Iseki TG6400 Operator's Manual
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Iseki TG6400 Operator's Manual

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I S E K I
O p e r a t o r ' s
TG6370
TG6400
TG6490
T R A C T O R S
MODELS:
TG6620
TG6670
M a n u a l
ENGLISH

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Summary of Contents for Iseki TG6400

  • Page 1 I S E K I T R A C T O R S O p e r a t o r ’ s M a n u a l MODELS: TG6370 TG6620 TG6400 TG6670 TG6490 ENGLISH...

  • Page 2: To Our Customer

    TO OUR CUSTOMER TO OUR CUSTOMER Thank you for purchasing an ISEKI tractor. This operator’s manual provides the information necessary for operating and maintaining your tractor safely and properly. The contents are mainly composed of the following 2 items: Safety instructions: Essential items which you should observe while operating the tractor.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS TO OUR CUSTOMER ..........1 OPERATION ............30 INSTRUMENT PANEL ......... 34 TABLE OF CONTENTS ..........3 Main Switch ............34 Indicator Light Array ......... 35 SAFETY ..............6 Tachometer ............36 MACHINE PURPOSE ..........6 Liquid Crystal Display ........
  • Page 5 TG6370, 6400, 6490, 6620, 6670 TRAVELING SPEED SELECTION COMFORT ADJUSTMENTS ........ 83 (HST TYPE) ............52 Steering Column Tilt ......... 83 Engine Speed Control ........52 Tool Box............83 Forward / Reverse Lever ........52 SEAT & SUSPENSION ADJUSTMENT ....84 Shift Lever ............
  • Page 6 WASHING OF THE MACHINE ......130 Grease Fittings ..........105 MAJOR CONSUMABLES LIST ......131 Engine Oil & Filter (TG6370 / 6400 / 6490) ..105 ROPS Type ............ 131 Engine Oil & Filter (TG6620 / 6670) ....106 CABIN Type ............ 133 Transmission Oil &...

  • Page 7: Safety

    TG6370, 6400, 6490, 6620, 6670 SAFETY MACHINE PURPOSE This machine is designed solely for use in customary agricultural and forestry use, for parks and grounds maintenance, as well as for winter service. Use in any other way is considered as contrary to the intended use. Compliance with and strict adherence to the conditions of operation, service, and repair as specified by the manufacturer, also constitute essential elements of the intended use.

  • Page 8: Making Your Tractor A Safe Vehicle

    SAFETY MAKING YOUR TRACTOR A SAFE VEHICLE How to Maintain Safety (1) Never attempt to do the following: • Modification of the structure of the tractor • Installation of other type of engine • Installation of tires of other than the original tire size.

  • Page 9: For Safe Operation

    TG6370, 6400, 6490, 6620, 6670 FOR SAFE OPERATION How to be a Safe Operator (1) Familiarize yourself fully with machine controls by studying the operator’s manual before using your machine. This operator’s manual should be regarded as part of the machine. Suppliers of both new and...

  • Page 10: Before Operation

    FIG. 6 If safety devices are damaged or do not work, please consult your ISEKI dealer. (3) Before removing a safety devices, such as a safety cover, be sure that the machine has stopped completely. Never forget to replace the removed part after servicing.

  • Page 11: Starting Engine And Operating Tractor

    TG6370, 6400, 6490, 6620, 6670 Starting Engine and Operating Tractor (1) Before starting the engine indoors, make sure that there is proper ventilation because exhaust fumes contain poisonous carbon monoxide, which cause lethal poisoning. (2) Before starting the machine, confirm that the...
  • Page 12 SAFETY (2) When traveling in a hill, drive the tractor carefully. • When climbing up a hill, shift the speed change lever to the most suitable speed. Start moving the tractor as slowly as possible. • While climbing up a hill, never shift speeds along the way.

  • Page 13: Loading Onto Or Unloading From A Truck

    (7) Use ramps with the same or better specifications mentioned below. When the machine is equipped with attachments, consult your ISEKI dealer for advice. Specifications of the Ramps • Length..more than 4 times the height of the plat- form of the truck •...

  • Page 14: During Operation

    (e.g. snapping of winch cable). Falling Objects Protective Structure (FOPS) and Operators Protection Structure (OPS) are not standard equipment. When using FOPS or OPS, consult your ISEKI dealer concerning the fixation points on tractor for the FOPS or OPS. FIG. 21...

  • Page 15: Inspection And Maintenance

    Be sure to consult your ISEKI dealer about the hydraulic and fuel injection system trouble. When checking for leaks, use a piece of card- board or wood without fail.

  • Page 16: Storage

    Do not attempt to service a tire unless you have the proper equipment and experience to perform the job. Have the work carried out by your ISEKI dealer or a qualified repair service. When seating tire beads onto rims, never exceed the maximum inflation specifications specified on the tire.

  • Page 17: Maintenance Of The Electric System

    TG6370, 6400, 6490, 6620, 6670 MAINTENANCE OF THE ELECTRIC SYSTEM To Maintain Electric Wiring (1) When servicing the electric wiring, stop the engine without fail. Otherwise your hands or clothes may be caught in rotating parts. (2) Before manipulating electric parts, be sure to dis-...

  • Page 18: To Handle Booster Cables

    SAFETY (4) When disconnecting the battery cables, discon- nect the negative cable (-) first without fail. When connecting the battery cables, connect the posi- tive cable (+) first. Disconnecting or connecting in wrong order may lead to a short circuit or sparks. FIG.

  • Page 19: Safety Decals

    TG6370, 6400, 6490, 6620, 6670 SAFETY DECALS (5) Ether label (Code No.1674-904-002-1) (1) Fan warning label (Code No. 1705-902-006-0) WARNING: RISK OF EXPLOSION WARNING: RISK OF ENTANGLEMENT Ether or other starting fluid should never be used Stay clear of the fan while it is running.
  • Page 20 SAFETY (8) Radiator label E. WARNING: RISK OF EXPLOSION (Code No.1705-902-008-0) Never use the battery with the electrolyte surface below the “LOWER” limit, or it may explode. Never replenish exceeding “UPPER” limit or elec- trolyte may leak out. Maintenance free battery does not need to re- plenish distilled water.
  • Page 21 TG6370, 6400, 6490, 6620, 6670 A. WARNING: BEFORE OPERATION (14-1) Reverse label (Standard type) Read the safety and operating instructions in the (Code No.1815-902-005-0) operator’s manual before operating the tractor. B. WARNING: MAINTENANCE Do not service the tractor while the engine is run- ning or hot, or while the tractor is in motion.

  • Page 22: Maintenance Of Safety Decals

    • When they have become dirty, wash them with soapy water and wipe off with soft cloth. • If any of them are torn or lost, order new labels from your ISEKI dealer. Their codes are mentioned in WARNING: RISK OF INJURY “SAFETY DECALS AND THEIR LOCATION”.

