Tag: maquinaria pesada

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.

L90G

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.

VOLVO L90G

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.

Indicador desgaste VolvoIndicador de desgaste Volvo

 

 

 

 

 

 

 

 

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.

Aftercooler Volvo

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.

Extracción carcasa filtro Volvo Filtro aire Volvo L90G

  • 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.

Rejilla y parte ventilador Volvo

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

Apertura capó L90G

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.

Cabina L90G Climatización Volvo Climatización Volvo L90G

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.

Joystick L90G Sistema hidráulico L90G

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.

Nivel aceite Volvo L90G

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.

Panel instrumentos L90G Panel instrumentos L90G

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).

Alumbrado Volvo L90G

  • 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.

Cámara L90G

  • 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 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.

VOLVO L

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.

Komatsu WA470-5

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.

Volvo L220E

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.

Volvo L180E

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.

Komatsu WA380-5

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

Komatsu WA380-6

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

Volvo L150E

11709023 for wheel loaders like L220D, L150E and L180E.

Volvo L220D

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