4639249 Original Excavator Wiper-Blade for EX2000-7B-BH

The original wiper blade (universal number 4639249) is specially designed and matched for the Hitachi EX2000-7B-BH ultra large mining excavator (with a working weight of about 200 tons). This universal number is the unique identifier for genuine Hitachi components, ensuring that it matches perfectly with the curvature of the front windshield of the cab, the installation interface of the wiper arm, and the drive system. This accessory may also be compatible with large mining equipment of the EX1900-7B, EX2600-7B series, but to ensure installation effectiveness and wiping performance, the specific model of the host and this universal number must be used when ordering.

This product is a pair of black wiper blades, made of high-strength metal frame and special synthetic rubber wiper strip (yellow part) composite. The metal skeleton has undergone rust prevention treatment, making it sturdy and durable; Rubber scraper strips have excellent flexibility, weather resistance, and UV resistance, and can maintain elasticity in extreme environments ranging from -30 ℃ to 80 ℃. Its unique aerodynamic curved design ensures a tight fit with the giant front windshield during high-speed wiping, effectively removing rainwater, mud, and dust, providing a clear driving view for safe operations in harsh mining conditions.

Clean the sand, gravel, and oil stains on the scraper every 250 hours of daily work to avoid dry scraping and damaging the glass and rubber. Check the scraper every month for aging, hardening, cracking, or uneven wear. If there are water marks or abnormal noises after wiping, they should be replaced in a timely manner. When replacing, it is necessary to replace the original 4639249 wiper blades in pairs. After installation, spray water to test the wiping effect and adjust the pressure to ensure that there is no jumping or missing wiping. In winter, it is necessary to promptly remove ice and snow from the scraper blades, and it is strictly prohibited to rinse them with hot water. Keeping the glass clean and using specialized glass water can significantly extend the service life of wiper blades.