Hitachi Zw 310-6 User manual

310-6

ENMNFB-NA1-2ZW310-6 WHEEL LOADER OPERATOR'S MANUAL

PRINTED IN JAPAN (T) 2018, 06

URL:http://www.hitachi-c-m.com

ENMNFB-NA1-2

PART NO.

Wheel Loader

Operator's Manual

Serial No. 005201 and up

This book is printed on recycled paper.

INTRODUCTION

CALIFORNIA

Proposition 65 Warning

Diesel engine exhaust and some of its constituents are known

to the State of California to cause cancer, birth defects, and

other reproductive harm.

Read this manual carefully to learn how to operate and

service your machine correctly. Failure to do so could

result in personal injury or machine damage.

This standard specification machine can be operated

under the following conditions without being modified.

Atmospheric Temperature: -20 °C to 40 °C (-4 °F to 104 °F)

Altitude: 0 m to 2000 m (0 ft to 6600 ft)

In case the machine is used under conditions other than

described above, consult your authorized dealer.

This manual should be considered a permanent part of

your machine and should remain with the machine when

you sell it.

This machine is of metric design. Measurements in this

manual are metric. Use only metric hardware and tools as

specified.

Right-hand and left-hand sides are determined by

facing in the direction of forward travel.

Write product identification numbers in the Machine

Numbers section. Accurately record all the numbers

to help in tracing the machine should it be stolen.

Your dealer also needs these numbers when you order

parts. If this manual is kept on the machine, also file the

identification numbers in a secure place off the machine.

Use only diesel fuel with quality specified in JIS K-2204,

EN-590 or ASTM D-975 which contents 15 ppm or lower

sulfur.

Also use fuel that complies with solid contamination level

of class 18/16/13 of ISO4406-1999 (solid contamination

includes dust). If the fuel specified above is not used,

exhaust gas that exceeds the regulation values may be

discharged, causing serious problem on the engine.

Consult your authorized dealer.

Warranty is provided as a part of Hitachi’s support

program for customers who operate and maintain their

equipment as described in this manual. The warranty is

explained on the warranty certificate which you should

have received from your dealer.

This warranty provides you with the assurance that

Hitachi will back its products where defects appear within

the warranty period. In some circumstances, Hitachi also

provides field improvements, often without charge to the

customer, even if the product is out of warranty.

Should the equipment be abused, or modified to

change its performance beyond the original factory

specifications, the warranty will become void and field

improvements may be denied.

Setting fuel delivery above specifications or otherwise

overpowering machines will result in such action.

Only qualified, experienced operators officially licensed

(according to local law) should be allowed to operate

the machine. Moreover, only officially licensed personnel

should be allowed to inspect and service the machine.

PRIOR TO OPERATING THIS MACHINE, INCLUDING

COMMUNICATION SYSTEM, IN A COUNTRY OTHER

THAN A COUNTRY OF ITS INTENDED USE, IT MAY

BE NECESSARY TO MAKE MODIFICATIONS TO IT SO

THAT IT COMPLIES WITH THE LOCAL REGULATORY

STANDARDS (INCLUDING SAFETY STANDARDS)

AND LEGAL REQUIREMENTS OF THAT PARTICULAR

COUNTRY. PLEASE DO NOT EXPORT OR OPERATE

THIS MACHINE OUTSIDE OF THE COUNTRY OF ITS

INTENDED USE UNTIL SUCH COMPLIANCE HAS

BEEN CONFIRMED. PLEASE CONTACT HITACHI

CONSTRUCTION MACHINERY CO., LTD. OR ANY OF

OUR AUTHORIZED DISTRIBUTOR OR DEALER IF YOU

HAVE ANY QUESTIONS CONCERNING COMPLIANCE.

In this manual, urea water is indicated as DEF/AdBlue®.

“DEF” stands for the Diesel Exhaust Fluid. AdBlue®

is a registered trademark of the Verband der

Automobilindustrie e.V. (VDA).

All information, illustrations and specifications in this manual are based on the latest product information available at the

time of publication. The right is reserved to make changes at any time without notice.

T

MACHINE NUMBERS

SAFETY

SAFETY LABELS

COMPONENTS NAME

OPERATOR’S STATION

BREAK-IN

OPERATING THE ENGINE

MOVING THE MACHINE

OPERATING THE MACHINE

TRANSPORTING

MAINTENANCE

MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS

STORAGE

SPECIFICATIONS

OTHER ATTACHMENTS

INDEX

TROUBLESHOOTING

INDEX

ENMNFB-NA1-2

MEMO

..................................................................................................................................................................................................