  • Page 23: Location Of Safety Decals

    TG6370, 6400, 6490, 6620, 6670 Location of Safety Decals (17) 1728-903-003-0 (2) 1636-901-022-0 (5) 1674-904-002-1 (8) 1705-902-008-0 (9) 1815-904-001-1 (1) 1705-902-006-0 (1) 1705-902-006-0 (3) 1674-904-008-0 (3) 1674-904-008-0 (4) 8595-901-007-0 (10) 1705-902-007-0 (12) 1705-904-001-0 (13) 1728-903-002-0 (15) 1674-904-005-1 (Center ROPS) (11) 1674-904-001-0...
  • Page 24 SAFETY (ONLY CABIN TYPE) (11) 1746-902-051-0 (14-1) 1815-902-005-0 (Standard type) (16) 1815-904-002-0 (14-2) 1815-902-006-0 (HST type) (14-3) 1815-902-032-0 (Dual clutch type) Location of all instruction decals provided as a reference. Replace any decals that are damaged, missing or are not readable.

  • Page 25: Introduction

    TG6370, 6400, 6490, 6620, 6670 INTRODUCTION The information in this publication describes the operation, maintenance and servicing of the TG6370, 6400, 6490, 6620, 6670 tractors. Every effort has been made to provide correct and concise information to you, the operator, as available at date of book publication.

  • Page 26: Tractor Identification

    8 1 0 - 9 5 0 1 5 0 0 2 0 0 0 3 5 0 0 5 0 0 0 FIG. 28 FIG. 27 MODEL TYPE DESIGNATION TG6370 D W J Engine Symbol Horsepower TG6370 26.6 kW TG6400 28.7 kW...

  • Page 27: Model / Serial Number

    FIG. 31 FIG. 32: (TG6370 / 6400 / 6490) Engine model num- ber, 4, is cast on right side of engine block, below the TG6620 / 6670 TG6370 / 6400 / 6490 injection pump.

  • Page 28: Major Components

    MAJOR COMPONENTS MAJOR COMPONENTS Rear ROPS Type FIG. 33 FIG. 33: Identification and terminology of major components, as given in this operator’s manual, are as follows: Front Wheels 16. Front Hitch Fuel Tank Filler 17. Engine Check Chain 18. Foot Step Lift Rod 19.

  • Page 29: Center Rops Type

    TG6370, 6400, 6490, 6620, 6670 Center ROPS Type FIG. 34 FIG. 34: Identification and terminology of major components, as given in this operator’s manual, are as follows: Front Wheels 16. Front Bumper Fuel Tank Filler 17. Engine Check Chain 18. Foot Step Lift Rod 19.

  • Page 30: Cabin Type

    MAJOR COMPONENTS CABIN Type FIG. 35 FIG. 35: Identification and terminology of major components, as given in this operator’s manual, are as follows: Front Wheels 16. Front Hitch Fuel Tank Filler 17. Engine Check Chain 18. Foot Step Lift Rod 19.

  • Page 31: Operation

    TG6370, 6400, 6490, 6620, 6670 OPERATION Standard Type ５ ３ ７ FIG. 36 FIG. 36: General layout and location of controls within operator’s area on tractor. Specific use of these controls is given later in this section and also in “Operation” section of this operator’s manual: Steering Wheel 13.
  • Page 32 OPERATION HST Type (TG6400 / 6490) ３ FIG. 37 FIG. 37: General layout and location of controls within operator’s area on tractor. Specific use of these controls is given later in this section and also in “Operation” section of this operator’s manual: Steering Wheel 12.
  • Page 33 TG6370, 6400, 6490, 6620, 6670 HST Type (TG6620 / 6670) ３ FIG. 38 FIG. 38: General layout and location of controls within operator’s area on tractor. Specific use of these controls is given later in this section and also in “Operation” section of this operator’s manual: 12.
  • Page 34 OPERATION Dual Clutch Type ５ ３ ７ FIG. 39 FIG. 39: General layout and location of controls within operator’s area on tractor. Specific use of these controls is given later in this section and also in “Operation” section of this operator’s manual: Steering Wheel 13.

  • Page 35: Instrument Panel

    TG6370, 6400, 6490, 6620, 6670 INSTRUMENT PANEL FIG. 40: Arrangement of gauges. Control switches and indicators located in instrument panel. Items are as follows: 1. Main Switch 2. Indicator Light Array 3. Tachometer 4. Liquid Crystal Display 5. Display Mode Switch 6.

  • Page 36: Indicator Light Array

    OPERATION Indicator Light Array FIG. 42: Bottom indicator light array, 1, and right-hand indicator light array, 2, contain several indicator lamps to monitor certain functions. The lamps on the bottom indicator light array, 1, are as follows: • Pre-heat Lamp - Illuminates after the switch is selected to the GLOW position for a maximum of 30 seconds.

  • Page 37: Tachometer

    TG6370, 6400, 6490, 6620, 6670 Tachometer FIG. 43: Tachometer, 1, indicates engine speed in crank shaft revolutions per minute (min-1). Index is also provided to show rear PTO speed of 540 at ap- proximately 2,400 - 2,500 engine revolution speed.

  • Page 38: Coolant Temperature Gauge

    OPERATION Coolant Temperature Gauge FIG. 46: Coolant temperature gauge, 1, uses a bar graph to indicate engine coolant temperature. • (A) “C” - Shows too cool of a temperature for se- vere work. Let the engine warm up (bar graph in mid position) before applying a heavy load.

  • Page 39: Display Select Switch

    TG6370, 6400, 6490, 6620, 6670 Display Select Switch FIG. 49: Liquid crystal display shows the traveling speed, rear PTO speed or Mid-PTO speed. To change the displays, push the display select switch, 1. (1) Traveling Speed (HST and dual clutch types only)

  • Page 40: Fault Code Indication

    OPERATION Fault Code Indication FIG. 53: Liquid crystal display shows the fault code for vehicle ECU when vehicle ECU detects an abnormal- ity. Fault code is composed 2 codes, 1 and 2. (1) Suspect Parameter Number (SPN) - system code for fault NOTE : Suspect Parameter Number (SPN) for ve- hicle ECU is composed of 4 figures.

  • Page 41: Horn Switch & Lamp Switches

    TG6370, 6400, 6490, 6620, 6670 Horn Switch & Lamp Switches FIG. 56: Horn, 1, will sound when center switch of the steering wheel is depressed. FIG. 57:Direction indicator lamp control lever, 2, is equipped with a rotary switch. It has 3 operating positions: •...

  • Page 42: Emergency Engine Stop Switch (Hst Type Only)

    OPERATION Emergency Engine Stop Switch (HST Type Only) FIG. 60: To stop the engine and tractor in case of emergency, push the emergency engine stop switch, 1. CAUTION: For your safety, depress the brake pedal and decrease the speed of tractor enough before pushing this switch.

  • Page 43: Parking Brake Lever

    TG6370, 6400, 6490, 6620, 6670 Parking Brake Lever WARNING: ALWAYS apply the parking brake before leaving from the tractor. FIGS. 63, 64 & 65: The parking brake is applied on Standard & HST Types the tractor rear wheels. To engage the brake, pull up- ward the parking brake lever, 4.

