JLG 680S Service Manual - Manual (Page 29)

SECTION 1 - SPECIFICATIONS
3121234 – JLG Lift – 1-13
Propane Fuel System Pressure Relief
THE PROPANE FUEL SYSTEM OPERATES AT PRESSURES UP TO
312 PSI (21.5 BAR). TO MINIMIZE THE RISK OF FIRE AND PER-
SONAL INJURY, RELIEVE THE PROPANE FUEL SYSTEM PRES-
S U R E ( W H E R E A P P L I C A B L E ) B E F O R E S E R V I C I N G T H E
PROPANE FUEL SYSTEM COMPONENTS.
To relieve propane fuel system pressure:
1. Close the manual shut-off valve on the propane fuel
tank.
2. Start and run the vehicle until the engine stalls.
3. Turn the ignition switch OFF.
RESIDUAL VAPOR PRESSURE WILL BE PRESENT IN THE FUEL
SYSTEM. ENSURE THE WORK AREA IS WELL VENTILATED
BEFORE DISCONNECTING ANY FUEL LINE.
1.12 SERIAL NUMBER LOCATION
A serial number plate is affixed to the left rear side of the
frame. If the serial number plate is damaged or missing,
the machine serial number is stamped on the left side of
the frame.
Figure 1-4. Serial Number Locations