JLG 660SJ Service Manual - Manual (Page 154)

SECTION 3 - CHASSIS & TURNTABLE
3-104 – JLG Lift – 3121202
Propane Fuel Filter Replacement
REMOVAL
1. Relieve the propane fuel system pressure. Refer to
Propane 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
assembly.
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 hous-
ing.
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.
Electronic Pressure Regulator (EPR)
Assembly Replacement
The EPR assembly is a made up of two separate compo-
nents. The Voice Coil Section is not serviceable and can
only be replaced as an assembly. The pressure regulator
section is serviceable and will be detailed in this section.
REMOVAL
1. Relieve the propane fuel system pressure. Refer to
Propane Fuel System Pressure Relief.
2. Disconnect the negative battery cable.
3. Slowly remove the fuel inlet fitting at the Electric
Lock Off.
NOTE: Residual vapor pressure will be present in the fuel
system.
4.Disconnect the electrical connector to the Electric Lock
off.
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 3-84. Filter Lock Assembly
1. Pressure Regulator Section
2. Fuel Inlet
3. Coolant Passage 4. Primary Test Port
5. Secondary Test Port
6. Voice Coil Section
Figure 3-85. EPR Assembly