MBM 408A Operation Manual page 24

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Fine Adjustment for Table 1
Single
folding
Gate
folding
Letter
folding
Zigzag
folding
Double
parallel
folding
Fold-out
folding
Fold type
Table 1 is not used
Direction to turn the
Plane (A) Table 1 fine adjustment
Long
Short
Long
Short
Long
Short
Long
Short
Long
Short
24
knob