JLG 4394RT Service Manual - Manual (Page 19)

SECTION 1 - SPECIFICATIONS
3121249 – JLG Lift – 1-9
Fuel Filter (Propane) - GM
• Interval - 3 Months or 150 hours of operation
• Comments - Replace filter. Refer to Propane Fuel Filter
Replacement
Draining Oil Build Up From The Propane
Regulator
During the course of normal operation oils may build
inside the primary and secondary chambers of the pro-
pane pressure regulator. These oils may be a result of
poor fuel quality, contamination of the fuel supply chain,
or regional variation in the make up of the fuel. If the build
up of the oil is significant this can effect the operation of
the fuel control system. Refer to Section 1.13, Operator
Maintenance for maintenance intervals. More frequent
draining may be required if the fuel supply has been con-
taminated.
FOR BEST RESULTS WARM THE ENGINE TO OPERATING TEM-
PERATURE BEFORE DRAINING. THIS WILL ALLOW THE OILS TO
FLOW FREELY FROM THE REGULATOR.
1. Move the equipment to a well ventilated area. Ensure
there are no external ignition sources.
2. Start the engine and bring to operating temperature.
3. With the engine running, close the manual tank valve
and run the engine out of fuel.
4. Push in the Emergency Switch once the engine stops.
5. Disconnect the electrical connection to the LPG fuel
temperature sensor in the auxiliary fuel port of the EPR.
6. Remove the retainer clip for the LPG fuel temperature
sensor and remove the sensor from the regulator body.
NOTE: Have a small container ready to collect oil that will
drain freely from the regulator at this point.