JLG 660SJ ANSI Service Manual - Manual (Page 29)

SECTION 1 - SPECIFICATIONS
3120718 – JLG Lift – 1-11
1.11 SERIAL NUMBER LOCATIONS
A serial number plate is affixed to the left rear side of the
frame. If the serial number plate is damaged or missing,
the machine serial number is stamped on the left side of
the frame.
Figure 1-2. Serial Number Locations