  • Page 44: Break-In Period

    OPERATION BREAK-IN PERIOD STARTING Operation of tractor within the first 50 hours can be a Pre-Start Inspection major factor in determining the performance and life of Prior to daily operation of tractor, a few basic proce- the engine and tractor: dures should be followed to ensure tractor is in oper- ating order to insure life and dependability: •...

  • Page 45: Normal Starting (Standard Type)

    TG6370, 6400, 6490, 6620, 6670 Normal Starting (Standard Type) CAUTION: Do not attempt to start the trac- tor unless seated in the operator’s seat. ３ Do not allow anyone on the tractor except for the operator. FIGS. 66 & 67: To start the engine, proceed as follows: Make sure latch the brake pedals, 1, and apply parking brake, 2.

  • Page 46: Normal Starting (Hst Type)

    OPERATION Normal Starting (HST Type) CAUTION: Do not attempt to start the trac- tor unless seated in the operator’s seat. Do not allow anyone on the tractor except ３ for the operator. FIGS. 69 & 70: To start the engine, proceed as follows: Make sure latch the brake pedals, 1, and apply parking brake, 2.

  • Page 47: Normal Starting (Dual Clutch Type)

    TG6370, 6400, 6490, 6620, 6670 Normal Starting (Dual Clutch Type) CAUTION: Do not attempt to start the trac- tor unless seated in the operator’s seat. ３ Do not allow anyone on the tractor except for the operator. FIGS. 72 & 73: To start the engine, proceed as follows: Make sure latch the brake pedals, 1, and apply parking brake, 2.

  • Page 48: Restarting Warm Engine

    (-) terminal. And connect it to ground (TG6370 / 6400 /6490) of the tractor or negative (-) terminal of At temperatures below 4 °C (39 °F) use of No. 1 (No. the original battery. Finally make sure...

  • Page 49: Operator Observations

    TG6370, 6400, 6490, 6620, 6670 Operator Observations Starting Circuit For The Engine Tractor is equipped with a safety starting system to Constant attention should be paid to the following protect the operator. To permit tractor to be started points during operation: (start motor to operate), ALL the following is required: •...

  • Page 50: Traveling Speed Selection (Standard Type)

    OPERATION TRAVELING SPEED SELECTION (STANDARD TYPE) Standard type tractor is equipped to provide 12 for- ward gear speeds and 12 reverse gear speeds. Engine Speed Control FIG. 75: Hand throttle lever, 1, controls engine speed and will remain in position selected by the operator. With hand lever forward, engine will idle.

  • Page 51: Shift Levers

    TG6370, 6400, 6490, 6620, 6670 Shift Levers FIG. 77: Gear shift lever, 4, provides 4 gear selections. These gear selections are compounded by range shift lever, 5. The range shift lever provides 3 major changes in traveling speed. Gear shift lever provides smaller changes traveling speed.
  • Page 52 TG6370 TG6490 Engine Speed 2,600 min-1 NOTE: Traveling speed indicated at 2,600 engine Range Gear km / h min-1 speed with TG6370 - 13.6 - 24, Forward TG6490 - 13.6 - 28 agricultural type rear tires. 11.4 10.6 17.8 16.6 28.1...

  • Page 53: Traveling Speed Selection (Hst Type)

    TG6370, 6400, 6490, 6620, 6670 TRAVELING SPEED SELECTION (HST TYPE) TG6400 HST type tractor is equipped 3 range gear speeds. TG6490 / 6620 /6670 HST type tractor is equipped 6 range gear speeds. Engine Speed Control FIGS. 79 & 80: Hand throttle lever, 1, controls engine...

  • Page 54: Shift Lever

    OPERATION Shift Lever FIG. 82: The hydrostatic transmission provides vari- able speed control in forward or reverse. Range shift lever, 3, provide 3 major changes in trav- eling speed. IMPORTANT: Stop tractor completely whenever shifting the range shift lever, 3. HST Pedal FIG.

  • Page 55: Cruise Control

    TG6370, 6400, 6490, 6620, 6670 Cruise Control FIG. 84.: Cruise control switch, 5, keeps the speed of tractor even if HST pedal is released. When the switch is pressed during forward travel, the cruise control lamp in the indicator light array illumi- nates and traveling speed is set.

  • Page 56: Speed Adjustment

    OPERATION Speed Adjustment FIG. 85: When turning maximum speed control dial, 7, completely clockwise, the maximum speed of tractor is set at peak with HST pedal fully depressed. In case of turning the dial in anti-clockwise direction, the setting of maximum speed can be reduced. When turning the response control dial, 8, completely clockwise, quicker response to the acceleration of tractor is gained in accordance with depressing HST...

  • Page 57: Traveling Speed Selection (Dual Clutch Type)

    TG6370, 6400, 6490, 6620, 6670 TRAVELING SPEED SELECTION (DUAL CLUTCH TYPE) Dual clutch type tractor is equipped 24 forward gear speeds and 24 reverse gear speeds. Engine Speed Control FIG. 87: Hand throttle lever, 1, controls engine speed and will remain in position selected by the operator.

  • Page 58: Shift Levers

    OPERATION Shift Levers FIG. 89: Gear shift lever (main change lever), 4, pro- vides 8 gear selections. This lever provides smaller traveling speed change. Gear shift lever (sub-change lever), 5, provides 3 gear selections. This lever provides 3 major change in trav- eling speeds.
  • Page 59 TG6370 TG6490 Range Gear km / h NOTE: Traveling speed indicated at 2,600 engine Engine Speed 2,600 min-1 min-1 speed with TG6370 - 13.6 - 24, Forward TG6490 - 13.6 - 28 agricultural type rear tires. 10.3 11.1 12.1 13.3 14.5...

  • Page 60: Stopping Tractor (Standard Type)

    OPERATION STOPPING TRACTOR (STANDARD TYPE) FIGS. 91 & 92: To stop the tractor, move the throttle lever, 1, forward, to reduce engine speed and slow travel. Depress the clutch pedal, 2, and brake pedal, 3 and 4, to stop. Put the range shift lever, 5, and gear shift lever, 6, and forward / reverse shift, 7, in neutral position.

  • Page 61: Stopping Tractor (Hst Type)

    TG6370, 6400, 6490, 6620, 6670 STOPPING TRACTOR (HST TYPE) FIGS. 94 & 95: To stop the tractor, decrease its speed by releasing the HST pedal. Move the throttle lever, 1, forward to reduce the engine revolution, and then put the range shift lever, 2, and forward / reverse lever, 3, in neutral position.

  • Page 62: Stopping Tractor (Dual Clutch Type)

    OPERATION STOPPING TRACTOR (DUAL CLUTCH TYPE) FIGS. 97 & 98: To stop the tractor, move the throttle lever, 1, forward, to reduce engine speed and slow travel. Depress the clutch pedal, 2, and brake pedal, 3 and 4, to stop. Put the range shift lever, 5, and gear shift lever, 6, and forward / reverse shift, 7, in neutral position.

