🏷️ Basic Information

Make:

Yanmar

Model:

YM155 / YM155D

Vehicle Type:

Compact Tractor

Product Name:

Yanmar YM155 YM155D Tractor Workshop Service Repair Manual PDF Download

👋 Introduction

Target Audience:

Owners, operators, and maintenance technicians of Yanmar YM155 and YM155D tractors.

Value Proposition:

Provides essential, factory-accurate repair and maintenance information, saving costs compared to professional service or replacement parts.

Manual Features:

Hundreds of pages, detailed substeps, notes/cautions/warnings, numbered instructions, bold figure numbers, detailed illustrations/drawings/photos, enlarged insets, numbered table of contents, combined troubleshooting and electrical service with wiring diagrams.

📋 Manual Details

Covered Models:

Yanmar YM155, YM155D

Applicable Years:

Not specified, but generally covers the production run of these models.

Estimated Pages:

Hundreds (exact count not provided in product information, but implies comprehensive coverage).

Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine And Fuel:

Engine, Diesel Fuel System

Drivetrain:

Transmission, Clutch, Final Drive, Rear Axle, Main Drive Bevel Gears and Differential, Differential Lock, Front-Wheel Drive (if applicable)

Brakes And Steering:

Brakes, Park Brake, Steering Gear, Power Steering System

Hydraulic And Pto:

Hydraulic System, Power Take-Off (PTO)

Electrical And Body:

Electrical System, Cab, Fenders, Fuel Tank & Platform, Front System

Maintenance And Troubleshooting:

General maintenance, diagnostics, troubleshooting, preventative maintenance.

Repair And Overhaul:

Complete disassembly and reassembly of all major components and systems.

Electrical Diagnostics:

Detailed wiring diagrams, troubleshooting procedures for electrical systems.

Depth:

Comprehensive factory-level repair and service information suitable for experienced mechanics and skilled DIYers.

📊 Manual Specifications

Format:

PDF

Compatibility:

Windows and Mac OS

Printability:

Printable without restriction, allowing users to print the entire manual or specific pages.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

Method:

Instant Download Link upon payment completion.

Software:

Adobe PDF Reader

⚙️ Engine Specifications

Engine Model Typically Used:

Likely Yanmar 3TNA series diesel engine (e.g., 3TNA72 or similar, specific to YM155 variants). Exact model number would be detailed within the manual.

Estimated Horsepower:

Approximately 15-20 HP (specific figures vary by exact engine variant and model configuration).

Displacement Estimated:

Likely around 1.0 - 1.5 Liters (3 cylinders).

Fuel Type:

Diesel

Injection Type:

Direct Injection (typical for Yanmar small diesel engines).

🔧 Transmission

Transmission Type:

Manual Transmission with High/Low range (common for this class of tractor).

Drive Options:

YM155D variant typically indicates a 4WD (Four-Wheel Drive) option.

Gear Configurations:

Likely a combination of synchronized gears for forward travel and a reverse gear. The manual will detail specific gear ratios.

📐 Dimensions

Overall Length:

Specific dimensions would be detailed in the manual, but generally compact for its class.

Wheelbase:

Specific dimensions would be detailed in the manual.

Operating Weight:

Typically in the range of 1000-1500 kg (2200-3300 lbs), depending on configuration. Exact weight is in the manual.

🛡️ Safety Features

Rollover Protection:

ROPS (Roll-Over Protective Structure) typically present or an option. Manual will confirm and provide installation/maintenance if applicable.

Braking System:

Wet disc brakes (common for durability) and a separate parking brake mechanism.

Operator Station:

Basic operator station with handrails and footrests. Manual will cover safety aspects of the cab/platform.

💡 Technology Features

Features:

Basic tractor functionality. No advanced infotainment systems expected on this model.

Features:

Primarily mechanical systems. Power steering may be present on some variants.

Features:

N/A

🔧 Maintenance

Engine Oil Change:

Typically every 50-100 operating hours or annually, depending on usage. The manual will specify the exact interval and oil type.

Air Filter Maintenance:

Check and clean/replace as needed, especially in dusty conditions. Interval specified in manual.

Transmission Oil Change:

Refer to manual for specific interval, typically around 200-400 hours.

Engine Oil Type:

Likely a SAE 10W-30 or 15W-40 diesel engine oil, meeting API CD or higher specifications. Manual will confirm.

Hydraulic Fluid Type:

Typically a Universal Tractor Transmission Oil (UTTO) or a hydraulic oil meeting specific Yanmar specifications. Manual is critical here.

Coolant Type:

Ethylene Glycol based antifreeze/coolant mixture. Manual will specify concentration and type.

Common Wear Items:

Fuel injectors, glow plugs (for cold starting), hydraulic pump seals, clutch wear, PTO clutch engagement issues.

Electrical Common Problems:

Wiring harness degradation, starter motor issues, battery terminal corrosion.

Importance Of Specs:

Manual contains crucial torque specifications for engine, drivetrain, and hydraulic components to ensure proper assembly and prevent damage.

📚 Vehicle History

Manufacturer:

Yanmar Co., Ltd. is a Japanese manufacturer known for its wide range of diesel engines, agricultural machinery, construction equipment, and marine engines.

Ym Series Context:

The YM series represents Yanmar's line of compact and utility tractors, often favored for their reliability and efficiency in smaller-scale farming and property maintenance.

Production Era:

The YM155/YM155D models were likely produced in the late 20th century, common in the 1980s and 1990s.

🏆 Awards & Recognition

Manufacturer Reputation:

Yanmar is a globally recognized and respected manufacturer known for the durability and longevity of its diesel engines and machinery.

User Satisfaction:

Generally high user satisfaction for Yanmar compact tractors due to reliability and ease of maintenance.