JLG 450A_AJ Series II Operator Manual - Manual (Page 113)

SECTION 6 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
3121289 – JLG Lift – 6-33
20. Electronic Pressure Regulator (LP only)
Interval - 3 Months or 150 hours of operation
Comments - Drain oil build up. Refer to Section 6.5, Propane
Fuel Filter Replacement.
21. 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.