Kubota M5660SUH User manual

English (U.S.A.)
Code No. 3C111-9971-2
M5660SUHD
M5660SUHMODELS
OPERATOR'S MANUAL
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© KUBOTA Corporation 2014
PRINTED IN JAPAN
READ AND SAVE THIS MANUAL

KUBOTA Corporation is ···
Since its inception in 1890, KUBOTA Corporation has grown to
rank as one of the major firms in Japan.
To achieve this status, the company has through the years
diversified the range of its products and services to a remarkable
extent. Nineteen plants and 16,000 employees produce over
1,000 different items, large and small.
All these products and all the services which accompany them,
however, are unified by one central commitment. KUBOTA makes
products which, taken on a national scale, are basic necessities.
Products which are indispensable. Products which are intended to help
individuals and nations fulfill the potential inherent in their
environment. KUBOTA is the Basic Necessities Giant.
This potential includes water supply, food from the soil and from
the sea, industrial development, architecture and construction,
and transportation.
Thousands of people depend on KUBOTA's know-how, technology,
experience and customer service. You too can depend on
KUBOTA.
M5660SUH/M5660SUHD (U.S.A.)
AT . E . 3 - 4 . 6 . AK
Abbreviations Definitions
ABBREVIATION LIST
2 Wheel Drive
4 Wheel Drive
American Petroleum Institute
American Society of Agricultural and Biological Engineers, USA
American Society for Testing and Materials, USA
Deutsches Institut für Normung, GERMANY
Dual Traction [4WD]
Feet Per Minute
Glide Shift Transmission
High Speed-Low Speed
Hydrostatic Transmission
Meters Per Second
Power Take Off
Right-hand and left-hand sides are determined by facing
in the direction of forward travel
Roll-Over Protective Structures
Revolutions Per Minute
Revolutions Per Second
Society of Automotive Engineers, USA
Slow Moving Vehicle
2WD
4WD
API
ASABE
ASTM
DIN
DT
fpm
GST
Hi-Lo
HST
m/s
PTO
RH/LH
ROPS
rpm
r/s
SAE
SMV
California Proposition 65
WARNING
Engine exhaust, some of its constituents,
certain vehicle components and fluids,
contain or emit chemicals known to the
State of California to cause cancer and birth
defects or other reproductive harm.

UNIVERSAL SYMBOLS
As a guide to the operation of your tractor, various universal symbols have been utilized on the instruments and
controls. The symbols are shown below with an indication of their meaning.
Safety Alert Symbol
Diesel Fuel
Engine-Rotational Speed
Hourmeter/Elapsed
Operating Hours
Engine
Coolant-Temperature
Diesel Preheat/Glow
Plugs(Low Temperature
Start Aid)
Parking Brake
Engine Intake/Combustion
Air-Filter
Battery Charging Condition
Engine Oil-Pressure
Turn Signal
Electrical
Power-accessories
Engine-Run
Engine-Start
Engine-Stop
Power Take-Off Clutch
Control-Off (Disengaged)
Position
Power Take-Off Clutch
Control-On (Engaged) Position
Bi-Speed turn
Differential Lock
Position Control-Raised
Position
Position Control-Lowered
Position
Engine Warning
Emission Control
Draft Control-Shallow
Position
Draft Control-Deep Position
3-Point Lowering Speed
Control
Remote Cylinder-Retract
Remote Cylinder-Extend
Hazard Warning Lights
Headlight-Low Beam
Headlight-High Beam
4-Wheel Drive-On
4-Wheel Drive-Off
Front-Wheel Drive-On
Fast
Slow
Creep
Windshield Wiper
Windshield Wiper
Intermittent
Windshield Washer
Lock
Rear Window Defroster
Steering Wheel-Tilt Control
Empty
Full
PTO 540 rpm
PTO 1000 rpm
Regeneration
DPF INHIBIT (Switch)
Regeneration (Switch)
Parked Regeneration
Engine RPM Increase
Rev-limiter Control
Constant RPM Management

