Kubota B2301, and B2601 Workshop Manual — 9Y111-11560

About this manual

Kubota published this Workshop Manual for the B2301 and B2601 tractor models. It brings the documented service and technical-reference material for those named tractors into a single publication.

Its documented technical value includes torque settings, wear limits, fluid and system capacities, dimensions, speed ratings, and emission data for service checks and specification lookup. Use the values and conditions stated in the PDF for the applicable model and procedure.

Use the Manual Contents below to check that the exact repair, inspection, or maintenance procedure you need is included in this publication.

Manual details

Manufacturer

Kubota

Manual type

Workshop Manual

Equipment type

Tractor

Models

B2301 and B2601

Document number

9Y111-11560

Publication year

2014

Language

English

Page count

341

Product highlights

Electrical systems

The manual includes wiring diagrams and electrical troubleshooting.

Hydraulic systems

The manual includes hydraulic pressure-test material and hydraulic valve-adjustment material.

Specifications and settings

The manual includes reference information for torque specifications, wear limits, capacities, and dimensions.

Special tools

A special-tools section is included.

Maintenance

The manual includes a maintenance schedule.

Applicability and key coverage

Supported models: B2301; B2601.

Equipment type: Tractor.

Related source publications

For the diesel engine / tractor mechanism, refer to Workshop Manual (Code No. 9Y021-01870 / 9Y021-18200).

Manual contents

Use these source headings to locate the task or system you need in the PDF.

