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All 462 pages of this Landini Mistral 40 training manual PDF (OEM #3651914M3) focus on one thing: getting your 40 series tractors back to factory condition. Inside, you get full electrical wiring diagrams, complete hydraulic schematics for the rear power lift, and step-by-step overhaul instructions for the mechanical gearbox. Open to the troubleshooting section to track down engine faults and steering pressure drops before tearing anything apart. Lock down the 9-inch clutch to the flywheel with 20 to 25 Nm of torque, and verify the 88 mm cylinder bore before ordering replacement piston rings. Your machine is down, so get the right numbers instead of relying on internet guesses. Grab your tablet, open this bookmarked file, and bring the factory answers right to the shop floor.
What's Inside This Landini MISTRAL 40, MISTRAL 45, MISTRAL 50 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 5-24 | Safety Notes (Personal Risk, Avoid Accidents, Starting, Engine, Electrical Systems, Hydraulic Circuits, Wheels and Tyres, Unhitching and Re-Hitching, Battery, Adjuster Shims, Spinning Shaft Seals, O-Ring Seals, Bearings, Spring Pins, Notes About Spare Parts) |
| Engine | 25-148 | Main Specifications, Driving Torque Values, Specific Equipment, Sections, Lubrication, Cooling and Fuelling Circuit Diagrams, Engine Troubleshooting |
| Clutch | 149-172 | Driving Torque Values, Specific Equipment, Sections, Troubleshooting for the Clutch Assembly, Where the Sealant Is Applied for the Clutch Housing on the Transmission Housing |
| Mechanical Gearbox (12 + 12) and (16 + 16) | 173-202 | Main Specifications of the Gearbox and Final Drive, Main Specifications of Reverse Shuttle, Main Specifications of the Supplementary Final Drive, Driving Torque Values, Sections |
| Rear Differential Housing | 203-228 | Main Specifications of the Bevel Gear Pair and Differential, Driving Torque Values, Sections, Description and Operation, Troubleshooting for the Bevel Gear Pair and Differential |
| Front Axle | 229-264 | Main Specifications, Driving Torque Values, Specific Equipment, Sections, Description and Operation, Troubleshooting for the Front Axle Diff Lock Device |
| Power Take-Off | 265-276 | Main Specifications, Driving Torque Values, Sections, Description and Operation (Power Take-Off: Controlled Directly by the Main Clutch, Synchronized with the Gearbox) |
| Hydraulic Circuits – Rear Power Lift | 277-316 | Main Specifications – Rear Hydraulic Power Lift, Specific Equipment, Sections and Perspective Views |
| Hydraulic Circuits – Auxiliary Control Valves | 317-324 | Main Specifications, Sections, Description and Operation (Circuit, Auxiliary Control Valves, Auxiliary Control Valves Operation) |
| Steering System | 325-338 | Main Specifications, Sections and Exploded Views |
| Brakes | 339-352 | Main Specifications, Driving Torque Values, Sections, Description and Operation (Main Brakes, Parking Brake), Brake System Troubleshooting |
| Electrical System - Instruments | 353-366 | Instruments (Warning Light Identification, Wiring Diagram of Indicator Light Panel Interior, Indicator Lights, RPM Meter and Hour Counter, Fuel Level Gauge, Engine Coolant Temperature Indicator) |
| Electrical System - Components | 367-376 | Control Panel with Analogue Instrument, Light Switch (Turn Indicators, Driving Beam Blinking Function, Side Lights, Driving/Dipped Beams, Horn), Hazard Light Switch |
| Electrical System – Ignition System | 377-386 | Technical Specifications, Description and Operation, Troubleshooting |
| Electrical System – Recharging System | 387-396 | Technical Specifications, Description and Operation (Alternator, Alternator Operation) |
| Electrical System - Battery | 397-408 | Technical Specifications, Description and Operation, Battery Splitting - Remounting, Maintenance and Battery Inspection (Relative Density) |
| Electrical System – Electrical Circuits | 409-462 | Electrical System Components, Tractor – Component Locations, Control Panel – Component Locations, Locations of Fuses and Relays (Fuse Box, Fuse Box Location), Fuses, Maxi Fuses |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Fuel tank capacity | 40 dm³ (liters) | p. 43 |
| Cylinder Head Fixing Bolts Torque | 85.3 ÷ 91.2 Nm | p. 41 |
| Clutch Unit Fixing Screws to Flywheel Torque | 20 ÷ 25 Nm | p. 151 |
| Rear Differential Bevel Gear Pair Gear Ratio | 1:4.88 | p. 205 |
| Front Axle Maximum Steering Angle | 55° | p. 231 |
| MISTRAL 45, MISTRAL 50 | ||
| Extractor tool for the centrifugal weights of the injection governor Mistral 45/50 | 009 MT MIS | p. 42 |
| MISTRAL 40 | ||
| Engine Bore | 88 mm | p. 29 |
| Engine Maximum Torque | 105 Nm | p. 29 |
| MISTRAL 45 | ||
| Engine Bore | 84 mm | p. 30 |
| Engine Maximum Torque | 122 Nm | p. 30 |
Landini MISTRAL 40, MISTRAL 45, MISTRAL 50 Common Problems This Manual Covers
Landini Mistral 45 triangle warning light stays lit on the dash panel during operation
Check battery terminals for corrosion and tighten connections first. Test alternator output with a multimeter at the B+ terminal; page 389 lists a maximum alternator output of 40 A. Readings well below that value point to a failing regulator or worn brushes. Clear the fault code and confirm the triangle light resets after the repair.
