KAMAZ platform lift limiting valve
The platform lift limiting valve is secured to the bracket of the first subframe crossmember.
A bushing with a sealing ring is screwed into the housing 16
A rod with an adjusting screw 15 at one end passes through the hole in the sleeve, the other end of the rod faces valve 17.
The adjusting screw ends with a spherical head and is locked with a lock nut.
In the closed position, the valve is pressed against the body by a spring.
When the spherical head of the adjusting screw is pressed, the rod moves and opens the valve, while the pressure and drain lines communicate.
Valve with an electromagnet
Purpose of the platform lift limiting valve
The platform lift limiting valve (PLLV) is a device designed to control the lifting height of the vehicle body.
Its main task is to prevent excessive lifting of the platform, which can lead to damage to the hydraulic system, vehicle rollover or other emergency situations.
The valve ensures the safety of the operator and the safety of the equipment by limiting the movement of the platform in the upper position.
Valve operating principle
The platform lift limiting valve operates on the principle of regulating the pressure in the hydraulic system.
When the platform rises to a certain level, the valve is triggered and blocks the flow of hydraulic fluid entering the hydraulic cylinder.
This stops further lifting of the platform.
Structurally, the valve consists of a housing, locking mechanism and a spring that provides the necessary force to operate the device.
When the maximum pressure is reached, the spring is compressed and the valve closes, blocking the movement of fluid.
Operating Features
- Regular Performance Check
To ensure reliable operation of the valve, its condition must be checked regularly.
This includes checking for leaks, checking the actuation pressure and the absence of mechanical damage.
- Adjusting the Maximum Lift Level
Depending on the KAMAZ model and operating conditions, it may be necessary to adjust the valve to set the optimal platform lift level.
This is done using adjusting screws or other structural elements.
- Cleanliness of the hydraulic system
Contamination of the hydraulic fluid can cause the valve to jam or malfunction.
Therefore, it is important to change filters in a timely manner and use only fluids recommended by the manufacturer.
- Replacing worn parts
Over time, the spring and other elements of the valve may wear out, which leads to a decrease in its efficiency.
If signs of wear are detected, the valve or its components must be replaced.
Advantages of using a platform lift limiting valve
- - Improving safety during vehicle operation.
- - Protecting the hydraulic system from overloads.
- - Increasing the service life of the equipment.
- - Reducing the risk of emergency situations.
The KAMAZ platform lift limiting valve is an important element of the hydraulic system that ensures the safety and reliability of the truck.
Correct operation and timely maintenance of this device will help to avoid breakdowns and extend the service life of the equipment.
Regular inspection and replacement of worn parts will help to maintain the valve in working condition, ensuring uninterrupted operation of the vehicle in any conditions.
Using high-quality components and following the manufacturer's recommendations is the key to the durability and efficiency of the KAMAZ platform lifting system.
