JLG 740AJ ANSI Operator Manual - Manual (Page 118)

SECTION 6 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
6-22 – JLG Lift – 3121650
B. Air Filter (Deutz TD 2.9)
Lube Point(s) - Replaceable Element
Interval - Every 6 months or 300 hours of operation or as
indicated by the condition indicator
12. Fuel Filter (Propane) - GM Engine
Interval - 3 Months or 150 hours of operation
Comments - Replace filter. Refer to Section 6.5, Propane Fuel
Filter Replacement