INTRODUCTION: Shock Adjustment

Home » Equipment » INTRODUCTION: Shock Adjustment




Shock adjustments are extremely important inside the wash tunnel. Failure to properly set shock adjustments could cause you to wear out shocks faster than you otherwise would. The average Z-wrap shock – when properly adjusted – should last around 50,000 cars.


Bad shocks = decreased cleaning performance and decreased equipment optimization.


How to Tell if a Shock is Bad:

Look for fluid dripping out of the shock between where the two halves meet.


Check that the shock pushes in smoothly with some resistance and also pushes itself fully back out in a smooth motion.


How to Adjust the Shock:

Shocks are adjusted by using a combination of the wrap bump stops and the mounting pin adjustment holes. It is important when adjusting the shock that you keep in mind it should never compress fully in, nor should it extend fully out.


If your shock is compressing in too far, you may try to adjust it using the adjustment holes. If you don’t have enough adjustment, check for the wrap to be over centerline as this indicates that the inner bump stop is not set properly. Adjust the inner bump stop so the wrap rests on the center line but not past it.


If your shock is overextending you may want to check for the wrap to be pushing back too far off the edge of the conveyor. The wrap core should sit just on the outside of the conveyor when you push it back by hand. If the wrap is going too far past this could cause premature shock damage.



The number one cause of shock failure is failure to have shocks properly adjusted. If you notice that you are going through shocks too quickly, be sure to check that the shock never bottoms out or hyper-extends. When properly adjusted the shocks play a crucial role in the wash and should be optimized to a very high standard.


Tags: , , , ,