Machinery news, advice, information by TAOPPARTS.COM

Volvo D12DAAE2 Engine Tuning

Engine timing is a crucial task to ensure optimal performance and engine longevity. In this blog, Taoparts experts will guide you through the process of tuning the Volvo D12DAAE2 engine, used in the A35D articulated dump truck. We will also discuss the specific tolerances for the intake and exhaust valves.

Materials Needed

Adjustment tools (torque wrench, micrometer, valve gauge)
Volvo D12DAAE2 engine service manual
New engine oil and filters
Protective gloves and glasses

Engine Tuning Steps

Volvo A35D swing motor

1. Preparation

Disassembly: Start by disassembling the engine and making sure all parts are clean and free of debris.
Component Inspection: Inspect engine components such as pistons, connecting rods, and rings to make sure there is no damage.

2. Adjusting the Intake Valves

Valve Clearance: Use the valve gauge to measure the intake valve clearance. Adjust the valves to the specified tolerance of 0.2 mm.
Check: Check the valve clearance again to make sure it is within tolerance.

3. Adjusting the Exhaust Valves

Valve Clearance: Similar to intake valve adjustment, measure the exhaust valve clearance and adjust to the specified tolerance of 0.5 mm.
Check: Check the exhaust valve clearance again to ensure it is within tolerance.

4. Displacement Adjustment

Compression: Perform a compression test to ensure the engine is under proper pressure.
Cylinder Adjustment: Adjust the cylinders to service manual specifications.

5. Assembly and Testing

Reassembly: Reassemble the engine and replace all components that were removed.
Functional Tests: Perform functional tests to ensure that the engine runs properly and without problems.

Volvo D12DAAE2

Conclusion

Volvo D12DAAE2 engine timing is a detailed process that requires precision and attention to detail. By following these steps and ensuring that the valves are adjusted to the specified tolerances, you can keep your engine in top condition and extend its life.

The importance of a good timing cannot be underestimated. A well-tuned engine not only ensures smooth and efficient operation, but also prevents premature component wear. By keeping intake and exhaust valves within proper tolerances, combustion is optimized and engine power is maximized, resulting in superior performance and lower fuel consumption.

Additionally, regular engine tuning is essential to detect any potential problems early. By inspecting and adjusting valves and cylinders, mechanics can identify and correct small problems before they become major failures. Not only does this save time and money on costly repairs, it also extends engine life and ensures vehicle safety.

At Taoparts, our highly trained mechanics use the most advanced tools and techniques to perform engine tune-ups with the utmost precision. We are committed to quality and customer satisfaction, ensuring that every engine that passes through our hands performs to the best of its ability.

Proper care and maintenance of your A35D articulated dump truck not only improves its performance, but also ensures that it’s ready to meet any challenges that come your way on the jobsite. Trust Taoparts to keep your equipment in top condition and maximize its efficiency and durability.

Contact us for all your spare parts needs!

Do you need spare parts for your heavy machinery? Look no further. Contact Taopparts and we will provide you with the original spare parts you need to keep your machine running at peak performance.

www.taopparts.com

Valve adjustment in Komatsu engine

Valve timing on a diesel engine, such as the Komatsu SAA6D125E-5, is a critical procedure to maintain its optimal performance. This engine is mounted on Komatsu machines, such as the PC450LC-7 excavator, the WA480-6 loader or the HM300-2 articulated dumper. In this blog we will also address the verification of the axial play of the engine of this machine.

Komatsu SAA6D125E-5 Engine Valve Adjustment

1. Tools needed:

Before you begin, make sure you have the following tools on hand:

Ratchet wrench: Useful for loosening and tightening valve nuts.
Wrench and screwdriver set: To access the relevant engine parts.
Calibration thickness gauge: Also known as gauges or calipers, it is used to measure the clearance between valves and camshafts.
Torque wrench: Necessary to apply the correct force when tightening the valve nuts.
Calibration Sheets: Provide precise specifications for valve adjustment.
Engine service manual: contains precise information about the engine and manufacturer’s recommendations.

2. Preparation:

Locate the valves:

Identify the exhaust and intake valves on the engine. In the case of the SAA6D125E-5, this engine has 6 cylinders and 24 valves (12 exhaust and 12 intake).

Engine position:

Place the engine at the top dead center (TDC) of the number 1 cylinder. Consult your engine manual to find the reference mark on the crankshaft pulley.

What is an intake valve?

The intake valve is responsible for allowing the air-fuel mixture to enter the engine’s combustion chamber. During the intake phase of the engine cycle, this valve opens so that the mixture can enter and prepare for combustion.

What is an exhaust valve?

The exhaust valve, on the other hand, is responsible for expelling the burned gases resulting from combustion out of the combustion chamber. This valve opens during the exhaust phase of the engine cycle, allowing exhaust gases to be expelled through the exhaust manifold.

