Dictionary of Kozmaksan
What is Cooling System?
Cooling system is a set of equipment employed to keep the temperature of a structure or device from exceeding limits setby needs of safety and efficiency. If overheated, the oil in a gearbox loses its lubricating capacity. Cooling systems are employed on Power Take Off Units with Lubrication Pump. In other words, if lubrication pump does not suffice for cooling the system, we need to use Fan or Heat Exchanger for that purpose. Depending on conditions (Pump rpm value, power, climate condition, type of truck, working hours etc.) Kozmaksan can suggest the best option for cooling system.
Lubrication Pump?
Lubricating oil pumps are used to supply oil to lubricate parts inside of gearbox. Lubricating oil is like the lifeblood of a gearbox. When oil level falls, the gearbox fails. Oil is used for film thickness to reduce friction and friction losses.
In the case of circulation lubrication, the lubricating oil pump sucks some amount of oil from the gearbox, forces it through the lubrication points and then feeds it back to the gearbox. Gear pumps, which are able to generate high static pressure in the lubricating oil system, are preferably used for this purpose.
For these purposes, we use lubrication pump on different products to cool the system and reduce the friction losses to obtain better performance results. The right oil choice will allow your unit to have better performance results and lifetime.
What does Rotation mean?
Gearbox output sense of rotation indicates what direction the shaft is expected to rotate. It depends on which side one faces the equipment, i.e. looking at it at the front or rear. So the crucial point about shaft sense of rotation is indicating where we are facing the equipment. There two different rotation types;
- CW: Clockwise
- CCW: Counter-Clockwise
KOZMAKSAN also uses two different types of views to represent the sense of rotation of gearbox unit;
- Front of Truck
- Rear of Truck
What Are Those Plugs And Sensors For?
Oil Filling Plug
A plug on the product which is used for filling the oil into the gearbox. This needs to be removed to fill the oil.
Air Vent Plug
There is also another plug on the upper side of the product keeping the pressure in gearbox at safe levels. The oil inside the product generates pressure as it runs. In case of pressure exceeding the limits, the equipment fails. To avoid this, we use air vent plug.
Oil Indicator
Gearboxes are closed and sophisticated mechanical systems. So, it is not easy to see how much oil there is inside. Therefore, we mount Oil Indicator Plug on our products so that users can see the oil level inside the gearbox. Oil Indicator Plug is a small, transparent window which allows oil level inspection. Oil is the most crucial factor for gearbox. Because excessive heat, which is not desirable, occurs as the mechanical parts move. For mechanical reasons, oil must be used in our products and if it falls below required limit, there will be excessive heat, noise, failure and even tooth breakage.
Oil Draining Plug
When oil change time comes, you can drain used oil through this plug. Generally, it is positioned under the equipment to allow the user drain used dirty oil from gearbox. This plug is not optional for gearboxes. It is located at the bottom of equipment body in all our products.
RPM Counter
A sensor that allows you to know rotation speed of input or output shaft. So, you can see speed of shaft for superstructure’s ideal values. Usually, it gives you RPM (Revolution per minute) in unit. With the help of this sensor, you can check shaft rotation value for your system. How fast is rotating PTO to pump? Does it exceed pump limits? How much power I will get from PTO? And the user can get answers for several other questions using RPM Counter Sensor.
Engage/Disengage Sensor
A sensor that allows you to know if output is engaged or disengaged. So, in this way sensor lets you know if shaft is rotating or not. This sensor allows you to check gearbox working mode. Is PTO output engaged or not? Is gearbox on Main Drive Mode? This sensor will help you with similar questions.
Oil Level Sensor
Oil level sensor shows if oil level has fallen below lower limit. Sensor works according to the amount of oil touching sensor tube. This will allow checking oil level without the necessity of inspecting gearbox interior.