FOREWORD
3
SAFETY FIRST
IMPORTANT :
NOTE :
3DANGER :
3WARNING :
3CAUTION :
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious 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, could result in minor or moderate injury.
Indicates that equipment or property damage could result if
instructions are not followed.
Gives helpful information.
You are now the proud owner of a KUBOTA Tractor. This tractor is a product of
KUBOTA quality engineering and manufacturing. It is made of fine materials and
under a rigid quality control system. It will give you long, satisfactory service. To
obtain the best use of your tractor, please read this manual carefully. It will help you
become familiar with the operation of the tractor and contains many helpful hints
about tractor maintenance. It is KUBOTA's policy to utilize as quickly as possible
every advance in our research. The immediate use of new techniques in the
manufacture of products may cause some small parts of this manual to be
outdated. KUBOTA distributors and dealers will have the most up-to-date
information. Please do not hesitate to consult with them.
This symbol, the industry's ''Safety Alert Symbol'', is used throughout this manual
and on labels on the machine itself to warn of the possibility of personal injury.
Read these instructions carefully. It is essential that you read the instructions and
safety regulations before you attempt to assemble or use this unit.

CONTENTS
SAFE OPERATION ............................................................................................ -1
SERVICING OF TRACTOR......................................................................................... 1
SPECIFICATIONS....................................................................................................... 3
SPECIFICATION TABLE ......................................................................................... 3
TRAVELING SPEEDS ............................................................................................. 5
IMPLEMENT LIMITATIONS ........................................................................................ 6
INSTRUMENT PANEL AND CONTROLS................................................................... 8
PRE-OPERATION CHECK ....................................................................................... 11
DAILY CHECK ....................................................................................................... 11
OPERATING THE ENGINE....................................................................................... 12
EXHAUST AFTERTREATMENT DEVICES........................................................... 12
Diesel Particulate Filter (DPF) Muffler ............................................................................12
Handling Points............................................................................................................... 13
DPF Regeneration Process ............................................................................................ 13
Regeneration Operating Procedure................................................................................ 14
PM Warning Level and Required Procedures ................................................................ 15
Regeneration Operating Procedure................................................................................ 16
PM Warning Level and Required Procedures ................................................................ 17
Tips on Diesel Particulate Filter (DPF) Regeneration.....................................................19
STARTING THE ENGINE ...................................................................................... 19
COLD WEATHER STARTING ............................................................................... 22
Block Heater (if equipped) .............................................................................................. 22
STOPPING THE ENGINE...................................................................................... 22
WARMING UP ....................................................................................................... 22
Warm-up and Transmission Oil at Low Temperature Range .........................................22
JUMP STARTING .................................................................................................. 23
OPERATING THE TRACTOR ................................................................................... 24
OPERATING NEW TRACTOR .............................................................................. 24
Do not Operate the Tractor at Full Speed for the First 50 Hours....................................24
Changing Lubricating Oil for New Tractors.....................................................................24
BOARDING AND LEAVING THE TRACTOR ........................................................ 24
OPERATING FOLDABLE ROPS ........................................................................... 24
To Fold the ROPS ..........................................................................................................24
To Raise the ROPS to Upright Position.......................................................................... 25
Adjustment of Foldable ROPS........................................................................................26
STARTING ............................................................................................................. 26
Operator's Seat............................................................................................................... 26
Seat Belt ......................................................................................................................... 27
Light Switch ....................................................................................................................27
Turn Signal / Hazard Light Switch ..................................................................................27
Brake Pedals (Right and Left).........................................................................................28
Clutch Pedal ...................................................................................................................29
Main Gear Shift Lever.....................................................................................................30

