Filter

Kubota U17-3a Excavator Workshop Repair Manual

Kubota U17, U17-3 Excavator Workshop Repair Manual

Kubota U17, U17-3 Excavator Workshop Repair Manual

$34.00

🚜 Equipment
Brand	KUBOTA
Type	Excavator
Model	U17, U17-3
📄 Documents
Language	English
Format	PDF
Title	Model	Publication No.	Pages
Repair Manual	U17, U17-3	3378721M2	722
Operators Manual	U17, U17-3	3378755M2	97

The Kubota U17 and U17-3 Mini Excavators are ultra-compact zero-tail swing machines designed for precision digging, maneuverability, and productivity in confined spaces. Built with durable Kubota diesel engines and advanced hydraulic systems, they provide dependable performance for landscaping, utilities, and construction applications where access and efficiency are critical. With an operating weight of around 1.65–1.70 tonnes, these models deliver strong digging forces while remaining easy to transport and operate in narrow work areas.

The U17 is powered by a Kubota diesel engine rated at approximately 17 hp, achieving a digging depth of 2.31 m and a bucket breakout force of around 1,550 kgf. Its adjustable track width (from 990 mm to 1,240 mm) allows access through narrow passageways while maintaining stability during excavation. The U17-3, an updated model, builds on the same compact platform with improvements in hydraulic efficiency, ergonomics, and safety features. Both machines feature zero-tail swing for safe operation in confined spaces, smooth travel motors, and responsive auxiliary hydraulics for attachment versatility.

The workshop repair manual provides complete coverage of these models, including safety measures, body and engine identification, maintenance intervals, machine body servicing, hydraulic system mechanisms, and electrical system troubleshooting. It details the Kubota Intelligent Control System (KICS), auto-idling functions, hydraulic testing, troubleshooting charts, and wiring diagrams. Comprehensive disassembly and reassembly procedures are supported with torque specifications, lubrication schedules, and inspection standards to ensure precise maintenance and long service life.

Key Highlights

U17/U17-3: Operating weight ~1,650–1,700 kg
Engine power: ~17 hp Kubota diesel engine
Digging depth: ~2.31 m; Reach: ~3.9 m
Bucket breakout force: ~1,545–1,550 kgf
Adjustable track gauge: 990 mm to 1,240 mm for confined access
Zero-tail swing design for improved maneuverability and safety
Auxiliary hydraulics for versatile attachment use
ROPS/TOPS canopy with ergonomic controls for operator comfort
Workshop manual includes hydraulic and electrical schematics, torque values, and troubleshooting guides
Coverage of engine, hydraulics, control valves, travel/swing motors, and Kubota Intelligent Control System (KICS)