CONTENTS

MACHINE NUMBERS .........................................................1

Machine ..................................................................................................1

Engine......................................................................................................1

Aftertreatment Device.......................................................................2

SAFETY .......................................................................... S-1

Recognize Safety Information ....................................................S-1

Understand Signal Words.............................................................S-1

Follow Safety Instructions............................................................S-2

Prepare for Emergencies...............................................................S-3

Wear Protective Clothing..............................................................S-3

Protect Against Noise ....................................................................S-4

Inspect Machine ..............................................................................S-4

General Precautions for Cab........................................................S-5

Use Handrails and Steps ...............................................................S-6

Never Ride Attachment.................................................................S-6

Adjust Operator’s Seat...................................................................S-6

Ensure Safety Before Rising from or Leaving Operator’s

Seat .................................................................................................S-7

Fasten Your Seat Belt......................................................................S-7

Move and Operate Machine Safely...........................................S-8

Handle Starting Aids Safely .........................................................S-8

Operate Only from Operator’s Seat ..........................................S-9

Jump Starting ...................................................................................S-9

Investigate Job Site Beforehand ............................................. S-10

Equipment of Head Guard, ROPS, FOPS............................... S-11

Provide Signals for Jobs Involving Multiple Machines

....................................................................................................... S-11

Keep Riders Off Machine ........................................................... S-12

Drive Safely..................................................................................... S-12

Drive Machine Safely (Work Site)............................................ S-13

Drive Safely with Bucket Loaded ............................................ S-14

Drive on Snow Safely .................................................................. S-14

Travel on Public Roads Safely................................................... S-15

Avoid Injury from Rollaway Accidents.................................. S-15

Avoid Accidents from Backing Up and Turning ................ S-16

Avoid Positioning Bucket or Attachment Over

Anyone........................................................................................ S-17

Avoid Tipping................................................................................. S-17

Never Undercut a High Bank.................................................... S-18

Dig with Caution........................................................................... S-18

Perform Truck Loading Safely .................................................. S-18

Avoid Power Lines........................................................................ S-19

Precautions for Operation......................................................... S-19

Precautions for Lightning.......................................................... S-19

Object Handling ........................................................................... S-20

Protect Against Flying Debris .................................................. S-20

Park Machine Safely..................................................................... S-21

Store Attachments Safely.......................................................... S-21

Transport Safely ............................................................................ S-22

Handle Fluids Safely−Avoid Fires............................................S-23

Practice Safe Maintenance ....................................................... S-24

Warn Others of Service Work ................................................... S-25

Support Machine Properly........................................................ S-25

Stay Clear of Moving Parts ........................................................ S-26

Support Maintenance Properly............................................... S-26

Prevent Parts from Flying .......................................................... S-27

Prevent Burns................................................................................. S-27

Replace Rubber Hoses Periodically........................................ S-28

Avoid High-Pressure Fluids....................................................... S-28

Prevent Fires................................................................................... S-29

Evacuating in Case of Fire.......................................................... S-30

Beware of Exhaust Fumes..........................................................S-31

Precautions for Welding and Grinding ................................. S-31

Avoid Heating Near Pressurized Fluid Lines....................... S-31

Avoid Applying Heat to Lines Containing Flammable

Fluids ........................................................................................... S-32

Precautions for Handling Accumulator and Gas

Damper....................................................................................... S-32

Precautions for Diesel Exhaust Fluid (DEF).......................... S-32

Remove Paint Before Welding or Heating........................... S-33

Beware of Asbestos and Silicon Dust and Other

Contamination......................................................................... S-33

Prevent Battery Explosions ....................................................... S-34

Service Air Conditioning System Safely ............................... S-34

Handle Chemical Products Safely........................................... S-35

Dispose of Waste Properly......................................................... S-35

Notes for Aftertreatment Device ............................................ S-36

Precautions for Communication Terminal........................... S-36

Precaution for Communication Terminal Equipment ..... S-37

Articulation Stopper (Lock Bar)............................................... S-38

SAFETY LABELS........................................................... S-39

COMPONENTS NAME.................................................... 1-1

Components Name ........................................................................1-1

OPERATOR’S STATION .................................................. 1-3

Aftertreatment Device...................................................................1-3

Automatic regeneration ..............................................................1-5

Repeated inhibiting of aftertreatment device

cleaning ...................................................................................1-6

Cab Features......................................................................................1-7

Front Console....................................................................................1-8

Right Console....................................................................................1-9

Fingertip Control Type .............................................................1-9

Multi-Function Joystick Type ..............................................1-10

Monitor Panel ................................................................................1-11

Parking Brake Indicator (Red)...................................................1-12

Brake Oil Low Pressure Indicator (Red)................................. 1-12

Hydraulic Oil Level Indicator (Red)......................................... 1-12

Low Steering Oil Pressure Indicator (Red)(Option) ..........1-13

Transmission Warning Indicator (Red)..................................1-13

Communication Error Indicator (Yellow) ............................. 1-13

Discharge Warning Indicator (Red)........................................ 1-13

Engine Warning Indicator (Red).............................................. 1-14

Overheat Indicator (Red) ...........................................................1-14

Engine Oil Low Pressure Indicator (Red) ..............................1-14

Air Filter Restriction Indicator (Red)....................................... 1-15

Preheat Indicator (Yellow)......................................................... 1-15

Coolant Temperature Gauge....................................................1-16

CONTENTS

Fuel Gauge......................................................................................1-16

Turn Signal Indicator (Green) ...................................................1-17

High Beam Indicator (Blue)....................................................... 1-17

Work Light Indicator (Yellow)................................................... 1-17

Clearance Light Indicator (Green) .......................................... 1-18

Control lever lock indicator (Red)........................................... 1-18

Multi Function Monitor ..............................................................1-19

Screen Configuration.............................................................1-19

Default Setting ..............................................................................1-20

Basic Screen....................................................................................1-21

How to Use Screens.....................................................................1-22