CONTENTS
Range Gear Shift Lever..................................................................................................30
Hydraulic-Shuttle Shift Lever .......................................................................................... 31
Front Wheel Drive Lever................................................................................................. 31
Hand Throttle Lever ........................................................................................................ 32
Foot Throttle ...................................................................................................................32
Parking Brake ................................................................................................................. 32
STOPPING............................................................................................................. 32
Stopping.......................................................................................................................... 32
CHECK DURING DRIVING ................................................................................... 32
Immediately Stop the Engine if:...................................................................................... 32
Easy Checker(TM).......................................................................................................... 32
Fuel Gauge.....................................................................................................................33
Coolant Temperature Gauge .......................................................................................... 34
Tachometer.....................................................................................................................34
LCD MONITOR ...................................................................................................... 35
Changing Display Mode.................................................................................................. 35
PTO Speed Display Mode Switching..............................................................................37
ELECTRONIC ENGINE CONTROL....................................................................... 38
Constant RPM Management Control..............................................................................38
PARKING ............................................................................................................... 38
Parking............................................................................................................................ 38
OPERATING TECHNIQUES ................................................................................. 39
Differential Lock..............................................................................................................39
Operating the Tractor on a Road.................................................................................... 39
Operating on Slopes and Rough Terrain ........................................................................40
Transport the Tractor Safely...........................................................................................40
Directions for Use of Power Steering..............................................................................40
Electrical Outlet...............................................................................................................40
PTO ........................................................................................................................... 41
PTO OPERATION.................................................................................................. 41
PTO Clutch Control Lever...............................................................................................41
PTO Gear Shift Lever .....................................................................................................42
PTO Speed Limiter ......................................................................................................... 42
LCD Monitor Message .................................................................................................... 43
PTO Shaft Cover and Shaft Cap ....................................................................................43
3-POINT HITCH & DRAWBAR.................................................................................. 44
3-POINT HITCH ..................................................................................................... 45
Category 1 & 2................................................................................................................45
Selecting the holes of Lower Links ................................................................................. 45
Selecting the Top Link Mounting Holes .......................................................................... 45
Drawbar .......................................................................................................................... 45
Lifting Rod (Right)........................................................................................................... 46
Top Link.......................................................................................................................... 46
Telescopic Stabilizers ..................................................................................................... 47
Telescopic Lower Links ..................................................................................................47
DRAWBAR............................................................................................................. 47
Swing Drawbar ............................................................................................................... 47
HYDRAULIC UNIT..................................................................................................... 48
3-POINT HITCH CONTROL SYSTEM................................................................... 48
Position Control .............................................................................................................. 48

CONTENTS
Float Control ...................................................................................................................48
3-point Hitch Lowering Speed.........................................................................................48
REMOTE HYDRAULIC CONTROL SYSTEM........................................................ 49
Remote Control Valve..................................................................................................... 49
Remote Control Valve Lever........................................................................................... 49
Remote Control Valve Coupler Connecting and Disconnecting .....................................50
Hydraulic Control Unit Use Reference Chart..................................................................51
TIRES, WHEELS AND BALLAST.............................................................................. 52
TIRES..................................................................................................................... 52
Inflation Pressure............................................................................................................ 52
Dual Tires ....................................................................................................................... 52
WHEEL ADJUSTMENT ......................................................................................... 52
Front Wheels (with 2-wheel drive) .................................................................................. 53
Front Wheels (with 4-wheel drive) .................................................................................. 54
Rear Wheels ................................................................................................................... 56
BALLAST ............................................................................................................... 57
Front Ballast.................................................................................................................... 57
Rear Ballast ....................................................................................................................58
MAINTENANCE......................................................................................................... 59
SERVICE INTERVALS .......................................................................................... 59
LUBRICANTS, FUEL AND COOLANT .................................................................. 62
PERIODIC SERVICE................................................................................................. 64
HOW TO OPEN THE HOOD ................................................................................. 64
Hood ............................................................................................................................... 64
DAILY CHECK ....................................................................................................... 64
Walk Around Inspection.................................................................................................. 64
Checking and Refueling.................................................................................................. 65
Checking Water Separator .............................................................................................65
Checking Engine Oil Level.............................................................................................. 66
Checking Transmission Fluid Level................................................................................66
Checking Coolant Level.................................................................................................. 67
Cleaning Evacuator Valve ..............................................................................................67
Cleaning Grill, Radiator Screen, Oil Cooler and Battery Mount...................................... 67
Checking DPF Muffler..................................................................................................... 68
Checking Brake Pedal .................................................................................................... 68
Checking Gauges, Meter and Easy Checker(TM) ..........................................................68
Checking Head Light, Turn Signal / Hazard Light etc.....................................................68
Checking Seat Belt and ROPS....................................................................................... 68
Checking Movable Parts................................................................................................. 68
INITIAL 50 HOURS ................................................................................................ 68
Checking Engine Oil ....................................................................................................... 68
Replacing Engine Filter................................................................................................... 68
EVERY 50 HOURS ................................................................................................ 69
Checking Engine Start System ....................................................................................... 69
Checking Wheel Bolt Torque..........................................................................................69
Checking Tie-rod Dust Cover ......................................................................................... 70
EVERY 100 HOURS .............................................................................................. 70
Lubricating Grease Fittings.............................................................................................70
Cleaning Air Cleaner Primary Element ........................................................................... 71
Adjusting Fan Belt Tension.............................................................................................72

