捷豹XJR Serpentine/Drive Belt Replacement at your home or office.

How do mechanics replace the serpentine belt?

• Prior to removing the belt, the mechanic must run the engine to determine if the idler pulley and the belt tensioner are noise-free. Those rotating components have grease filled bearings and are subject to wear. In addition, the mechanic will ensure that all pulleys and accessories are turning in the same plane. These steps help make sure your new belt will operate trouble-free for its full-service life.
• 注意到皮带穿过各个组件的路由路径。皮带张紧器通常用扳手或杠杆释放，以释放皮带的张力。随着拉伸的张力，皮带从皮带轮上滑下。
• 所有旋转组件（即交流发电机，空调压缩机等）都进行了检查，以进行平滑操作，没有噪音。
• If everything checks out, the new belt is slipped over all of the pulleys while holding the tensioner away from the belt. Once the belt is centered on all pulleys, the tensioner is released and the installation is complete. The engine is run to ensure normal operation.