Komatsu WA320-5H Manual

Komatsu has had the operating and maintenance instructions
translated into all the languages of the European Union.
Should you require a copy in another language please inquire
at your local dealer’s.
Operation & Maintenance
Manual
Incorrect operation and maintenance of this machine
may be hazardous and cause injuries. The operator and
maintenance personnel must read this manual before
commencing operation or maintenance. Keep this
manual within reach at all times and ensure that
operating personnel read it at regular intervals.
SERIAL NUMBERS WA320H50051 AND UP
-5H
VEAM240100
WHEEL LOADER
NOTE
DANGER

FOREWORD
11

FOREWORD FOREWORD
1-2
FOREWORD 1
This manual provides rules and guidelines which will help you use this machine safely and effectively. The pre-
cautions 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. Acci-
dents can be prevented by knowing beforehand conditions that may cause a hazard when performing operation
and maintenance.
WARNING
Operators and maintenance personnel must always do as follows before beginning operation or mainte-
nance.
Always be sure to read and understand this manual thoroughly before performing operation and mainte-
nance.
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 Maintenance Manual 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 imme-
diately 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:
Pocket (1) at rear of operator's seat

FOREWORD FOREWORD
1-3
EU DIRECTIVES 0.
Machines supplied by us fulfil the Directive for Machinery 89/392/EEC and all supplements. If the machine is being
used in another country, it is possible that certain safety regulations and specifications may not be fulfilled for use
in that country. For example, priority vehicle warning lamps may be used in some countries, but are forbidden in
others.
Please contact our dealer before using the machine if you have any questions regarding the fulfilment of standards
and regulations in a specific country.
Notes on subsequent installation of electrical and electronic equipment and components
Electrical and electronic equipment and/or components which have been installed subsequently, emit electromag-
netic radiation which can influence the function of the electronic components and sections of the machine. This
can have an influence on the safety of the machine and endanger persons. For this reason, please ensure that the
following safety instructions are observed.
If you are installing electrical or electronic equipment and/or components in the machine and connect them to the
vehicle electrical system, you must check at own responsibility that the installations do not cause any disturbance
to the vehicle’s electronic system or other components. Above all, you must ensure that any subsequently installed
electrical and electronic components comply with the EMV Directive 89/336/EEC in its current edition and bear the
CE mark.
The following requirements also have to be met for subsequent installation of mobile communication systems (e.g.
radio, telephone):
qOnly equipment approved by national legislation (e.g. BZT approval for Germany) may be used
qThe unit must be fixed in position
qPortable or mobile units may only be used inside the vehicles if they are connected to a fixed outside
antenna
qThe transmitter unit must be spatially separated from the vehicle’s electronic system
qMake sure when installing the antenna that this is installed correctly with good earth connection between
antenna and vehicle mass
Also observe Komatsu and manufacturer’s installation instructions for wiring, installation and maximum permitted
power consumption.

SAFETY INFORMATION FOREWORD
1-4
SAFETY INFORMATION 1
To enable you to use this machine safely, safety precautions and labels are given in this manual and affixed to the
machine to give explanations of situations involving potential hazards and of the methods of avoiding such situa-
tions.
Signal words
The following signal words are used to inform you that there is a potential hazardous situation that may lead to per-
sonal injury or damage.
In this manual and on machine labels, the following 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 seri-
ous injury.
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 mod-
erate injury. This word is used also to alert against unsafe practices that may cause prop-
erty damage.
Example of safety message using signal word
WARNING
When standing up from the operator's seat, always place the safety lock lever in the LOCK position.
If you accidentally touch the control levers when they are not locked, this may cause a serious injury or
death.
Other signal words
In addition to the above, the following signal words are used to indicate precautions that should be followed to pro-
tect the machine or to give information that is useful to know.
This word is used for precautions that must be taken to avoid actions which could shorten
the life of the machine.
This word is used for information that is useful to know.

