1. Ball bearing Replace the ball bearing in following cases. • In case of broken or rusty ball bearings • In case of worn or damaged ball bearings • When the ball bearings fail to turn smoothly or emit noise in rotation after transmission gear oil has been applied. 2. Transfer drive gear If the tooth face of transfer drive gear and the shaft are excessively broken or damaged, replace the transfer drive gear. 3. Measure the clearance between snap ring and inner race of ball bearing with a thickness gauge. Clearance: 0.01 — 0.15 mm (0.0004 — 0.0059 in)
If the measurement is not within specification, select a suitable snap ring and replace it.
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Installation
DisassemblyInspection
1. Check that the EGR control valve has no deformation, cracks or other damages.2. Measure the resistance between EGR control valve terminals.Terminal No.Standard2 and 122±2 -2 and 322±2 -5 and 422±2 -5 and 622±2 - ...