CONTENTS
Adjusting Brake Pedal .................................................................................................... 72
Checking Battery Condition ............................................................................................ 73
EVERY 200 HOURS .............................................................................................. 74
Checking Oil Separator Hose ......................................................................................... 74
Adjusting Toe-in.............................................................................................................. 74
Draining Fuel Tank Water...............................................................................................75
EVERY 400 HOURS .............................................................................................. 76
Changing Engine Oil.......................................................................................................76
Replacing Engine Oil Filter .............................................................................................77
Replacing Hydraulic Oil Filter ......................................................................................... 77
Replacing Fuel Filter....................................................................................................... 78
Cleaning Water Separator .............................................................................................. 79
Lubricating Grease Fitting [2WD Model].........................................................................79
EVERY 500 HOURS .............................................................................................. 80
Replacing Power Steering Line ......................................................................................80
Checking Radiator Hose and Clamp .............................................................................. 80
Checking Fuel Line.........................................................................................................81
Checking Intake Air Line.................................................................................................81
EVERY 600 HOURS .............................................................................................. 82
Adjusting Front Axle Pivot............................................................................................... 82
EVERY 800 HOURS .............................................................................................. 82
Changing Transmission Fluid ......................................................................................... 82
Changing Front Axle Gear Case Oil & Front Differential Case Oil .................................83
Adjusting Engine Valve Clearance ................................................................................. 83
EVERY 1000 HOURS or 1 YEAR .......................................................................... 83
Replacing Air Cleaner Primary Element and Secondary Element.................................. 83
Checking Exhaust Manifold ............................................................................................ 83
EVERY 1500 HOURS ............................................................................................ 83
Cleaning Fuel Injector Nozzle Tip...................................................................................83
Replacing Oil Separator Element ...................................................................................83
Checking and Cleaning EGR Cooler ..............................................................................84
EVERY 2000 HOURS or 2 YEARS........................................................................ 84
Flushing Cooling System and Changing Coolant ...........................................................84
Anti-Freeze .....................................................................................................................85
EVERY 3000 HOURS ............................................................................................ 85
Checking Turbocharger .................................................................................................. 85
Checking Supply Pump .................................................................................................. 85
Checking and Cleaning EGR System.............................................................................85
Cleaning DPF Muffler .....................................................................................................85
EVERY 1 YEAR ..................................................................................................... 86
Checking DPF Related Pipe ...........................................................................................86
Checking EGR Pipe........................................................................................................ 86
EVERY 2 YEARS................................................................................................... 86
Replacing Oil Separator Related Rubber Pipe ...............................................................86
Replacing DPF Related Rubber Pipe .............................................................................86
Replacing EGR Cooler Rubber Pipe ..............................................................................86
Replacing Boost Sensor Hose........................................................................................86
EVERY 4 YEARS................................................................................................... 86
Replacing Radiator Hose (Water pipes) ......................................................................... 86
Replacing Fuel Hose ...................................................................................................... 86
Replacing Intake Air Line................................................................................................86

CONTENTS
Replacing Power Steering Hose.....................................................................................86
SERVICE AS REQUIRED...................................................................................... 86
Bleeding Fuel System.....................................................................................................86
Draining Clutch Housing Water ......................................................................................87
Replacing Fuse............................................................................................................... 87
Replacing Slow-Blow Fuses ........................................................................................... 88
Replacing Light Bulb....................................................................................................... 88
Replacing Head Lamp .................................................................................................... 89
STORAGE ................................................................................................................. 90
TRACTOR STORAGE ........................................................................................... 90
REMOVING THE TRACTOR FROM STORAGE................................................... 90
TROUBLESHOOTING............................................................................................... 91
ENGINE TROUBLESHOOTING ............................................................................ 91
POWER TRAIN TROUBLE SHOOTING................................................................ 92
OPTIONS................................................................................................................... 93
APPENDICES............................................................................................................ 94
INDEX .................................................................................................................... 94