FOREWORD SAFETY INFORMATION
1-5
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.
For details of safety labels, see "SAFETY LABELS (2-3)".
Safety labels using pictogram
Safety pictograms use a picture to express a level of hazard-
ous condition equivalent to the signal word. These safety picto-
grams 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 condi-
tion at the top or left side, and the method of avoiding the haz-
ardous 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 circles in the illustrations correspond to the
numbers in ( ) in the text. (For example: 1-> (1))

INTRODUCTION FOREWORD
1-6
INTRODUCTION 1
This loader is a machine with independent transmission, moving on chains or wheels. Driving in forward direction,
the loader can load or dig material using its attachments intended for loading operations (i.e. bucket).
The standard operation cycle of a loader includes filling up and loading of the bucket, transporting the material and
emptying the bucket.
INTENDED USE
If you use the machine for any other purpose than specified above, we will not accept any responsibility for safety.
All considerations concerning safety will then be up to the owner or the operating and maintenance personnel. In
any case, neither you nor any other person are/is authorised to perform work and functions explicitly prohibited in
these operating instructions.
The transport of persons in the work equipment is strictly forbidden!
For details of the operating procedure, see “WORK POSSIBLE USING WHEEL LOADER (3-86)“.
DIRECTIONS OF MACHINE 1
In this manual, the directions of the machine (front, rear, left, right) are determined according to the view from the
operator's seat in the direction of travel (front) of the machine.
Front
Rear
RightLeft
Bucket

FOREWORD NECESSARY INFORMATION
1-7
NECESSARY INFORMATION 1
When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following
items.
MACHINE SERIAL NO. PLATE AND POSITION 1
On the center right of the front frame.
ENGINE SERIAL NO. PLATE AND POSITION 1
This is on the side face of the engine cover on the right side of the machine.
EPA: Environmental Protection Agency, U.S.A.

NECESSARY INFORMATION FOREWORD
1-8
ROPS/FOPS-CAB SERIAL NO. PLATE
This plate is located on the right inside cab on the rear beam.
AXLE SERIAL NO. PLATE
This plate is located on the right of front axle and on the left of
rear axle.
TRANSMISSION SERIAL NO. PLATE
This plate is located in travel direction front, above the
transmission output.
SEAT OPERATOR SERIAL NO. PLATE
This plate is located in front of seat, covered by the bellows.

FOREWORD NECESSARY INFORMATION
1-9
POSITION OF SERVICE METER 1
It is at the center bottom of the machine monitor.
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR 1
Machine serial No.
Engine serial No.
Distributor name
Address
Service Personnel
Phone/Fax

CONTENTS FOREWORD
1-10
CONTENTS
FOREWORD
FOREWORD....................................................................................................................................................... 1-2
SAFETY INFORMATION.................................................................................................................................... 1-4
INTRODUCTION................................................................................................................................................. 1-6
INTENDED USE ............................................................................................................................................ 1-6
DIRECTIONS OF MACHINE ......................................................................................................................... 1-6
NECESSARY INFORMATION ........................................................................................................................... 1-7
MACHINE SERIAL NO. PLATE AND POSITION .......................................................................................... 1-7
ENGINE SERIAL NO. PLATE AND POSITION ............................................................................................. 1-7
ROPS/FOPS-CAB SERIAL NO. PLATE ........................................................................................................ 1-8
AXLE SERIAL NO. PLATE ............................................................................................................................ 1-8
TRANSMISSION SERIAL NO. PLATE .......................................................................................................... 1-8
SEAT OPERATOR SERIAL NO. PLATE ....................................................................................................... 1-8
POSITION OF SERVICE METER.................................................................................................................. 1-9
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR ................................................................................. 1-9
CONTENTS ...................................................................................................................................................... 1-10
DIMENSIONS, WEIGHTS AND OPERATING DATA ...................................................................................... 1-17
WA320-5H: DIMENSIONS, WEIGHTS AND OPERATING DATA............................................................... 1-17
CE-CONFORMING EQUIPMENT..................................................................................................................... 1-18
CE-CONFORMING EQUIPMENT................................................................................................................ 1-18
MANUFACTURER-SUPPLIED CE-CONFORMING EQUIPMENT, ACCORDING TO DOCUMENT 421-93-
H1900 ..................................................................................................................................................... 1-19
SAFETY
SAFETY LABELS............................................................................................................................................... 2-3
LOCATION OF SAFETY LABELS ................................................................................................................. 2-3
PRESENTATION OF SAFETY LABELS........................................................................................................ 2-4
GENERAL PRECAUTIONS ............................................................................................................................... 2-7
PRECAUTIONS FOR OPERATION ................................................................................................................. 2-17
STARTING ENGINE .................................................................................................................................... 2-17
OPERATION ................................................................................................................................................ 2-19
TRANSPORTATION .................................................................................................................................... 2-25
BATTERY..................................................................................................................................................... 2-26
TOWING ...................................................................................................................................................... 2-28
PRECAUTIONS FOR MAINTENANCE ............................................................................................................ 2-29
PRECAUTIONS WITH TIRES .......................................................................................................................... 2-36
OPERATION
GENERAL VIEW ................................................................................................................................................ 3-2
GENERAL VIEW OF MACHINE .................................................................................................................... 3-2
GENERAL VIEW OF CONTROLS AND GAUGES........................................................................................ 3-3
EXPLANATION OF COMPONENTS.................................................................................................................. 3-5
MACHINE MONITOR..................................................................................................................................... 3-5
MONITOR SYSTEM ................................................................................................................................. 3-6
TYPES OF WARNING .............................................................................................................................. 3-7

