JLG 1850SJ Service And Maintenance Manual page 247

Make sure that all snap rings are closed and seated.
CLOSED
An open snap ring is shown below.
A snap ring that is not seated is shown below.
3121619
A seated and closed snap ring is shown below.
OPEN
10-24 x 0.812 button torx socket head with blue locking patch:
• Tighten to 45-50 in.lbs. (5-5.6 Nm).
• Use T-25 torx bit.
• Do not reuse this screw. After removing replace with a new
one.
SECTION 4 - BOOM & PLATFORM
4-85