Main differences

Function: The intake valve introduces the air-fuel mixture, while the exhaust valve expels the burned gases.
Temperature: The exhaust valves support higher temperatures due to the hot combustion gases, reaching between 600º and 800º Celsius, while the intake valves handle lower temperatures, between 200º and 400º Celsius.
Material: Exhaust valves are made of more heat-resistant materials, such as stainless steel alloys, to withstand high temperatures.
Size: Intake valves are usually larger than exhaust valves to allow greater air intake and improve engine efficiency.

3. Measurement and Adjustment:

Exhaust valves:
Using the torque wrench, loosen the exhaust valve locknut.
Use the feeler gauges or calipers to measure the clearance between the cam and the valve. Adjust if necessary.
The recommended clearance for the exhaust valves is 0.71 mm
Intake Valves:
Repeat the same process for the intake valves.
The recommended clearance for the intake valves is 0.33 mm

Tighten the locknut:

Once the valves are adjusted, tighten the locknut without moving the valve position. In the following image you can see a Taopparts mechanic carrying out this task.

4. Verification:

1. Turn the engine:

Crank the engine manually several times to ensure there is no interference between the valves and pistons.

2. Check again:

Remeasure the valves after cranking the entire engine.

Make sure all valves are within the specified range.

Valve timing has a significant impact on engine performance. Here are some of the ways it affects:

Combustion Efficiency:
The valves control the air intake and exhaust gas output. If the valves are not properly adjusted, the air-fuel mixture may be inadequate, which affects combustion efficiency.
Power and Torque:
Incorrect adjustment can affect engine power and torque. Valves that are too tight or too loose can decrease overall power and performance.
Emissions:
Valves influence emissions. If the exhaust valves are not closed properly, exhaust gas leaks may occur, increasing pollutant emissions.
Noise and Vibration:
Poorly adjusted valves can cause excessive noise and vibration. Proper adjustment helps reduce these discomforts.
Engine Durability:
Poorly adjusted valves can cause premature wear on engine components such as camshafts and valve guides.

In summary, accurate valve timing is essential for optimal performance of the Komatsu SAA6D125E-5 engine in terms of power, efficiency and durability.

How to Check Axial Play on a Komatsu SAA6D125E-5 Engine

Axial play refers to the lateral movement allowed between the rotating parts of the engine. In the case of the Komatsu SAA6D125E-5 engine, it is important to check it to ensure optimal operation. Follow these steps:

Preparation:
- Make sure you have access to the specific service manual for the SAA6D125E-5 engine
Top Dead Center (TDC) Location:
- Crank the engine manually until the number 1 cylinder reaches top dead center (TDC). Consult your manual to find the reference mark on the crankshaft pulley.
Axial Play Measurement:
- Use a magnetic dial gauge to measure axial movement in the crankshaft.
- Place the dial gauge so that its tip touches the end of the shaft.
- Rotate the crankshaft while checking the end play.
Comparison with Specifications:
- Consult the manual for the exact end play specifications for the SAA6D125E-5 motor.
- The axial play should be in the range 0.14 – 0.315 mm.
Registration and Document
- Record the measured values and any adjustments made on a recording sheet.

At TaopParts, each Komatsu engine goes through a rigorous verification process before being offered for sale. Mechanics not only perform axial adjustment, but also perform compression tests and other evaluations to ensure the engine is in perfect condition.

At Taopparts, we are committed to offering the highest quality spare parts and services so that our customers can operate with maximum efficiency and peace of mind.

Contact us for all your spare parts needs!

Do you need spare parts for your heavy machinery? Do not look any further. Contact Taopparts and we will provide you with the original spare parts you need to keep your machine running at peak performance.

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Exploring the axles and differentials of the Volvo L120F

We explore the main powertrain components in a loader, using the Volvo L120F as an example. To go even deeper, let’s take a look at some additional aspects and expand with examples from other loaders:

Axle: The Base of the Support

The axles of a Volvo L120F loader are crucial components that ensure the mobility, stability and power of this robust machine. Designed and manufactured to the highest quality standards, these axles play a fundamental role in the daily performance of the loader.

Main functions of the axes:

Weight support: The axles support the total weight of the loader, including the machine itself, the load in the bucket and any additional accessories.
Power Transmission: The axles transmit power from the engine to the wheels, allowing the loader to move forward, backward, twist and turn on its own axis.
Shock Absorption: The axles absorb impacts and vibrations from the ground, protecting the machine and operator from damage.
Steering: The axles allow the loader to turn and maneuver with precision.

In the photo below you can see some axles of a VOLVO L120F loader

Differentials: Adapting to Every Terrain

The differential is a crucial part of the machine’s transmission system. Its main function is to allow the tyres to rotate at different speeds when the machine is turning or cornering. This helps maintain traction and prevents excessive wheel slip.