Displaying Basic Screen........................................................ 1-22

Monitor Operation ................................................................. 1-26

Alarm Occurrence Screen.......................................................... 1-27

Remedy............................................................................................ 1-29

DEF/SCR System Alarm...............................................................1-31

DEF/AdBlue® Level Alarm .................................................... 1-31

Urea SCR System Malfunction............................................ 1-32

Aftertreatment Device Regeneration ................................... 1-33

Aftertreatment Device Regeneration

Status Display ..................................................................... 1-33

Automatic regeneration (Auto-regeneration).............. 1-34

Manual Regeneration............................................................ 1-35

Main Menu......................................................................................1-36

Ride Control Drive Speed Setting (Option).........................1-37

Dual Lift Arm Auto-Leveler .......................................................1-38

Height Kickout ON/OFF, Stop Height Setting............... 1-39

Lower Kickout ON/OFF, Stop Height Setting ................ 1-40

Brightness Adjustment...............................................................1-41

Mail (Option) ..................................................................................1-43

Setting Menu .................................................................................1-45

Date and Time................................................................................1-46

Time adjustment..................................................................... 1-46

Date Adjustment.....................................................................1-48

Display Mode Setting............................................................ 1-50

Auto Idling Stop............................................................................1-52

Auto idling stop: ON/OFF.....................................................1-52

Acting Time Setting................................................................ 1-53

Rear View Camera Monitor .......................................................1-54

Aftertreatment Device Regeneration Inhibit ..................... 1-56

Setting Procedure................................................................... 1-56

Transmission Setting...................................................................1-58

Shift Change Delay Mode Setting ...................................1-58

Lockup Setting......................................................................... 1-60

Parallel/Tandem Switching Height Setting.........................1-62

Warm Up Operation ....................................................................1-64

Display Item Selection................................................................ 1-66

Main Menu Display Order Change......................................... 1-68

Information Menu........................................................................ 1-70

Operation Condition...................................................................1-71

Fuel Consumption .................................................................. 1-71

Maintenance ..................................................................................1-73

Maintenance Notice............................................................... 1-73

Time Remains and Maintenance Interval....................... 1-75

Troubleshooting ...........................................................................1-77

Monitoring......................................................................................1-79

Switches, Steering Wheel and Pedals....................................1-81

Hazard Switch................................................................................ 1-82

Work Light Switch ........................................................................1-83

Parking Brake Switch...................................................................1-84

Neutral Lever Lock (for the Forward/Reverse Lever) ....... 1-85

Steering Wheel..............................................................................1-85

Horn Switch.................................................................................... 1-85

Key Switch.......................................................................................1-86

Turn Signal Lever ..........................................................................1-87

Light Switch.................................................................................... 1-88

High-Low Beam Switch.............................................................. 1-89

Accelerator Pedal..........................................................................1-90

Brake Pedal .....................................................................................1-90

Service Brake ............................................................................ 1-90

Declutch Brake......................................................................... 1-90

Forward/Reverse Lever/ Shift Switch ....................................1-91

Forward/Reverse Lever .........................................................1-91

Shift Switch ...............................................................................1-91

Wiper Switch ..................................................................................1-92

Wiper Operation...................................................................... 1-92

Front/Rear Wiper Switch....................................................... 1-93

Tilt, Telescopic Lever/Steering Column Tilt Pedal .............1-94

Right Console / Switches...........................................................1-95

Fingertip Control Type ..........................................................1-95

Loading Control Levers ..............................................................1-96

Lift Arm Control Lever........................................................... 1-96

Bucket Control Lever .............................................................1-96

Right Console / Switches...........................................................1-98

Multi-Function Joystick Type ..............................................1-98

Loading Multi-Function Joystick Lever (Option)............... 1-99

Auxiliary Control Lever (Option) ...........................................1-100

Forward/Reverse Selector Switch.........................................1-101

Operational Procedure........................................................1-101

Loading Control Lever Lock Switch .....................................1-102

Declutch Position Switch.........................................................1-102

Travel Mode Selector Switch..................................................1-103

Power Mode Selector Switch .................................................1-104

Fan Reverse Rotation Switch..................................................1-105

OFF.............................................................................................1-105

AUTO ........................................................................................1-105

Manual Operation ................................................................1-106

Hydraulic Coupler Switch (Option)......................................1-106

Secondary Steering Operation Check Switch

(Option) ....................................................................................1-107

Aftertreatment Device Regeneration Switch...................1-107

Ride Control Switch (Option) .................................................1-108

AUTO..........................................................................................1-109

OFF.............................................................................................1-109

Hold Switch ..................................................................................1-110

Right Console Slide Lever........................................................1-110

Quick Power Switch...................................................................1-111

DSS (Down Shift Switch)..........................................................1-112

Horn Switch .................................................................................1-112

Cigar Lighter (24 V DC Electrical Outlet) ............................1-113

Using Cigar Lighter...............................................................1-113

Ash Tray..........................................................................................1-113

Auto Air Conditioner.................................................................1-114

Feature......................................................................................1-114

CONTENTS

Components Name..............................................................1-115

Controller Part Name and Function ...............................1-116

Mode/Temperature Control Switch..........................1-116

Fan/AUTO Switch.............................................................1-117

