The Rato RG3.6-75-D-2 is a tiller for garden, greenhouse and vegetable growers. The RG3.6-75-D-2 is equipped with small 4-stroke general-purpose Rato R210 engine; belt and sprocket type transmission system and gearbox with two forward and one reverse speed. The engine uses dual-element air cleaner, flat suction valve carburetor, transistorized magneto ignition system; centrifugal governor and recoil starter. The Rato RG3.6-75-D-2 working width is 81 cm (31.9 in) and working depth is 33 cm (13.0 in)
The Rato R210 is a single-cylinder air-cooled 4-stroke internal combustion engine. Compression ratio rating is 9.0:1. A 70.0 mm (2.76 in) cylinder bore and 55.0 mm (2.16 in) piston stroke give the Rato R210 motor a total of 212 cc of displacement. The engine produced 5.0 kW at 3,600 rpm of horsepower and 12.0 N·m (1.22 kg·m, 8.85 ft·lb) at 2,500 rpm of torque.
General information
| Tiller, Rotavator, Cultivator Specifications | |
| Model | Rato RG3.6-75-D-2 |
| Dimensions (L x W x H): | 900 x 400 x 780 mm (35.4 x 15.7 x 30.7 in) |
| Dry weight (without tines) | 63.5 kg (140.0 lbs) |
| Operating weight | 81.0 kg (178.6 lbs) |
| Engine | |
| Engine model | Rato R210 |
| Displacement | 212 cm3 (12.94 cu-in) |
| Bore x stroke | 70 X 55 mm (2.76 x 2.16 in) |
| Max. horsepower | 5.0 kW at 3,600 rpm |
| Max. torque | 12.0 N·m (1.22 kg·m, 8.85 ft·lb) at 2,500 rpm |
| Carburetor | Flat suction valve carburetor |
| Cooling system | Forced-air |
| Ignition system | Transistorized magento ignition |
| Lubricating system | Splash |
| Starting system | Recoil starter |
| Stoping system | Ignition primary circuit ground |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Fuel tank capacity | 3.6 L |
| Transmission and clutch | |
| Transmission | Belt and Sprocket |
| Clutch type | Tension |
| Gearbox | 2 Forward, 1 Reverse |
Maintenance data
| Engine | |
| Maximum speed | 3,800 ± 200 rpm |
| Cylinder compression | 12.0 kg/cm2 at 1,400 rpm |
| Valve clearance | |
| Intake valve clearance | 0.15±0.02 mm (0.006±0.001 in) |
| Exhaust valve clearance | 0.20±0.02 mm (0.008±0.001 in) |
| Oil system | |
| Oil type | 4-stroke or an equivalent (SJ) |
| Recommended oil | SAE 10W-30, 15W-40 |
| Oil capacity | 0.6 L |
| Carburetor | |
| Main jet | #85 |
| Float height | 13.7 mm (0.54 in) |
| Pilot screw opening | 2-1/8 turns out |
| Ignition system | |
| Spark plug | NGK: BPR6ES |
| Spark plug gap | 0.7-0.8 mm (0.028-0.031 in) |
| Primary ignition coil resistance | 0.8-1.0 Ω |
| Secondary ignition coil resistance | 5.9-7.1 kΩ |
| Ignition coil air gap | 0.4 ± 0.2 (0.016 ± 0.008) |
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