Differential components:

Crown and pinion gears: These gears are located inside the differential. The ring gear is a large sprocket that connects to the drive shaft, while the pinion is connected to the output shaft to the wheels. Together, they allow the distribution of power between the wheels.
Satellites and planetaries: Satellites are small gears that rotate around planetary gears. The planetaries are connected to the pinion and the ring gear. When one tyre spins faster than the other (for example, in a curve), the satellites allow the planetary gears to move, adjusting the speed of the wheels.
Differential housing: It is the structure that contains all the components mentioned above. It also provides support and protection.

Functioning:

When the machine turns, the differential allows the outside wheels to spin faster than the inside wheels. This prevents slipping and improves traction. If one wheel loses traction (for example, on slippery terrain), the differential redirects power to the wheel with the best grip.
In short, the differential is essential for the stability, handling and traction of the Volvo L120F. Without it, the wheels would not be able to rotate independently, making operation on varied terrain difficult.

Types of differentials

Open Differential: This is the most common type of differential and allows the wheels to spin at different speeds. However, it can allow one wheel to spin faster than the others, which can lead to uneven tire wear and loss of traction.
Locking Differential: This type of differential locks the wheels to rotate at the same speed, which improves traction on difficult terrain. However, it should not be used on hard surfaces as it may damage the drivetrain.
Limited Slip Differential: This type of differential combines the features of open and locked differentials. It allows the wheels to spin at different speeds up to a point, but then locks up when more traction is needed.

In the photo you can see a differential 11103282 of a Volvo L120F loader

A Crucial Shipment to Mozambique

Recently, two axles, one front and one rear, along with two differentials, were shipped from Valencia, Spain, to Mozambique. These components will be used to repair or replace worn parts on a Volvo L120F machine operating in that country. The shipment of these critical parts ensures that the machine can continue to operate efficiently and safely, contributing to the development and progress of Mozambique.

At Taopparts, our expert mechanics carefully inspect each part before shipping it to our customers. In this case, one of our technicians is meticulously checking an axle on a Volvo L120F loader.

This exhaustive review ensures that the axle meets the highest standards of quality and performance, ensuring that the customer receives a reliable and long-lasting part for their work equipment.

At Taopparts, we are committed to offering the highest quality spare parts and services so that our customers can operate with maximum efficiency and peace of mind.

Contact us for all your spare parts needs!

Do you need spare parts for your heavy machinery? don´t look any further. Contact Taopparts and we will provide you with the original spare parts you need to keep your machine running at peak performance.

Tuning and maintenance of the Volvo L90G loader

Keeping your Volvo L90G Loader in optimal condition is essential to ensure its performance and durability. Below are the key points you should check regularly to keep your machine in excellent condition.

What elements should we take into account?

We will list all those points to check to have your Volvo L90G loader in perfect working order.

Hydraulics and Transmission

We will check the hydraulic system, making sure the oil is circulating properly.
We’ll inspect the differential locking system, which is crucial to maximizing traction.
We will ensure that the Automatic Gear Shift System (FAPS) works smoothly.
We will check the brake wear indicators.

Engine

We will carry out an exhaustive check of the turbo diesel engine, such as checking for possible leaks in the injection system.
We will check the fuel pump, tubes and hoses (are they free of leaks?), electrical connections of the injectors, cooled exhaust gas recirculation sensor and the particulate filter.
We will check the aftercooler line (clamps, hoses, etc.) so that no leaks are observed. A leak can cause a drastic loss of power.
As long as we have the necessary instruments, we will check the diesel particulate filters (DPF) and their correct operation.

Air conditioning and fuel efficiency

We will ensure the correct operation of the air conditioning system and monitor the warning indicators.
We will use the different work modes that the loader offers us to save fuel consumption.

Air Filter and Hydraulic Steering

We will inspect the air filter, both the pre-filter and the main filter, located on the top of the machine to ensure clean air flow.

We will verify the hydraulic steering system, we will check that it is free of leaks and that its operation is correct (for example that it does not shake during its activity).

Structure and Accessories

The axle supports are maintenance-free and designed for long life. Even so, it should be noted that the pivot shaft lubrication system works correctly.
We will ensure that the hydraulic cooling fan is properly controlled electronically and rotates only when necessary.

To facilitate maintenance tasks, the hood has a new design that opens electrically with a wide opening range.

Transmission and Brakes

We will review the single lever gearbox, the valves and the automatic gear change from 1 to 4.
We will check the brakes, including wear indicators and nitrogen accumulators.
We also ensure that the Contronic system activates automatic declutching when braking. It is important to check, always with the machine stopped, the braking system by applying the brakes for a minimum of 30 seconds).

Cabin and Safety

We will inspect the cabin, including monitors, heater and defroster, as well as the air vents on all windows.
We will check the seat suspension and seat belt.
The machine must be equipped with an emergency exit hammer to break the window if necessary.