FOREWORD CONTENTS
1-11
CENTRAL WARNING LAMP .................................................................................................................... 3-7
CHARACTER DISPLAY PORTION .......................................................................................................... 3-8
EMERGENCY STOP ITEM .................................................................................................................... 3-14
CAUTION ITEMS.................................................................................................................................... 3-16
WARNING/LIMIT FUNCTIONS FOR TRAVEL SPEED.......................................................................... 3-18
INSPECTION AND MAINTENANCE ITEM............................................................................................. 3-19
PILOT DISPLAY PORTION .................................................................................................................... 3-22
METER DISPLAY PORTION.................................................................................................................. 3-25
OTHER FUNCTIONS OF MACHINE MONITOR.................................................................................... 3-27
SWITCHES .................................................................................................................................................. 3-30
CONTROL LEVERS, PEDALS .................................................................................................................... 3-39
STEERING TILT LOCK LEVER................................................................................................................... 3-43
CAP AND COVER WITH LOCK .................................................................................................................. 3-43
SAFETY BAR............................................................................................................................................... 3-44
TOWING PIN ............................................................................................................................................... 3-45
GREASE PUMP........................................................................................................................................... 3-45
CAB DOOR INNER LOCK........................................................................................................................... 3-45
CAB DOOR OPEN LOCK............................................................................................................................ 3-46
CAB WINDOW OPEN LOCK CANCEL KNOB ............................................................................................ 3-46
FUSE ........................................................................................................................................................... 3-46
FUSE CAPACITY AND NAME OF CIRCUIT.......................................................................................... 3-47
SLOW BLOW FUSE .................................................................................................................................... 3-48
POWER OUTLET ........................................................................................................................................ 3-48
STORAGE BOX........................................................................................................................................... 3-48
AIR CONDITIONER..................................................................................................................................... 3-49
GENERAL LOCATIONS AND FUNCTION OF CONTROL PANEL ....................................................... 3-49
METHOD OF OPERATION .................................................................................................................... 3-52
PRECAUTIONS WHEN USING.............................................................................................................. 3-53
HANDLING CAB WIPER ............................................................................................................................. 3-53
PREVENTING DAMAGE TO WIPER ARM BRACKET .......................................................................... 3-53
OPERATION..................................................................................................................................................... 3-54
CHECK BEFORE STARTING ENGINE, ADJUST....................................................................................... 3-54
WALK-AROUND CHECK ....................................................................................................................... 3-54
CHECK BEFORE STARTING ................................................................................................................ 3-57
ADJUSTMENT........................................................................................................................................ 3-63
OPERATIONS AND CHECKS BEFORE STARTING ENGINE .............................................................. 3-68
STARTING ENGINE .................................................................................................................................... 3-70
NORMAL STARTING ............................................................................................................................. 3-70
STARTING IN COLD WEATHER ........................................................................................................... 3-72
OPERATIONS AND CHECKS AFTER STARTING ENGINE ...................................................................... 3-74
BREAKING-IN THE MACHINE............................................................................................................... 3-74
NORMAL OPERATION .......................................................................................................................... 3-75
STOPPING ENGINE.................................................................................................................................... 3-76
MOVING THE MACHINE (DIRECTIONAL, SPEED), STOPPING THE MACHINE .................................... 3-77
MOVING THE MACHINE........................................................................................................................ 3-77
CHANGING DIRECTION........................................................................................................................ 3-79
STOPPING THE MACHINE.................................................................................................................... 3-81
TURNING..................................................................................................................................................... 3-82
EMERGENCY STEERING ..................................................................................................................... 3-83
OPERATION OF WORK EQUIPMENT ....................................................................................................... 3-84
WORK POSSIBLE USING WHEEL LOADER ............................................................................................. 3-86
DIGGING OPERATIONS........................................................................................................................ 3-86
LEVELING OPERATIONS...................................................................................................................... 3-89
PUSHING OPERATION ......................................................................................................................... 3-89
LOAD AND CARRY OPERATIONS .......................................................................................................3-89
LOADING OPERATIONS ....................................................................................................................... 3-90
PRECAUTIONS FOR OPERATION ............................................................................................................ 3-92
PERMISSIBLE WATER DEPTH............................................................................................................. 3-92
IF WHEEL BRAKE DOES NOT WORK.................................................................................................. 3-92