Air Conditioner ON/OFF Switch .................................1-117

Circulation/Fresh Air Switch ........................................1-117

Defroster Switch ..............................................................1-117

Cab Heater Operation .........................................................1-118

Cooling Operation................................................................1-119

Defroster Operation.............................................................1-120

Cool Head/Warm Feet Operation....................................1-120

Tips for Optimal Air Conditioner Usage .............................1-121

For Rapid Cooling .................................................................1-121

When Windows Become Fogged ....................................1-121

Off-Season Air Conditioner Maintenance....................1-121

Adjusting Operator's Seat

(Air Suspension Type Seat) ................................................1-122

Components Name..............................................................1-122

Rear Tray ........................................................................................1-123

Electric Power Output (Option).............................................1-123

Fuse Box.........................................................................................1-124

Fuse Box A ...............................................................................1-125

Fuse Box B................................................................................1-125

Hot/Cool Box................................................................................1-126

Tray and Drink Holder...............................................................1-126

ROPS Cab.......................................................................................1-127

Front Interior Light.....................................................................1-129

Rear Interior Light ......................................................................1-129

Sun Visor........................................................................................1-130

Emergency Exit Hammer.........................................................1-130

Coat/Hat Hook.............................................................................1-130

Upper Switch Panel (Option)..................................................1-131

Rotary Light Switch (Option)..................................................1-131

Outside Rear View Mirror.........................................................1-132

Inside Rear View Mirror ............................................................1-132

Cab Door........................................................................................1-132

Door Lock Knob ..........................................................................1-133

Door Open/Close Lever............................................................1-133

Window Open/Close Levers ...................................................1-133

When Fully Opening the Door...............................................1-134

Cab Door Release Lever ...........................................................1-134

Battery Disconnect Switch .....................................................1-135

Switch Operation ..................................................................1-136

Articulation Stopper (Lock Bar).............................................1-137

Towing Pin ....................................................................................1-138

Inspection/Maintenance Side Access Cover.....................1-139

Rear Grille......................................................................................1-140

Steps................................................................................................1-141

Tool Box .........................................................................................1-141

Vandal-Resistant Devices.........................................................1-142

Seat Belt.........................................................................................1-144

Seat Pocket ...................................................................................1-144

BREAK-IN ....................................................................... 2-1

Break-in Period for New Machine..............................................2-1

Work Mode for Break-in ................................................................2-1

OPERATING THE ENGINE .............................................. 3-1

Inspect Machine Daily Before Starting ....................................3-1

Check Before Starting....................................................................3-3

Starting Engine ................................................................................3-5

Starting in Cold Weather...............................................................3-7

Preheating ....................................................................................3-7

Check After Starting .......................................................................3-8

Check the monitor operation................................................3-8

Check engine noise and exhaust gas color......................3-8

Using Booster Batteries.................................................................3-9

Warm Up.......................................................................................... 3-11

Cold Weather Warm Up.............................................................. 3-12

Stopping Engine...........................................................................3-14

MOVING THE MACHINE ................................................ 4-1

Driving the Machine.......................................................................4-1

Precautions for starting to move..........................................4-1

Starting to Move..............................................................................4-2

Shift Range of Auto Transmission ........................................4-5

Power Mode Selector ...............................................................4-6

Shift Change Delay Mode .......................................................4-6

Parking Brake Switch......................................................................4-7

Drive Speed Change.......................................................................4-8

Changing Forward/Reverse Drive Direction..........................4-8

Steering Wheel.................................................................................4-9

Secondary Steering (Option) ...................................................4-10

Emergency Stop and Restart of Operation......................... 4-11

Precautions for traveling ...................................................... 4-12

Operating in Water or on Soft Ground............................ 4-13

Precautions for Driving on Slopes.......................................... 4-14

Precautions to be Taken if Machine Failure Occurs..........4-15

Stop ................................................................................................... 4-16

Parking .............................................................................................4-18

Emergency Stopping ..................................................................4-19

OPERATING THE MACHINE........................................... 5-1

Loading Control Levers .................................................................5-1

Fingertip Control Type .............................................................5-1

Loading Multi-Function Joystick Lever (Option) ............5-3

Control Lever Lock ..........................................................................5-4

Declutch Position Switch..............................................................5-5

Adjustment of Bucket Auto Leveler..........................................5-6

Adjustment of Bucket Angle Switch.........................................5-8

Adjustment of Dual Lift Arm Auto Leveler.......................... 5-10

Auto Idling Stop............................................................................5-11

Auto Idling Stop Operating condition ............................ 5-12

Aftertreatment Device Manual Regeneration ...................5-13

Manual Regeneration Procedure ......................................5-13

Before Operation ..........................................................................5-16

Precautions for Operation.........................................................5-16

Ensure Safety When Operating on Road Shoulders ........ 5-16

Avoid Overloading.......................................................................5-16

Avoid Rapid Steering Changes and/or Sudden

Braking........................................................................................ 5-16

Avoid Operation with Loads on Only One Side................. 5-16

CONTENTS

Excavation.......................................................................................5-17

Loading Accumulated Soil...................................................5-17

Digging and Loading Level Ground................................. 5-18

Grading ............................................................................................5-19

Loading ............................................................................................5-20

