JLG 600AJ Operation And Safety Manual page 128

6. Hydraulic Charge Filter
Interval - Change after first 50 hrs. and every 6 months or
300 hrs. thereafter or as indicated by Condition Indicator.
31215030
SECTION 7 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
7. Hydraulic Tank
Lube Point(s) - Fill Cap
Capacity - 30.6 gal. (115.8 L) Tank; 40 gal. (151.4 L) System
Lube - HO
Interval - Check Level daily; Change every 2 years or 1200
hours of operation.
NORMAL OPERATING
RANGE WITH BOOM
IN STOWED POSITION
7-21