Lifting and Hydraulics Cylinders

The lift cylinders, hydraulic pump, valves and hydraulic control levers must be visibly free of leaks.
We will verify the operation of the bucket positioner and the adjustable position indicator.

General Maintenance

We will check the levels of fuel, engine coolant, hydraulic oil, gearbox oil, engine oil and axle oil.
We will carry out regular maintenance, such as draining and filling the engine oil.
We will check the brake lines and system connections.

Exhaust System and Electrical System

We will check the exhaust system, especially possible sensor failures and possible intake air preheating failures.
We will check the electrical system, which includes:
- Alternator, battery disconnect switch, batteries, hour meter, horn, instrument panel, gearbox temperature, coolant temperature and instrument lighting.

Lighting System and Outdoor Equipment

We will check the lighting, which includes headlights, brake lights, taillights, turn signals, and halogen work lights (2 front and 2 rear).

This model of loader comes equipped with an important safety element, such as the rear camera, which we will periodically review to verify its correct operation.

We will check the condition of the fenders, the cabin fixings and the engine and gearbox sinemblocks. All protections must be in place.Maintaining a routine of regular inspection and maintenance of these points is essential to ensure optimal performance and prolong the life of your Volvo L90G. Follow Volvo’s recommended maintenance schedule and perform regular inspections to keep your machine in excellent condition.Do not hesitate to contact us for all the necessary spare parts for your machine atinfo@taopparts.com

A glance to our machines

In the heavy machinery industry, choosing the right machine is crucial to achieve success in every project.

At TAOP PARTS, we understand the importance of having reliable and efficient equipment. Today, we present a showcase of our machines that, while they have a history, have been carefully inspected by our team and are in working order to provide the required performance for all types of work.

Volvo A35E Articulated Dump Truck (Year2008)

- 32 tons
- Tire Size: 26.5R25
- Load Capacity: 33.5 tons
- Special Features: Air Conditioning, CE Certification, D12D Engine

It stands out for a steering system that provides precise and powerful control for safe and highly productive operation. The cabin is spacious and comfortable with ergonomic controls and air conditioning. Furthermore, it offers a well-matched transmission system and five operating modes that reduce fuel consumption and wear, making it an exceptional choice for jobs on steep slopes, such as those in mining.

Liebherr L538 Wheel Loader (Year2010)

- 14 tons
- Articulated tipping load: 9500kg
- Bucket capacity: 2.6m³
- Tire size: 20.5R25
- Special features: Air Conditioning, CE Certification, Centralized Lubrication, Rear Camera, Liebherr Engine 105Kw/140HP

A versatile and rugged machine that has accumulated more than 12,000 hours of use in various applications. With a load capacity of 14 tons, it stands out for its spacious 2.6 m³ bucket and an articulated tipping load of 9,500 kg for safe handling of heavy materials. Equipped with a 105 kW/140 HP Liebherr engine, 20.5R25 size tires, and features like centralized lubrication and a rear camera, it ensures optimal performance. This wheel loader represents a solid and efficient investment for construction and earthmoving projects.

Volvo L90G Wheel Loader (Year2014)

- 15 tons
- Articulated tipping load: 9500kg
- Bucket capacity: 2.5 m³
- Tire size: 20.5R25
- Special features: Air Conditioning, CE Certification, Centralized Lubrication, Rear Camera, 120Kw/163 HP D6H Engine

The Volvo L90G Wheel Loader is a versatile and robust machine with a 15-ton load capacity. Its CE certification and comfort features, such as air conditioning and a rear camera, make it a smart choice for demanding projects. With this wheel loader, you will achieve top-class performance.

Volvo L90F Wheel Loader (Year 2010)

- 17 tons
- Articulated tipping load: 9500kg
- Bucket capacity: 2.5 m³
- Tire size: 20.5R25
- Special features: Air Conditioning, CE Certification, Centralized Lubrication, D6E LAE3 Engine 119Kw/162HP

This wheel loader combines solid expertise with exceptional performance, ensuring the loading capacity needed in the field of work.

Its robust design allows for an articulated tipping load of 9,500 kg and a bucket capacity of 2.5 m³. Equipped with air conditioning and special features like CE certification and centralized lubrication, it facilitates work in challenging conditions. Driven by a 119 kW/162 HP D6E LAE3 engine, this machine represents a sound investment.

At TAOP PARTS, our commitment to customer satisfaction is reflected in each of our machines and spare parts, always aiming for a second useful life and recycling.

Feel free to contact us at:

info@taopparts.com

What boosts our machines? A glimpse into a key element: The transmission

When we think of heavy machinery, we imagine an imposing power capable of moving earth, gravel, and stone with ease. But behind this vision, there is much more: achieving a longer lifespan with lower maintenance costs. In recent years, heavy machinery has evolved significantly to meet these demands. In this blog, we will explore the heart of these machines, the transmission. With a focus on wheel loaders, we will break down their key components, the fluids that keep them running, and their types.

