PDF Operator & Maintenance Manual Komatsu D41E-6 D41P-6 Bulldozer - 1 MB
This is the official Operator and Maintenance Manual for Komatsu D41E-6 and D41P-6 bulldozers with serial numbers 20001 and up.
It provides essential information on daily checks, controls, and safe operating procedures.
Following the maintenance schedule outlined in this guide is the best way to ensure the reliability and longevity of your dozer.
This manual is a critical resource for all operators.
PDF Viewer
Viewer loads when you scroll here
SHARE THIS MANUAL
Download the PDF Manual
PDF viewer loading area
Text Preview from This Manual
The text below was extracted from the visible preview pages to help you confirm the manual contents before download.
--- Page 1 ---
SEAM0081 01
Operation
& Maintenance
Manual
DH E,P=
BULLDOZER
SERIAL NUMBERS
D41E B20001n andup
D41P - B20001
This material is proprietary to Komatsu America International Company and is not to be reproduced, used, or disclosed
except in accordance with written authorization from Komatsu America International Company.
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 add 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, periodic revisions may be made to this publication.
lt is recommended that customers contact their distributor for information on the latest revision.
March 1996 Copyright 1996 Komatsu America International Company
--- Page 3 ---
A ~fgJ;M&
Foiereasons of safety, always
6. GENERAL PRECAUTIONS ty precautrons.
SAEE
l ONLY trained and authorized personnel can operate and maintain the machine.
l Follow all safety rules, precautions and instructions when operating or performing maintenance
on the machine.
l When working with another operator or a person on worksite traffic duty, be sure all personnel
understand all hand signals that are to be used.
Be sure all guards and covers are in their proper position. Rave guards and covers repaired if
1
damaged.
Proper position + See “12.1.1 WALK-AROUND CHECK”.
Use safety features such as the safety lock and seat belts properly.
NEVER remove any safety features. ALWAYS keep them in good operating condition.
Safety lever -) See “12.10 PARKING MACHINE”.
Seat belts + See “12.1.4 USING SEAT BELT”.
Improper use of safety features could result in serious bodily injury or death.
CLOTHING AND PERSONAL PROTECTIVE ITEMS
Avoid loose clothing, jewelry, and loose long hair. They can catch on controls or in moving parts
and cause serious injury or death. Also, do not wear oily clothes because they are flammable.
Wear a hard hat, safety glasses, safety shoes, mask or gloves when operating or maintaining the
machine. Always wear safety goggles, hard hat and heavy gloves if your job involves scattering
metal chips or minute materials - this is so particularly when driving pins with a hammer and when
cleaning the air cleaner element with compressed air.
Check also that there is no one near the machine.
Cleaning of air cleaner element -) See “24.1 WHEN REQUIRED” in service procedure.
l-2
--- Page 4 ---
A WARNING: For reasons of safety, always
7. PRECAUTIONS DURING OPERATION follow these safety precautions.
Avoid operating your machine too close to the edge of cliffs, overhangs, and deep ditches. If these
areas collapse, your machine could fall or tip over and result in serious injury or death. Remember
that the soil after heavy rain or blasting is weakened in these areas.
Earth laid on the ground and the soil near ditches are loose. They can collapse under the weight
or vibration of your machine.
Install the HEAD GUARD or FOPS if working in areas where there is danger of falling rocks and
dirt.
When working in places where there is danger of falling rocks or danger of the machine turning
over, install ROPS and a seat belt.
PARKING THE MACHINE
Park on level ground whenever possible. If not possible, block the tracks, lower the blade to the
ground and thrust the edge of the blade in the ground.
Am44050
When parking on public roads, provide fences and signs, such as flags or lights, on the machine
to warn passersby to be careful. Be sure that the machine, flags or lights do not obstruct traffic.
Parking procedure -* See “12.10 PARKING MACHINE”.
Before leaving the machine, lower the work equipment to the ground, move the SAFETY LEVER
to LOCK position, stop the engine, and lock all the doors, windows, and covers and remove the
key(s).
Work equipment posture + See “12.10 PARKING MACHINE”.
Locks + See “12.14 LOCKING”.
