grease gun manually.
The manual greasing operating pilot lamp lights up on the ma-
chine monitor.
(b) AUTO
Performs the auto-greasing. Set it to (b) AUTO usually.
The auto-greasing operating pilot lamp lights up on the machine monitor when the grease pump is activated.
When switching (b) AUTO to (a) MANUAL, or (a) MANUAL to (b) AUTO within 3 seconds, 1 cycle of auto-greas-
ing operates. Greasing can be performed anytime as needed.
When using the grease gun, turn the greasing mode selector switch to MANUAL position. It can be used to
check the grease pump operating state or to bleed air from the grease line.
TRUCK COUNTER SWITCH
When the truck counter switch on the L.H. work equipment
control lever is pressed, the count advances on the truck coun-
ter display on the standard screen of the machine monitor.
There are 2 truck counter switches (a) and (b). For the explan-
ation of the truck counter display, see “TRUCK COUNTER”.
(a): Truck counter 1 switch
(b): Truck counter 2 switch
• When the truck counter switch is pressed, the buzzer
emits a peep at the same time, so you can check that the
truck counter switch has been pressed.
• When the truck counter switch is held down for approximately 3 seconds, the buzzer emits a sound (peep
peep) and the count on the truck counter on the standard screen of the machine monitor is reduced by 1.
Use this to correct the count if the switch has been pressed too many times by mistake.
SWITCH FOR MIRROR WITH HEATED WIRE
(option)
You can turn on or off the heater for side view mirrors with the
mirror heater switch.
The wire heater is not automatically turned off even when it be-
comes hot. In case when there is no need to heat, set the
switch manually to OFF position (B).
(A) ON position
The wire heater operates.
(B) OFF position
The wire heater stops.
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OPERATION EXPLANATION OF COMPONENTS
STAIRWAY LOWER SWITCH
Stairway lower switch is used to lower the stairway.
REMARK
For handling the stairway, see “HANDLE THE HYDRAULICAL-
LY OPERATED STAIRWAY”.
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OPERATION EXPLANATION OF COMPONENTS
TRAVEL LEVER
k WARNING
• If you perform operations with your foot on the pedal, the machine may suddenly start if you de-
press the pedal by mistake, and this may lead to serious personal injury or death. Be extremely
careful when using the pedal for travel and steering operations, and do not put your foot on the
pedal when it is not necessary.
• When the track frame is facing the rear, the direction of operation of the steering lever is the oppo-
site to the direction of movement of the machine (forward/reverse, right/left turn).
When operating the travel lever, always check if the track frame is facing the front or the rear. (If the
sprocket is at the rear, the track frame is facing the front.)
The travel lever is used to change the direction of travel be-
tween forward and reverse. ( ) shows the pedal operation.
(a) FORWARD
The lever is pushed forward
(Depress the front side of pedal.)
(b) REVERSE
The lever is pulled back
(Depress the rear side of pedal.)
N (NEUTRAL)
The machine stops.
REMARK
If the lever is shifted to FORWARD or REVERSE position from
NEUTRAL position, the alarm sounds to warn that the machine
is starting to move.
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OPERATION EXPLANATION OF COMPONENTS
Fuse capacities and circuit names
No. Fuse Name of circuit
(1) 10 A Swing parking brake solenoid valve
Machine push-up solenoid valve, boom shock-
(2) 10 A
less solenoid valve
(3) 10 A Starting motor cut-off relay
(4) 10 A Cigarette lighter
(5) 20 A Horn, flash light
(6) 10 A Power supply for cab lever switch
(7) 10 A Revolving lamp
(8) 20 A Side lamp, rear lamp
(9) 10 A Radio
(10) 30 A Windshield wiper, window washer
(11) 20 A Air conditioner (upper)
(12) 20 A Air conditioner (lower)
(13) 20 A 12 V power supply
(14) 5A L.H. bank engine controller ACC
(15) 5A R.H. bank engine controller ACC
(16) 10 A Radio backup power supply, room lamp
(17) 10 A Network path power supply, spare
(18) 20 A Machine cab room lamp power supply
System operating lamp, normal power supply
(19) 20 A
for cab
(20) 20 A Staircase lighting
Spare fuses are stored on the back of the fuse holder cover.
(1): 30 A
(2): 20 A
(3): 10 A
(4): 5 A
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OPERATION EXPLANATION OF COMPONENTS
METHOD FOR ADDING GREASE
When replacing grease can
1. When replacing the grease can (2), do as follows.
2. Open the storage case cover (4) of grease can (2) at 2 pla-
ces.
3. Remove the quick couplers (5), (6), (7), wiring harness (8),
wiring clamp (9) and mounting bolts (10).
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OPERATION EXPLANATION OF COMPONENTS
REMARK
If heavy-duty operation is performed for more than 30 minutes
with the fuel control dial between Low idle (MIN) position and
High idle (MAX) position, soot is accumulated much and action
level “L03” may be displayed. However, this does not indicate
abnormality.
After performing manual stationary regeneration, turn the fuel
control dial to a point above the midpoint between Low idle
(MIN) position and High idle (MAX) position to continue the op-
eration.
When the degree of emergency is low
• If KDPF soot accumulation caution lamp (2) lights up in
yellow (action level (3): “L01”), screen (A) is displayed first.
• The action level goes out 2 seconds later, and the screen
changes back to standard screen (B).
• If the lock lever is set to LOCK position or all the work
equipment control levers are set in NEUTRAL, the screen
changes to “Aftertreatment Devices Regeneration” screen
(C) after 3 seconds only the first time. If the manual sta-
tionary regeneration is not performed, the screen returns
to standard screen (B) after 30 seconds.
Then, if the accumulated soot does not decrease, “After-
treatment Devices Regeneration” (C) is displayed for 30
seconds every 2 hours.
• If KDPF soot accumulation caution lamp (2) lights up in
yellow, stop the machine in a safe place after finishing the
work and perform the manual stationary regeneration.
*
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OPERATION EXPLANATION OF COMPONENTS
• Warning:
The alarm buzzer operates in the Intermittent alarm.
The engine system caution lamp (1) lights up in red.
“L03” is shown in red on the action level display (3).
Push the switch F6 to show “NOx Control System Informa-
tion” screen.
*
“NOx Control System Information” screen message (5): “1
EGR system inspection and maintenance”
Stop the operation and move the machine to a safe area,
then consult your Komatsu distributor for inspection and
maintenance.
If operation continues for 5 hours after “Warning” started
with no actions instructed by the action level table, Induce-
ment goes to “Continuous Warning”.
In “Warning”, engine power will be derated.
Because of the reduction of engine power, the machine
normal operation will be limited.
• Continuous Warning
The alarm buzzer operates in the Continuous alarm.
The engine system caution lamp (1) lights up in red.
The NOx control system caution lamp (2) lights up in yel-
low.
“L03” is shown in red on the action level display (3).
Push the switch F6 to show “NOx Control System Informa-
tion” screen.
*
“NOx Control System Information” screen message (5): “2
EGR system inspection and maintenance”
Stop the operation and move the machine to a safe area,
then consult your Komatsu distributor for inspection and
maintenance.
The duration time of “Continuous Warning” is 5 hours. The
remaining time (hours and minutes) to “Low level Induce-