Maeda MC815C, Operation Manual, Page: 368 / 426

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6. Pull out the shaft lock pin of the position pin (A1) of the
stowage bracket B (22) to pull out the position pin (A1)
completely.
NOTES
You need this position pin (A1) you have just pulled out to
connect the fly jib and the left section of the fly jib mounting
bracket (27).
7. Pull out the position pins (C1, C2) from the right section of
the fly jib mounting bracket (26).
NOTES
You need these position pins (C1, C2) you have just pulled out
to connect the fly jib and the right section of the fly jib mounting
bracket (26).
8. Using the position pin (B2) of the stowage bracket A (21) as
a pivot point, pull out the fly jib base (4) to the main boom tip
side by holding its handle (H4) and align the holes (A, B) of
the right section of the fly jib mounting bracket (26) with the
hole of the fly jib (4).
When you pull out the fly jib, do not hold the pin hole, but
hold the handle (H4).