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Cooling system is in charge of reducing the temperature of the engine and other systems such as the braking or hydraulic system, it is also responsible for maintaining the engine at an adequate working temperature, for this purpose coolant is used.

Air was used in older engines, but these engines are no longer very common in modern industry.

These are some of the subsections of the cooling system;

• Coolers and intercoolers
• Water pumps
• Tensioners and belts
• Indicators and sensors
• Expansion tanks
• Organic and inorganic refrigerants
• Miscellaneous (Hoses, plugs, gaskets, fan motors, etc…)

 

Cooling system operation

When the engine is cold, the components wear out easily, it pollutes more and is less efficient, an overheating of the engine would cause major breakdowns, that is why the main function of the cooling system is to allow the engine to warm up as soon as possible and then to work at a constant temperature.

Here below, we detail some sections of the system and its functions:

 

RADIATOR

Made up of many small-diameter finned tubes, it acts as a heat exchanger between the hot water from the engine and the ambient air blown by the fan.

 

COOLER

It acts as a radiator, it cools the oil to achieve a suitable temperature and viscosity, ensuring good lubrication of the parts.

 

INTERCOOLER

Main in turbocharged engines, it reduces the temperature of the air in the intake, thus avoiding drops in engine performance.

 

THERMOSTAT

It acts as a valve for the coolant, it is in charge of opening and closing its passage to the radiator, thus allowing an optimal and constant operating temperature.

 

 

WATER PUMP

Its function is to maintain a constant flow of refrigerant within the circuit, it is one of the main components that cause leaks and major breakdowns in the cooling system.

 

FAN

Ensures forced air circulation through the engine radiator, in public works machinery there are different types depending on their drive:

 

• BELT DRIVEN FAN

this type of fan is always running regardless of coolant temperature and its speed depends on engine speed

 

• FAN WITH CLUTCH

The engine control unit manages the speed of the fan, engaging and disengaging the clutch according to the signal from the various engine temperature sensors.

 

• FAN DRIVEN BY HYDRAULIC MOTOR

This fan varies its speed according to the temperature of the coolant and other systems, it is the most precise and efficient of all those mentioned above.

 

EXPANSION TANKS

It absorbs variations in the volume of the refrigerant due to changes in temperature and maintains the system pressure within pre-established limits.

 

TENSIONERS AND BELTS

The main functions of belt tensioners are to maintain proper tension, dampen system vibrations, and guide the drive belt. At Blumaq we have ribbed, trapezoidal or toothed belts, and tensioners with the exact design, measurements and specifications of the OEM manufacturer.

 

REFRIGERANTS

The coolant is a compound of deionized water, additives and ethylene glycol, the latter has the ability to regulate the temperature, depending on the place where you work you must take into account the temperature ranges of the coolant to be used, which range from -40ºC to 140ºC, there are 2 types of coolants:

 

• ORGANIC

It does not use silicates and is therefore more durable, since this compound causes it to degrade earlier, instead it uses protection additives that also reach a higher freezing temperature.

 

• INORGANIC

They last less than organic due to the use of silicates and are more harmful to the environment.

It is important that the cooling system only uses liquid coolant, otherwise the useful life of the engine components will be shortened and we could have the following problems:

• Cavitation in the system.
• Corrosion of cooling system components.
• Increased system temperature.
• Shorter useful life of the diesel engine.

 

TEMPERATURE INDICATORS

Recognition of these symbols by the operator allows the maintenance team to take action before these failures become major repairs. In this way we warn that they are informative indicators that give us information on the state of the refrigeration system, indicating through visual or sound alerts, its malfunction.

Blumaq has the most complete line of products for maintenance and repair of the cooling system of your machine, Our products are manufactured under the strictest quality controls, adjusted to the specifications of the OEM manufacturer.

A bearing is a mechanical component whose function is to guide a rotating assembly. Allows the rotation of one element with respect to another. Bearings are therefore high-precision components that allow equipment to move at different speed levels by efficiently transmitting significant loads. They must offer high precision and durability, as well as the possibility of working at high speeds with minimal noise and vibration emission.