1-12
--- Page 5 ---
A ~+l/;~~e~;,easons qf safety, always
8. PRECAUTIONi FOR MAINTENANCE y precautrons.
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE AT
HIGH TEMPERATURE OR HIGH PRESSURE
l immediately after stopping operations, the engine cooling water and oil at all parts is at high
temperature and under high pressure.
In this condition, if the cap is removed, or the oil or water are drained, or the filters are replaced,
this may result in burns or other injury. Wait for the temperature to go down, then carry out the
inspection and maintenance in accordance with the procedures given in this manual.
Clean inside or cooling system -) See “24.1 WHEN REQUIRED”.
Check cooling water level, lubricating oil level + See “24.2 CHECK BEFORE STARTING”.
Checking oil level in hydraulic tank, final drive case + See “24.4 PERIODIC MAINTENANCE”.
Changing oil, replacing filters + See “24.5 - 7 PERIODIC MAINTENANCE”.
PRECAUTIONS WHEN USING HIGH PRESSURE
GREASE TO ADJUST TRACK TENSION
Grease is pumped into the track tension adjustment system under high pressure.
If the specified procedure for maintenance is not followed when making adjustments, the plug or
grease fitting may fly out and cause damage or personal injury.
l When loosening the grease drain plug, never loosen it more than one turn.
l Never put your face, hands, feet, or any other part of your body directly in front of any grease
drain plug or valve.
Adjusting track tension + See “24.1 WHEN REQUIRED”.
ROTATING FAN AND B
0 Keep away from rotating parts and be careful not to let anything get caught in them.
l If your body or tools touch the fan blades or fan belt, they may be cut off or sent flying, so never
touch any rotating parts.
A0055210
l-22
--- Page 6 ---
11. EXPLANATION OF COMPONENTS
11.1 FRONT PANEL (METERS, LAMPS,
SWITCHES)
11.1.1 MONITOR PANEL
1. SERVICE METER
This meter shows the total operation hours of the machine. The
service meter advances while the engine is running - even if the
machine is not traveling.
Set the periodic maintenance intervals using this display.
When the engine is running, the green pilot lamp @ at the top
of the meters flashes to indicate that the meter is advancing.
Meter @ will advance by 1 for each hour of operation regardless
of the engine speed.
2. ENGINE WATER TEMPERATURE GAUGE
This gauge indicates the cooling water temperature.
When the indicator is in the white range during operation, the
water temperature is normal.
If the indicator moves from the white range into the red range
during operation, stop the machine immediately, run the engine
under no load at a midrange speed, and wait for the indicator to go
AEQE.1614
down to the white range.
After starting the engine, warm up it until the indicator moves
into the white range.
2-6
--- Page 7 ---
11. EXPLANATION OF COMPONENTS
3. GLOW SWITCH (MONITOR PANEL SPECIFICATION)
This actuates the electrical heater to warm up the engine intake
air.
OFF position: The preheating is not actuated.
AUTO position: AUTO preheating is actuated. The length of the
preheating time varies according to the ambient temperature when ADO51791
the ambient temperature is below approx. -5°C.
I position: This is used when AUTO preheating is not enough to start
the engine in cold weather simply with the glow switch at the AUTO
position.
When the switch is released, it will return to the AUTO position.
II position: This is used when carrying out preheating manually
without using AUTO preheating.
When the switch is released, it will return to the OFF position.
4. STARTlNG SWITCH
This switch is used to start or stop the engine.
OFF ( @ ) position:
O:F
The kev can be inserted or withdrawn. The switches for the
electric sysiem are all turned off and the engine is stopped.
Do not the starting switch key at the OFF position while the
engine is running.
ON position: -START
In this position, electric current flows in the charging and lamp
AD051780
circuits.
Keep the starting switch key at the ON position while the engine
is running.
START ( 0 ) position:
This is the position to start the engine. Hold the key at this
position while cranking. Release the key immediately after the
engine has been started. The key will return to ON position when
released.
2-16
--- Page 8 ---
11. EXPLANATION OF COMPONENTS
11.5 GREASE PUMP HOLDER
This is inside the left engine side cover.
Fit the grease pump to the holder when it is not being used.
11 .6 DOOR-OPEN LOCK
(MACHINES EQUIPPED WITH CAB)
Use this when your want to keep the door held open.
1. Push the open door into door catch 0. The door will be held in
position by the door catch.
2. To release the door, move lever @ inside the cab to the front of
the cab. This will release the catch.