Load and Carrying Method ................................................. 5-20

Loader and Dump Truck Combination Method...........5-21

V-Shape Loading..................................................................... 5-21

I-Shape Loading ...................................................................... 5-21

Dumping into Truck or Hopper..........................................5-22

Dozing.............................................................................................. 5-23

Stock Piling .....................................................................................5-23

Removing Snow............................................................................5-24

Lifting Wheel Loader................................................................... 5-24

Precautions for After Operation..............................................5-25

TRANSPORTING ............................................................ 6-1

Transporting by Road ....................................................................6-1

Selecting a Trailer ............................................................................6-1

Loading / Unloading on Trailer...................................................6-2

Ramp/Loading Dock.................................................................6-2

Loading / Unloading on Trailer .............................................6-3

Fastening Machine for Transporting ........................................6-4

Transporting Wheel Loader (Urgent Situation) ....................6-5

Precautions for Driving On Roads........................................6-5

Precautions for Towing ............................................................6-6

Releasing Parking Brake ..........................................................6-7

Towing Method................................................................................6-9

Lifting Machine .............................................................................6-10

MAINTENANCE.............................................................. 7-1

Correct Maintenance and Inspection Procedures...............7-1

Check the Hour Meter Regularly................................................7-3

Layout ............................................................................................7-4

Lubrication Guide......................................................................7-5

Preparations for Inspection and Maintenance .....................7-7

Articulation Lock..............................................................................7-9

Inspection/ Maintenance Side Access Cover......................7-10

Rear Grille........................................................................................ 7-11

Inspection and Maintenance Table........................................ 7-12

Kind of Oils...................................................................................... 7-16

Grease .........................................................................................7-16

Engine Oil .................................................................................. 7-16

Transmission Oil ...................................................................... 7-16

Axle Oil........................................................................................7-17

Hydraulic Oil ............................................................................. 7-17

Recommended Coolant ....................................................... 7-17

List of Consumable Parts ........................................................... 7-18

A. Greasing......................................................................................7-20

B. Engine.......................................................................................... 7-25

Check Engine Oil Level ......................................................... 7-25

Check Crankcase Breather Tube ........................................ 7-26

Change Engine Oil .................................................................7-27

Replace Engine Oil Filter.......................................................7-28

Replace Crankcase Air Breather Element ....................... 7-30

Check Vibration Damper...................................................... 7-32

C. Power Train ................................................................................ 7-33

Check Transmission Oil Level..............................................7-33

Change Transmission Oil...................................................... 7-34

Change Transmission Oil Filter........................................... 7-34

Clean Transmission Strainer................................................ 7-34

Clean Torque Converter Air Breather...............................7-37

Check Axle Oil Level...............................................................7-38

Change Axle Oil....................................................................... 7-39

Check Surroundings Around Axle and Covers for

Oil Leaks................................................................................ 7-40

Clean Axle Housing Air Breather....................................... 7-41

D. Hydraulic System.....................................................................7-42

Inspection and Maintenance of Hydraulic

Equipment ...........................................................................7-42

Check Hydraulic Oil Level ....................................................7-44

Change Hydraulic Oil............................................................. 7-45

Bleed Air from the Hydraulic System..........................7-46

Bleed Air from the Hydraulic Circuit........................... 7-46

Clean Suction Filter ................................................................7-47

Clean Pilot Oil Filter................................................................7-48

Line Filter in Brake Circuit............................................... 7-48

Line Filter in Steering Circuit ......................................... 7-49

Replace Hydraulic Oil Return Filter................................... 7-50

Replace Air Breather Element............................................. 7-51

Check Pilot Circuit Accumulator Function,

Gas Leakage, Looseness, and Damage...................... 7-52

Check Ride Control Accumulator Function,

Gas Leakage, Looseness, and Damage (Option).... 7-53

Check Gas Pressure in Ride Control Accumulator

(Option).................................................................................7-53

Check Gas Pressure in Steering Accumulator...............7-53

Check Hoses and Lines .........................................................7-54

Service Recommendations for Hydraulic

Fittings................................................................................... 7-57

Flat Face O-ring Seal Fitting (ORS Fitting)................. 7-57

Metal Face Seal Fittings................................................... 7-58

E. Fuel System................................................................................ 7-59

Check Fuel Level......................................................................7-59

Recommended Fuel ......................................................... 7-59

About Biodiesel Fuel ........................................................7-59

Refueling ..............................................................................7-60

Drain Water and Sediment from Fuel Tank .................... 7-61

Drain Fuel Filter........................................................................ 7-62

Bleed Air from the Fuel System ....................................7-63

Replace Fuel Main Filter Element......................................7-64

Replace Fuel Pre-Filter Element.........................................7-64

Clean Fuel Pump Strainer.....................................................7-66

Check Fuel Hoses .................................................................... 7-67

F. Air Cleaner...................................................................................7-68

Replace Air Cleaner Element...............................................7-68

Clean Dust Ejection Valve ....................................................7-69

Check Air Inlet System .......................................................... 7-70

G. Cooling System ........................................................................7-71

Coolant .......................................................................................7-71

LLC Mixing Table ..................................................................... 7-71

Supplement Coolant Additive DCA4...............................7-71

CONTENTS

Precautions for Using DCA4................................................ 7-71

Check Coolant Level .............................................................. 7-72