  • Page 63: Differential Lock

    TG6370, 6400, 6490, 6620, 6670 DIFFERENTIAL LOCK FIG. 100: When differential lock pedal, 1, is de- Standard & HST Type pressed, both sides of the rear axle are locked to Dual Clutch gather so the rear wheels turns together at the same Types speed.

  • Page 64: Power Take-Off (Pto)

    Protective cover shall be installed when it is not in use. PTO shaft rotating speed: (TG6370 / 6400 / 6490 - Standard & HST Types) 2 operating speeds of rear PTO are available. 540 min-1 @ 2,430 engine revolution speed...

  • Page 65: Mid Pto Shaft

    TG6370, 6400, 6490, 6620, 6670 FIG. 104: Implement driveshaft shown connected to tractor rear PTO shaft. CAUTION: Make sure all PTO shields are installed on tractor and equipment. Before cleaning or adjusting tractor or PTO driven machine, stop the engine, and DISENGAGE PTO.

  • Page 66: Pto Switch & Pto Selectable Switch

    OPERATION PTO Switch & PTO Selectable Switch FIG. 106: PTO switch, 1, is used to engage and dis- Standard & HST type Dual clutch type engage the PTO clutch. To engage the PTO clutch, turn the PTO switch clock- wise with pushing down the knob. When engaged, the PTO indicator lamp in the indicator light array will illuminate.

  • Page 67: Rear Pto Selector Lever

    TG6370, 6400, 6490, 6620, 6670 Rear PTO Selector Lever (Standard &HST Types) FIG. 107: Rear PTO selector lever, 1, provides 2 Standard &HST Types speed of rear PTO. When lever is moved to center position, 2, 540 min-1 PTO is selected. When lever is forward, 3, 750 min-1 PTO is selected.

  • Page 68: Rear Pto Operating Control

    OPERATION (Dual Clutch Type) FIG. 110: Mid PTO selector lever, 1, provides the mid Dual Clutch Type PTO selection. When lever is forward, 2, the mid PTO is operated. When lever is returned to rearward, 3, the mid PTO is not rotate.

  • Page 69: 3-Point Linkage

    TG6370, 6400, 6490, 6620, 6670 3-POINT LINKAGE 3-point linkage combines tractor and implement into 1 working unit. Implement position is controlled hydraulically. Position Control (Standard & HST Types) FIG. 111: 3-Point Linkage Position Control Lever - 3-point linkage position control lever, 1, controls the linkage height.

  • Page 70: Position Control (Dual Clutch Type)

    OPERATION CAUTION: When working on or around equipped implements, always lower them to ground prior to work. If an implement must be raised, always lock the lowering rate knob, and support the implement and lower links securely. CAUTION: Always disengage the PTO clutch and stop the tractor engine before servicing any PTO-driven implement.
  • Page 71 TG6370, 6400, 6490, 6620, 6670 FIGS. 114 & 115: Up-Stop Switch - Up-stop is the system that PTO shaft rotation is stopped when imple- ment is raised. It prevents mud splash and protect the drive line PTO. CAUTION: At the time of blinking up-stop...

  • Page 72: 3-Point Linkage

    OPERATION FIG. 116: Lowering rate control knob, 5, adjusts the speed of drop of 3-point linkage and implement. Turn the knob clockwise to slow the drop speed, and turn the knob counterclockwise to increase the drop speed (quick down the implement). Turning the knob fully clockwise to lock the implement in the raised position.
  • Page 73 TG6370, 6400, 6490, 6620, 6670 FIG. 118: To equip various implements, rear linkage is standardized according to spacing, pin size, etc. This enables usage of alternate implements with minimal adjustments as long as matching size or “Category” is used. This tractor is able to equip for “Category I ” imple-...

  • Page 74: Attaching Implements

    OPERATION FIG. 121: Lift rods, 1, and lower links, 2, also have multiple positions. Normally, lower hole, B, in each lift rod is attached to forward hole, X, in lower link. CAUTION: Make sure all pins secured fasten. Then adjust each parts. Always use pins supplied with tractor.

  • Page 75: Using Position Control

    TG6370, 6400, 6490, 6620, 6670 FIG. 124: Certain implements require minimal side- play. Check chain 5, at each lower link should be evenly adjusted to reduce side-play to desirable level. Do not remove all side-play as lower link damage may result.

  • Page 76: Using Draft Control

    OPERATION Using Draft Control NOTE: For standard and dual clutch types, draft control is standard. For HST type, draft con- trol is optional. FIG. 128: Type of Work - When ground engaging implements such as plows, subsoilers, cultivators, etc. are used. CAUTION: Do not use draft control when precise hitch positioning is required (attaching / detaching implements for...

  • Page 77: Detaching Implements

    TG6370, 6400, 6490, 6620, 6670 Detaching Implements CAUTION: Always use position control lever to attach / detach implements to provide precise control of hitch. Select a level area to detach and store the imple- ment. Lower implement to ground by moving position control lever forward to down position.

  • Page 78: Joystick Operation

    OPERATION JOYSTICK Joystick Control Lever FIG. 132: The joystick control lever, 1, can be used to determine the front loader boom position and bucket position. The lever is located to the front on the right side of the seat. The “Raise”, “Lower”, “Free Flow” operations for the boom, and “Roll back”, “Dump”...

  • Page 79: Joystick Operation

    TG6370, 6400, 6490, 6620, 6670 Joystick Operation FIGS. 133 & 134: Joystick control lever, 1, pro- vides “Joystick” operation of auxiliary valve. Moving lever backward and forward operates the A / B spool valve for raising and lowering loader (or other attach- ment).

  • Page 80: External Auxiliary Hydraulics

    OPERATION EXTERNAL AUXILIARY HYDRAULICS Auxiliary hydraulics operate implements requiring external hydraulic source for operation. External Auxiliary Hydraulics Lever FIG. 137: External auxiliary hydraulics lever, 1, con- trols implement raising / lowering when first set of remote couplers are used. External auxiliary hydrau- lics lever, 2, controls implement when second set of remote couplers are used.

  • Page 81: Roll Over Protective Structure (Rops)

    TG6370, 6400, 6490, 6620, 6670 ROLL OVER PROTECTIVE STRUCTURE (ROPS) Rear ROPS Type FIG. 140: Rear ROPS type tractor is equipped with a roll-over protective structure (ROPS). Seat belts must be worn. When the tractor is not being operated, the ROPS can be folded down if it will hit the roof of the garage where it is parked.

  • Page 82: Rear Hitch

    FIG. 143 TABLE 9: Keep the maximum vertical load on the rear hitch, related to the rear tire size and type of hitch. TABLE 9: Maximum vertical load Tire Size TG6370 TG6400 ROPS/ Transmission Without front With front...
  • Page 83 TG6370, 6400, 6490, 6620, 6670 TG6620 Tire size TG6490 TG6670 ROPS / Transmission Without front With front Without front With front Front Rear weight (kg) weight (kg) weight (kg) weight (kg) Turf 212 / 80D-15 Turf 355 / 80D-20 Turf 29X12.00-15 Turf 475 / 65D-20...