Emphasizing Their Importance

Transmissions are the backbone of machines, allowing for the efficient transfer of engine power to the wheels or tracks. In a wheel loader, the transmission plays an essential role in adjusting speed and torque (the rotational force a motor can generate to perform work) according to operational needs.

And in the case of a wheel loader… What aspects do we highlight?

Essential Components of a Loader’s Transmission

Torque Converter

The torque converter is the first piece in a wheel loader‘s transmission. It functions as a hydraulic coupling that allows for the smooth and gradual transmission of power generated by the engine to the transmission. Its design enables jerk-free starts and efficient energy transfer. In situations of heavy loading, the torque converter acts as a torque multiplier, providing greater force to overcome obstacles and challenging terrains.

Gearbox (Powershift)

The gearbox, or powershift transmission, enables control of speeds and gear changes in the wheel loader. The distinctive feature of a powershift transmission is its ability to shift gears seamlessly, ensuring a smooth transition without power loss. It also allows the operator to adapt the machine, such as a wheel loader, to different load and terrain conditions, optimizing efficiency and performance in various tasks.

Axles and Driveshafts

Axles and driveshafts serve as crucial foundations in wheel loaders, playing an essential role in transferring the power generated by the engine to the wheels. Axles, designed to withstand loads and torsion, are responsible for maintaining precise wheel alignment and ensuring reliable traction on diverse terrains. Driveshafts, on the other hand, act as vital intermediaries by seamlessly transmitting motion from the gearbox to the axles.

The synergy between these components is fundamental for the optimal performance of the wheel loader, especially in construction, mining, and earthmoving environments.

Keeping them in optimal condition is a priority to ensure the reliability and efficiency of the machine throughout its lifecycle.

Fluids and Lubrication

In the past, powershift transmissions used to rely on engine oil, which was not an optimal choice due to differences in composition and performance required by transmissions. Compared to specialized oils, engine oils could lead to wear and friction issues in components such as clutches and brakes. Changes in fluid technologies and design have given rise to advanced oils that enhance performance and durability.

These modern lubricants fulfill several vital functions, including ensuring friction stability, anti-wear protection, and material compatibility. They also provide control over sludge, protection against rust and corrosion, and thermal stability.

You can choose between single-grade or multigrade oils, depending on the climate and requirements. As the industry evolves, oils will continue to adapt to new engines and emission requirements, remaining essential in maximizing the efficiency and longevity of heavy machinery.

Typology

In the realm of wheel loaders and most heavy machinery, we encounter a variety of transmission types, each designed to meet specific needs and situations:

Powershift: Renowned for its seamless gear shifts, allowing the machine to maintain its momentum and efficiency while changing speeds. Extremely useful in situations of constant load or on uneven terrains. The smooth transition between gears optimizes operation in various conditions, providing greater traction and reducing clutch wear. In construction and mining environments where power and durability are essential, they have proven to be an effective choice.

Hydrostatic: Hydrostatic transmissions employ hydraulic fluids to transmit engine power to the wheels or tracks. This technology offers precise control and smooth maneuverability, making it particularly valuable for operations requiring precise movements and maneuvers in tight spaces. The ability to vary speed and direction smoothly and continuously makes hydrostatic transmissions ideal for accurately loading and unloading materials in congested work areas.

Automatic: Automatic transmissions, known for their comfort and ease of use in passenger vehicles, have also been adapted for heavy machinery, including wheel loaders. These transmissions automatically shift gears based on load conditions and machine speed, allowing operators to focus on other critical tasks. Efficiency and the smoothness of gear transitions are standout features of this transmission type, resulting in a more comfortable and productive operation.

Recycling and Sustainability

The recycling of used transmission components plays an essential role in reducing environmental impact and promoting sustainability in the industry. Firstly, recycling helps minimize the accumulation of electronic and metallic waste, reducing pressure on landfills and preventing soil and water pollution. By salvaging and reusing parts from decommissioned transmissions, the need to extract and process new raw materials is decreased, contributing to the conservation of natural resources.

Additionally, it can have a positive impact on the economy by fostering job creation in the recycling and refurbishment industry. Workshops and specialized companies in parts recovery can repair and refurbish used components, extending their lifespan and offering them at a more affordable cost compared to entirely new parts. This benefits both heavy machinery operators and fleet owners by reducing maintenance and replacement costs.

Lastly, it contributes to a circular economy mindset in the industry, where products and materials are reused and recycled instead of being discarded after their initial lifespan. This not only reduces the industry’s environmental footprint but also promotes greater awareness of the importance of resource conservation and environmental responsibility in a critical sector for construction and infrastructure.