Check Drive Belt ...................................................................... 7-73

Replace DCA4 Coolant Filter Cartridge........................... 7-74

Inspection Procedures of Coolant Concentration....... 7-75

Clean Radiator/Oil Cooler Cores and Other Cooling

System ...................................................................................7-78

Check Drive Belt Tensioner.................................................. 7-79

Change Coolant.......................................................................7-80

H. Electrical System......................................................................7-82

Batteries .....................................................................................7-82

Electrolyte Level Check ................................................... 7-84

Check Electrolyte Specific Gravity...............................7-85

Replace Batteries ...............................................................7-86

Check Monitor Functions and All Other Instrument

Operation .............................................................................7-86

Check Work Lights ..................................................................7-86

Check Horn and Backup Alarm..........................................7-87

Check Electrical Harnesses and Fuses ............................. 7-88

Fuse Box A ................................................................................. 7-89

Fuse Box B..................................................................................7-89

I. Brake System...............................................................................7-90

Check Right and Left Brake Interlocking

Performance........................................................................ 7-90

Check Parking Brake Force ..................................................7-91

Check Accumulator Function, Gas Leakage,

Looseness, and Damage................................................. 7-92

Check Gas Pressure in Accumulator................................. 7-93

Check Brake Disks (Service and Parking)........................ 7-93

J. Tire..................................................................................................7-94

Check and Replace Tire (Tire Pressure)............................7-94

Check Tire for Damage..........................................................7-95

Check Wheel Bolt Torque .....................................................7-95

Replace Tire...............................................................................7-95

Tire Sizes to be Used.............................................................. 7-96

Tire Rotation ............................................................................. 7-97

Removal and Installation of Tire........................................ 7-98

K. Air Conditioner .........................................................................7-99

Clean/Replace Air Conditioner Circulation/Fresh

Air Filters............................................................................... 7-99

Clean Fresh Air Filter......................................................... 7-99

Clean Circulation Air Filter............................................7-100

Check Air Conditioner.........................................................7-101

Check Air Conditioner Piping ...........................................7-101

Check Air Conditioner Condenser..................................7-102

Check Air Conditioner Compressor Belt.......................7-102

Compressor Belt Tension Adjustment Procedure7-102

Check Refrigerant .................................................................7-103

Replace Air Conditioner Receiver Dryer .......................7-103

Check Compressor and Pulley..........................................7-103

L. Aftertreatment Device .........................................................7-104

Check and Clean Aftertreatment Device......................7-104

M. Urea SCR System...................................................................7-105

Specified DEF/AdBlue® .......................................................7-105

Check DEF/AdBlue® Level ..................................................7-106

Refill DEF/AdBlue®................................................................7-106

Replace DEF/AdBlue® ..........................................................7-108

Replace DEF/AdBlue® Supply Module Main Filter ....7-109

N. Miscellaneous.........................................................................7-110

Check Bucket Teeth and Cutting Edge..........................7-110

Check and Replace Seat Belt and Lower Tether.........7-111

Check ROPS Cab, Resin Cab Roof, and Roof

Mounting Bolts.................................................................7-111

Check Windshield Washer Fluid Level ...........................7-111

Check Play Amount in Steering Wheel Movement...7-112

Check Accelerator Pedal Operation, and Exhaust

Gas Color and Noise .......................................................7-113

Check Rearview Mirror and Inside Rearview

Mirror ...................................................................................7-114

Check Steps and Handrails for Damage and

Looseness...........................................................................7-114

Clean Engine Compartment and Hood ........................7-115

Check Sound Absorbing Mat Around Engine ............7-115

Retighten Front Axle and Rear Axle Support

Mounting Bolts.................................................................7-115

Check and Adjust Valve Clearance..................................7-115

Check Tightening Torque of Nuts and Bolts................7-116

Tightening Torque Chart...............................................7-116

MAINTENANCE UNDER SPECIAL ENVIRONMENTAL

CONDITIONS ................................................................. 9-1

Maintenance Under Special Environmental Conditions...9-1

Precautions for Maintenance During Cold Weather

Season............................................................................................9-2

STORAGE ..................................................................... 10-1

Storing the Machine.................................................................... 10-1

Precaution Items for Long-Time Storage........................10-1

Removing the Machine from Storage............................. 10-2

TROUBLESHOOTING................................................... 11-1

Troubleshooting ...........................................................................11-1

SPECIFICATIONS ......................................................... 12-1

Specifications.................................................................................12-1

Intended Use ............................................................................ 12-1

OTHER ATTACHMENTS ............................................... 13-1

Joystick Steering........................................................................... 13-1

Joystick Steering (Optional)................................................ 13-1

Joystick Steering Lever ......................................................... 13-2

Forward/Reverse Switch (Left) ........................................... 13-2

DSS (Down Shift Switch) ...................................................... 13-2

Wiper Switch.............................................................................13-2

Joystick Steering Selector.................................................... 13-3

Forward/Reverse Switch.......................................................13-4

Left Console Lock Release Lever........................................ 13-5

Adjusting the Switch Box Fore/Aft Position ..................13-6

Adjusting the Vertical Height of the Left Console....... 13-6

Left Armrest Angle Adjustment......................................... 13-6

Switch Box Angle Adjustment............................................ 13-6

CONTENTS

Operating Procedures ........................................................... 13-7