CONTENTS FOREWORD
1-12
PRECAUTIONS WHEN DRIVING UP OR DOWN SLOPES .................................................................. 3-92
ADJUSTING WORK EQUIPMENT POSTURE............................................................................................ 3-94
ADJUSTING BOOM KICKOUT............................................................................................................... 3-94
ADJUSTING BUCKET POSITIONER .....................................................................................................3-95
BUCKET LEVEL INDICATOR ................................................................................................................ 3-95
PARKING MACHINE ................................................................................................................................... 3-96
CHECK AFTER STOPPING ENGINE ......................................................................................................... 3-97
CHECKS AFTER COMPLETION OF OPERATION .................................................................................... 3-97
LOCKING ..................................................................................................................................................... 3-98
HANDLING THE TIRES............................................................................................................................... 3-99
PRECAUTIONS WHEN HANDLING TIRES ........................................................................................... 3-99
TIRE PRESSURE ................................................................................................................................... 3-99
PRECAUTIONS FOR USING LOAD AND CARRY METHOD.............................................................. 3-100
TRANSPORTATION....................................................................................................................................... 3-101
TRANSPORTATION PROCEDURE .......................................................................................................... 3-101
LOADING, UNLOADING WORK WITH TRAILERS................................................................................... 3-101
LOADING.............................................................................................................................................. 3-101
SECURING MACHINE ......................................................................................................................... 3-102
UNLOADING......................................................................................................................................... 3-103
LIFTING MACHINE.................................................................................................................................... 3-104
LOCATION OF LIFTING POSITION MARK ......................................................................................... 3-105
WEIGHT TABLE ................................................................................................................................... 3-105
LIFTING PROCEDURE ........................................................................................................................ 3-106
COLD WEATHER OPERATION .................................................................................................................... 3-107
PRECAUTIONS FOR LOW TEMPERATURE ........................................................................................... 3-107
FUEL AND LUBRICANTS .................................................................................................................... 3-107
COOLANT............................................................................................................................................. 3-107
BATTERY ............................................................................................................................................. 3-108
PRECAUTIONS AFTER COMPLETION OF WORK ................................................................................. 3-108
AFTER COLD WEATHER ......................................................................................................................... 3-109
WARMING-UP OPERATION FOR STEERING HYDRAULIC CIRCUIT IN COLD WEATHER ................. 3-109
LONG-TERM STORAGE................................................................................................................................3-110
BEFORE STORAGE.................................................................................................................................. 3-110
DURING STORAGE .................................................................................................................................. 3-110
AFTER STORAGE..................................................................................................................................... 3-110
TROUBLESHOOTING.................................................................................................................................... 3-111
WHEN MACHINE RUNS OUT OF FUEL...................................................................................................3-111
TOWING THE MACHINE........................................................................................................................... 3-111
WHEN ENGINE CAN BE USED........................................................................................................... 3-112
WHEN ENGINE CANNOT BE USED ................................................................................................... 3-112
IF BATTERY IS DISCHARGED ................................................................................................................. 3-113
REMOVAL AND INSTALLATION OF BATTERY.................................................................................. 3-113
PRECAUTIONS FOR CHARGING BATTERY ..................................................................................... 3-114
STARTING ENGINE WITH BOOSTER CABLE ................................................................................... 3-115
OTHER TROUBLE..................................................................................................................................... 3-117
ELECTRICAL SYSTEM ........................................................................................................................ 3-117
CHASSIS .............................................................................................................................................. 3-118
ENGINE ................................................................................................................................................ 3-120
MAINTENANCE
GUIDES TO MAINTENANCE............................................................................................................................. 4-2
OUTLINES OF SERVICE ................................................................................................................................... 4-4
HANDLING OIL, FUEL, COOLANT, GREASE AND CARRYING OUT KOWA (Komatsu Oil Wear Analysis)4-4
OIL ............................................................................................................................................................ 4-4
FUEL......................................................................................................................................................... 4-4
COOLANT................................................................................................................................................. 4-5