WA500-3

In TAOP PARTS, we can provide the necessary spare parts for your machine, including transmissions and their components. Feel free to contact us for inquiries and assistance.

www.TaopParts.com

info@taopparts.com

Ready for summer! And your machine… Is it truly prepared for the heat?

Heatwaves pose significant challenges, not only for people but also for machinery operating in construction sites, quarries, mines, and, in general, outdoor workplaces.

High temperatures can have a detrimental impact on the performance, lifespan, and integrity of all heavy machinery, including excavators, wheel loaders, rigid and articulated dump trucks, and bulldozers. Let’s examine the risks that heatwaves present and discuss essential tips on how to properly protect and maintain this equipment in challenging weather conditions.

Understanding the Risks

Extreme heat can trigger a series of issues in machinery, affecting their operation and leading to costly breakdowns. Let’s examine some of these risks:

Engine Overheating

High temperatures can strain the cooling system. Excessive heat can push the engine to operate at dangerous temperatures, potentially resulting in severe damage.

Accelerated Wear and Tear

Extreme heat accelerates the wear of mechanical parts, electrical components, and seals, which in turn can reduce the overall equipment lifespan.

Decreased Performance

Machines may become less efficient in extreme heat, impacting productivity and increasing operational costs.

Preventive Maintenance and Cleaning

Comprehensive preventive maintenance before and during heatwaves is essential to keep the machinery in optimal condition. Here are some key measures:

Cooling System Inspection

Always ensure that radiators, coolers and ventilation systems are clean and free from obstructions. It’s crucial that fans work properly to ensure adequate cooling.

Fluid Control

Maintain the proper levels of coolant and lubricants in the tanks according to the manufacturer’s specifications. High-quality fluids are essential to protect the machinery from high temperatures and friction.

Air Conditioning System (AC)

We must ensure that the air conditioning system is functioning properly to provide the operator with a more comfortable and safe environment, which can also help maintain focus and reduce fatigue. To achieve this, we will check the refrigerant level, clean filters, inspect hoses and connections, and remember to perform periodic system tests before shifts where the machine will be exposed to high temperatures.

Constant Temperature Monitoring

Implementing temperature monitoring systems can be vital to detect overheating issues in a timely manner and take preventive measures. Infrared thermometers and temperature sensors can provide real-time readings to identify potential hotspots.

Adjustment or Replacement of Components

An essential aspect of maintenance is regular inspection of the machine’s key components for signs of wear. We must replace and adjust worn-out parts to prevent unexpected breakdowns that may occur during work in extreme conditions, such as the high temperatures that some work sites can experience during the summer months.

Smart Scheduling

Planning heavy machinery operations based on weather forecasts can significantly reduce stress on the machine. Avoiding operation during the hottest hours of the day and performing the most intensive tasks in the early morning or late afternoon, when temperatures are lower, is beneficial.

Protection and Shelter

When the machines are not in use, it is advisable to keep them in shaded areas or under covers to protect them from direct sunlight. This can help reduce exposure to high temperatures and prevent damage to sensitive components, such as the electrical system, which can be vulnerable to overheating, leading to significant wear on the insulation materials of the wiring.

Operator Training

While we’ve primarily focused on machines, we cannot overlook the role of the operator. Training the operator on how to recognize signs of overheating and how to take corrective actions is essential. Operators should be attentive to warning signs and know when to stop the machine to prevent further damage.

Heat-Sensitive Components

Some components most sensitive to high temperatures in the summer are those subject to constant friction, involved in cooling processes, or containing materials that can degrade in extreme heat. For example:

Belts

Transmission belts, like alternator belts and fan belts, are susceptible to hardening, cracking, or breaking due to excessive heat. If they’re worn out, they can result in system failures and energy loss.

Hoses or Tubes

Since they transport coolant, oils, and hydraulic fluids, hoses and tubes can become more susceptible to leaks and ruptures when exposed to high temperatures. If they are weak or damaged, they can cause a loss of essential fluids necessary for proper functioning.

Radiators

Radiators and coolers are vital for the cooling system. If they become obstructed or damaged due to the accumulation of dirt, dust, or other contaminants, they can lead to engine overheating.

Thermostats

Thermostats regulate the engine temperature by controlling the flow of coolant. If they fail due to extreme heat, they can cause overheating or inadequate cooling of the engine.

Seals and Gaskets

High temperatures can cause seals and gaskets to degrade, leading to leaks and contamination of critical fluids.

Oils and Lubricants

If of low quality, their viscosity can be affected under extreme heat, which impacts their ability to properly lubricate and protect moving parts.

Electrical Components

Some electrical components, such as relays, switches, cables, and connections, may experience overheating due to high temperatures, which could result in malfunction or failure.

Fans

While designed to assist in the cooling system, fans can also be affected by high temperatures. If fans do not operate properly or if they become obstructed, the cooling system may not be as efficient, increasing the risk of overheating.

