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7 tips to teach you how to save fuel on loaders

Release Time: 2020-11-16


Views: 143

7 tips to teach you how to save fuel on loaders
Reasonable operation of the loader can reduce fuel consumption without reducing operating efficiency, which not only saves use costs, but also reduces exhaust emissions and protects the environment. Today, the editor tells everyone about the fuel-saving operation method of the loader.

1. Shorten the transportation distance

Loading materials of the same quality and transporting the same distances consumes far more fuel than trucks. When the loader loads the truck, the V-shaped driving route is usually adopted, that is, the loader moves forward from the starting position to the stacking position without load, and then returns to the starting position after being loaded with materials, and then moves to the truck position when fully loaded. As shown in the figure.

After calculation, the distance from the starting position of the loader to the position of the truck with full load is shortened from 100% to 80% of the length of the loader's fuselage. 

The workload per unit time can be increased by 17% and fuel consumption can be reduced by 16%. Therefore, when the loader loads the truck, the truck should be as close to the loader as possible to shorten the loader's transportation distance.

Regardless of the size of the loader, the forward and backward distances should be 0.8 times the length of the loader's fuselage, preferably not more than 2 times, to reduce the transportation distance of the loader under full load, shorten the operation cycle time, and save fuel. Improve work efficiency.

2. Prevent unnecessary idle speed

After starting and before stopping, it is necessary to run the diesel engine at idle speed for 5 minutes, but long-time idling will waste fuel. Therefore, when waiting and resting, the diesel engine should be turned off to save fuel.

3. Reasonable selection of gear operation

When the loader bucket is inserted into the material pile and the material is stripped, the insertion resistance is relatively large. The first gear should be selected during the shoveling process, and the shoveling can be completed with a relatively small throttle. 

When the throttle is low, the diesel engine speed is low, not only the fuel consumption is low, but also the hydraulic system of the working device has a small flow rate and less overflow loss, thereby further reducing the diesel engine fuel consumption. 

For example, when using a loader equipped with a ZF4WG200 transmission for shoveling operations, start with gear II; insert the bucket into the stockpile and press the KD button to lower the gear to gear I and complete the shoveling operation with a lower throttle. 

If the second gear is used to complete the whole process of shovel loading operations, the throttle will increase and fuel consumption will increase. The timing of shifting when the loader is loaded is shown in the figure.

4. Avoid torque converter stall

When the loader bucket is inserted into the pile and stripped of materials, it may be difficult to insert and strip due to the hardness of the materials. 

Even if the diesel engine throttle is increased, the forward speed of the loader is still zero. This phenomenon is called torque converter stall. 

When the torque converter stalls, the diesel engine's fuel consumption is very high. All the energy generated by the diesel engine is absorbed by the torque converter and converted into heat, and dissipated into the atmosphere through the torque converter oil radiator. 

At this time, the operating efficiency of the loader is zero.

During the shovel loading process of the loader, the torque converter stall should be avoided, and the load can be reduced by rotating the bucket, so as to successfully complete the shovel loading operation and save fuel.

5. Avoid tire skidding

When the loader digs the accumulated materials on the ground, the front wheel is lifted due to the excessive downward pressure of the bucket. When the throttle of the diesel engine is increased, the front wheel tires will slip, resulting in waste of fuel.

When shoveling ground materials, the bucket lightly touches the ground to avoid tire slipping. When slipping occurs, lower the throttle, raise the bucket slightly, and then slowly increase the throttle for shoveling.

6. Avoid hydraulic stalls

During the shoveling process of the loader, when the shoveling load is too large, even if the bucket operating handle is always pulled, the bucket cannot shovel. 

At this time, the hydraulic system pressure reaches the set pressure of the overflow valve, the overflow valve opens, and the hydraulic oil flows back to the hydraulic oil tank. 

This phenomenon is called hydraulic stall. At this time, the fuel consumption of the diesel engine is very high, but the operating efficiency is zero. 

All the energy generated by the diesel engine is converted into heat through the hydraulic system and radiated to the atmosphere through the hydraulic oil radiator.

In the process of shoveling materials by the loader, when the shoveling load is too large, do not forcibly pull the bucket or boom control handle, but slightly push the control handle to reduce the load, and the shoveling can be completed smoothly.

7. Control the lifting height of the bucket

During the full-load lifting process of the loader, the higher the bucket lift, the more energy it consumes and the higher the fuel consumption. 

The lifting height of the bucket of the loader should be controlled according to the actual height of the truck fence to avoid excessive lifting, which may cause a waste of fuel and time.

Loader operation according to the above operation method, the fuel saving effect should not be underestimated. Not only can reduce the cost of use, but also reduce carbon dioxide emissions.