Kubota KX121-3S Mini Excavator Manuals

Manuals and User Guides for Kubota KX121-3S Mini Excavator. We have 1 Kubota KX121-3S Mini Excavator manual available for free PDF download: Workshop Manual

Kubota KX121-3S Workshop Manual

Kubota KX121-3S Workshop Manual (207 pages)

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Brand: Kubota | Category: Excavators | Size: 16 MB

Table of Contents

Table of Contents
3
Sales Engineering Section
4
Kx91-3S, Kx91-3 , Kx101-3 , U35S, U35-3S, U35-3
5
I Sales Engineering Section
5
Quick Feature Chart
5
- Kx121-3S, Kx121-3 , Kx161-3S, Kx161-3 , U45-3S, U45-3
  6
- Feature Discriptions (Super Series)
  7
New Innovations
9
- Main Machine Specifications
  10
- Specifications: Super Series (KTC, KCL, KTA-Version)
  10
- Dimensions
  11
- Lifting Capacity
  11
- Working Range
  11
- Service Engineering Section
  12
- General Outline
  13
- New Engineering Points
  13
- Photos of Main Modified Parts
  14
- Major Specifications Incorporated
  15
- Quantity Water and Oil
  16
- Quality Specifications
  17
Service Engineering Section
18
- KX121-3S, 161-3S: KTC, KCL, KTA Version
  25
- Machine Specification: Service Port, TPSS, Arm Rest, Long Arm, 4 Postcanopy, KTC-Bucket
  25
Finger Control Service Port System
33
Hydraulic System Modification
69
Hydraulic Circuit Diagram
103
- KX91-3S: KTC-Version
  105
- KX91-3S: KCL, KTA-Version
  106
- KX91-3 : EU-Version
  107
- KX101-3: EU-Version
  108
- U35S: KTC-Version
  109
- U35-3S: KTA-Version, U35S: KCL-Version
  110
- U35-3: EU-Version
  111
- KX121-3S: KTC, KCL-Version
  112
- KX121-3S: KTA-Version
  113
- KX121-3 : EU-Version
  114
- KX161-3S: KTC, KCL, KTA-Version
  115
- KX161-3: EU-Version
  116
- U45-3S: KTA-Version
  117
- U45-3: EU-Version
  118
- Hydraulic Components Layout: KX91-3S , KX101-3S , U35S, U35-3S
  119
- Hydraulic Components Layout: KX121-3S , KX161-3S
  120
Engine Upgrade
121
- Engine Specifications
  121
- General
  121
- Engine Electric Components
  122
- Engine Performance Curve
  123
- Engine Performance of KX161-3 Super Series V2403 Vs V2203
  125
- Electrical System
  126
- Background of Adoption of New Meter
  127
- Development Concept
  127
- Operating Mode
  133
  - LCD Display List
    134
  - Operating Mode Menu List
    134
  - Caution and Warning Indications
    135
  - Service Mode Flow Chart
    136
- Service Mode Menues
  136
  - Main Menues and Functions
    137
  - Selection Method of 11 Languages (EU-Version Only)
    137
  - Calculation Method
    138
  - Tester Mode
    138
  - Deletion of Fail Record
    139
  - Fail Recoord Dump
    139
  - Machine Model Setup
    140
  - Overheat Set-Up
    141
  - Simple Mode Set-Up - Chinese-Version Only
    141
  - Harness Check Mode
    142
  - All Fail Record
    143
  - EEPROM Read
    143
  - LCD Inspection
    143
  - Service Hour Meter
    144
  - Service Hour Meter with North American Specifications
    144
  - Servive Hour Meter Check
    145
  - Servive Hour Meter Delete
    145
  - Set-Up Time
    145
  - Software Version
    145
  - Auto Glow Control
    146
  - Cooling Water Temperature Vs. Glow Time
    146
  - Graph of Water Temperature Vs. Glow Time
    146
  - Key-ON Processing
    146
  - Glow Control (Others)
    147
  - Glow ON/OFF Conditions
    147
  - Refreshment Cycle of Number of Dots
    147
  - Relationship between Water Temperature and Dots
    147
  - FYI (for Your Information)
    148
  - Travel High - Low Switch Control
    149
  - Circuit Diagram & Function(Fuel Sensor)
    150
  - Fuel Amount Control
    150
  - Fuel Shortage Alarm
    150
  - Voltage and Fuel Map
    150
  - Meter Display
    151
  - Fuel Replenishment Assist Function
    152
  - Starter Auto Release Control
    153
  - Service Mode Menu List
    154
- New Auto Idling (AI) Control System
  156
- Purpose
  156
- Auto Idle Function Mechanism
  156
- Trouble Cases
  156
Electrical System
156
- Interlocked with Anti Theft
  157
- Interlocked with Lever Lock
  157
- New Auto Idling Modification
  157
- AI Function Layout
  158
- Operating Chart
  158
- Behavior When the Control Lever Is Returned to Neutral
  159
- Behavior When the Control Lever Is Operated
  160
- AI Motor Normal-Turn Circuit
  161
- AI Motor Reverse-Turn Circuit
  162
- AI Motor Returning Function
  163
- Function Chart
  163
- Function Diagram
  164
- Idle-Up Control
  164
- Compressor Control
  165
- Engine Speed Sensor
  167
- Governor Sensor
  168
- Accel Sensor (Electric Accelerator)
  169
- AI Pressure Switch
  170
- Function
  170
- Switch Specifications
  170
- Auto Release Circuit Diagram & Function
  171
- Auto Release Function
  171
- Main Component’s Function
  171
- If Engine Does Not Start
  172
- Trouble Shooting
  172
- Operational Flow Chart
  173
- Travel Hi-Speed Control Circuit
  176
- Meter Panel (Controller Unit)
  177
- Failure Diagnosis
  178
  - Failure Display and Diagnosis Criteria
    178
  - Error Storage Method
    180
  - Fail Record in EEPROM
    180
  - Number of Errors
    180
  - Address and Contents of EEPROM
    181
  - Erasing Method of Error Log
    181
  - Operation Procedure
    183
  - Self-Diagnosis of Controller Unit
    183
  - Failure Display Number of Self-Diagnostic Function
    186
  - Self - Diagnosis of Controller, Items and Methods
    186
  - Check Sum Error
    188
  - Functions of Self-Diagnostic Harness
    189
- Service Mode Flow Chart
  190
- What Should You Do in the Following Case?
  191
- Component Layout
  197
- Circuit Wiring Diagram
  200
- Kx91-3S, 101-3, 121-3S, 161-3S, U35S, U35-3S, U45-3S, (S/P, Ai)
  200
- KX91-3S, U35S, U35-3S: PP - Version
  201
- KX91-3, 101-3, U35-3: EU - Version
  202
- KX121-3S, 161-3S, U45-3S: EU and PP - Version
  203

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