PFAFF 238 needle sizing

[Faster_K_Yote]

The original needle that came with this machine are as such (see attatched)
http://s805.photobucket.com/albums/yy336/Faster_K_Yote/?action=view&current=PFAFF238ORIG001.jpg
Not sure what any of it means and could use some clarification.  What I really need is a needle stronger and can handle V69 thread.  Typically sewing sunbrella. 
Thanks
Brad

[Faster_K_Yote]

Not even sure if the needles that came with it are the right ones?
Brad

[Gregg @ Keystone Sewing]

Correct needle system, 134.

I would go with a size larger, NM110/18 or a 125/20 for seaming work.

Most sailmakers would be at a size 125/20.

[Faster_K_Yote]

When I look at the needles I have there is 134 (R), is that the needle system?  The line below it references 135x5, what does that tell?

[Faster_K_Yote]

Found this from the schmetz site.
S134R Needle System

CANU: 20:05 1
134 (R)
135x5
SY 1955
DPx5

System S134R is generally used in single needle lockstitch industrial sewing machines. It is also known as 135x5, 135x7, 135x25, 1901, DPx5, and DPx7. Standard sharp point. Available in sizes: 10, 11, 12, 14, 16, 18, 19, 20, 21, 22, 23, and 24. Needles are sold in boxes of 100 only. When ordering please specify the number of boxes, not the total number of needles (i.e., quantity of 2 = 200 needles).
I'm guesing I need this needle size 18 then greg?
Gobs of info on needle sizing here, will take me a bit to wade through it.  Thanks for the help.
Brad

[Gregg @ Keystone Sewing]

http://keysew.com/Webpages/DemoImages/SchmetzNeedleChart.jpg

See this image, since we are talking about Schmetz.