Added the front stand offs and accompanying screw as separate part numbers, rather than the 525-116 kit.
Added the note (order P/N 525-745) to the 510-837 head cushion foam spacer assembly, added note that the nose block device includes the nose block pad and created modular BlowAparts.
Corrected the bent tube assembly w/O-rings part number from 555-155 to 555-168
Updated layout. Corrected front stand off part number from 540-059 to 540-039.
Updated the description of the 555-167 to 47/77 Bent Tube.
Removed, "B" designation from location #12 P/N 505-024 Side Block Assembly and P/N 505-025 Side Block Assembly, Brass. Added "Order P/N 555-168" to location #14 47/77 Bent Tube.
Corrected location #70 part number to 505-746.