JLG 4394RT Service Manual - Manual (Page 139)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3121249 – JLG Lift – 3-103
Fuel Components
ALLOW ENGINE AND COMPONENTS TO COOL DOWN BEFORE
SERVICING.
REMOVAL:
1. Disable machine operation.
2. Disconnect, label and cap all fuel lines (3, 4, 6, 7, 9,
10).
NOTE: Fuel will still be in the fuel lines. Drain the lines and
store fuel in a suitable container.
3. Remove the bolts, nuts and washers attaching the
fuel pump (1), fuel filter (5) and fuel regulator (8) to
the machine.
INSTALLATION:
1. Follow Removal Steps in reverse.
2. Uncap and connect the fuel line (3) to the supply
valve of the fuel tank (2) and the fuel pump (1).
3. Uncap and connect the fuel line (4) to the fuel pump
and fuel filter (5).
4. Uncap and connect the fuel line (7) to the fuel filter
and fuel regulator (8).
5. Uncap and connect the fuel line (9) to the fuel regu-
lator and the return valve on the fuel tank.
6. Uncap and connect the fuel line (10) to the fuel regu-
lator and the fuel rail on the engine.
1
2 3
4
5
6
8 9 10
1. Fuel Pump
2. Fuel Tank
3. Fuel Line - Supply from Tank
4. Fuel Line - to Fuel Filter
5. Fuel Filter
6. Fuel Line - to Fuel Pump
7. Fuel Line
8. Fuel Regulator
9. Fuel Line - Return to Tank
10. Fuel Line - to Engine
Figure 3-75. Fuel Components (GM Engine)