Title	Repair Manual, Operators Manual

Table of Content

📙 Table of Contents – Publication Number 3378721M2

Wsm U17_U17-3

WSM U17_U17-3
- CONTENTS
- I . GENERAL
  - (A) BODY AND ENGINE IDENTIFICATION MARKS
  - (B) SAFETY PRECAUTIONS FOR SERVICING, DISASSEMBLY AND REASSEMBLY
    - a) Safety Measures Before Starting Work
    - b) Safety Measures During Work
    - c) Preparation for Disassembly
    - d) Precautions for Disassembly and Reassembly
  - (C) IMPORTANT SAFETY PROCESS AND CRITICAL FUNCTIONAL PROCESS
  - (D) IMPORTANT INSPECTION ITEMS AFTER REASSEMBLING
    - a) Piping
  - (E) MAINTENANCE INTERVALS
    - a) EU-version
    - b) PP (KTC, KCL)-version
    - c) KTA-version
    - d) Hydraulic Oil Check for Machines with Hydraulic Breakers
    - e) Maintenance Items
    - f) Troubleshooting for Operators
    - g) Periodic Replacement of Important Component Parts
    - h) Recommended Oils
    - i) Lifting Capacity
  - (F) PRODUCT INFORMATION
    - a) U17-3a, U17, U17-3 Development Concept
    - b) Why Minor Change?
    - c) Quick Chart
    - d) Major Sales Feature
    - e) Specifications Comparison
- II . MACHINE BODY (Mechanism Section)
  - (A) MACHINE SPECIFICATIONS
    - a) Major Dimensions and Working Range (with Rubber Crawler)
    - b) Dimensions
    - c) Main Specifications
    - d) U17-3a vs U17/U17-3
  - (B) MACHINE BODY STRUCTURE AND FUNCTION
    - a) Overall Arrangement
    - b) Under Carriage Components
- II . MACHINE BODY (Service Section)
  - (A) SPECIFICATIONS
    - a) Machine Weight
    - b) Main Specifications
    - c) Lever Stroke and Operating Force
    - d) Dimensions of Parts
    - e) Quality Specifications
  - (B) FRONT ATTACHMENT
    - a) Pin, Bush and Shim Installation
    - b) Instruction to Press in the Bushing
    - c) Greasing Points
  - (C) UPPER STRUCTURE
    - a) Swivel Bearing
    - b) Travel Lever
    - c) Accelerator Lever
    - d) Dozer Lever
    - f) Swing Pedal
    - g) Service Port Pedal
    - h) Pilot Control Valve
    - i) Limit Switch Installation
    - j) Seat and Seat Belt
    - k) Wrist Rest
    - l) Canopy
    - m) Weight
  - (D) UNDERCARRIGE
    - a) Track Tension Device
    - b) Track Roller
- III . ENGINE (Mechanism Section)
  - (A) ENGINE SPECIFICATIONS
  - (B) NEW EMISSIONS CONTROL ENGINES
    - a) Outline
    - b) Engine List for Minor Change
    - c) Engine Features
- III . ENGINE (Service Section)
  - (A) ENGINE ACCESSORIES
    - a) Engine Mount
    - b) Air Cleaner
    - c) Radiator
    - d) Thermostat
    - e) Muffler
    - f) Pump Coupling
    - g) Fuel Tank
    - h) Fuel Hoses
    - i) Engine Outlook
  - Engine WSM : SM-E3B SERIES
- IV . HYDRAULIC SYSTEM (Mechanism Section)
  - (A) HYDRAULIC SYSTEM
    - a) Main Pump
    - b) Control Valve
    - c) Swivel Motor
    - d) Travel Motor (Wheel Motor)
    - e) Pilot Valve (Remote Control Valve)
    - f) Unload Valve
    - g) Selector Valve
    - h) Accessories of Hydraulic Components
    - i) Service Port System
    - j) TPSS (Two Pattern Selection System) : PP – version
    - k) Hydraulic Components Layout: U17-3a, U17/U17-3
    - l) Hydraulic Circuit Diagram
- IV . HYDRAULIC SYSTEM (Service Section)
  - (A) TROUBLESHOOTING
    - a) Common Circuit
    - b) Hydraulics
    - c) Pump
    - d) Motor
    - e) Swivel Performance
    - f) Traveling Performance
  - (B) TESTING
    - a) Testing Instruments & Special Tools
    - b) Pump Flow
    - c) Pressure Measurement
    - d) Drain Measurement
    - e) Measurement of Block Performance
    - f) Operating Speed
    - g) Straight Travel Performance
    - h) Swivel System Diagnosis
    - i) Travel System Diagnosis
    - j) Cylinder natural fall amount
    - k) Control and Traveling lever operating force
    - l) Lever stroke
  - (C) SPECIFICATIONS
    - a) Pump Specifications
    - b) Relief Valve
    - c) Swivel Performance
    - d) Traveling Performance
    - e) Cylinder
    - f) Service Port Flow Amount
    - g) Motor Oil Drain Amount Test Sample
  - (D) DISASSEMBLING AND REASSEMBLING
    - a) Pump
    - b) Control Valve
    - c) Pilot Valve
    - d) Swivel Motor
    - e) Rotary Joint
    - f) Travel Motor
    - g) Cylinder
    - h) Change Valve (Dozer, Track)
    - i) Unload Valve
    - j) Accumulator
    - k) Oil Tank
    - l) Third Line
    - m) TPSS Valve (PP-version Only)
    - n) Hydraulic Hose
- V . ELECTRICAL SYSTEM (Mechanism Section)
  - (A) GENERAL
    - a) New Functions of Electrical System
  - (B) KUBOTA INTELLIGENT CONTROL SYSTEM (KICS)
    - a) Features of Digital Meter
    - b) Operating Mode
    - c) Servide Mode Menues
    - d) Auto Idoling (AI) Control System
    - e) Main Component’s Function
    - f) Failure Diagnosis
    - g) Service Mode Flow Chart
    - h) Electrical Component Layout
    - i) Electric Circuit Diagram, EU – version
    - j) Electric Circuit Diagram, PP – version
    - k) Electrical Wiring Diagram, EU – version
    - l) Electrical Wiring Diagram, PP – version
- V . ELECTRICAL SYSTEM (Service Section)
  - (A) TROUBLESHOOTING
    - a) General
    - b) Engine
    - c) Panel Relevant (Key Switch: ON)
    - d) Panel Relevant (Engine Starting)
    - e) Others
  - (B) TROUBLE/ALARM DISPLAYS AND CHECKPOINTS
    - a) Quick Diagnosis
    - b) Kubota I.C.S. Navigation List of Messages
  - (C) INSPECTION
    - a) Coupler Check
    - b) Components Check
    - c) Fuse Inspection
    - d) Harness Check
    - e) Battery Check
    - f) Measuring Instruments and Special Tools
  - (D) WIRE HARNESS INSTALLATION
    - a) Precautions in Clamping the Electrical Cabling
    - b) Harness Layout, Overview
    - c) Engine Room
    - d) Engine’s Top
    - e) Cabling the Unload and Horn Switch
    - f) Routing the Front Electrical Cables
    - g) High-speed Switch, Horn
    - h) Electrical Cabling (Engine Room, Fuel Sensor)
    - i) Electrical Cabling Route (Unload, Horn)
    - j) Electrical Cabling (Horn and Dual-speed Wire Harnesses in Right-hand Console)
  - (E) MAIN COMPONENTS MAINTENANCE
    - a) Checking the Fuses
    - b) Checking the Battery
    - c) Checking the Horn
    - d) Checking the Glow Relay
    - e) Glow Plug
    - f) Unload Safety Switch
    - g) Hi-Low Travel Switch
    - h) Checking the Solenoid Valve
    - i) Checking the Fuel Pump
    - j) Checking the Fuel Sensor
    - k) Engine Stop Solenoid and Coil Commander
    - l) Checking the Water Temperature Gauge
    - m) Oil Switch
    - n) Relay
    - o) Installation of Canopy Light for KTA
- Conversion Tables