Descriptions of Warnings...................................................13-10

Axle Oil Cooler.............................................................................13-12

Axle Oil Cooler (Optional) ..................................................13-12

Maintenance Guide of the Axle Oil Cooler ..................13-12

Axle Oil......................................................................................13-12

Check Axle Oil Level.............................................................13-13

Change Axle Oil .....................................................................13-14

Replace Axle Oil Cooler Line Filter (Option) ................13-15

Clean Axle Oil Cooler Fins (Option) ................................13-16

INDEX........................................................................... 14-1

1

MACHINE NUMBERS

The manufacturing Nos. explained in this group is the

individual number (serial No.) given to each machine and

hydraulic components. These numbers are requested when

inquiring any information on the machine and/or components.

Fill these serial Nos. in the blank spaces in this group to

immediately make them available upon request.

Machine

TYPE :

MACHINE

SERIAL NUMBER:

Engine

TYPE :

MFG. NO. :

90MNFB-00-01

QSL9-4B_plate

ZW_US_PIN

MACHINE NUMBERS

2

Aftertreatment Device

SCR

TYPE :

MFG. NO. :

DOC

TYPE :

MFG. NO. :

90Z7B_SCR_SN

S-1

SAFETY

Recognize Safety Information

These are the SAFETY ALERT SYMBOLS.

When you see these symbols on your machine or in this

manual, be alert to the potential for personal injury.

Follow recommended precautions and safe operating

practices.

Understand Signal Words

On machine safety signs, signal words designating the

degree or level of hazard - DANGER, WARNING, or CAUTION

- are used with the safety alert symbol.

DANGER indicates an imminently hazardous situation

which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation

which, if not avoided, could result in death or serious

injury.

CAUTION indicates a potentially hazardous situation

which, if not avoided, may result in minor or moderate

injury.

DANGER or WARNING safety signs are located near

specific hazards. General precautions are listed on

CAUTION safety signs.

Some safety signs do not use any of the designated signal

words above after the safety alert symbol has been used

on this machine.

To avoid confusing machine protection with personal

safety messages, a signal word IMPORTANT indicates a

situation which, if not avoided, could result in damage to

the machine.

fNOTE indicates an additional explanation for an

element of information.

SA-2644

SA-1223

SAFETY

S-2

Follow Safety Instructions

Carefully read and follow all safety signs on the machine

and all safety messages in this manual.

Safety signs should be installed, maintained and replaced

when necessary.

If a safety sign or this manual is damaged or missing,

order a replacement from your authorized dealer in the

same way you order other replacement parts (be sure to

state machine model and serial number when ordering).

Learn how to operate the machine and its controls correctly

and safely.

Allow only trained, qualified, authorized personnel to

operate the machine.

Keep your machine in proper working condition.

Unauthorized modifications of the machine may impair

its function and/or safety and affect machine life.

Do not modify any machine parts without authorization.

Failure to do so may deteriorate the part safety, function,

and/or service life. In addition, personal accident,

machine trouble, and/or damage to material caused by

unauthorized modifications will void Hitachi Warranty

Policy.

Never attempt to modify or disassemble the inlet/exhaust

parts and the aftertreatment device. Avoid giving shocks

on the aftertreatment device by striking elements with

other objects or dropping the elements. Failure to do

so may affect the exhaust gas purifying device, possibly

damaging it or lowering its performance.

Do not use attachments and/or optional parts or

equipment not authorized by Hitachi. Carefully read and

follow all instructions for use and safety in the operator's

manual for the attachment. Failure to do so may

deteriorate the safety, function, and/or service life of the

machine. In addition, personal accident, machine trouble,

and/or damage to material caused by using unauthorized

attachments and/or optional parts or equipment will void

Hitachi Warranty Policy.

The safety messages in this SAFETY chapter are intended

to illustrate basic safety procedures of machines. However

it is impossible for these safety messages to cover every

hazardous situation you may encounter. If you have any

questions, you should first consult your supervisor and/

or your authorized dealer before operating or performing

maintenance work on the machine.

SA-003

SAFETY

S-3

Prepare for Emergencies

Be prepared if a fire starts or if an accident occurs.

Keep a first aid kit and fire extinguisher on hand.

Thoroughly read and understand the label attached on

the fire extinguisher to use it properly.

To ensure that a fire extinguisher can be always used

when necessary, check and service the fire extinguisher

at the recommended intervals as specified in the fire

extinguisher manual.

Establish emergency procedure guidelines to cope with

fires and accidents.

Keep emergency numbers for doctors, ambulance

service, hospital, and fire department posted near your

telephone.

Wear Protective Clothing

Wear close fitting clothing and safety equipment

appropriate to the job.

You may need:

A hard hat

Safety shoes

Safety glasses, goggles, or face shield

Heavy gloves

Hearing protection

Reflective clothing

Wet weather gear

Respirator or filter mask.

Be sure to wear the correct equipment and clothing for the

job. Do not take any chances.

Avoid wearing loose clothing, jewelry, or other items that

can catch on control levers or other parts of the machine.

Operating equipment safely requires the full attention of

the operator. Do not wear radio or music headphones while

operating the machine.

