![]() ![]() Use them and teach them to all other workers at the farm including the farm owners. It is important to learn all 11 standard hand signals. ![]() Make circular motion with either hand at head level.Įxample: Use this signal to have operator raise high lift or machine header. ASABE Hand Signal 11: Raise the Equipment Use circular motion with either hand pointing to the ground.Įxample: Use this signal to have operator lower high lift or machine header. ASABE Hand Signal 9: Stop the Engineĭraw right hand, palm down, across the neck in a motion left to right.Įxample: You need to have the operator stop the engine for some adjustments to the machinery. Move arm in circular motion at waist level to simulate cranking engine.Įxample: You need to signal the operator to start the engine after some adjustment has been made. Do not move arm above horizontal.Įxample: You are going too fast slow down. ASABE Hand Signal 7: Slow Down- Decrease SpeedĮxtend arm horizontally sideward with palm down wave arm downward at 45 degrees minimum several times. Raise the hand to the shoulder, fist closed thrust the fist upward to the full extent of the arm and back to the shoulder rapidly several times.Įxample: Move the unit out now the way is clear. ASABE Hand Signal 6: Speed It Up-Increase Speed Hold that position until the signal is understood.Įxample: The tractor and forklift are now positioned for loading an apple bin onto a truck. Raise the hand upward to the full extent of the arm, palm to the front. ASABE Hand Signal 4: Move Out-Take Offįace the desired direction of movement hold the arm extended to the rear then swing the arm overhead and forward in the direction of desired movement until the arm is horizontal with palm down.Įxample: You have hitched the machine for the operator and connected the PTO signal the person to move out for field work. Signal by holding arm horizontally to the front, forearm and palm up, and motioning toward the body.Įxample: Use this signal to motion an equipment operator to move toward you to position or move equipment in a crowded area where side visibility is poor. Point toward person(s), vehicle(s), or unit(s). ASABE Hand Signal 3: Move toward Me-Follow Me Raise the arm vertically overhead, palm to the front, and rotate in large horizontal circles.Įxample: Drive up this orchard middle. Place palms at ear level facing head and move inward to show remaining distance to go.Įxample: Use this signal to assist a tractor operator in backing a loaded trailer or hitching to a trailer. Standard Hand Signalsīelow are photos of some standard hand signals adopted by the American Society of Agricultural and Biological Engineers (ASABE) to communicate machine operations. An increased risk for equipment runovers as well as crushing can occur. Some equipment tasks require a helper to assist with connecting implements or loading supplies. Often this noise and the distance needed for a worker to safely be seen by equipment operators can limit the ability to verbally communicate. The results of this study demonstrated the effectiveness and feasibility of the proposed method for fault diagnosis of tractor auxiliary gearbox.Noise is a major hazard affecting farm workers, as it impacts their ability to communicate with equipment operators. The best results obtained at 1350 RPM, since the detection accuracy was 95%. The corresponding values of RF trained with the optimal 6 features by using CFS was 92.5%. The overall accuracy of RF classifier without using feature selection were 86.25%, at 600 RPM. Random forest (RF) and multilayer perceptron (MLP) neural networks were employed to classify the data. Correlation-based feature selection (CFS) method was used to find the best features. Useful statistical features were calculated from collected signals. Vibration signals of healthy and faulty pinions gear under three different operational conditions (Rotational speeds of 600 RPM, 1350 RPM and 2000 RPM) were collected, and discrete wavelet transform (DWT) was used as signal processing. In this study, fault diagnosis of tractor auxiliary gearbox is presented. Using intelligent fault diagnosis systems in tractor could prevent secondary damage, thereby avoiding heavy consequences. Accurate detection of mechanical components faults is an essential step for reduction of repair cost, human injury probability and loss of production. ![]()
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