JLG M600 Service Manual - Manual (Page 100)

SECTION 3 - CHASSIS & TURNTABLE
3-62 – JLG Lift – 3121813
Fuel Control Relay
The fuel control relay energizes the hold coil of the fuel
solenoid.
The fuel control relay is energized by the engine/
generator controller from pin J2-3.
The fuel control relay is located on the fuel solenoid
bracket on the right side of the engine.
Glow Plug Control Relay
The glow plug control relay energizes the glow plug. It is
energized by the engine/generator controller, pin J2-27.
The glow plug control relay is located on the fuel solenoid
bracket on the right side of the engine.
Glow Plug
The glow plug is a resistive heating element located in the
combustion chamber. It is used during starting at temper-
atures below 32°F (0°C).
The heater is energized by the glow plug control relay.