NOTICE
l When keeping the door open, fix it securely to the catch.
l Always close the door when traveling or carrying out opera-
tions. Leaving the door open will cause the door to break.
l Keep the door locked open securely.
The door may swing closed because of the vibration.
11.7 OPENING AND CLOSING REAR WINDOW Open
(MACHINES EQUIPPED WITH CAB)
The rear glass can be opened or closed with a quarter lock.
If the left and right lock levers of the quarter lock are pulled up
and pushed out at the same time, the glass moves to the open
position.
If the left and right lock levers of the quarter lock are pulled up
AEl44380
and pulled back in at the same time, the glass moves to the closed
position.
NOTICE
Keep the rear glass closed when traveling or during operations.
Leaving it open will cause damage to the glass.
2-26
--- Page 9 ---
11. EXPLANATION OF COMPONENTS
11 .I22 PRECAUTIONS WHEN USING
l If the head is dirty, clean it with a head cleaning tape.
0 Never touch the head with a magnet, screwdriver, or any other
hard object.
l Use a pencil to wind the tape to the outside to remove any slack.
0 When not listening to the cassette tape, always remove it.
l Put the tape in its case. Do not keep the tape in any of the
following places.
0 On top of the instrument panel
0 Any place where it is exposed to direct sunlight
0 Any place that is excessively humid
0 Any place that is excessively dusty
0 Any place where there is a strong magnetic field (near a speaker,
etc.)
0 Any place where there is high temperature (near the car heater,
etc.)
l Use a C-60 (60 minute) tape. Avoid using longer tapes as far as
possible. In particular, do not use C-120 (120 minute) tapes.
These tapes easily get caught up in the machine.
0 When replacing the fuse, always use a 5A fuse.
0 Do not put anything except a cassette tape in the tape insertion
port.
l When cleaning, wipe off the dirt with a dry cloth. Never use any
organic solvent such as thinner of benzene.
2-36
--- Page 10 ---
12. OPERATION
12.1.2 CHECK BEFORE STARTING
Always carry out the items in this section before starting the
engine each day.
CHECK COOLANT LEVEL, ADD WATER
A WARNING
Normally, do not open the radiator cap. When checking the
cooling water level, check the sub-tank when the engine is cold.
1. Open the engine side cover on the left side of the chassis, and
check that the cooling water is between the FULL and LOW
marks on sub-tank 0. if the water level is low, add water to the
FULL level through the water filler port in sub-tank 0.
REMARK
In summer, the coolant may overflow from the sub-tank drain
hose. This is no problem. It occurs because too much coolant has
been added.
2. After adding water, tighten the cap securely.
3. If the sub-tank is empty, check for leakage of water, then add FULL -
water to the radiator and sub-tank.
LOW -
4. After adding water, close the engine side cover.
AEl4b.m
CHECKING WITH MACHINE MONITOR Machines equipped with cab
1. Turn starting switch @ to the ON position.
2. Check that all monitor lamps light up for 3 seconds, the warning
lamp lights up for 2 seconds, and the alarm buzzer sounds for
1 second.
REMARK
l If the lamps do not light up, there may be a failure or disconnec-
tion in the monitor, so please contact your Komatsu distributor. Machines equipped with canopy
l When carrying out the checks before starting, do not relay only
on the monitor. Always carry out all the items listed for periodic
maintenance.
I OFF
-START
2-46
--- Page 12 ---
12. OPERATION
12.2.2 STARTING IN COLD WEATHER Machines eauitmed with cab
When starting in low temperatures, do as follows.
a WARNING
Never use starting aid fluids as they may cause explosions.
NOTICE
Do not keep the starting motor rotating continuously for more
than 20 seconds. Machines equipped with canopy
If the engine fails to start, repeat steps 2 and 3 after waiting for
about 2 minutes.
AM087330
1. Pull fuel control lever @to a position midway between the low
idling and full speed positions.
2. Insert the key into starting switch @ and turn the key to the ON
OFF
position.
3. Carry out preheating.
There are the following two ways of carrying out preheating.
First use the convenient automatic preheating system.
2-56
--- Page 13 ---
12. OPERATION
12.8 STOPPING MACHINE Machines equipped with cab
7 A WARNING -1
Avoid stopping suddenly. Give yourself ample room when
stopping.