In conclusion

Proper protection and maintenance of earthmoving and mining machinery during heatwaves are essential to ensure the safety, efficiency, and longevity of the equipment.

By understanding the risks and implementing preventive measures such as regular maintenance, temperature monitoring, and smart planning, we can minimize the negative impact of extreme heat. Let’s remember that these investments in care and prevention not only safeguard our assets but also protect the workers operating these machines, ensuring a safer and more productive work environment in any climatic conditions.

You can reach us at:

info@taopparts.com

www.TaopPart.com

A Glimpse into the Heart of Our Machines: Hydraulic Pumps

The hydraulic system is a vital component in earthmoving and mining machines, as it utilizes special fluids, usually hydraulic oil, that are under pressure.

This pressure, generated by the fluid, is essential to transmit the required power and enable the efficient operation of various components in the machines. In this way, it enables the control of actions and other crucial movements in the equipment’s operation.

Components of the hydraulic system

Hydraulic pump: Converts mechanical energy into hydraulic energy, generating hydraulic flow that drives the operation of the components.

Hydraulic valves: Control direction, pressure, and flow, enabling precise movement of actuators.

Hydraulic cylinders: Transform hydraulic fluid energy into linear motion, driving lifting, pushing, and pulling actions. Among the top sellers at TAOP PARTS are:

Lift cylinder: Allows the movement of the boom and generates the force needed for lifting loads.

Steering cylinder: Enables control and change of the machine’s direction.

Boom cylinder: Provides lifting and tilting motion in heavy machinery, such as excavators, for excavation and loading tasks.

Bucket cylinder: Facilitates the movement of the bucket or other attachments.

Hydraulic motors: They are responsible for converting hydraulic oil into circular motion, enabling the operation of elements such as wheels and tracks. In this way, the hydraulic system drives essential movements for the machine’s mobility and operation.

Hydraulic filters: Maintain fluid cleanliness, protecting the system components from potential damage caused by particles and contaminants.

Accumulators: Store hydraulic energy and release it when a temporary increase in pressure or flow is needed.

At TAOP PARTS, we offer all the hydraulic system spare parts, as well as a large stock of its main component, the hydraulic pump.

The hydraulic pump in Komatsu and Volvo machinery

What is it?

The hydraulic pump is a device that converts mechanical energy into hydraulic energy, generating the necessary fluid flow that drives the operation of the hydraulic system.

Types

Gear pumps

They are simple and economical, suitable for low-pressure and low-flow applications.

Axial piston pumps

Composed of multiple pistons or plungers (usually six or eight), they can handle pressures of around 380 bar. They offer higher efficiency and pressure capacity, making them ideal for demanding applications.

There are 2 types:

Variable displacement: With the same speed, the hydraulic fluid flow can vary.
Fixed displacement: Depending on the speed, the flow varies. Higher speed results in higher flow, and vice versa.

Vane pumps

Commonly used for fuel and/or oil transfer. They do not generate high pressure but provide a good flow rate.

Gear pumps

Composed of two gears, they have a constant flow rate. The flow rate increases with higher revolutions. They operate at a pressure of approximately 250kg.

How does a hydraulic pump work?

Typically, the hydraulic pump takes in fluid at low pressure and sends it out at high pressure, creating a continuous flow that activates the entire hydraulic system of the machine, including cylinders, main valves, hydraulic distributors, etc.

It has an inlet or suction port and a main pressure outlet (PP).

On the other hand, variable displacement piston pumps work differently, as they act by internal signal to vary the flow.

Our most popular pump models

Here are the models that our best-selling pumps fit:

Komatsu

708-1S-00230 for wheel loaders like WA470-5, WA480-5, and WA380-5.

708-1S-00940 for wheel loaders like WA470-6, WA430-6 and WA380-6.

Volvo

15068597 for wheel loaders like L220D, L220E, L180E and L150E.

11709023 for wheel loaders like L220D, L150E and L180E.

In summary, the hydraulic system is a crucial component in earthmoving and mining machinery, with hydraulic pumps playing a vital role in its operation by generating the necessary hydraulic flow.

At TAOP PARTS, we understand the importance of supplying high-quality components for hydraulic systems. We offer a wide range of parts and spare parts for Komatsu and Volvo hydraulic systems. We work to ensure our customers’ machines perform at their best while promoting environmental protection and circular economy by giving our spare parts a second life.

Feel free to contact us!

TAOP PARTS

info@taopparts.com

Shall we talk about your upcoming tires?

Tires, those rubber circles that bring our vehicles and machinery to life, have a fascinating history that dates back centuries. From their beginnings as metal and wooden bands to modern high-tech designs, tires have undergone astonishing evolution.

In the construction and earthmoving sector, they are essential for machine mobility, providing stability in diverse and demanding terrains while bearing heavy loads.

That’s why tire reuse plays a fundamental role and has a highly positive impact on both the circular economy and environmental protection.

