Fluid Testing - Heavy Duty Components, LLC

FLUID TESTING

Procedure for Taking Samples of Silicone Fluid on Damper

Fluid samples may be taken from dampers equipped with removable fill plugs. In most cases two of these are positioned diametrically opposite each other on the damper cover. If reasonable access to one of these plugs is possible, the damper may remain on the engine during this procedure. In other cases the damper must stand in the normal vertical position during sampling. It is recommended that the damper is rotated until the two plugs are approximately horizontal and the damper remains in this position for a minimum period of one hour before the sampling procedure begins. In general, two types of threads are used for the fill holes and therefore the sampling containers are threaded differently at each end. *Sampling kits are provided at no charge.

Assuming the thread size is known, prepare sample container by removing cap nut from end to be inserted into damper.

Remove fill plus keeping container ready for immediate insertion.

Screw sampling container into fill hole.

Remove other cap nut.

Allow fluid to reach the open end of the container. This could take seconds or over an hour depending on fluid condition and other factors. To speed up the process, you may turn the damper 180 degrees.

Replace cap nut immediately after fluid flows from the open end of the container.

Keep fill plugs ready for immediate insertion. Unscrew the container from the fill hole.

Immediately install the new fill plugs with sealant if required.

Tighten to:

1.5 kpm (type M10 X 1)

4.5 kpm (type M16 X 1.5)

Replace cap nut to the container and insure both cap nuts are fully screwed on. Do not over tighten.

*Fluid sampling kits are provided at no charge, fee applied for fluid analysis.

Send your sample to Heavy Duty Components for analysis.