Table of Contents
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Chapters
Table of Contents
Troubleshooting
Related Manuals for Kubota WSM B2650
Summarization of Contents
TO THE READER
Information
Contains general information about the tractor, including safety, specifications, and dimensions.
General
Covers tractor identification, general precautions, lubrication, and maintenance schedules.
Mechanism
Details the internal structure and function of the engine, clutch, and other mechanical components.
Servicing
Provides procedures for troubleshooting, checking, disassembling, and servicing various tractor systems.
ENGINE
Engine Body
Describes the structure of the engine, including the closed breather system and cylinder head cover.
Governor
Explains the three-lever type fork lever governor system and its operation.
CLUTCH
Structure
Outlines the manual transmission model, detailing components and torque specifications.
Clutch Operation
Explains the engaged and disengaged states of the clutch mechanism.
SERVICING (Clutch)
Troubleshooting (Clutch)
Lists common clutch issues like drags, slips, chattering, rattles, squeaks, and vibrations with causes and solutions.
Servicing Specifications (Clutch)
Provides factory specifications and allowable limits for clutch pedal, disc, plate, and bolt clearances.
Tightening Torques (Clutch)
Lists tightening torques for clutch mounting screws and steering wheel nuts.
Checking, Disassembling and Servicing (Clutch)
Details procedures for checking and adjusting clutch pedal free travel.
TRANSMISSION
Structure
Details the structure of manual and hydrostatic transmissions, including various models and their components.
Front Case
Explains the structure of the front case for HST models and the bi-speed turn linkage.
Bi-Speed Turn Linkage
Describes the linkage mechanism for engaging and disengaging the bi-speed turn system.
Bi-Speed Turn Powertrain
Illustrates the hydraulic circuit for the bi-speed turn system in manual and HST models.
Manual Transmission
Explains the main gear shift section and shuttle gear shift section for manual transmissions.
Hydrostatic Transmission
Details the structure, pump and motor, oil flow, valves, and control linkage of the HST.
Cruise Control
Covers the linkage and operation of the cruise control system for both cabin and ROPS models.
Range Gear Shift Section
Explains the operation and gear teeth counts for the range gear shift system.
Front Wheel Drive Section
Details the front wheel drive lever and shifter mechanism for selecting 2WD or 4WD.
PTO System (Hydraulic PTO Clutch Model)
Describes the structure of the PTO system, including the rear, mid, and independent PTO sections.
PTO System (Mechanical PTO Clutch Model)
Details the PTO system structure, including the one-way clutch, PTO brake, and shifter mechanisms.
Differential Gear System
Explains the function of the differential and differential lock.
Servicing (Transmission)
Covers troubleshooting, specifications, tightening torques, and disassembly/servicing for transmission components.
Troubleshooting (Transmission)
Lists common transmission symptoms like noise, vibration, and loss of power with probable causes and solutions.
Servicing Specifications (Transmission)
Provides factory specifications and allowable limits for various transmission components, including clutches and gears.
Tightening Torques (Transmission)
Lists tightening torques for various transmission mounting bolts and nuts.
Checking, Disassembling and Servicing (Transmission)
Details procedures for checking and adjusting bi-speed turn and HST systems, and disassembling/servicing transmission components.
BRAKES
Linkage
Explains the linkage mechanisms for ROPS and CAB (HST Type) brake systems.
Operation
Describes how the brake body, cam mechanism, and brake discs work together during braking.
Servicing (Brakes)
Covers troubleshooting, specifications, tightening torques, and disassembly/servicing for brake components.
Troubleshooting (Brakes)
Lists common brake issues like uneven braking force, drags, and poor braking force with causes and solutions.
Servicing Specifications (Brakes)
Provides factory specifications and allowable limits for brake pedal free travel, cam plate height, and disc/plate thickness.
Tightening Torques (Brakes)
Lists tightening torques for steering wheel mounting nuts.
Checking, Disassembling and Servicing (Brakes)
Details procedures for adjusting brake pedal free travel and parking brake lever travel.
FRONT AXLE
Structure
Describes the construction of the 4WD front axle, including power transmission and differential function.
Servicing (Front Axle)
Covers troubleshooting, specifications, and tightening torques for front axle components.
Troubleshooting (Front Axle)
Lists common front wheel issues like wandering, lack of drive, and noise with causes and solutions.
Servicing Specifications (Front Axle)
Provides factory specifications and allowable limits for front wheel alignment, axle rocking force, and gear clearances.
Tightening Torques (Front Axle)
Lists tightening torques for various front axle mounting bolts and nuts.