When stopping the machine, select flat hard ground and
avoid dangerous places. If it is unavoidably necessary to park
the machine on a slope, place the parking lever in the LOCK 4820
position and insert blocks underneath the track shoes. As an
additional safety measure, thrust the blade into the ground. Machines equipped with canopy
If the work equipment control lever is touched by accident,
the work equipment may move suddenly, and this may lead
to a serious accident. Before leaving the operator’s seat,
always operate the safety lever to place it securely at the
LOCK position.
144330
1.
1. Depress brake pedal @ to stop the machine.
I Ah4037540
2. Place joystick @ in the N (neutral) position.
As5144570
3. Operate joystick @ to 1st. and check that speed range display
window 6J shows the correct position.
1st
nd
AEl44560
2-66
--- Page 14 ---
12. OPERATION
12.16.2 INSPECTION AND ADJUSTMENT
Clearance A
l Properly adjust track tension.
Tension should be measured at clearance @ shown in the
diagram - usually 20 to 30 mm (0.8 to 1.2 in) at this point. For
rocky terrain, tighten tracks slightly. In clay or sandy areas,
slightly loosen them., (For inspection and adjustment proce-
dures, refer to “24.1 WHEN REQUIRED”).
AE144970
l Check idler rollers for oil leakage as well as for loose bolts and
nuts. If any trouble is detected, repair immediately.
12.16.3 INSPECTION AND REPAIR
Frequent inspection and prompt repair will reduce repair costs.
The following items for inspection will serve as a guide to
maintenance service of each undercarriage part. Perform periodical
inspection and contact the Komatsu distributor in your area when
machine has approached repairable limits and reversing limits.
MEASURING LINK PITCH
1. Insert a wooden block between track shoe and sprocket to take
up the slack in track shoes.
2. Measure pitch length of 4 links in stretched portion at more than
2 links away from master pin. Of length obtained, l/4 is the link
pitch.
Basic link pitch (P): 171.5 mm (6.8 in)
Link pitch limit for turning: 174.5 mm (6.9 in)
W‘JL)
REMARK
There is no link window on the master link.
_*
MEASURING HEIGHT OF GROUSER (D41E)
After taking up slack in track shoes, measure height at center of
shoe as shown below.
Standard height (h): 53 mm (2.1 in)
Repair limits: 25 mm (I in)
2-76
--- Page 15 ---
16. TROUBLESHOOTING
16.1 AFTER RUNNING OUT OF FUEL
When starting after running out of fuel, fill with fuel and bleed
the air from the fuel system before starting.
For details of bleeding the air, see “24.5 EVERY 500 HOURS SERVICE”
16.2 IF BAlTERY IS DISCHARGED
a WARNING
When checking or handling the battery, stop the engine and
turn the starting key to the OFF position before starting.
The battery generates hydrogen gas, so there is danger of
explosion. Do not bring lighted cigarettes near the battery, or
do anything that will cause sparks.
Battery electrolyte is dilute sulphuric acid, and it will attack
your clothes and skin. lf it gets on your clothes or on your
skin, wash it immediately off with large amounts of water. lf
it gets in your eyes, wash it out with fresh water, and consult
a doctor.
When removing the battery, first disconnect the cable from
the ground (normally, from the negative @ terminal). When
installing, install the positive @ terminal first. If a tool touches
the cable connecting the positive terminal and the chassis,
there is danger that it will cause sparks.
If the terminals are loose, there is danger that the defective
contact may generate sparks that will cause an explosion.
When installing the terminals, install them tightly.
When installing, connect the
16.2.1 STARTING ENGINE WITH BOOSTER CABLE cable to the positive @ ter-
minal first
When starting the engine with a booster cable, do as follows:
2-86
--- Page 16 ---
18. OUTLINES OF SERVICE
0 Use Komatsu genuine parts for replacement.
o When changing or adding oil, do not use a different type of oil.
o Unless otherwise specified, the oil and coolant used at the time of shipment from the factory are as
shown in the table below.
item Kind of ‘fluid
SAE 15W-40
Engine oil pan
API classification
Damper case
Transmission case SAE 30
Steering clutch case API classification
Final drive case
SAE IOW
Hydraulic tank
API classification
ASTM 0975 No. 2
(However, ASTM D975 No. 1 is
Fuel tank
used for the winter season
(October to March))
Komatsu Super Coolant
Radiator
(AF-ACL) 41% added to water
18.1 OUTLINE OF OIL, FUEL, COOLANT
18.1.1 OIL
Oil is used in the engine and work equipment under extremely severe conditions (high temperature,
high pressure), and it deteriorates with use.
