412 DRIVETRAIN 4.3.2 ON VEHICLE REPAIRS PRECAUTIONS Following precautions should be taken while handling or working on driveshaft. NOTE : Refer above figure for more illustration as precautions are in-line with numbering given in figure. 1. Precautions should be taken to avoid damaging the surface of the threads and splines during installation on vehicle. 2. Protect this surface from nicks and scratches. Damage to this surface may reduce the performance of oil seal. 3. Take precaution to avoid any contact between the ear of the clamp and any object, which may bend/ crush, the “ear”. A damaged “ear” may decrease the clamping load, which may lead to grease leakage and/ or intrusion of water/debris. Clamps once used should not be reused again. 4. Eared clamp must be placed at correct position while crimping i.e. it should be crimped at the solid or outer portion of tulip joint. Do not crimp the clamp at the depression area of the joint. 5. Never handle driveshaft in vertical position. It should be handled by both hands. If possible, one gripping the Outboard joint by the outer race or the stem and the other hand gripping the In board joint by outer race. A slight axial force should be applied in order to guarantee that the plunging joint is fully compressed. Take all precautions to avoid any contact between the inboard and outboard boots and any surface which may cause a cut, nick or abrasion. The boots are extremely delicate and critical to the performance to the half shaft. Do not allow the boots to come in contact with other half shafts, work benches, the vehicle frame, lower control arm, or any other chassis component. If grease leakage is observed from either boot, the half shaft should be removed, checked and rectified.
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