JLG 4394RT Service Manual - Manual (Page 20)

SECTION 1 - SPECIFICATIONS
1-10 – JLG Lift – 3121249
7. Once all of the oil has been drained, reinstall the LPG
fuel temperature sensor and reconnect the electrical
connector.
8. Open the fuel tank manual valve.
9. Start the engine and verify all connections are secure.
10. Dispose of any drained oil per local regulations in a
safe and proper fashion.
Propane Fuel Filter Replacement
REMOVAL:
1. Relieve the propane fuel system pressure. Refer to Pro-
pane Fuel System Pressure Relief.
2. Disconnect the negative battery cable.
3. Slowly loosen the Filter housing retaining bolt and
remove it.
4. Pull the filter housing from the Electric lock off assem-
bly.
5. Locate Filter magnet and remove it.
6. Remove the filter from the housing.
7. Remove and discard the housing seal.
8. Remove and discard the retaining bolt seal.
9. Remove and discard mounting plate to lock off O-ring
seal.
INSTALLATION:
BE SURE TO REINSTALL THE FILTER MAGNET INTO THE HOUS-
ING BEFORE INSTALLING NEW SEAL.
1. Install the mounting plate to lock off O-ring seal.
2. Install the retaining bolt seal.
3. Install the housing seal.
4. Drop the magnet into the bottom of the filter housing.
5. Install the filter into the housing.
6. Install the retaining bolt into the filter housing.
7. Install the filter up to the bottom of the electric lock off.
8. Tighten the filter retaining bolt to 106 in.lbs. (12 Nm).
9. Open manual shut-off valve. Start the vehicle and leak
check the propane fuel system at each serviced fitting.
Refer to Propane Fuel System Leak Test.
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
2
3
4
5
6
7
8
9
10
11
12
1. Electric Lock Off Solenoid
2. Mounting Plate
3. Housing Seal
4. Filter Magnet
5. Filter Housing
6. Seal 7. Electrical Connector
8. Fuel Outlet
9. O-ring
10. Filter
11. Fuel Inlet
12. Retaining Bolt
Figure 1-3. Filter Lock Assembly