• SAFETY FIRST — p. I-1
• SAFETY DECALS — p. I-4
• SPECIFICATIONS — p. I-7
• TRAVELING SPEEDS — p. I-8
• DIMENSIONS — p. I-9
  • TRACTOR IDENTIFICATION — p. G-1
  • GENERAL PRECAUTIONS — p. G-2
  • HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING — p. G-3
  • [1] WIRING — p. G-3
  • [2] BATTERY — p. G-5
  • [3] FUSE — p. G-5
  • [4] CONNECTOR — p. G-5
  • [5] HANDLING OF CIRCUIT TESTER — p. G-6
  • [6] COLOR OF WIRING — p. G-7
  • LUBRICANTS, FUEL AND COOLANT — p. G-8
  • TIGHTENING TORQUES — p. G-11
  • [1] GENERAL USE SCREWS, BOLTS AND NUTS — p. G-11
  • [2] STUD BOLTS — p. G-11
  • [3] METRIC SCREWS, BOLTS AND NUTS — p. G-12
    • THREADS — p. G-12
  • [5] PLUGS — p. G-12
  • MAINTENANCE CHECK LIST — p. G-13
  • CHECK AND MAINTENANCE — p. G-15
  • [1] DAILY CHECK — p. G-15
  • [2] CHECK POINTS OF EVERY 50 HOURS — p. G-19
  • [3] CHECK POINTS OF EVERY 100 HOURS — p. G-21
  • [4] CHECK POINTS OF EVERY 200 HOURS — p. G-25
  • [5] CHECK POINTS OF EVERY 400 HOURS — p. G-28
    • [6] CHECK POINT OF EVERY 800 HOURS — p. G-30
    • [7] CHECK POINT OF EVERY 1500 HOURS — p. G-30
    • [8] CHECK POINT OF EVERY 3000 HOURS — p. G-30
    • [9] CHECK POINT OF EVERY 1 YEAR — p. G-30
    • [10]CHECK POINTS OF EVERY 2 YEARS — p. G-31
    • [11]OTHERS — p. G-33
    • SPECIAL TOOLS — p. G-35
    • [1] SPECIAL TOOLS FOR ENGINE — p. G-35
  • [2] SPECIAL TOOLS FOR TRACTOR — p. G-42
  • TIRES — p. G-45
  • [1] TIRE PRESSURE — p. G-45
  • [2] WHEEL ADJUSTMENT — p. G-46
    • (1) Front Wheels — p. G-46
      • (2) Rear Wheels — p. G-48
  • [3] BALLAST — p. G-50
• 10. IMPLEMENT LIMITATIONS — p. G-52
• ENGINE BODY — p. 1-M1
• [1] CLOSED BREATHER — p. 1-M1
• [2] GOVERNOR — p. 1-M2
• TROUBLESHOOTING — p. 1-S1
• SERVICING SPECIFICATIONS — p. 1-S5
• TIGHTENING TORQUES — p. 1-S11
• [1] TRACTOR SECTION — p. 1-S11
• [2] ENGINE SECTION — p. 1-S11
• CHECKING, DISASSEMBLING AND SERVICING — p. 1-S12
• [1] CHECKING AND ADJUSTING — p. 1-S12
  • (1) Engine Body — p. 1-S12
  • (2) Lubricating System — p. 1-S14
  • (3) Cooling System — p. 1-S14
  • (4) Fuel System — p. 1-S17
• [2] PREPARATION — p. 1-S21
  • (1) Draining Lubricants and Coolant — p. 1-S21
  • (2) Separating Engine from Clutch Housing — p. 1-S23
  • (3) Separating Engine from Front Axle Frame — p. 1-S24
• [3] DISASSEMBLING AND ASSEMBLING — p. 1-S25
  • (1) External Components — p. 1-S25
  • (2) Cylinder Head and Valve and Oil Pan — p. 1-S25
  • (3) Gear Case — p. 1-S28
  • (4) Piston and Connecting Rod — p. 1-S32
  • (5) Crankshaft — p. 1-S35
• [4] SERVICING — p. 1-S37
  • (1) Cylinder Head and Valves — p. 1-S37
  • (2) Idle Gear and Camshaft — p. 1-S42
  • (3) Piston and Connecting Rod — p. 1-S44
  • (4) Crankshaft — p. 1-S47
  • (5) Cylinder — p. 1-S51
  • (6) Oil Pump — p. 1-S51
• STRUCTURE — p. 2-M1
• FRONT CASE — p. 2-M2
• HYDROSTATIC TRANSMISSION — p. 2-M3
• [1] STRUCTURE — p. 2-M3
• [2] PUMP AND MOTOR — p. 2-M5
• [3] OIL FLOW AND VALVES — p. 2-M6
• [4] CONTROL LINKAGE — p. 2-M13
• SPEED SET DEVICE — p. 2-M14
• [1] SPEED SET LINKAGE — p. 2-M14
  • (1) Speed Set — p. 2-M14
  • (2) Speed Set Release — p. 2-M15
• RANGE GEAR SHIFT SECTION — p. 2-M16
• FRONT WHEEL DRIVE SECTION — p. 2-M17
• PTO SYSTEM — p. 2-M18
• [1] STRUCTURE — p. 2-M18
• [2] REAR PTO SECTION — p. 2-M19
• [3] REAR PTO / MID-PTO SECTION — p. 2-M20
• [4] MID-PTO SECTION — p. 2-M21
• [5] INDEPENDENT PTO — p. 2-M22
  • (1) Hydraulic Circuit — p. 2-M22
  • (2) Independent PTO Control Valve — p. 2-M22
  • (3) Independent PTO Clutch — p. 2-M23
  • (4) Independent PTO Lever "Engaged" — p. 2-M24