  • Page 84: Comfort Adjustments

    OPERATION COMFORT ADJUSTMENTS Steering Column Tilt FIG. 144: Steering column can be adjusted forward and backward to any 1 position out of 3 positions, en- abling operator to select best steering wheel position. While holding steering wheel with both hands, depress tilt locking pedal, 1, and select desired position.

  • Page 85: Seat & Suspension Adjustment

    TG6370, 6400, 6490, 6620, 6670 SEAT & SUSPENSION ADJUSTMENT CAUTION: Make sure that the seat is ad- justed before driving. Do not attempt to adjust the seat during driving to avoid unexpected accident. FIG. 146: COBO GT62 / M200 Driver’s Weight Adjustment, 1 - The seat’s suspension settings is adjusted for the...

  • Page 86: Grammer Msg93 / 521

    OPERATION FIG. 148: GRAMMER MSG93 / 521 Driver’s Weight and Height Adjustment, 1 - The suspension of this seat is air suspension. The seat’s weight and height is adjusted for the driver’s weight by pulling and pressing weight and height ad- justment button, 1.

  • Page 87: Front Loader Fixation Point

    Levels of protection against hazardous substances: Category 1 according to EN 15695-1: 2009 TOWING Consult your ISEKI dealer for towing tractor as much as possible. If such cases as listed below, call your ISEKI dealer as transmission might be broken.

  • Page 88: Jacking

    OPERATION JACKING When jacking tractor, place the tractor on level, hard ground which is sufficiently illuminated, otherwise un- expected accidents may occur. Follow the instructions listed below: • Apply parking brakes. • Disengage all PTO. • Place all gear shift levers in neutral. •...

  • Page 89: External Auxiliary Power Supply Connector

    TG6370, 6400, 6490, 6620, 6670 EXTERNAL AUXILIARY POWER SUPPLY CONNECTOR CAUTION: Select the proper size electric wire for auxiliary power supply. Insert a fuse to the wiring for the attachment when using the smaller capacity electrical wires than the proper size. Otherwise, the...

  • Page 90: Instruments & Controls & Operation - Cabin Type

    INSTRUMENTS & CONTROLS & OPERATION INSTRUMENTS & CONTROLS & OPERATION - CABIN TYPE - FIG. 156 FIG. 156: General layout and location on Cabin. Air conditioner panel Front wiper / washer switch Front fresh air vents Rear wiper / washer switch (Option) Side fresh air vents Front work lamp switch Room lamp...

  • Page 91: Opening / Closing Doors

    TG6370, 6400, 6490, 6620, 6670 OPENING / CLOSING DOORS FIG. 157: To open the door from outside, push the door lock button, 1, and pull the handle, 2. FIG. 157 FIG. 158: To open the door from inside the cabin, move the door lever, 3, backward and push door frame, 4.

  • Page 92: Rear Window

    INSTRUMENTS & CONTROLS & OPERATION FIG. 160: When getting on or off the tractor, use the handle, 1, and footstep, 2. CAUTION: Do not put your weight on the door damper, 3, when getting on or off the tractor. FIG. 160 REAR WINDOW FIG.

  • Page 93: Corner Windows

    TG6370, 6400, 6490, 6620, 6670 CORNER WINDOWS The corner windows in left and right sides can be opened and closed. FIG. 163: Grasp the handle, 1, and turn 90 degrees to unlock the window (Position A). To open, push the corner window out slightly (Position B).

  • Page 94: Work Lamps

    INSTRUMENTS & CONTROLS & OPERATION WORK LAMPS The work lamps will light up the working area in front and rear of the cab. FIG. 166: To turn on the work lamp, press the upper part of the switch, 1, to ON for the front work lamp, and press the upper part of the switch, 2, to ON for the rear work lamp.

  • Page 95: Wiper And Washer Switch

    TG6370, 6400, 6490, 6620, 6670 WIPER AND WASHER SWITCH FIG. 169: Press the upper part of the switch, 1, to start the front wiper. Press the upper part of the switch, 2, to start the rear wiper (option). Press harder to release the washer fluid while the wiper blade is moving back and forth.

  • Page 96: Washer Reservoir

    INSTRUMENTS & CONTROLS & OPERATION WASHER RESERVOIR FIG. 172: The washer reservoir port, 1, is located at the rear left-hand side. Use automobile washer fluid to replenish the washer fluid level. FIG. 172 AIR CONDITIONER OPERATION FIG. 173: Air conditioner panel is located in the upper right-hand corner of the cab.

  • Page 97: Air Conditioner Button

    TG6370, 6400, 6490, 6620, 6670 Air Conditioner Button FIG. 175: To turn on the air conditioner, press the button, 1. The air conditioner button, 2, illuminates when air conditioner is operating. To operate the air conditioner, turn the fan speed control switch to ON position.

  • Page 98: Air Vents

    INSTRUMENTS & CONTROLS & OPERATION Air Vents FIG. 178: Side fresh air vents - 4 vents, 2 on the left side, 1, and 2 on the right side, 2, of the cab, blow air toward the sides of the operator. Each vent moves to allow the air flow direction to be changed.

  • Page 99: Using The Cooling System

    TG6370, 6400, 6490, 6620, 6670 Using the Cooling System FIG. 181: Set the ventilation control lever, 1, to Set the temperature adjustment lever, 2, to the coolest position. To turn on the air conditioner, press the air conditioner button, 3.

  • Page 100: Lubrication & Periodic Maintenance

    LUBRICATION & PERIODIC MAINTENANCE LUBRICATION & PERIODIC MAINTENANCE SPECIFICATIONS & CAPACITIES Engine Oil Use oil of the quality recommended by ISEKI. API Service “CC” (TG6370 / 6400), API Service “CD” (TG6490), API Ser- vice “CF-4” (TG6620/6670). Capacity (Crankcase and Filter) TG6370................................. 5.4 liters TG6400.................................

  • Page 101: Lubrication / Fill Points (Tg6370 / 6400)

    (extremely dusty or muddy), change intervals may need to be more frequent. LUBRICATION / FILL POINTS (TG6370 / 6400) TG6370 / 6400 FIG. 184: General layout of lubrication, fill and drain locations on tractor: TABLE 11: Type of lubrication (TG6370 / 6400) Ref. Description: Type: Crankcase...

  • Page 102: Lubrication / Fill Points (Tg6490 / 6620 /6670)

    LUBRICATION & PERIODIC MAINTENANCE LUBRICATION / FILL POINTS (TG6490 / 6620 / 6670) TG6490 / 6620 / 6670 FIG. 185: General layout of lubrication, fill and drain locations on tractor: TABLE 12: Type of lubrication (TG6490 / 6620 / 6670) Ref.