Specification

Specification	Kubota U17 Mini Excavator	Kubota U17-3 Mini Excavator
Operating Weight	~3,704 lb (~1,680 kg)	~1,650 kg (rubber) / ~1,700 kg (steel)
Engine Power	~17 hp (approx. 16.1 hp gross / 15.2 hp net) :contentReference[oaicite:0]{index=0}	~16 hp (11.8 kW) :contentReference[oaicite:1]{index=1}
Max Digging Depth	~7 ft 7 in (~2.31 m) :contentReference[oaicite:2]{index=2}	~2.31 m :contentReference[oaicite:3]{index=3}
Breakout Force (Bucket)	~3,417 lb (~1,550 kgf) :contentReference[oaicite:4]{index=4}	~1,545 kgf (~15.2 kN) :contentReference[oaicite:5]{index=5}
Auxiliary Hydraulic Flow	~11.9 GPM (~45 L/min) :contentReference[oaicite:6]{index=6}	~27.7 L/min (~7.3 GPM) :contentReference[oaicite:7]{index=7}
Transport Dimensions (Length × Width)	Length ~11 ft 7 in; Width (retracted/extended) 3 ft 3 in–4 ft 1 in :contentReference[oaicite:8]{index=8}	Length 3.55 m; Width 0.99 m / 1.24 m :contentReference[oaicite:9]{index=9}

Buyer Questions & Answers

Frequently Asked Questions❔

Are the manuals OEM (Original Equipment Manufacturer)?

Yes, we only provide manuals that are sourced from the machine manufacturer or authorized dealers.

What file format are the manuals in?

All manuals are provided in PDF format, which you can be open on your browser, computer, smartphone, or tablet.
Printed versions are available for select manuals — check the product page or contact us for availability.

Is the manual printable?

Yes, all pages are printable.

Where do I download the manual after I have paid for it?

You’ll receive two emails:
- “Your order XXXXX has been received!” – sent immediately.
- “Your order XXXXX is now completed.” – sent within 12 hours with your secure download link.
If you didn’t get the email:
- ✅ Log In to your Account and check your orders.
- 📂 Check your spam/junk folder.
- 📧 Make sure you didn’t use a different email during checkout.

Still have questions?