Always use oil that matches the grade and temperature for use given in the Operation and
Maintenance Manual. Even if the oil is not dirty, always replace the oil after the specified interval.
Oil corresponds to blood in the human body, so always be careful when handling it to prevent any
impurities (water, metal particles, dirt, etc.) from getting in.
The majority of problems with machine are caused by the entry of such impurities.
Take particular care not to let any impurities get in when storing or adding oil.
Never mix oils of different grades or brands.
Always add the specified amount of oil.
Having too much oil or too little oil are both causes of problems.
If the oil in the work equipment is not clear, there is probably water or air getting into the circuit.
In such cases, please contact your Komatsu distributor.
When changing the oil, always replace the related filters at the same time.
We recommend you to have an analysis made of the oil periodically to check the condition of the
machine. For those who wish to use this service, please contact your Komatsu distributor.
3-4
--- Page 17 ---
22. PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS
To ensure safety at all times when operating or driving the machine, the user of the machine must
always carry out periodic maintenance. In addition, to further improve safety, the user should also carry
out periodic replacement of the parts given in the table. These parts are particularly closely connected
to safety and fire prevention_
With these parts, the material changes as time passed, or they easily wear or deteriorate. However,
it is difficult to judge the condition of the parts simply by periodic maintenance, so they should always
be replaced after a fixed time has passed, regardless of their condition. This is necessary to ensure that
they always maintain their function completely.
However, if these parts show any abnormality before the replacement interval has passed, they
should be repaired or replaced immediately.
If the hose clamps show any deterioration, such as deformation or cracking, replace the clamps at
the same as the hoses.
When replacing the hoses, always replace the O-rings, gaskets, and other such parts at the same
time.
Ask your Komatsu distributor to replace the critical parts.
No. Safety critical parts for periodic replacement QW Replacement interval
1 Fuel hose (fuel tank - feed pump) 1
2 Fuel hose (feed pump - fuel filter) 1
3 Fuel hose (fuel filter - injection pump) 1
4 Fuel hose (injection pump - fuel tank1 1
5 Fuel hose (injection nozzle - fuel tank) 1
6 Turbocharger lubrication hose 1
7 Hose (power train strainer - power train pump) 1
(power train pump - power train filter) I 1 I
9 Hose (power train filter - priority valve) 1 Every 2 years or 4000
hours, whichever comes
10 Hose (priority valve -transmission case) 1 sooner
11 Hose (transmission case - oil cooler) 1
12 Hose (oil cooler - transmission case) 1
13 Hose (priority valve - PPC valve) 1
14 Hose (PPC valve - brake valve) 2
15 Hose (PPC valve - clutch piston) 2
Hose (PPC valve - transmission case)
Hose (brake valve - brake piston)
3-14
--- Page 18 ---
24. SERVICE PROCEDURE
NOTICE
If small holes or thinner parts are found on the element when
it is checked with an electric bulb after cleaning and drying, replace
the element.
Do not use an element whose folds or gasket or seal are
damaged.
When cleaning the element, do not hit it or beat it against
something.
4. Set the cleaned element and cover 0.
Replacing inner element
1. First remove the cover and the outer element, and then remove
the inner element.
2. To prevent dust from getting in, use a clean cloth or tape to cover
the air connector (outlet side).
3. Clean the air cleaner body interior, then remove the cover
installed in Step 2.
4. Fit a new inner element to the connector and tighten it with nuts.
Do not clean and reinstall a inner element.
5. Install the outer element and the cover.
6. After replacing the element, return the red piston ‘in the dust
indicator to its original position.
3-24
--- Page 19 ---
24. SERVICE PROCEDURE
24.2.3 CHECK FUEL LEVEL, ADD FUEL
This may cause
a fire. If you spill fuel, thoroughly clean up any spillage.
1. Turn the engine starting switch to the ON position and check the
fuel level with fuel level gauge 0 on the monitor panel.