  • (5) Independent PTO Lever "Disengaged" — p. 2-M25
• DIFFERENTIAL GEAR SYSTEM — p. 2-M26
• [1] DIFFERENTIAL FUNCTION — p. 2-M26
• [2] DIFFERENTIAL LOCK — p. 2-M27
• TROUBLESHOOTING — p. 2-S1
• SERVICING SPECIFICATIONS — p. 2-S5
• TIGHTENING TORQUES — p. 2-S7
• CHECKING, DISASSEMBLING AND SERVICING — p. 2-S8
• [1] CHECKING AND ADJUSTING — p. 2-S8
  • (1) HST — p. 2-S8
  • (2) Independent PTO Control Valve — p. 2-S13
• [2] PREPARATION — p. 2-S14
  • (1) Dismounting the Step and Floor Seat — p. 2-S14
• [3] DISASSEMBLING AND ASSEMBLING — p. 2-S20
  • (1) Separating Engine and Clutch Housing — p. 2-S20
  • (2) Front Case — p. 2-S20
  • (3) Hydraulic Transmission (HST) — p. 2-S21
  • (4) PTO Clutch Case — p. 2-S25
  • (5) Bevel Pinion Shaft — p. 2-S25
  • (6) Sub Gear Shaft — p. 2-S26
  • (7) Front Wheel Drive Shaft — p. 2-S27
  • (8) Independent PTO Clutch Shifter — p. 2-S29
  • (9) Independent PTO Clutch — p. 2-S30
  • (10)Mid-PTO Section — p. 2-S34
  • (11)Differential Gear Section — p. 2-S36
• [4] SERVICING — p. 2-S38
  • (1) HST — p. 2-S38
  • (2) Independent PTO Clutch — p. 2-S40
  • (3) Transmission Case — p. 2-S41
  • (4) Differential Gear — p. 2-S42
• STRUCTURE — p. 3-M1
• TROUBLESHOOTING — p. 3-S1
• TIGHTENING TORQUES — p. 3-S2
• DIASSEMBLING AND SERVICING — p. 3-S3
• [1] DIASSEMBLING AND ASSEMBLING — p. 3-S3
  • (1) Separating Rear Axle Case — p. 3-S3
  • (2) Disassembling Rear Axle Case — p. 3-S4
• [2] SERVICING — p. 3-S5
• LINKAGE — p. 4-M1
• OPERATION — p. 4-M2
• TROUBLESHOOTING — p. 4-S1
• SERVICING SPECIFICATIONS — p. 4-S2
• TIGHTENING TORQUES — p. 4-S3
• CHECKING, DISASSEMBLING AND SERVICING — p. 4-S4
• [1] CHECKING AND ADJUSTING — p. 4-S4
• [2] DISASSEMBLING AND ASSEMBLING — p. 4-S4
  • (1) Separating Rear Axle Case — p. 4-S5
  • (2) Disassembling Rear Axle Case — p. 4-S6
• [3] SERVICING — p. 4-S7
• STRUCTURE — p. 5-M1
• [1] 4 WHEEL DRIVE MODEL — p. 5-M1
• TROUBLESHOOTING — p. 5-S1
• SERVICING SPECIFICATIONS — p. 5-S2
• TIGHTENING TORQUES — p. 5-S3
• CHECKING, DISASSEMBLING AND SERVICING — p. 5-S4
• [1] CHECKING AND ADJUSTING — p. 5-S4
• [2] DISASSEMBLING AND ASSEMBLING — p. 5-S5
  • (1) Separating Front Axle Assembly — p. 5-S5
  • (2) Disassembling Front Axle Assembly — p. 5-S6
• [3] SERVICING — p. 5-S12
• HYDRAULIC CIRCUIT — p. 6-M1
• STEERING CONTROLLER — p. 6-M2
• STEERING CYLINDER — p. 6-M3
• HYDRAULIC PUMP — p. 6-M4
• TROUBLESHOOTING — p. 6-S1
• SERVICING SPECIFICATIONS — p. 6-S3
• TIGHTENING TORQUES — p. 6-S4
• CHECKING, DISASSEMBLING AND SERVICING — p. 6-S5
• [1] CHECKING — p. 6-S5
  • (1) Relief Valve — p. 6-S5
  • (2) Hydraulic Pump for Power Steering — p. 6-S5
• [2] DISASSEMBLING — p. 6-S6
  • (1) Separating Power Steering Controller — p. 6-S6
  • (2) Power Steering Controller — p. 6-S6
  • (3) Power Steering Cylinder — p. 6-S7
• [3] SERVICING — p. 6-S9
  • (1) Power Steering Cylinder — p. 6-S9
• HYDRAULIC CIRCUIT — p. 7-M1
• HYDRAULIC PUMP — p. 7-M2
• HYDRAULIC CIRCUIT — p. 7-M3
• [1] HYDRAULIC CIRCUIT — p. 7-M3
• [2] RELIEF VALVE — p. 7-M4
• [3] POSITION CONTROL VALVE — p. 7-M5
  • (1) Structure — p. 7-M5
  • (2) Operation — p. 7-M6
• [4] FEEDBACK LINKAGE FOR POSITION CONTROL — p. 7-M8
• FRONT LOADER CONTROL VALVE — p. 7-M9
• [1] STRUCTURE — p. 7-M9
• [2] OPERATION — p. 7-M10
• REMOTE CONTROL VALVE (IF EQUIPPED) — p. 7-M17
• HYDRAULIC OUTLET — p. 7-M18
• TROUBLESHOOTING — p. 7-S1
• SERVICING SPECIFICATIONS — p. 7-S2
• TIGHTENING TORQUES — p. 7-S3
• CHECKING, DISASSEMBLING AND SERVICING — p. 7-S4
• [1] CHECKING AND ADJUSTING — p. 7-S4