FOREWORD CONTENTS
1-13
GREASE ................................................................................................................................................... 4-5
CARRYING OUT KOWA (Komatsu Oil Wear Analysis) ........................................................................... 4-5
STORING OIL AND FUEL ........................................................................................................................ 4-6
FILTERS ................................................................................................................................................... 4-6
BIODEGRADABLE HYDRAULIC OIL AND LUBRICANTS ...................................................................... 4-7
OUTLINE OF ELECTRIC SYSTEM............................................................................................................... 4-7
WEAR PARTS.................................................................................................................................................... 4-8
WEAR PARTS LIST....................................................................................................................................... 4-8
FUEL, COOLANT AND LUBRICANTS.............................................................................................................. 4-9
LUBRICATION CHART ................................................................................................................................. 4-9
PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS ............................................................ 4-10
STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS................................................................... 4-15
TORQUE LIST ............................................................................................................................................. 4-15
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS ........................................................................ 4-16
MAINTENANCE SCHEDULE CHART ............................................................................................................. 4-17
MAINTENANCE SCHEDULE CHART ......................................................................................................... 4-17
SERVICE PROCEDURE .................................................................................................................................. 4-19
INITIAL 250 HOURS SERVICE ................................................................................................................... 4-19
WHEN REQUIRED ...................................................................................................................................... 4-20
CHECK, CLEAN, OR REPLACE AIR CLEANER ELEMENT ................................................................. 4-20
DUST PRE-EXTRACTOR "TURBO II": CHECK, CLEAN....................................................................... 4-22
CLEAN INSIDE OF COOLING SYSTEM................................................................................................ 4-23
CHECK OIL LEVEL IN TRANSFER CASE, ADD OIL ............................................................................ 4-26
CHECK AXLE OIL LEVEL, ADD OIL...................................................................................................... 4-27
CLEAN AXLE CASE BREATHER .......................................................................................................... 4-28
CLEAN AIR CONDITIONER CONDENSER........................................................................................... 4-29
CHECK WINDOW WASHING FLUID LEVEL, ADD FLUID.................................................................... 4-29
CLEAN RADIATOR FINS AND COOLER FINS ..................................................................................... 4-30
CLEAN TRANSFER OIL COOLER FINS ............................................................................................... 4-31
CHECK ELECTRICAL INTAKE AIR HEATER........................................................................................ 4-31
REPLACE BOLT ON CUTTING EDGE .................................................................................................. 4-32
REPLACE BUCKET TEETH................................................................................................................... 4-33
CHECK AIR CONDITIONER .................................................................................................................. 4-34
REPLACE SLOW BLOW FUSE ............................................................................................................. 4-35
SELECTION AND INSPECTION OF TIRES .......................................................................................... 4-36
CHECK BEFORE STARTING ..................................................................................................................... 4-38
EVERY 50 HOURS SERVICE ..................................................................................................................... 4-39
DRAIN WATER, SEDIMENT FROM FUEL TANK.................................................................................. 4-39
EVERY 100 HOURS SERVICE ................................................................................................................... 4-40
LUBRICATE REAR AXLE PIVOT PIN.................................................................................................... 4-40
CLEAN ELEMENT IN AIR CONDITIONER FRESH AIR FILTER........................................................... 4-40
CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL ........................................................................... 4-41
EVERY 250 HOURS SERVICE ................................................................................................................... 4-42
CHECK BATTERY ELECTROLYTE LEVEL........................................................................................... 4-42
CHECK PARKING BRAKE..................................................................................................................... 4-44
CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST ............................................ 4-44
CHECK FOR LOOSE WHEEL HUB BOLTS, TIGHTEN ........................................................................ 4-45
CLEAN ELEMENT IN AIR CONDITIONER RECIRCULATION FILTER ................................................ 4-46
LUBRICATING........................................................................................................................................ 4-46
EVERY 500 HOURS SERVICE ................................................................................................................... 4-48
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE ........................... 4-48
REPLACE FUEL FILTER CARTRIDGE ................................................................................................. 4-49
CLEAN WATER SEPARATOR STRAINER............................................................................................ 4-50
EVERY 1000 HOURS SERVICE ................................................................................................................. 4-51
CHANGE OIL IN TRANSFER CASE ...................................................................................................... 4-51
CLEAN TRANSFER CASE BREATHER ................................................................................................ 4-52
REPLACE HST OIL FILTER ELEMENT................................................................................................. 4-53
LUBRICATING........................................................................................................................................ 4-54
CHECK TIGHTENING PARTS OF TURBOCHARGER.......................................................................... 4-54

