Rod wiper for Terex BT4792

The rod wiper, part number 217985, is a component installed on the front outrigger cylinder of the Terex BT4792 crane. Its primary function is to clear debris, dust, moisture, and mud from the surface of the cylinder rod as it retracts into the cylinder housing. By maintaining a clean rod surface, the wiper prevents these contaminants from bypassing the primary seals and entering the hydraulic fluid circuit.

This component is specifically engineered for the Terex BT4792 model. Proper installation and maintenance of the rod wiper help protect the internal sealing elements and the rod surface from abrasive wear. This protection is necessary to maintain the integrity of the hydraulic system and prevent fluid leakage caused by contaminated seals.

In hydraulic systems, rod wipers are positioned at the cylinder gland to provide a scraping action against the rod. This prevents foreign particles from being carried into the cylinder, which could otherwise score the rod or damage the internal pressure seals. Regular inspection of the wiper ensures that the hydraulic cylinder continues to function within its design parameters.