Checking, Disassembling and Servicing (Front Axle)
Details procedures for checking and adjusting toe-in and front axle rocking force, and disassembling/servicing components.
STEERING
Hydraulic Circuit
Illustrates the hydraulic circuit for hydrostatic power steering in manual and HST models.
Steering Controller
Explains the components and operation of the steering controller, including the control valve and metering device.
Steering Cylinder
Describes the single piston, double-acting steering cylinder and its connection to the tie-rods.
Hydraulic Pump
Refers to page 8-M4 for details on the hydraulic pump.
Servicing (Steering)
Covers troubleshooting, specifications, tightening torques, and checking/disassembling/servicing of steering system components.
Troubleshooting (Steering)
Lists common steering issues like hard steering, wandering wheels, and noise with causes and solutions.
Servicing Specifications (Steering)
Provides factory specifications and allowable limits for relief valve, steering cylinder, and piston rod clearances.
Tightening Torques (Steering)
Lists tightening torques for power steering hoses, controller, universal joint, and tie-rod components.
Checking, Disassembling and Servicing (Steering)
Details procedures for checking relief valve and hydraulic pump, and disassembling/servicing steering components.
HYDRAULIC SYSTEM
Hydraulic Circuit
Illustrates the hydraulic circuit for manual and HST transmission models.
Hydraulic Pump
Details the hydraulic pump for 3-point hitch and power steering systems.
Three Points Hydraulic System
Explains the hydraulic circuit, relief valve, and position control valve for the 3-point hitch system.
System Control
Explains the operation of the position control valve for lift, dump, and neutral positions.
Electrical System (Hydraulic)
Covers the electrical circuit, relays, and various switches related to the hydraulic system.
Servicing (Hydraulic System)
Includes troubleshooting, specifications, tightening torques, and procedures for checking, disassembling, and servicing hydraulic components.
Troubleshooting (Hydraulic System)
Lists common hydraulic system symptoms like implement not rising or dropping, and noise with probable causes and solutions.
Servicing Specifications (Hydraulic System)
Provides factory specifications and allowable limits for hydraulic components like pumps, valves, and cylinders.
Tightening Torques (Hydraulic System)
Lists tightening torques for hydraulic system mounting bolts and nuts.
Checking, Disassembling and Servicing (Hydraulic System)
Details procedures for checking hydraulic pump and relief valve, and disassembling/servicing hydraulic components.
ELECTRICAL SYSTEM
Wiring Diagram
Provides wiring diagrams for ROPS (except B3150), B3150 ROPS, and CABIN models.
Engine Starting System and Stopping System
Explains the operator presence control (OPC) system for engine starting and stopping.
Charging System
Details the charging system circuit and the alternator components.
Lighting System
Covers circuits and checks for head lights, turn signals, hazard lights, beacon, brake lights, work lights, and trailer sockets.
Instrument Panel
Explains the Easy Checker™ system, gauges, indicators, error codes, switches, and sensors.
Disassembling and Assembling (Electrical System)
Provides procedures for disassembling and assembling starter and alternator components.
Safety Switch
Details the types of safety switches and their positions related to engine start/stop conditions.
Starter
Covers motor test and magnetic switch test procedures for the starter.
Glow Plug
Explains the function and testing of the glow plug.
CABIN
Outline of Air Conditioning System
Provides an overview of the air conditioning system structure, components, and refrigerant cycle.
Refrigeration System
Details the compressor, condenser, receiver, and expansion valve components of the refrigeration system.
System Control
Explains the operation of the air conditioning system's recirculated/fresh air selection, temperature control, and outlet air flow.
Electrical System (Cabin)
Covers the electrical circuit, relays, and various switches related to the air conditioning system.
Servicing (Air Conditioning)
Includes troubleshooting, specifications, tightening torques, and procedures for checking, disassembling, and servicing the air conditioning system.
Troubleshooting (A/C System)
Lists common air conditioning symptoms like no air flow, no cooling, or insufficient cooling with probable causes and solutions.
Servicing Specifications (A/C System)
Provides factory specifications and allowable limits for A/C components like refrigerant pressure, air gaps, and belt tension.
Tightening Torques (A/C System)
Lists tightening torques for various air conditioning unit mounting bolts and screws.
Precautions at Repairing Refrigerant Cycle
Outlines essential safety precautions and rules for handling refrigerant during system checks and repairs.
Checking and Charging Refrigerant Cycle
Details procedures for checking refrigerant levels using manifold gauges and charging the system.
Checking, Disassembling and Servicing (A/C System)
Covers checking and adjusting the compressor, control panel, blower motor, and other A/C components.
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