CONTENTS FOREWORD
1-14
CHECK PLAY OF TURBOCHARGER ROTOR...................................................................................... 4-54
CHECK ALTERNATOR DRIVING BELT TENSION AND REPLACEMENT........................................... 4-54
EVERY 2000 HOURS SERVICE ................................................................................................................. 4-55
CHANGE OIL IN HYDRAULIC TANK, REPLACE HYDRAULIC FILTER ELEMENT ............................. 4-55
REPLACE HYDRAULIC TANK BREATHER ELEMENT ........................................................................ 4-56
CLEANING THE STRAINER OF THE BRAKE FILTER ......................................................................... 4-57
CHANGE AXLE OIL................................................................................................................................ 4-58
REPLACE ELEMENT IN AIR CONDITIONER RECIRCULATION AIR FILTER, FRESH AIR FILTER .. 4-59
CHECK ALTERNATOR, STARTING MOTOR........................................................................................ 4-59
CHECK ENGINE VALVE CLEARANCE, ADJUST ................................................................................. 4-59
CHECK BRAKE DISC WEAR ................................................................................................................. 4-59
CLEAN AND CHECK TURBOCHARGER .............................................................................................. 4-60
CHECK ACCUMULATOR GAS PRESSURE ......................................................................................... 4-60
CHECK VIBRATION DAMPER............................................................................................................... 4-60
EVERY 4000 HOURS SERVICE ................................................................................................................. 4-61
LUBRICATING........................................................................................................................................ 4-61
CHECK WATER PUMP .......................................................................................................................... 4-61
TECHNICAL DATA
TECHNICAL DATA ............................................................................................................................................ 5-2
NOISE EMISSION LEVELS ............................................................................................................................... 5-4
VIBRATION LEVEL............................................................................................................................................ 5-4
ATTACHMENTS, OPTIONS
SELECTING BUCKET AND TIRES ................................................................................................................... 6-2
MACHINE MONITOR WITH LOAD METER ...................................................................................................... 6-3
EXPLANATION OF COMPONENTS ............................................................................................................. 6-3
MACHINE MONITOR ............................................................................................................................... 6-3
MONITOR PANEL MODE SELECTOR SWITCH 1 .................................................................................. 6-4
MONITOR PANEL MODE SELECTOR SWITCH 2 .................................................................................. 6-4
LOAD METER CANCEL SWITCH ............................................................................................................ 6-4
LOAD METER SUB TOTAL SWITCH ...................................................................................................... 6-5
MACHINE MONITOR..................................................................................................................................... 6-6
MONITOR SYSTEM ................................................................................................................................. 6-6
TYPES OF WARNING .............................................................................................................................. 6-7
CENTRAL WARNING LAMP .................................................................................................................... 6-7
CHARACTER DISPLAY PORTION .......................................................................................................... 6-8
EMERGENCY STOP ITEM .................................................................................................................... 6-14
CAUTION ITEMS .................................................................................................................................... 6-17
WARNING/LIMIT FUNCTIONS FOR TRAVEL SPEED.......................................................................... 6-19
INSPECTION AND MAINTENANCE ITEM............................................................................................. 6-20
PILOT DISPLAY PORTION .................................................................................................................... 6-23
METER DISPLAY PORTION .................................................................................................................. 6-26
LOAD METER......................................................................................................................................... 6-28
OTHER FUNCTIONS OF MACHINE MONITOR .................................................................................... 6-51
HANDLING MULTI-FUNCTION LEVER .......................................................................................................... 6-58
EXPLANATION OF COMPONENTS ........................................................................................................... 6-58
WORK EQUIPMENT LEVER.................................................................................................................. 6-58
DIRECTIONAL SELECTOR SWITCH .................................................................................................... 6-59
DIRECTIONAL SELECTOR SWITCH ACTUATION SWITCH ............................................................... 6-59
DIRECTIONAL SELECTOR PILOT LAMP ............................................................................................. 6-60
OPERATION ................................................................................................................................................ 6-61
USING SWITCH TO CHANGE BETWEEN FORWARD AND REVERSE .............................................. 6-61

