What is "dirty cam"

[zhi ju]

I read old poster and found a poster from SYX
"We have fixed the problem: dirty cam. We make it clean and the problem have gone away. "

What is cam.? where?

I have baseline shift problem and try to figure out!

[syx]

Cam is a circle shape kit that connects with the end side of the piston. It rotates and moves the pistons. I must get Mr. Jupille's agreement to show his schematic picture of a pump in this forum…
In that time we got unstable baseline. After a long inspection we found that the piston did not move correctly. We opened the pump, cleaned up the dusty cam, and gave small portion of oil on it.

[tom jupille]

Permission granted.

[zhi ju]

Thank both of you!

[JM]

The right word is "cam shaft" a machanical part of motor-piston drive assembly.

JM

[syx]

Thanks to Mr Jupille...
Here is the picture:

[syx]

I have baseline shift problem and try to figure out!

I think to check the cam is the last option. You should check the others simple possibilities that can be the reason why the baseline shift, e.g. bubbles, lamp failure, electrical interferences from other device, etc.