After checking, turn the switch back to the OFF position.
2. After completing work, fill the fuel tank through oil filler port 0.
For details of the method of opening and closing the cap, see
II 1.8 CAP WITH LOCK”.
For details of the fuel to use, see “20. USE OF FUEL, COOLANT
AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE”.
AE144450
3. After adding fuel, tighten the cap securely.
Fuel capacity: 225 J?(59.4 US gal, 49.5 UK gal)
24.2.4 CHECK OIL LEVEL IN ENGINE OIL PAN, ADD OIL
1. Open the engine side cover on the left side of the chassis.
2. Remove dipstick @ and wipe the oil off with a cloth.
3. Insert dipstick @I fully in the oil filler pipe, then take it out again.
4. The oil level should be between the H and L marks on dipstick
AEl44460
0.
If the oil is below the L mark, open the inspection cover on top
of the engine hood and add engine oil through oil filler 0.
For details of the oil to use, see “20. USE OF FUEL, COOLANT
AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE”.
5. If the oil is above the H mark, drain the excess engine oil from
drain plug 8, and check the oil level again.
AE211640
6. If the oil level is correct, tighten the oil filler cap securely and
close the engine side cover.
REMARK
When checking the oil level after the engine has been operated,
wait for at least 15 minutes after stopping the engine before check-
ing_
If the machine is at an angle, make it horizontal before checking.
The oil level between the L and H marks is 7.5 e (2.0 US gal, 1.7 UK
gal).
3-34
--- Page 20 ---
24. SERVICE PROCEDURE
24.4.7 CHECK BRAKE PERFORMANCE
A WARNING
If the machine moves during the following operation, please
contact your Komatsu distributor for repairs immediately.
NOTICE
Do not place the gear shift lever in 1st under any circumstances.
The machine will be damaged.
,
Before starting the engine, check that the area around the
machine is safe, then do as follows.
1. Depress inching pedal GJ fully.
2. Start the engine.
3. Set safety lever @I to the FREE position then operate blade
control lever @ to raise the blade.
Leave the safety lever to the FREE position.
4. Set parking lever @ to the FREE position.
5. Operate fuel control lever @ and pull to a ‘position midway
between the low idling and high idling positions.
6. Depress brake pedal 0, set joystick @ to 2nd, check that the
display on speed range display window @I shows 2nd, then Machines equipped with canopy
move joystick @ to the FORWARD position.
7. Keep brake pedal @ depressed and slowly release inching pedal
0.
a. If the machine does not move with the above operation when the
engine is stopped, the service brake is normal.
9. Next, check the parking brake. I
Move the machine to a slope and stop it with the front facing
downhill.
AD171570
10. With the engine running, depress the brake pedal and return the
directional lever to neutral to stop the machine on the slope.
11. Push the parking brake lever down to the lock position. Then
release the brake pedal and check that the machine does not
move. If the machine does not move, the parking brake is
normal.
3-44
--- Page 21 ---
24.7.2 CHANGE OIL IN FINAL DRIVE CASE
Prepare the following.
0 Container to catch drained oil: Min. 13 0 capacity
0 Refill capacity: 13 I! (3.4 US gal, 2.9 UK gal)
1. Stop the machine so that drain plug @ is directly at the bottom.
2. Remove oil level plug 0, then remove drain plug 0, and drain
the oil. After draining the oil, tighten the plugs.
3. Add engine oil through. the hole in oil level plug @ to the
specified level (oil overflows from the plug hole).
For details of the oil to use, see “20. USE OF FUEL, COOLANT
AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE”.
4. Check that the oil is at the specified level.
For details, see “24.4 EVERY 250 HOURS SERVICE”.
5. Install oil level plug 0.
24.7.3 CHECK ALTERNATOR, STARTING MOTOR
The brush may be worn, or the bearing may have run out of
grease, so contact your Komatsu distributor for inspection or repair.
If the engine is started frequently, carry out inspection every
1000 hours.
24.7.4 CHECK VIBRATION DAMPER
Check for any cracks or peeling on the outside surface of the
rubber.
If there are any cracks or peeling, please contact your Komatsu
distributor to have the parts replaced.
24.7.5 CHECK ENGINE VALVE CLEARANCE, ADJUST
Contact your Komatsu distributor for inspection or adjustment.
3-54