JLG 680S Operator Manual - Manual (Page 113)

SECTION 6 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
3121233 – JLG Lift – 6-29
18. Electronic Pressure Regulator (LP only)
Interval - 3 Months or 150 hours of operation
Comments - Drain oil build up. Refer to Section 6.6,
Draining Oil Build Up From The Propane Regulator
(Prior to S/N 0300134626)
19. Fuel Filter (Propane) - GM Engine
Interval - 3 Months or 150 hours of operation
Comments - Replace filter. Refer to Section 6.7, Propane
Fuel Filter Replacement