1136715160 Excavator 6HK1 Engine Belt

Part number 1136715160 is an original accessory drive belt provided by Hitachi for hydraulic excavators equipped with 6HK1 series diesel engines. This component is mainly used for the accessory drive system at the front end of the engine, synchronously driving multiple auxiliary equipment such as air conditioning compressor, generator, steering pump, water pump, etc. Its universal models cover various mainstream medium-sized excavators equipped with 6HK1 engines, such as Hitachi ZX200-3, ZX330-3, EX200-3, Komatsu PC200-8, PC220-8 and other 20-30 ton models. As an original transmission component, its tooth profile, pitch, and length are perfectly matched with the tooth grooves of the engine crankshaft pulley and various accessory wheels. It is strictly prohibited to use non-standard accessory belts to avoid transmission gear jumping, abnormal accessory operation, or belt breakage.

This product is a multi wedge rubber synchronous belt with a dark gray or black body. The inner surface (working surface) is covered with tight and equidistant transverse fine teeth to achieve precise meshing with the belt teeth groove and prevent slipping. The outer surface is relatively smooth. Its material is usually high-strength chloroprene rubber, with polyester rope or fiberglass tensile layer embedded inside to withstand transmission tension. Based on the general specifications of construction machinery, typical technical parameters include pitch (such as 9.525mm), number of teeth, length (possibly in the range of 1000-1200mm), and width. The working temperature range is -30 ℃ to+100 ℃, with excellent oil resistance, heat resistance, and fatigue resistance. Compared with ordinary V-belts, synchronous belts have the advantages of precise transmission, high efficiency, and no need to adjust tension.

Installation specifications: 1 Disassembly: First disconnect the negative terminal of the battery, use a special tool (such as a socket wrench) to turn the automatic tensioner to release tension, and then remove the old belt. 2. Inspection: Before installation, check the teeth grooves of all pulleys for wear and oil stains, and ensure that each wheel (crankshaft wheel, compressor wheel, generator wheel, idler wheel, etc.) is in the same plane (alignment deviation ≤ 1mm). 3. Installation: Strictly follow the belt winding diagram inside the engine compartment, align the teeth of the new belt with the grooves of each pulley, and insert them completely. Pull the tensioner by hand, insert the belt, and then slowly release the tensioner to press the belt tightly. 4. Recheck: Manually rotate the crankshaft several times to confirm that all teeth are in place and there is no tooth disengagement.