  • Page 103: Periodic Inspection And Maintenance Table

    TG6370, 6400, 6490, 6620, 6670 PERIODIC INSPECTION AND MAINTENANCE TABLE  : Clean or wash  : Inspect, replenish or adjust  : Replace  : Replacement or servicing at authorized service facility recommended. TABLE 13: Maintenance table Remarks Replace after initial 50 hours and then ...
  • Page 104 LUBRICATION & PERIODIC MAINTENANCE  : Clean or wash  : Inspect, replenish or adjust  : Replace  : Replacement or servicing at authorized service facility recommended. Remarks Inspect and adjust every 200 hours.    18 Toe-in adjustment If there is abnormality, consult your dealer.

  • Page 105: Service Access

    TG6370, 6400, 6490, 6620, 6670 SERVICE ACCESS CAUTION: Shut off engine before servic- ing tractor. Engine hood must be secured prior to operating tractor. To access radiator, battery and engine components, engine hood can be opened. Opening / Closing Hood FIG.

  • Page 106: Lubrication Details

    NOTE: When operating in muddy or extremely wet conditions, daily lubrication of fittings is recommended. Engine Oil & Filter (TG6370 / 6400 / 6490) Engine oil and filter should be changed after first 50 hours of operation and then every 200 hours for...

  • Page 107: Engine Oil & Filter (Tg6620 / 6670)

    TG6370, 6400, 6490, 6620, 6670 Engine Oil & Filter (TG6620 / 6670) Engine oil and filter should be changed after first F: Full 50 hours of operation and then every 200 hours for engine oil and every 300 hours for engine oil filter hereafter.

  • Page 108: Transmission Oil & Filters

    LUBRICATION & PERIODIC MAINTENANCE Transmission Oil & Filters Transmission oil lubricates transmission, center hous- ing, and rear axles and also serves as hydraulic fluid. Transmission oil and filter should be changed after first 50 hours of operation and then every 400 hours thereafter.

  • Page 109: Front Axle Oil

    TG6370, 6400, 6490, 6620, 6670 FIG. 199: To Clean Transmission Oil Filters (HST Type) - With oil drained, unscrew transmission oil filter, 6, from adapter (filter wrench may be required), and transmission oil suction filter, 7 from transmission case. Clean them, dry thoroughly and then reinstall them. If filter is damaged, replace it with new one.

  • Page 110: Cooling System

    LUBRICATION & PERIODIC MAINTENANCE COOLING SYSTEM CAUTION: Do not open the radiator cap except when checking or replacing the coolant. Make sure to allow the engine to cool sufficiently before opening the cap. If the cap is opened while the engine is hot, coolant may be discharged, resulting in a burn or other injury.

  • Page 111: Use Of Anti-Freeze

    TG6370, 6400, 6490, 6620, 6670 Use of Anti-Freeze Freezing of the coolant may result in damage to the engine. Mix in 50/50anti-freeze (Long Life Coolant) when the outside temperature will drop below 0 °C (32 °F) during the winter. The mixture ratio of anti-freeze differs depending upon the anti-freeze manufacturer and temperature.

  • Page 112: Fan Belt

    FIG. 206: Correct fan belt tension helps to insure adequate coolant flow through the cylinder block and radiator. (TG6370 / 6400 / 6490) The belt is correctly tensioned when belt deflection is approximately 14 mm (0.551 in) as shown at “x” when thump pressure (10 kgf) is exerted at the center of belt span.

  • Page 113: Engine Air Cleaner

    TG6370, 6400, 6490, 6620, 6670 ENGINE AIR CLEANER IMPORTANT: Never operate the engine with the air filters removed. Cleaning Air Cleaner / Vacuator Valve FIGS. 208 & 209: The engine air cleaner, 1, is located above the engine. To service the engine air cleaner, gain access, open the hood.

  • Page 114: Fuel System (Tg6370 / 6400 / 6490)

    LUBRICATION & PERIODIC MAINTENANCE FUEL SYSTEM (TG6370 / 6400 / 6490) Use only clean diesel fuel of correct grade. Introduc- tion of water or dirt into fuel tank or other portion of fuel system can cause repeated plugging of fuel filter and possible injection pump and injector damage.

  • Page 115: Air-Bleeding Fuel System

    TG6370, 6400, 6490, 6620, 6670 Air-Bleeding Fuel System FIG. 213: To bleed air from the fuel system: • Fill the fuel tank. • Turn the main switch “ON” and turn the fuel cock to “AIR”. If the engine still fails to start, pressure injection line can be loosened where they attach to the injectors.

  • Page 116: Fuel System (Tg6620 / 6670)

    LUBRICATION & PERIODIC MAINTENANCE FUEL SYSTEM (TG6620 / 6670) Use only clean diesel fuel of correct grade. Introduc- tion of water or dirt into fuel tank or other portion of fuel system can cause repeated plugging of fuel filter and possible injection pump and injector damage. IMPORTANT: Do not tamper with injection pump or injector adjustment.

  • Page 117: Air-Bleeding Fuel System

    TG6370, 6400, 6490, 6620, 6670 Air-Bleeding Fuel System FIG. 219: To bleed air from the fuel system: • Fill the fuel tank. • Turn the main switch “ON” and turn the fuel cock to “AIR”. If the engine still fails to start, pressure injection line can be loosened where they attach to the injectors.

  • Page 118: Electrical System

    LUBRICATION & PERIODIC MAINTENANCE ELECTRICAL SYSTEM Battery FIG. 222: Battery, 1, is located under engine hood in front of radiator. When battery is removed, electrolyte inspection or cable cleaning is necessary. Keep top of battery clean and ensure cable connec- tions are clean and tight.
  • Page 119 TG6370, 6400, 6490, 6620, 6670 IMPORTANT: Do not quick-charge the battery, or it may damage the battery and decrease its performance. IMPORTANT: Charge the battery before the first use of this tractor. IMPORTANT: When storing tractor for long period without operation, self discharge of battery will happen (especially in win- ter).

  • Page 120: Safety Switches

    LUBRICATION & PERIODIC MAINTENANCE Safety Switches This tractor is equipped with a neutral-start system consisting of neutral switches and a relay. To start tractor, ALL the following is required: PTO switch must be in OFF position Range shift lever must be in neutral position (HST type and dual clutch type only) Forward / Reverse Lever must be in neutral position (Standard type only)

  • Page 121: Fuse Location (Standard Type)

    TG6370, 6400, 6490, 6620, 6670 Fuse Location (Standard Type) Main Fuse Box, A- Located on right-hand side, to steering post. TABLE 14: Function of main fuse box Ref. Function Hazard Warning Lamp Combination Switch Stop Lamp Instrument Panel Power Supply...

  • Page 122: Fuse Location (Tg6400 / 6490 Hst Type & Dual Clutch Type)

    LUBRICATION & PERIODIC MAINTENANCE Fuse Location (TG6400 / 6490 HST Type & Dual Clutch Type) Main Fuse Box, A- Located on right-hand side, to steering post. TABLE 17: Function of main fuse box Ref. Function Hazard Warning Lamp Combination Switch Stop Lamp Instrument Panel Power Supply Cigar Socket...

