Blog category
Knowledge Base
Practical knowledge for owners of mini tractors and compact machines. From buying advice and maintenance to troubleshooting and seasonal tips — everything you need to keep your tractor running reliably for years to come.
06/07/2026
Maintenance of the Mitsubishi K4: engine oil, oil filter, fuel and air filter, valve clearance 0.25 mm, V-belt tension and injection timing — with all intervals.
06/07/2026
Overhauling the Mitsubishi K4: head gasket selection, head bolt torque and sequence, valve, crankshaft and connecting rod dimensions, and all torque values from the workshop manual.
06/07/2026
Mitsubishi K4 cooling: how the water pump, thermostat and radiator work and how to prevent overheating — with the diagnostic sequence from the workshop manual.
06/07/2026
Mitsubishi K4 fuel and injection: Bosch M-pump, nozzles (opening pressure 220 kg/cm²), bleeding the system, preheating times and the correct starting procedure.
06/07/2026
Mitsubishi K4 faults: hard starting, white/blue/black smoke, power loss, overheating, and low oil pressure — with known practical problems and solutions.
06/07/2026
Buying a Yanmar RS-240, RS-270, RS-300 or RS-330? Read the experiences, strengths and weaknesses, the engine difference between the models, and what to look out for with a used one.
06/07/2026
All technical specifications of the Yanmar RS-240, RS-270, RS-300 and RS-330: engine, dimensions, weights, PTO speeds, lift capacity, tires, and measured test values.
06/07/2026
The complete maintenance schedule for the Yanmar RS-240, RS-270, RS-300 and RS-330: all intervals from the manual plus the adjustment values for the clutch, brakes, steering and V-belt.
06/07/2026
Which engine oil, transmission oil and coolant does the Yanmar RS-240, RS-270, RS-300 or RS-330 need? All fill quantities, specifications and the antifreeze mixing table.
06/07/2026
All filters of the Yanmar RS-240, RS-270, RS-300 and RS-330 at a glance: oil filter, line filter, fuel filter and air filter — with intervals, procedure and matching parts.