The importance of reusing

At Taop Parts, we believe that before disposing of a tire, there is a much more interesting option: recycling.

Tire reuse offers a sustainable solution that combines economic and environmental benefits. When we recycle tires, we reduce the demand for natural resources and prevent waste generation, thus contributing to environmental conservation.

Circular Economy and Tires

Tire recycling is a concrete example of the circular economy. Instead of following a linear model of production and consumption, where tires are discarded at the end of their life cycle, we believe in closing the loop and giving them a new life, thus restarting the cycle.

This involves not only the direct reuse of used tires but also the retreading process, which extends their lifespan and maximizes their value.

The Tire Retreading Process

Retreading is a fundamental process in tire recovery. It involves applying a new layer of rubber to the worn tire’s tread.

Before application, a rigorous inspection process is carried out to assess its retreadability. During the process, imperfections are eliminated, and damaged parts are replaced. Finally, a new layer of rubber is applied, giving the tire a new life and similar performance to a new tire.

The Most Commonly Used

Which tire to choose?

Firstly, we need to consider whether we want a radial or diagonal tire. At Taop Parts, we offer both models. But what are their main differences? Let’s take a look:

The main difference is the way they are built and their materials.

Diagonal tires consist of crossed layers that extend from bead to bead and are suitable for soft terrains without requiring as much traction.

On the other hand, radial tires have a structure with crossed layers from bead to tread on both sides, forming right angles with the tire’s axis, providing greater durability and traction.

At Taop Parts, the most commonly used tire is the radial tire due to its versatility. Here are some of the most popular models:

24.00R35

Size: 24 inches of nominal tread width and a 35-inch rim diameter.
Applications: Komatsu HD605-7 rigid dump truck.

23.5R25

Size: 23.5 inches of nominal tread width and a 25-inch rim diameter.
Applications: Komatsu WA380-5 wheel loader.

26.5R25

Size: 26.5 inches of nominal tread width and a 25-inch rim diameter.
Applications: Volvo A35E articulated dump truck.

29.5R25

Size: 29.5 inches of nominal tread width and a 25-inch rim diameter.
Applications: Komatsu WA500-6 wheel loader and Volvo L220E.

These tire models are subjected to extreme working conditions and constant wear. However, they can still be used in demanding applications.

To ensure their performance, Taop Parts conducts thorough inspections of the tires, including checking their height and overall casing condition. Opting for tire recycling makes a difference and helps build a more sustainable future in our industry.

Do no hesitate to contact us for further information.

TAOP PARTS

info@taopparts.com

The Liebherr Excavator: An Icon in the Construction Industry.

Since its founding in 1949, Liebherr has been a key player in the construction industry, manufacturing high-quality machinery for projects of all types and sizes. With a wide range of products including cranes, trucks, excavators, and loaders, it has earned a reputation as a leading brand in its field.

Excavators have become an icon of the brand, being used in construction projects all over the world. From demolishing buildings to constructing roads and bridges, they have demonstrated their versatility and reliability in a wide variety of applications.

History and applications of Liebherr excavators

In 1967, Liebherr introduced its first hydraulic excavator, revolutionizing the heavy machinery market and setting new standards for performance and efficiency.

Within its wide range of machinery, they have become one of the brand’s icons. These machines, mainly used in construction and mining jobs, have evolved over the years to adapt to the needs of each project.

From compact equipment for work in tight spaces to large machines for larger projects, Liebherr has developed a wide range of machinery to meet the needs of its customers.

The Liebherr R926LC Litronic excavator: features and main components

Among the most prominent models is the R926LC Litronic, which is characterized by its high efficiency and its ability to work in demanding conditions.

It is a medium-sized model designed to offer high efficiency and productivity in excavation and earthmoving work. Among its main features are:

Engine

: The R926LC Litronic features a Liebherr 150 kW diesel engine compliant with European level V regulations.
Hydraulic system:

The excavator’s hydraulic system has a flow capacity of 2 x 265 l/min and a maximum pressure of 365 bar.
Cab:

The operator’s cab is spacious and designed to offer excellent visibility and comfort. It features an air-suspended seat, a color touchscreen for machine control, and air conditioning.

Control system:

The Litronic control system allows precise control of the machine and provides a wealth of information on its performance and condition.

Main components:

Main components include the mainframe, boom, arm, bucket, undercarriage, and tracks. All of them are designed and built with high-quality materials to ensure machine durability and performance.

Confidence in quality

Liebherr has established itself as a leading brand in the sector thanks to its constant innovation and technological development. Its machines offer high performance, great efficiency, and long-term reliability, making them a reliable choice for all types of construction projects.

At TAOP PARTS, the inclusion of this great brand in our offering reaffirms our commitment to warranty, quality, and excellence, allowing us to provide our customers with the best solutions for their needs.

Do not hesitate to contact us.

info@taopparts.com