Function performing parts of these excavators are arm attached to hydraulic cylinder and the boom. These apart, excavating buckets with spikes for piercing through surface are also wearable. Whole operation is composed of digging, collecting and unloading in convenient place or collector. The system can be compared with human arm working with total flexibility in movements, provided with all directional offsets or swings. Components supporting digging operation are complex positioning arrangement of bottom rollers, track chains, sprockets, front and drear idlers, rollers (top and bottom), frame covers, adjusters, track guides, recoil springs, wear buttons, adapters, base plates, cutting edge plus more. In the mobility and transferable energy generating mechanism too there are a hundreds of wearable parts.
Wear parts that are directly associated with undercarriage paving performance are rubber pads, rubber tracks, floor plates, bearings, sprockets, rollers, track assemblies, idlers and rollers etc. The cutting edges, flights, chains, ejector rollers, guides and sprockets also are common wear parts used in heavy earth working machines. There are many wearable attachments in the group of heavy machines. The Front Linkage attachments make excavators versatile in many directions of use. Consistent performance of machines is provided by One-Piece Booms made of high tensile steel, welded with robotic welding technique. A long stick attachment maximizes reach; additionally there is a medium stick for versatility in front linkage.
Linkage bearings are important wear parts which are basically self greasing, mostly used are pin-linkage type bearings. Highly stressed parts like boom-foot and boom cylinders are provided with linkage pins with thick chrome finish for better durability. The track links are greased and sealed for protection from dust for better wear life. Mesh bearings are used on collecting buckets. Protection of wear parts are taken care of reasonable by floating seals. The rollers, idlers and sprockets fall in this category of lubrication provision.
Next wear parts are master pins which are split-in type for easy removal of track attachments. Track roller frame are made up of high rigidity and resistant to bending and twisting forces. Travel Brake Valves are of much use in reducing wearing of travel motors. Segment-type rubber track, idler guard and blades feature are well within wear parts that need to be taken into consideration for checking and replacement.