The device is a Twin Master Peanut Combine, manufactured by Colombo North America. It is an agricultural machine designed for harvesting peanuts.
Function Description:
The Twin Master Peanut Combine is designed to efficiently pick up, thresh, and clean peanuts from the field. The process begins with a pickup cylinder equipped with fingers that gather the product and throw it onto an auger. From there, the peanuts are directed to a conditioning cylinder and then to the threshing cylinder. Sliding shoes on the pickup unit allow it to follow the terrain's unevenness, ensuring the pickup fingers work close to the soil surface to collect plants arranged in furrows.
Threshing is performed by an Axial Flow of Low Impact (FABI) system. Beating pins, arranged along the helicoidal cylinder, thresh the peanuts and prevent the screen from becoming obstructed by straw. This system also allows for adjustment of the threshing time. After threshing, peanuts pass through a screen around the cylinder and fall onto a vibrating sieve, which separates "peanut + thin straw" from thick straw. The thick straw is eliminated by the cylinder. A cleaning fan then sucks away light dirt particles (thin straw), allowing only the peanuts to proceed to the rear of the combine. In the rear, below the sieve, a deposit collects the peanuts, which are then transported by an auger to the grain elevator. The elevator carries the peanuts up to the grain box, and product unloading is achieved by tilting the box using hydraulic cylinders.
Important Technical Specifications:
- Engine Required Power: 150 - 170 cv
- Coupling: Draw-bar/TdP (850 rpm)
- Remote Control Valves Required: 3
- Cardans: Series 6000
Pickup Unit:
- Hold System: Sliding shoes
- Work Width (L1): 5.450 mm
- Pickup Finger Type: Hard
Threshing System and Separation:
- Beating Cylinder Diameter: 2 concaves of 700 mm
- Beating Cylinder Length: 2 cylinders of 3,600 mm
- Work Rotation: 430 rpm
- Threshing Screen (Concave) Holes Diameter: 50 x 70 mm
Cleaning System:
- Main Sieve Cleaning Area: 6.98 m²
- Vibrating Sieve Hole Diameter: Half moon - 5x30 mm
- Air Flow: Adjustable
- Turbine Diameter: 2 turbines of 700 mm
Storage System:
- Grain Elevator: 2 foldable
- Amount and Type of Mugs: 45 polyethylene
- Mug Fastening: 2 side chains
- Grain Box Capacity: 4,000 kg (160 bags of 25 kg)
Dimensions and Weight:
- Work Height (A1): 3.514 mm
- Transport Height (A2): 4.770 mm
- Unloading Height (A3): 4.082 mm
- Length (C): 9.100 mm
- Width (L2): 6.709 mm
- Weight: 10.100 kg
- Wheels: 23.1 x 26"
Usage Features:
The combine's performance is highly dependent on soil conditions, peanut characteristics, moisture levels, and the operator's skill.
- Soil Preparation: An even soil surface is crucial to minimize pod loss and ensure smooth machine operation. Removing stubs, stones, and other obstacles is recommended. For direct planting, straw should be managed to create an even surface and prevent high rootstock.
- Moisture Conditions: It is advised to start harvesting when the product's moisture level is slightly higher than ideal, as peanuts will dry during the process. Avoiding overly dry material at the end of the harvest prevents breakage and loss. Moisture levels fluctuate throughout the day, with dew in the morning increasing moisture and delaying threshing. Depending on the region, pickup may only start after 10:00, 11:00, or even 12:00 o'clock.
- Side Tilt: The machine should not be operated on soils with a side tilt greater than 10% to prevent overturning. Operators should be cautious of holes and swells.
- Operating Speed: The operator should work at the highest possible speed that allows for optimal performance without harming the machine or causing excessive losses. Working at a lower speed to harvest a smaller area per day is preferable to speeding up and increasing loss levels, which can also lead to unnecessary maintenance.
- Safety: Always turn off the tractor engine before any service or adjustment. Loose clothing and long hair can be caught by moving mechanisms. Children and curious individuals should be kept away from the combine during operation. The inspection platform should only be accessed when the machine is stopped. Before any movement, ensure the path is clear of people, animals, or obstacles. The combine should be coupled to the tractor on a flat and level surface for safety and ease.
Maintenance Features:
- Hydraulic System: When removing hydraulic hoses, first lower the grain tank and pickup unit, then turn off the tractor engine. Move remote control levers in both directions to relieve residual pressure in the circuit before removing hoses. Always use protecting plugs. High-pressure oil leaks can cause serious injury; never use hands to check for leaks. If hydraulic fluid penetrates the skin, seek medical attention immediately.
- Grain Elevator Assembly: The elevator is folded for transport and must be unfolded for operation. Secure the chain ends with wire or rope to prevent mugs from displacing, then fully unfold the elevator. Fasten the upper part with screws and nuts. Remove the bottom inspection cover, then remove the wire/rope and splice the chain. Adjust chain play using side stretchers. Upper bearings should be aligned.
- Pickup Unit Assembly: If the pickup unit is disassembled, it should be assembled on a flat, firm ground. After coupling the combine to the tractor and securing the wheels with wooden wedges, safely hang the pickup unit (e.g., with a tractor boom and cork belt) and position it under the header, aligning it with the gatherer. Fasten the pickup unit to the combine's side stand points using screws, washers, and nuts. Secure the raise cylinder's terminal to the pickup unit stand point using a pin, washer, and screw kit.
- Cardan Length Adjustment: Refer to the cardan shaft manual for adjustment instructions.
- Lubrication: Observe correct lubricant types and amounts for all components. Be careful when handling hydraulic oil and greases due to carcinogenic chemical components; seek medical assistance if accidental contact or ingestion occurs.
- Safety Decals: Follow all instructions on the safety decals found on the combine.
- Periodic Maintenance: The manual includes sections on periodic maintenance items, gearboxes maintenance, grease lubrication points, belts maintenance, chains maintenance, threshing system and cleaning maintenance, grain elevator maintenance, tires pressure check, and machine preservation between crops.
- Troubleshooting and Technical Assistance: The manual provides troubleshooting guidance and contact information for Colombo North America for technical assistance and machine series number inquiries.
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