Rato RG1.6-55-D-3

Rato RG1.6-55-D-3The Rato RG1.6-55-D-3 is a tiller for garden, greenhouse and vegetable growers. The RG1.6-55-D-3 is equipped with small 4-stroke general-purpose Rato R100 engine; belt and worm gear type transmission system. The engine uses dual-element air cleaner, flat suction valve carburetor, transistorized magneto ignition system; centrifugal governor and recoil starter. The Rato RG1.6-55-D-3 working width is 55 cm (21.6 in) and working depth is 29 cm (11.4 in)

The Rato R100 is a single-cylinder air-cooled 4-stroke internal combustion engine. It has a 56.0 mm (2.2 in) cylinder bore and 40.0 mm (1.60 in) piston stroke. Compression ratio rating is 8.5:1. The engine produced 3.0 HP at 3,600 rpm of horsepower and 4.7 N·m (0.48 kg·m, 3.46 ft·lb) at 2,500 rpm of torque.

General information

Clutch type
Tiller, Rotavator, Cultivator Specifications
ModelRato RG1.6-55-D-3
Dimensions (L x W x H):770 x 425 x 660 mm (30.3 x 16.7 x 25.9 in)
Dry weight (without tines)45.0 kg (99.2 lbs)
Operating weight55.0 kg (121.2 lbs)
Engine modelRato R100
Displacement98 cm3 (6.0 cu-in)
Bore x stroke56 mm X 40 mm (2.20 x 1.60 in)
Max. horsepower3.0 HP at 3,600 rpm
Max. torque4.7 N·m (0.48 kg·m, 3.46 ft·lb) at 2,500 rpm
CarburetorFlat suction valve carburetor
Cooling systemForced-air
Ignition systemTransistorized magento ignition
Lubricating systemSplash
Starting systemRecoil starter
Stoping systemIgnition primary circuit ground
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel tank capacity2.0 L
Transmission and clutch
TransmissionBelt and Worm gear
Gearbox1 Forward

Maintenance data

Maximum speed3,850 ± 200 rpm
Idle speed1,550 ± 150 rpm
Cylinder compression9.2 kg/cm2 at 1,400 rpm
Valve clearance
Intake valve clearance0.15±0.02 mm (0.006±0.001 in)
Exhaust valve clearance0.20±0.02 mm (0.008±0.001 in)
Oil system
Oil type4-stroke or an equivalent (SJ)
Recommended oilSAE 10W-30, 15W-40
Oil capacity0.35 L
Ignition system
Spark plugNGK: BPR6ES
Spark plug gap0.7-0.8 mm (0.028-0.031 in)
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

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