You can find below some of the types in Blumaq’s inventory:

 

Ball

Ball bearings are the most common and used in most models of public works and mining machinery, being capable of supporting axial and radial loads.

 

Spherical roller

These bearings are specially designed for the models of public works and mining machinery which support the highest loads and work under the most adverse circumstances, subject to impacts and vibrations.

 

Tapered roller

This type of bearing is formed by an inner ring, outer ring and tapered rolling elements.

 

Cylindrical roller

Cylindrical roller bearings are available in a wide range of designs, series, versions and sizes.

 

Needle roller

The main defining characteristic of needle roller bearings is the fact they are made up of cylindrical rollers with a very small diameter compared to their length.

The bearings supplied by Blumaq, whether they are conical, cylindrical or spherical, are are made of the highest quality alloy steel. The manufacturing and control processes of the leading brands in the design and development of bearings provide our range a guarantee of reliability and durability.

A hydraulic pump is an element capable of transforming mechanical or electrical energy into hydraulic energy and, in turn, into movement of implements, the flow generated by the pump and the pressure of the system will determine the speed and power of these.

The hydraulic pumps could be;

• Fixed flow: the flow rate only varies by increasing the speed of the pump.
• Variable flow: the flow is independent of the speed of the pump, it is determined by the need of the system.

Basic maintenance for hydraulic pumps

It is advisable to periodically check or inspect the hydraulic system of your machine and, especially, the pumps to avoid costly breakdowns, pay attention to the following tasks regularly:

• Pay attention to its correct operation
• Visually inspect possible leaks and condition of its components
• Check pressures periodically
• Analyze the level of vibrations emitted by the machine
• Change hydraulic oil and filters after service hours listed

Anyway, the best thing to do in order to extend the useful life of the hydraulic pumps as much as possible, is to have professionals specialized in the maintenance of your machine, at Blumaq we have a workshop service where we repair and restore your machine in record time, helped by expert in mechanics.

The bucket tooth system is exposed to extreme stresses when it encounters a combination of hard materials, shock and high breakout forces.

In such environment it is impossible to eliminate wear, but it is possible to reduce the effect it has on the tooth system of the machine. Our big challenge is to design a tooth system optimized for the forces and wear to which it is exposed. Such a system of teeth provides optimal useful life with sustained performance.

The design and selection of materials of the highest resistance and durability make this tooth system the most suitable for your machine.

The use of a good wear system guarantees a long useful life for your machine thanks to:

• The use of high-quality steel alloy.
• Designed to maximize working hours.
• Better fit between adapter and tooth.

 

Reduction of replacement times:

• Lower maintenance costs
• Increased productivity

 

A better penetration capacity will provide you:

• Better and faster filling of the bucket
• Reduced bucket, machine and tire wear
• Lower fuel consumption

 

Blumaq supplies you with all the spare parts you need to replace the bucket tooth system of your machine, contact us for more info.

Power train system

Transmission is in charge of optimizing engine power, controlling speed, force and direction of its planetary gears and clutches.

BQ shafts and pinions are geometrically designed to reduce stress and are heat treated to support various transmission rebuilds.

Discs are made of cutting-edge materials that provide excellent resistance to friction wear.

Converters hydraulically transfers the power from the engine to the transmission, allowing torque-speed to be adjusted according to need. Blumaq has Mounted torque converters and all of their individual components: turbines, stators, discs, carriers, etc …

Maximum quality in all the complete range of spiders and driveshafts, perfectly aligned.

Final drive transfers power to the tires or chains, while reducing speed and increasing torque.

Differentials are responsible for transmitting the power they receive from the 90-degree transmission to the wheels.

Our power train product range provides you with a fast and efficient repair of your equipment with the highest quality guarantee.

Quality i sour business.

Transmission system

Converters

Differentials

Driveshaft

Final Drive