总装工艺课件--第五章检测.ppt

1 1 * Objective: Bring back the vehicle driving performance to new – all wheels roll straight, no pull, firm steering wheel, … Drive control – focus on symmetric alignment angles including SAI Tire wear – Toe and Camber adjustment to reduce tire wear Steering wheel – centering and leveling steering wheel before front Toe adjustment Power steering system – centering the hydraulic power valve to avoid pull caused by the power steering system. 1 1 * 注：首先要仔细听驾驶者的叙述和问题的征兆然后试车检查是否有震动，偏行或其他问题的征兆而引起的驾驶者的抱怨。 1 1 * Hard Steering: Low tire pressure, excessive positive Caster Steering gear binding, steering lubricant low, steering fluid level low, Defective power steering belt Loose Steering: Excessive loose wheel bearings, steering loose on mounting Worn steering and suspension parts, steering gear misadjusted Poor returnability: Incorrect Caster, incorrect Camber, low air pressure Bent strut or spindle, bent steering gear Wonder/Instability: Incorrect alignment, worn tires, low tire pressure, mismatched tires Worn or loose steering gear, bent spindle or strut, loose wheel bearing Memory Steer: Binding steering linkage, steering gear binding, upper strut mounting binding Unbalanced power assist Bump Steer: Misalignment of steering linkage, bent steering arm, incorrect wheel alignment Frame or cross member misalignment, bent spindle or strut Worn or bent rear suspension parts, worn or sagged springs Torque Steer: Bent spindle or strut, bent steering arm, bent lower control arm Drive train misalignment, frame or cross member misalignment Worn torque strut, incorrect wheel alignment, broken or worn motor mount Excessive body sway: Loose stabilizer assembly, worn shocks or mountings Broken or sagged springs, uneven vehicle load, uneven tire pressure * PPT课件 目 录 第二章 一次内饰 2 ……………………………………………………………………………………… 第一章 序言 1 ……………………………………………………………………………… 第三章 底盘 3 …………………………………………………