Energic Mototracteurs 712 Diesel (1955/63).
The 712 Mototracteur models were rare, it is thought only some 200+ were produced from the 1955 model A (with model B starting in 1956). They initially used the same identification plaque as the 411 with the numeric notation 70***, and in 1956 the mototracteurs used their own identification plaque. The mototracteur were found to be difficult to manoeuvre, with poor weight distribution In the working environment – it was necessary to have additional weight/s added at the rear to enable this mototracteur to perform its basic functions. Staub, of the time, offered a better mototracteur alternative and the Energic mototracteur 712 was phased out. Later to be replaced with the extensive 4RM tractors, they were worthy competition to the Staub and other direct competitor ranges.
Engine/Moteur. Sachs Single cylinder 604cm3, 12-14 cv, 2 stroke Air cooled, alésage 88 x course 100, as per 712 d. With a chamber of pre-combustion. Injection – Bosch. Compression 20:1.
Here is the engine in the tracteur.
Lubrication. By constant circulation of oil held within the sump of the engine. The circulation pressure being attained from crankcase compression.
Cooling. One large aluminium fan is mounted at the front of the engine, running on ball bearings. This system draws air into the hood circulating around the engine, ensuring cooling. this system was tested in extremely high temperatures and proved effective.
Starting. Electric starter moteur or by hand crank, direct on to the motor, – located at the front of the engine.
Injection. Bosch, high-pressure tubing, porte injector. Presser of injection 120 kg/cm3.
Air filter/Cleaner. Filter in a bath of oil.
Gears. Box Bté S.G.D.G.The three-speed gearbox is built within the engine offering 6 forward and 3 reverse gears depending upon the options. this operates through a lever (lower left-hand side facing forward from the seat) giving low/high ratios 1/4, 3/6, 2/5. The right-hand lever operates in 3 positions, furthest toward the front of the mototracteur is reverse, centre is low speed and towards the rear is high speed.
Reverse. 3 speeds are available in reverse depending upon the options.
Clutch. Mono disc sec, within the chassis casing. This operated from a lever pulled up under the left-hand side of the steering wheel.
Exhaust/Silencer. Fitted to the left-hand side in a frontal position (viewed from the rear looking forward), away from the driver.
Steering. executed by the upright steering wheel, direct shaft on to gears that rotate around a geared semi-circle connected to the rear section of the mototracteur.
Wheels. Pneumatic Tyre wheels 750 x 18 front and trailing small wheels rear. Nine additional overall widths are available;64, 66, 68, 72.5, 74.5, 76.5, 81, 83 and 85 cms. (some literature states Wheel width is regular-able between 0.53m and 1.03m) These are obtained by altering the wheels into different positions. Blockage is independent for each wheel.
Hitch. All implements are attached to a 3 metal bar rack system. Where you can attach implements such as ploughs, hoes etc., in many variable positions depending upon the type of work required. Careful use of the manual lift and weight allows the operator to alter and maintain the draft and other characteristics required to operate the implements at different depths and pressure. Alternatively, you can opt for a hand-operated link system for a plough and no 3 metal bar rack frame.
The alternative hydraulic system sees below, or hitch system for Brabant ploughs.
Ploughing depth. Up to 12 ins (30,48 cms) dependent upon soil conditions.(greater depth with a link plough than the 3 metal bar rack frame).
Fuel consumption. 0.6 to 2.3 litres of fuel per hour dependent upon working conditions. The tank holds approx. 9 litres.
Throttle control. Operated from beneath the right-hand side of the steering wheel (while positioned facing forward).
Weight. 760kgs With additional wheel weights of approx. 25kgs single or (50kgs) double. Also, it is possible to fill the tyre with water for extra traction and weight.
Speeds. With 1st gear giving 2kms – kmph, 2nd – 3kmph, 3rd – 4kmph, 4th 7kmph, 5th 12kmph and 6th gear giving 18kms per hour.
Additional electrical equipment. Starter, Battery 45/60 (amps/hours), dynamo, lights, horn.
Brakes. Independent on each wheel, operated from the near the steering wheel.
Dimensions. 3m 47cms long, (without any back tools, frame etc., 2m 20cms).
The price in 1963 was 9,088 francs.
With accessories priced as follows; and common to the petrol and diesel models.
Wheel masses (for 750 x 18 wheels) factory fitted 188 francs. 25kg
Hoe 5 toe, mounted on the rear 3 metal bar frame 303 francs. Weight 28 kgs.
7 dent cultivateur mounted on the rear 3 metal bar frame 276 francs. Weight 36 kgs.
2 soc plough for vine work mounted on the rear 3 metal bar frame 426 francs 34 kgs
1 soc Butteur (in French) plough mounted on the rear 3 metal bar frame 355 francs Weight 19 kgs.
A special adaption was a fitment for a Brabant plough and fitment universal expensive at 168 francs. Weight 35 kgs.
Later on in its production, the 712 was available with an electric circuit for lights, comprising of an alternator, rectifier and small 7ah battery. The price in 1963 factory fitted was 357 frs, or bought as an after-sales accessory 335 francs. According to the 1/02/1963 price list. And interestingly there is a quote for a hydraulic lift 1645 francs weight 92 kgs.
TVA inclusive (in addition wrapping, delivery and local taxes of 2.82% to be levied).
Read more about the Energic Mototracteur 712 petrol here.
Read more about the Energic motoculteur 409 here.
Read more about the Energic Motoculteur 410 here.
Read more about the Energic motoculteur 411 here.
Read more about Energic Tracteur 519 T.M.D.Indenor engine/moteur here.
Read more about Energic Engine suppliers Ruggerini here.
Read more about Energic Engine/Moteur supplier Peugeot here.
Read more about Energic Sachs Engines/Moteurs here.
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