JLG M400 Operator Manual - Manual (Page 94)

SECTION 6 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
6-12 – JLG Lift – 3121644
3. Hydraulic Tank Lube Point(s) - Fill Cap
Capacity - 4 Gal. (15.1 L)
Lube - HO
Interval - Check Level daily; Change every 2 years or 1200
hours of operation.
Comments - On new machines, those recently overhauled, or
after changing hydraulic oil, operate all systems a minimum of
two complete cycles and recheck oil level in reservoir.
E400
M400