Target Audience:
Owner-operators, farm mechanics, agricultural repair shops, and service technicians working on Belarus MTZ tractors.
Value Proposition:
Provides essential repair and maintenance knowledge for reliable operation and longevity of widely used MTZ tractor models, often in regions where direct manufacturer support may be limited.
Repair Guidance:
Detailed, step-by-step instructions described as showing a 'very good way' for performing various repairs, emphasizing practical application.
Engine Systems:
Engine overhaul, fuel injection system (pumps, injectors), cooling system, lubrication system, intake and exhaust systems, engine diagnostics and repair.
Drivetrain Systems:
Clutch, gearbox (transmission), final drives, differential, PTO (Power Take-Off) systems, hydraulic systems (hitch, steering, implement control).
Chassis And Suspension:
Front axle, rear axle, steering system, braking system (mechanical and hydraulic), wheel assemblies, hitch and drawbar systems.
Electrical Systems:
Wiring diagrams, starter motor, alternator, battery, lighting system, instrumentation, electrical component testing and repair.
Operator Station:
Cabin interior, controls, seating, safety features, HVAC (if applicable).
Maintenance Procedures:
Regular servicing, lubrication points, filter replacement, fluid changes, scheduled maintenance tasks.
Repair Procedures:
Step-by-step disassembly, assembly, and repair instructions for all major components and systems. Includes engine rebuild, transmission overhaul, hydraulic system repairs.
Troubleshooting:
Diagnostic charts, common problem identification, symptom-based troubleshooting guides for engine, transmission, hydraulics, and electrical issues.
Technical Specifications:
Detailed specifications, tolerances, torque values, fluid capacities, electrical resistance values, and performance data.
Depth Of Coverage:
Comprehensive, covering from basic maintenance to complete engine and component overhauls. Suitable for professional mechanics and experienced owner-operators.
File Type:
PDF (Portable Document Format)
Searchability:
Likely text-searchable if created from scanned documents with OCR, but quality may vary.
Printability:
Typically printable, allowing users to create physical copies of specific sections or the entire manual.
Image Resolution:
Variable; depends on the original source. Diagrams and illustrations are critical and should be clear.
Digital Binding:
N/A (Digital Format)
Digital Paper Type:
N/A (Digital Format)
Engine Family:
Belarus MTZ D-series (e.g., D-50, D-240, D-260)
Mtz 50 Engine Displacement:
4.75 Liters (4750 cc)
Mtz 50 Engine Horsepower:
Approximately 50-55 HP (gross)
Mtz 80 Engine Displacement:
4.75 Liters (4750 cc) - commonly D-240
Mtz 80 Engine Horsepower:
Approximately 75-80 HP (gross)
Mtz 90 Engine Displacement:
Likely 5.86 Liters (5860 cc) - commonly D-260.2
Mtz 90 Engine Horsepower:
Approximately 90-95 HP (gross)
Fuel System Type:
Direct injection, typically with inline or distributor-type fuel injection pumps (e.g., from MZkt or YaMZ).
Injector Pressure:
Specific to engine model; requires manual reference.
Transmission Type:
Manual, constant-mesh, sliding gear transmission with a dry clutch.
Number Of Gears:
Typically 16 forward and 8 reverse gears (with creeper gear options).
Gearbox Lubricant Type:
GL-4 or GL-5 gear oil, SAE 80W-90 or 85W-140, depending on climate. Capacity approx. 12-15 liters. Specifics in manual.
Clutch Type:
Two-stage dry friction clutch (single main clutch for drivetrain, separate PTO clutch).
Wheelbase Mtz80:
Approx. 2450 mm (96.5 inches)
Overall Length Mtz80:
Approx. 3700 mm (145.7 inches)
Overall Width Mtz80:
Approx. 1970 mm (77.6 inches)
Track Width Rear Mtz80:
Adjustable, typically 1400-1800 mm (55-71 inches)
Operating Weight Mtz80:
Approx. 3650 kg (8047 lbs)
Rollover Protection Standard:
ROPS (Roll-Over Protective Structure) may be optional or standard depending on the market and year of manufacture. Manual should detail installation and inspection.
Braking System Type:
Dry, mechanical disc brakes on rear wheels. Some models may have optional hydraulic or air brakes. Manual covers operation and maintenance.
Operator Safety:
The manual likely details safe operating practices, pre-operation checks, and emergency procedures relevant to agricultural machinery.
Infotainment Features:
Generally basic on these models. May include a radio/cassette player on later variants. Manual focuses on operational systems, not entertainment.
Driver Assistance Systems:
Limited to mechanical and hydraulic systems. No electronic driver aids like ABS or traction control found on modern tractors.
Connectivity Options:
N/A - These tractors predate widespread digital connectivity in machinery.
Engine Oil Change Interval:
Typically every 250 hours or annually. Specific API classification (e.g., CD/CE) and viscosity (e.g., 15W-40) will be detailed in the manual.
Hydraulic Oil Change Interval:
Typically every 500-1000 hours. Manual will specify oil type (e.g., UTTO, ATF) and filter change intervals.
Air Filter Maintenance:
Frequent inspection and cleaning, especially in dusty conditions. Replacement interval based on service meter or condition.
Engine Oil Type:
Diesel engine oil, API CD/CE or higher, SAE 15W-40 recommended for most operating temperatures. Manual is definitive.
Coolant Type:
Ethylene glycol based antifreeze mixture with distilled water (50/50 ratio). Manual specifies type and capacity.
Transmission Hydraulic Oil:
Hydraulic Universal Tractor Transmission Oil (UTTO) or compatible fluid. Manual specifies viscosity grade (e.g., 10W-30, 80W-90) and capacity.
Common Wear Points:
Clutch wear, PTO bearing issues, hydraulic pump and cylinder leaks, front axle kingpin wear, starter motor and alternator reliability can be points of maintenance.
Electrical System Quirks:
Older models may have less robust wiring harnesses. Proper grounding and insulation are crucial. Manual provides diagnostic procedures.
Manufacturer Origin:
Minsk Tractor Works (MTZ), established in 1946 in Minsk, Belarus (formerly part of the Soviet Union).
Mtz 50 Introduction:
Introduced in 1961, it was a highly successful and widely exported tractor, forming the basis for subsequent models.
Mtz 80 Introduction:
Introduced in 1974, the MTZ-80 (and its 4WD variant MTZ-82) became one of the most produced tractors globally, featuring significant upgrades in power, comfort, and hydraulics over the MTZ-50.
Mtz 90 Introduction:
Represents a later generation or higher horsepower variant, often with more powerful engines (like the D-260 series) and updated features, reflecting evolutionary development.
Production Volume:
MTZ tractors, particularly the 80/82 series, have been produced in millions, making them among the most common agricultural machines worldwide.
Global Recognition:
MTZ tractors are renowned for their ruggedness, simplicity, and affordability, making them a staple in agricultural operations worldwide, particularly in Eastern Europe, Africa, Asia, and parts of South America.
