A power recirculating ball steering gear has repeated pitman shaft oil seal failures. The most likely cause of this problem is:
A) Loose sector lash adjustment
B) Tight worm shaft bearing preload adjustment
C) Loose steering gear mounting bolts
D) Worn pitman shaft bushing or bearing

Question

Quizplus · Accepted Answer

Worn pitman shaft bushing or bearing is the most likely cause of repeated pitman shaft oil seal failures. This is because when the bushing or bearing wears out, it allows the pitman shaft to move up and down in the steering gear housing, causing the oil seal to wear out more quickly. Loose sector lash adjustment, tight worm shaft bearing preload adjustment, or loose steering gear mounting bolts could cause other issues with the steering gear, but they are not likely to be the primary cause of the repeated oil seal failures.

A Power Recirculating Ball Steering Gear Has Repeated Pitman Shaft