  • Page 123: Fuse Location (Tg6620 / 6670)

    TG6370, 6400, 6490, 6620, 6670 Fuse Location (TG6620 / 6670) Main Fuse Box, A- Located on right-hand side, to steering post. TABLE 20: Function of main fuse box Ref. Function Hazard Warning Lamp Combination Switch Stop Lamp Instrument Panel Power Supply...

  • Page 124: Fuse Location (Cabin Type)

    LUBRICATION & PERIODIC MAINTENANCE NOTE: Failure of fuse, B-2, is usually caused from incorrect polarity (such as reversed cables when using a booster battery). Failed fuse will not allow battery to be charged during normal operation. IMPORTANT: Fuses are of specific amperage ca- pacity for the circuit in which they are located.

  • Page 125: Clutch Free-Play Adjustment

    TG6370, 6400, 6490, 6620, 6670 CLUTCH FREE-PLAY ADJUSTMENT FIG. 229: Check clutch pedal free-play regularly and adjust as necessary. Correct clutch pedal free-play, A, is 25 to 35 mm (1 to 1 - 3 / 8”) when measured at the end of the pedal as shown.

  • Page 126: Wheels & Tires

    Rear 12.4-24 23 (160) and operator safety. Correct condition prior to tractor Front 8-16 23 (160) operation. Agri TG6370 Rear 13.6-24 14 (100) TG6400 Front 212 / 80D-15 23 (160) Tire Inflation Pressures Turf Rear 355 / 80D-20 14 (100)

  • Page 127: Front Wheel Spacing

    TG6370, 6400, 6490, 6620, 6670 Front Wheel Spacing FIG. 235: Front 4WD Wheels - Ag tires, turf tires can- not be reversed. TABLE 26: Front wheel setting Tire Type Setting Tractor Location / Tires (mm) Size 7-16 1,090 Agri 8-16...

  • Page 128: Tg6370 / 6400

    LUBRICATION & PERIODIC MAINTENANCE FIGS. 237, 238 & 239: Tighten all wheel bolts se- curely and recheck after short period of operation. TABLE 27: Agricultural rear tire settings Tire Setting TG6370 / 6400 Tractor Ref. Type Tires Location / Size (mm) 1,105 1,175 TG6370 12.4-24 6PR...

  • Page 129: Steering Free-Play

    TG6370, 6400, 6490, 6620, 6670 Steering Free-Play FIG. 240: Steering should be checked for excessive looseness, as indicated by steering wheel free-play. Maximum free-play is approximately 30 mm (1.25”) when measured at outside of steering wheel rim. Excessive free-play can be caused by: •...

  • Page 130: Storage

    LUBRICATION & PERIODIC MAINTENANCE STORAGE FIG. 243: If tractor is to be stored for extended peri- Standard & HST Type ods, such as off-season non-use, certain measures Dual Clutch Types should be taken for its preservation during such periods. These measures will vary according to geo- graphical area and storage season.

  • Page 131: Washing Of The Machine

    TG6370, 6400, 6490, 6620, 6670 WASHING OF THE MACHINE CAUTION: If you use high pressure washer, be sure to use in accordance with this operator’s manual and safety label of washer. In case of irregular use, it may cause personal injury and damage to the machine.

  • Page 132: Major Consumables List

    LUBRICATION & PERIODIC MAINTENANCE MAJOR CONSUMABLES LIST ROPS Type Rear ROPS Type Center ROPS Type FIG. 247 AIR CLEANER BLADE FUSE FILTER COMP 32V05A 32V10A 32V15A 32V20A 32V25A FUEL FILTER ASSY SLOW BLOW FUSE FUEL FILTER ELEMENT OIL FILTER CARTRIDGE HEAD LAMP BULB / 12V / 45 / 40W NUMBER PLATE LAMP...
  • Page 133 TG6370, 6400, 6490, 6620, 6670 PARTS NAME MODEL PARTS CODE TG6370 / 6400 1801-104-203-00 AIR CLEANER FILTER COMP TG6490 1803-104-203-00 FUEL FILTER ASSY 1650-111-220-10 FUEL FILTER ELEMENT 1513-102-329-00 OIL FILTER CARTRIDGE 6213-240-005-10 CARTRIDGE (20) Standard Type 1785-509-201-00 CARTRIDGE HST Type...

  • Page 134: Cabin Type

    LUBRICATION & PERIODIC MAINTENANCE CABIN Type FIG. 248 AIR CLEANER BLADE FUSE FILTER COMP 32V05A 32V7.5A 32V10A 32V15A 32V20A 32V25A FUEL FILTER ASSY SLOW BLOW FUSE FUEL FILTER ELEMENT OIL FILTER CARTRIDGE HEAD LAMP BULB / 12V / 45 / 40W NUMBER PLATE LAMP BULB / 12V / 5W WORKING LAMP...
  • Page 135 TG6370, 6400, 6490, 6620, 6670 PARTS NAME MODEL PARTS CODE TG6370 / 6400 1801-104-203-00 AIR CLEANER FILTER COMP TG6490 / 6620 / 6670 1803-104-203-00 TG6370 / 6400 / 6490 1650-111-220-10 FUEL FILTER ASSY TG6620 / 6670 T. D. A TG6370 / 6400 / 6490...

  • Page 136: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING ENGINE Problem Possible Cause Remedy Starter motor does not Gear shift lever not in neutral Place gear shift lever in neutral. operate with key turned to PTO clutch engaged Turn off PTO switch. START Broken safety switch Consult your dealer. Discharged battery Charge battery.

  • Page 137: Clutch

    TG6370, 6400, 6490, 6620, 6670 Problem Possible Cause Remedy Poor engine output Seized fuel injectors and / or carbon Consult your dealer. deposit Insufficient compression or leaking Consult your dealer. valves Incorrect valve clearances Consult your dealer. Incorrect fuel injection timing Consult your dealer.

  • Page 138: Hydraulic System

    TROUBLESHOOTING HYDRAULIC SYSTEM Problem Possible Cause Remedy Insufficient oil pressure Low engine speed Increase speed. Low transmission oil Fill to specified level. Intake piping is sucking air Retighten clamps or replace cracked pipes and defective O-rings. Clogged oil filter (s) Clean or replace.

  • Page 139: Hst System (Hst Type Only)

    TG6370, 6400, 6490, 6620, 6670 HST SYSTEM (HST TYPE ONLY) Problem Possible Cause Remedy Despite depressing HST pedal, Disconnected HST pedal sensor coupler Connect tractor does not move Disconnected arm of HST pedal sensor Check and assemble Broken HST pedal sensor...

