New Home Timing specs?

Question

Hi,Saw in one of your posts that you seem to have some New Home service manuals. Would you be able to tell me what the timing tolerances are? I've found this pic online:http://www.sewusa.com/Sewing_Machine_Repair/Repair_Pictures/timing3.gifFrom your post it seems like 23b is probably the same (.05mm), I'm wondering if 23a is the same too (1.2mm) as mine is about 5mm or so.Thanks.