Noob looking for help - after homing Z axis is still running into limit switches

Hello gang.
This was probably munched to death already, still I am having problems with setting Z soft limits properly. The issue is that Z axis is not stopping on sift limits and still running into limit switches after successful homing. I am using shared home/limit switch on the top of Z and also on the bottom.   Below is relevant part of the INI file.  Full INI and HAL files are attached.  What is my problem ?  

- make sure the direction is correct, page down or Z- should jog down
- make sure the homing direction is correct, home_search_velocity will change direction by adding - in front of value
- make sure the scaling is correct
- make sure the actual limits switches are outside the soft limits by at least 1-3mm.

Thanks Tommy. 

- make sure the direction is correct, page down or Z- should jog down
Verified - OK
- make sure the homing direction is correct, home_search_velocity will change direction by adding - in front of value
Verified  - Homing is correct 
- make sure the scaling is correct
Verified - OK
- make sure the actual limits switches are outside the soft limits by at least 1-3mm.
That is probably my confusion - how to do that? 

Easy, home the machine, jog the Z axis down till you hit the switch, check the position in DRO, add that value minus (well plus in this case) a mm or two in the ini file, close and run LinuxCNC again to check if it hits the switch again.