SA-438

SA-437

SAFETY

S-4

Protect Against Noise

Prolonged exposure to loud noise can cause impairment or

loss of hearing.

Wear a suitable hearing protective device such as

earmuffs or earplugs to protect against objectionable or

uncomfortably loud noises.

Inspect Machine

Inspect your machine carefully each day or shift by walking

around it before you start it to avoid personal injury.

In the walk-around inspection, be sure to cover all points

described in the “Inspect Machine Daily Before Starting”

section in the operator’s manual.

SA-435

SA-434

SAFETY

S-5

General Precautions for Cab

Before entering the cab, thoroughly remove all dirt and /

or oil from the soles of your work boots.

If any controls such as a pedal is operated while with dirt

and / or oil on the soles of the operator’s work boots the

operator’s foot may slip off the pedal, possibly resulting in

a personal accident.

Do not leave parts and / or tools lying around the

operator’s seat. Store them in their specified locations.

Avoid storing transparent bottles in the cab. Do not

attach any transparent type window decorations on

the windowpanes as they may focus sunlight, possibly

starting a fire.

Refrain from using music headphones or mobile

telephones in the cab while operating the machine.

Keep all flammable objects and / or explosives away from

the machine.

After using the ashtray, always cover it to extinguish the

match and / or tobacco.

Do not leave cigarette lighters in the cab. When the

temperature in the cab increases, the lighter may

explode.

Use proper floor mat dedicated to the machine.

If another floor mat is used, it may be displaced and

contact with the accelerator or brake pedals during

operation, resulting in serious injury or death.

Never weld, drill or in any way modify the ROPS without

approval from the manufacturer.

SAFETY

S-6

Use Handrails and Steps

Falling is one of the major causes of personal injury.

When you get on and off the machine, always face the

machine and maintain a three-point contact with the

steps and handrails.

Do not use any controls as handholds.

Never jump on or off the machine. Never mount or

dismount a moving machine.

Be careful of slippery conditions on platforms, steps, and

handrails when leaving the machine.

Never get on and off the machine with tools in your

hands.

Never Ride Attachment

Never allow anyone to ride attachment or the load. This is

an extremely dangerous practice.

Adjust Operator’s Seat

A poorly adjusted seat for either the operator or the

work at hand may quickly fatigue the operator leading to

misoperations.

The seat should be adjusted whenever changing the

operator for the machine.

The operator should be able to fully depress the pedals

and to correctly operate the control levers with his back

against the seat back.

If not, move the seat forward or backward, and check

again.

Adjust the rear view mirror position so that the best rear

visibility is obtained from the operator’s seat. If the mirror

is broken, immediately replace it with a new one.

SA-439

SA-462

SAFETY

S-7

Ensure Safety Before Rising from or Leaving

Operator’s Seat

Before rising from the operator’s seat to open / close either

side window or to adjust the seat position, be sure to first

lower the front attachment to the ground and then move

the control lever lock switch to the lock ( ) position. Failure

to do so may allow the machine to unexpectedly move

when a body part unintentionally comes in contact with a

control lever, possibly resulting in serious personal injury or

death.

Before leaving the machine, be sure to first lower the front

attachment to the ground and then move the control

lever lock switch to the lock ( ) position. Turn the parking

brake switch ON, and the key switch OFF to stop the

engine.

Before leaving the machine, close all windows, doors, and

access covers and lock them up.

Fasten Your Seat Belt

If the machine should overturn, the operator may become

injured and / or thrown from the cab. Additionally the

operator may be crushed by the overturning machine,

resulting in serious injury or death.

Prior to operating the machine, thoroughly examine

webbing, buckle and attaching hardware. If any item is

damaged or worn, replace the seat belt or component

before operating the machine.

Be sure to remain seated with the seat belt securely

fastened at all times when the machine is in operation to

minimize the chance of injury from an accident.

We recommend that the seat belt be replaced every three

years regardless of its apparent condition.

SA-237

SAFETY

S-8

Move and Operate Machine Safely

Bystanders can be run over.

Take extra care not to run over bystanders. Be advised

that there may be blind spots with rear view camera.

Confirm the location of bystanders before moving,

swinging, or operating the machine by sight and mirrors

as well as the rear view monitor.

Always keep the travel alarm and horn in working

condition (if equipped). It warns people when the

machine starts to move.

Use a signal person when moving, or operating the

machine in congested areas. Coordinate hand signals

before starting the machine.

Use appropriate illumination. Check that all lights are

operable before operating the machine. If any faulty

illumination is present, immediately repair it.

Ensure the cab door, windows, doors and covers are

securely locked.

Check the mirrors and the monitor in the CAB for

problems.

If there is, replace the problem part(s) or clean the mirror,

camera and the monitor.

Refer to Rear View Monitor section on the cleaning of the

camera and the monitor.

Handle Starting Aids Safely

Starting fluid:

Starting fluid is highly flammable.

Keep all sparks and flame away when using it.

Keep starting fluid well away from batteries and cables.

Remove container from machine if engine does not need

starting fluid.

To prevent accidental discharge when storing a

pressurized container, keep the cap on the container, and

store it in a cool, well-protected location.

Do not incinerate or puncture a starting fluid container. SA-293

SA-398

Hitachi ZW 310-6 User manual

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