J932209 Original Excavator Foot Pad Bolt for ZX450

The original foot pad bolt part number J932209 is a specialized adjustment support on the Hitachi ZX450 series medium-sized hydraulic excavator. It is mainly suitable for models such as ZX450, ZX450LC, ZX450-3, etc. It is usually used for leveling and vibration reduction of the cab floor, engine bracket or equipment installation base. It adjusts the height through threads and relies on the bottom rubber pad to achieve stable support and vibration isolation. This universal number is its only original factory identification. When ordering, the complete model, serial number, and installation location information of the equipment must be provided to ensure that the thread specifications, length, and load-bearing capacity are fully matched.

This product belongs to high-strength adjustable foot pad bolts, usually made of carbon steel or alloy steel. The screw part is designed with full thread, and the thread specification may be M12-M16 metric coarse thread. The performance level can reach 8.8 or 10.9. Its structure includes a metal screw, a locking nut, and a bottom rubber/polyurethane pad. The hardness of the rubber pad is usually between Shore A50-A70, which has good shock absorption and anti slip performance. The height adjustment range is generally 10-50mm, and the static load capacity of a single foot pad can reach 50-200 kg. It is suitable for leveling and vibration buffering of ZX450 equipment when working on rough terrain.

Installation inspection: Clean the installation surface before installation to ensure it is flat and free of oil stains. Use a torque wrench to tighten the locking nut (usually ≥ 60 N · m) according to the manual requirements, and adjust the screw to make the equipment horizontal. Regular inspection: Check the foot pad bolts for looseness and the rubber pads for cracking, hardening, or severe wear every 250 hours of operation. Cleaning and rust prevention: Regularly remove accumulated soil and oil stains, check whether the screw threads are corroded, and apply rust proof grease if necessary. Replacement timing: When the rubber pad loses elasticity, cracks, or wears more than 30% of its original thickness, or when the screw bends or the thread is damaged, it must be replaced in a timely manner. In frequent vibration or harsh working conditions, it is recommended to conduct preventive inspections or replace the foot pad bolts every 2000-3000 working hours to ensure equipment stability and shock absorption effect.