JLG 740AJ Service Manual - Manual (Page 224)

SECTION 4 - BOOM & PLATFORM
4-8 – JLG Lift – 3121160
NOTE: When installing snap rings make sure they are
seated in the pin groove and closed properly.
6. Install more pins, washers, and snap rings into all
the links where a rivet was removed.
CLOSED SNAP RING
SNAP RING NOT
CLOSED PROPERLY