  • (1) Hydraulic Pump (For 3-Point Hitch Hydraulic System) — p. 7-S4
  • (2) Hydraulic Pump (For Power Steering, PTO Clutch and HST) — p. 7-S6
  • (3) 3-Points Hitch Relief Valve — p. 7-S8
  • (4) Lift Arm — p. 7-S8
• [2] DISASSEMBLING AND ASSEMBLING — p. 7-S9
  • (1) Hydraulic Pump — p. 7-S9
  • (2) 3-Point Hitch — p. 7-S10
  • (3) Separating Hydraulic Cylinder From Tractor Body — p. 7-S10
  • (4) 3-Points Hitch: Hydraulic Cylinder — p. 7-S12
  • (5) Front Loader Control Valve Assembly (If Equipped) — p. 7-S15
  • (6) Remote Control Valve (If Equipped) — p. 7-S18
• [3] SERVICING — p. 7-S18
• WIRING DIAGRAM — p. 8-M1
• ENGINE STARTING SYSTEM AND STOPPING SYSTEM — p. 8-M2
• [1] OPC SYSTEM CIRCUIT — p. 8-M2
• [2] CONTROLLER — p. 8-M3
• [3] SAFETY SWITCH — p. 8-M6
  • (1) PTO Select Lever Switch — p. 8-M6
  • (2) PTO Clutch Lever Switch — p. 8-M6
  • (3) HST Pedal Switch (HST Model) — p. 8-M7
  • (4) Seat Switch — p. 8-M7
• [4] STARTER — p. 8-M8
• [5] ENGINE STOP SOLENOID — p. 8-M8
• [6] GLOW PLUG — p. 8-M9
• CHARGING SYSTEM — p. 8-M10
• LIGHTING SYSTEM — p. 8-M11
• [1] HEAD LIGHT — p. 8-M11
• [2] TURN SIGNAL LIGHT — p. 8-M11
• [3] HAZARD LIGHT — p. 8-M12
• INSTRUMENT PANEL — p. 8-M13
• [1] EASY CHECKER™ — p. 8-M13
• [2] SWITCHES AND SENSORS — p. 8-M13
• TROUBLESHOOTING — p. 8-S1
• SERVICING SPECIFICATIONS — p. 8-S8
• TIGHTENING TORQUES — p. 8-S9
• CHECKING AND ADJUSTING — p. 8-S10
• [1] BATTERY — p. 8-S10
• [2] FUSE — p. 8-S11
• [3] RELAYS — p. 8-S12
  • (1) Relays — p. 8-S12
• [4] STARTING SYSTEM — p. 8-S13
  • (1) Key Switch — p. 8-S13
  • (2) Safety Switches — p. 8-S14
  • (3) OPC Controller — p. 8-S15
  • (4) Engine Stop Solenoid — p. 8-S15
  • (5) Starter — p. 8-S15
  • (6) Glow Plug — p. 8-S16
• [5] CHARGING SYSTEM — p. 8-S17
  • (1) AC Dynamo — p. 8-S17
  • (2) Regulator — p. 8-S17
• [6] LIGHTING SYSTEM — p. 8-S18
  • (1) Combination Switch — p. 8-S18
  • (2) Flasher Unit — p. 8-S20
• [7] WARNING LAMP, INDICATOR LAMP AND GAUGE — p. 8-S20
  • (1) Instrument Panel — p. 8-S20
  • (2) Engine Oil Pressure Switch — p. 8-S21
  • (3) Coolant Temperature Sensor — p. 8-S21
  • (4) Fuel Sensor — p. 8-S22
• DISASSEMBLING AND ASSEMBLING — p. 8-S23
• [1] STARTER — p. 8-S23
• [2] AC DYNAMO — p. 8-S24
• SERVICING — p. 8-S25
• [1] STARTER — p. 8-S25

Capabilities

The source outline indexes checking and adjustment, maintenance tasks, troubleshooting, servicing instructions, and disassembly and assembly. Use these source-backed headings to locate the applicable task or system in the source PDF, then confirm model-specific notes, specifications, illustrations, and operating conditions at the relevant page before carrying out service work.

Keep the source's safety sequence, prerequisite steps, labels, units, configuration notes, and footnotes with the selected task; do not apply an isolated value outside the conditions stated in the manual.

Technical reference

Reference tables include torque settings, wear limits, fluid and system capacities, and dimensions for service checks, adjustment work, and specification lookup. Use the values and conditions in the PDF for the applicable model and procedure.

• Service limits and settings: torque settings and wear limits.
• Fluid reference: fluid and system capacities.
• Machine specifications: dimensions.

Delivery

This manual is supplied as a digital PDF file and is available for instant download after purchase. No physical media is shipped.

References

Kubota Workshop Manual for Tractor, document code 9Y111-11560, PDF edition.