  • Page 140: Specifications

    ENGINE TG6370 TG6400 TG6490 Make ..............Iseki Diesel ......Iseki Diesel ......Iseki Diesel Model ..............E3CG ........ E3CD ........ E4CG Type of Injection ..........Direct Injection ....Direct Injection ....Direct Injection Overhead Valve ....Overhead Valve ....Overhead Valve Aspiration............. Natural ......Turbo charger ......Natural Displacement .............1,647 cm...

  • Page 141: Transmission

    Gear Speeds ........ 24 gears forward, 24 reverse Clutch ......... Electro-hydraulic wet multi disc POWER TAKE OFF (PTO) TG6370 / 6400 (Standard / HST Type) TG6490 (Standard / HST Type) Type ..........Independent, engine driven ......Independent, engine driven Control ..........Electro-hydraulic control .........Electro-hydraulic control Clutch ........

  • Page 142: Hydraulic System

    Control ......Operated by single position control lever ..Operated by single position control lever Lift Capacity measured at ball ends ..1,270 kg ............1,580 kg measured at 24 inches ..1,150 kg ............1,400 kg TG6370 (Dual Clutch Type) TG6490 (Dual Clutch Type) Steering System Type.

  • Page 143: Capacities

    TG6370, 6400, 6490, 6620, 6670 CAPACITIES TG6370 TG6400 TG6490 TG6620/6670 Engine Crankcase with Filter ....5.4 liters ....4.7 liters ....7.9 liters ....5.8 liters Transmission (Standard/ HST Type) ..31.0 liters ....31.0 liters ....38.0 liters ....38.0 liters Transmission (Dual Clutch Type) ...38.0 liters ....None ....40.0 liters ....None Fuel Tank ..........40.0 liters ....

  • Page 144: General Dimensions

    SPECIFICATIONS GENERAL DIMENSIONS Rear ROPS Type Model TG6370 Tire Type Agri Turf Front 7-16 8-16 212 / 80D-15 260 / 70R16 Rear 12.4-24 13.6-24 355 / 80D-20 380 / 70R24 Height Over ROPS 2,555 2,585 2,520 2,575 Width 1,425 - 1,620...
  • Page 145 TG6370, 6400, 6490, 6620, 6670 Model TG6400 Tire Type Agri Turf Front 7-16 8-16 212 / 80D-15 260 / 70R16 Rear 12.4-24 13.6-24 355 / 80D-20 380 / 70R24 Height Over ROPS 2,555 2,585 2,520 2,575 Width 1,425 - 1,620...

  • Page 146: Center Rops Type

    SPECIFICATIONS Center ROPS Type Model TG6370 TG6490 Tire Type Agri Turf Agri 212 / Front 7-16 8-16 260 / 70R16 8-16 9.5-16 80D-15 355 / Rear 12.4-24 13.6-24 380 / 70R24 13.6-24 13.6-28 80D-20 Height Over ROPS 2,240 2,265 2,200...

  • Page 147: Cabin Type

    TG6370, 6400, 6490, 6620, 6670 CABIN Type Model TG6370 Tire Type Agri Turf Front 7-16 8-16 212 / 80D-15 260 / 70R16 Rear 12.4-24 13.6-24 355 / 80D-20 380 / 70R24 Height 2,260 2,290 2,220 2,280 Width 1,425 - 1,620...
  • Page 148 SPECIFICATIONS Model TG6400 Tire Type Agri Turf Front 7-16 8-16 212 / 80D-15 260 / 70R16 Rear 12.4-24 13.6-24 355 / 80D-20 380 / 70R24 Height 2,260 2,290 2,220 2,280 Width 1,425 - 1,620 1,450 - 1,630 1,440 - 1,550 1,490 - 1,555 Overall Length 3,195 (Length without front hitch : 3,175)
  • Page 149 TG6370, 6400, 6490, 6620, 6670 Model TG6620/6670 Tire Type Agri Turf Front 8-16 9.5-16 212 / 80D-15 29x12.00-15 10x16.5 280 / 70R16 Rear 13.6-24 13.6-28 355 / 80D-20 475 / 65D-20 17.5L-24 420 / 70R24 Height 2,305 2,355 2,240 2,265...

  • Page 150: Axle Loads & Tire Load Carrying Capacity

    Load (kg) Load (kg) (kg) (kg) (kg) Agri 7-16 12.4-24 1,770 2,310 Agri 8-16 13.6-24 2,080 2,450 TG6370 1,500 TG6400 Turf 212 / 80D-15 355 / 80D-20 1,650 2,370 Turf 260 / 70R16 1,100 380 / 70R24 1,770 2,370 Agri 8-16 13.6-24...

  • Page 151: Vibration Declaration (78 / 764 / Eec)

    ATTACHMENT (OPTION) TABLE 38: List of attachment (option) Front Bumper (except Center ROPS type) Rear Wiper (for CABIN) Room Mirror (for CABIN) Sun Visor (for CABIN) Radio Antenna (for CABIN) MID PTO NOTE: When attaching non-ISEKI authorized parts, consult your dealer.
  • Page 152 MEMO...

  • Page 153: Index

    TG6370, 6400, 6490, 6620, 6670 INDEX Numeric 3-point linkage 68, 71 defrosting 98 4-wheel drive 62 differential lock 62 7-pin socket 88 dimensions 143 dismantling and disposal 15 doors adjustment lock / unlock 90 brake 124 opening / closing 90...
  • Page 154 INDEX grease fittings 105 noise declaration 149 gear shift display 37 normal starting 44, 45, 46 heating 98 operation 30 hood another person 8 opening / closing 104 before 9 HST pedal 53 during 13 HST stage selection 55 joystick 77, 78 HST system 138 operator observations 48 hydraulic system 137, 141...
  • Page 155 TG6370, 6400, 6490, 6620, 6670 safety 6 table of contents 3 loading onto or unloading from a truck 12 tachometer 36 maintenance 7 temperature adjustment 96 operation 8 throttle lever 114, 116 personal 6 tire inflation pressures 125 starting engine and operating tractor 10...

  • Page 156: Wiring Diagram

    WIRING DIAGRAM WIRING DIAGRAM Standard Type...
  • Page 157 TG6370, 6400, 6490, 6620, 6670 HST Type (TG6400 / 6490)
  • Page 158 WIRING DIAGRAM HST Type (TG6620 / 6670) (Sheet A) See Sheet B (1) Sheet B (2)
  • Page 159 TG6370, 6400, 6490, 6620, 6670 HST Type (TG6620 / 6670) (Sheet B) Sheet A (1) See Sheet A (2)
  • Page 160 WIRING DIAGRAM Dual Clutch Type (Sheet A) See Sheet B...
  • Page 161 TG6370, 6400, 6490, 6620, 6670 Dual Clutch Type (Sheet B) See Sheet A...
  • Page 162 TG6370 TG6400 TG6490 TG6620 TG6670 Overseas Business Division 5-3-14, Nishi-Nippori, Arakawa-ku, Tokyo 116-8541, Japan Phone: (03) 5604-7658 Fax: (03) 5604-7703 Parts code: 1815-912-103-1E-EN Publishing date: 18 September 2017 Printed in Japan...

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