JLG 1250AJP Operator Manual - Manual (Page 116)

SECTION 6 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
6-26 – JLG Lift – 3121170
B. Oil Change w/Filter - Deutz TCD2.9
Lube Point(s) - Fill Cap/Spin-on Element
Capacity - 2.4 Gallon (8.9 L)
Lube - EO
Interval - Check level daily; change every 500 hours or six
months, whichever comes first. Adjust final oil level by
mark on dipstick.