Drive Chain, Drive Sprocket, and Driven Sprocket Cleaning and Inspection (1)

Drive Chain, Drive Sprocket, and Driven Sprocket Cleaning and Inspection

Drive Chain, Drive Sprocket, and Driven Sprocket Cleaning and Inspection (1) — figure 1

1. Inspect all components or sub-components and perform any repair procedure necessary to fix the damage. If the damage cannot be repaired, replace the component or sub-component as indicated.
2. Replace any components if damage is found in this procedure. The sprockets must be replaced as a pair.
3. Clean all components in cleaning solvent and air dry.
4. Inspect the transfer case front output shaft drive sprocket bearing assembly (1). Replace the bearings if roughness, brinelling, or pitting is detected. Front Output Shaft Drive Sprocket Bearing Replacement
5. Inspect the transfer case front output shaft drive sprocket bearing bore (2). If the bearing is removed, inspect for excessive wear, damage, or if the bearing has spun in the bore.
6. Inspect the transfer case four wheel drive clutch housing engagement teeth (3) for chips or excessive wear.
7. Transfer case front output shaft drive sprocket (4) 7.1. Inspect for chipped teeth, excessively worn gear surfaces, and debris embedded in the root of the teeth. 7.2. Witness marks at the location of the chain is normal.
8. Transfer case front output shaft driven sprocket (5) 8.1. Inspect for chipped teeth, excessively worn gear surfaces, and debris embedded in the root of the teeth. 8.2. Witness marks at the location of the chain is normal.
9. Inspect the transfer case front output shaft drive chain assembly (6) for loose link pins, binding or stiff links, debris embedded in the links, or worn teeth surfaces.