JLG 1850SJ Operator Manual - Manual (Page 149)

SECTION 7 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
3121618 – JLG Lift – 7-17
10. Oil Change w/Filter - Deutz
Lube Point(s) - Fill Cap/Spin-on Element
Capacity - 9.6 Quarts (9.1 L)
Lube - EO
Interval - Check level daily; change every 500 hours or yearly,
whichever comes first. Adjust final oil level by mark on dipstick.
11. Fuel Filter - Deutz
Lube Point(s) - Replaceable Element
Interval - Every year or 500 hours of operation