Manual Section: Electrical System – Recharging System p. 389Hydraulic system fails to lift the load or lurches jerkily when raising the three-point hitch
Check hydraulic fluid level and inspect the filter for clogging before suspecting the pump. Drain and replace contaminated fluid, then bleed the circuit. The rear power lift is rated for 1200 kg lifting capacity per page 279; if it struggles well under that rating, remove the pump and check for worn gears.
Manual Section: Hydraulic Circuits – Rear Power Lift p. 279Engine runs hot and loses power under load especially in high ambient temperatures
Start with the troubleshooting flow: clean radiator grilles and check coolant level first, since a clogged core is the top cause of overheating. Verify the air filter isn't restricted and check crankcase oil level. If a head gasket leak is suspected, torque the cylinder head bolts to 85.3 to 91.2 Nm per page 41.
Manual Section: Engine Troubleshooting p. 41Water contamination shows up in the fuel circuit after filling from an unfamiliar source
Drain the water-fuel separator at the first sign of moisture instead of waiting for a scheduled service. Empty the fuel tank if contamination is heavy; capacity is 40 dm³ per the spec on page 43. Refill only from a clean, sealed source and prime the injection system before restarting to avoid injector damage.
Manual Section: Engine p. 43Engine cranks slowly and struggles to start in cold morning weather conditions
Check the ignition troubleshooting section starting on page 377: verify battery charge, connections, and valve play before condemning the starter. Test the starter motor draw against its 1.2 kW power rating listed on page 379. Replace worn glow plugs as a set, not individually, since one weak plug drags down cold-start performance for the whole bank.
Manual Section: Electrical System – Ignition System p. 379Frequently Asked Questions
What is the torque specification for the clutch plate bolts on Landini Mistral 40?
The screws used to fix the 9”/9” clutch to the flywheel should be tightened to a torque of 20 ÷ 25 Nm (2 ÷ 2.5 kgm). This specification ensures proper assembly of the clutch unit to the flywheel. p. 151
What are the replacement specifications for Air filters?
The Landini Mistral tractors are equipped with a 5" dry filter that has two removable elements for air cleaning. However, this manual does not provide specific replacement intervals or part numbers for the air filters. p. 32
What are the replacement specifications for Hydraulic filters?
The steering system, which is a hydraulic circuit, utilizes a cartridge filter on the intake with a filtering degree of 40 µm. However, the manual does not specify replacement intervals or particular part numbers for this hydraulic filter. p. 327
What is the recommended lubricating oil capacity for the engine of the Landini Mistral 40?
For the Landini Mistral 40 engine, the lubricating oil reservoir has a capacity of 4.7 liters. The specific type of recommended lubricating oil can be found in section 100 of this manual. p. 29
What is the specified valve play adjustment for intake and exhaust valves when the engine is cold?
When the engine is cold, the assembly play between the intake and exhaust valves and their respective tappets should be adjusted to 0.15 ÷ 0.25 mm. This precise adjustment is critical for optimal engine performance. p. 34
Is this Landini Mistral 40 manual a digital download?
You get a 462-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Are there any print restrictions on this Landini Mistral 40 manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
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