FOREWORD CONTENTS
1-15
CENTRAL LUBRICATION SYSTEM ............................................................................................................... 6-63
OPERATING THE CENTRAL LUBRICATION SYSTEM............................................................................. 6-63
DISPLAY AND CONTROL UNIT ................................................................................................................. 6-63
LED-DISPLAY......................................................................................................................................... 6-64
PUSHBUTTONS..................................................................................................................................... 6-64
CHANGING THE LUBRICATION INTERVAL TIMES.................................................................................. 6-65
INDEX
INDEX ................................................................................................................................................................. 7-3
NOTES
NOTES................................................................................................................................................................ 8-2

CONTENTS FOREWORD
1-16

FOREWORD DIMENSIONS, WEIGHTS AND OPERATING DATA
1-17
DIMENSIONS, WEIGHTS AND OPERATING DATA
WA320-5H: DIMENSIONS, WEIGHTS AND OPERATING DATA
Measurements, operating data
Bucket capacity to ISO 7546 m³ 2,7
Material density t/m³ 1,8
Bucket weight without teeth kg 1.040
Static tipping load, straight kg 12.000
Static tipping load, 40° angle kg 10.355
Breakout force, hydraulic kN 134
Lifting capacity, hydraulic, on ground kN 155
Operating weight *) kg 14.040
a Reach at 45° discharge mm 990
b Dumping height at 45° discharge mm 2.855
c Lift height, hinge pin mm 3.910
d Height to upper edge of bucket mm 5.260
e Digging depth mm 105
A Overall length, bucket on ground mm 7.475
B Wheel base mm 3.030
C Bucket width mm 2.740 These values refer to machines with 20.5 R25
L3
D Width over tyres mm 2.525
E Gauge mm 2.050
F Ground clearance mm 440 *) Machine without additional counterweight
H Overall height mm 3.200
A
B
F
H
a
d
c
b
C
D
Ee
WA320-5Abm

CE-CONFORMING EQUIPMENT FOREWORD
1-18
CE-CONFORMING EQUIPMENT
CE-CONFORMING EQUIPMENT
CE-conforming equipment
12 345–
Type Part No. Volume
m³
Load
Capacity
kg
Hydraulic
pressure
bar
Weight
kg
Bucket WA320-5H
419-72-H2100 2,7 1.040
419-72-H2110 2,7 1.143
419-72-H2160 2,7 1.118
419-72-H2170 2,7 2.217
419-72-H2120 2,85 1.254
419-72-H2180 2,85 1.325
419-72-H2130 3,0 1.265
419-72-H2140 3,0 1.363
419-72-H2150 3,1 1.472
GK100392
5
4
3
2
1

FOREWORD CE-CONFORMING EQUIPMENT
1-19
MANUFACTURER-SUPPLIED CE-CONFORMING EQUIPMENT, ACCORDING
TO DOCUMENT 421-93-H1900
The responsibility for observing valid regulations in the case of
wheel loaders with "interchangeable equipment" (e.g. bucket or
fork-lift) which was not supplied from works lies with the cus-
tomer which was subsequently fitted to the machine.
The directives for CE conformity and road-traffic registration
are deemed to have been fulfilled when the manufacturer of the
equipment confirms fulfilment of the form 421-93-H1900 along-
side.
The certification must be sent to the customer and the wheel
loader manufacturer. The CE conformity declaration for a spe-
cific wheel loader is only legally valid once this has taken place.
The dimensions X1, X2, Y1 and Y2 must be provided by the
customer for approval for use on public roads. (valid in Ger-
many)
The dimension Sh (smallest tyre radius) must be added to the
dimension D2.
The figure G (in kg) represents the maximum load (equipment
and operating load) which may act upon this point.
D2
Sh
X1
Y1
Y2
X2
Sh
A2
A1
G
GK100395b