JLG 660SJ Service Manual - Manual (Page 100)

SECTION 3 - CHASSIS & TURNTABLE
3-50 – JLG Lift – 3120840
3.14 SPARK ARRESTER CLEANING
INSTRUCTIONS
1. Remove the cleanout plug in the bottom of spark
arrester (muffler).
2. Without causing deformation (or any type of dam-
age to the spark arrester) repeatedly tap on the
arrester near the cleanout plug. This may be enough
to begin drainage of the spark trap.
3. An industrial vacuum cleaner can do a complete job
at this point.
a. Or, IN A SAFE AREA, start the engine. Then
alternate between low idle and high idle for two
to three minutes.
b. Or, operate the engine as required by the appli-
cation for two to three minutes.
4. Install the cleanout plug.
3.15 THROTTLE CHECKS AND
ADJUSTMENTS - DEUTZ ENGINE
General
Four LEDs are incorporated tn the controller. They are as
follows:
• Red - failure: signals a problem with the system -
needs service or adjustment
• Green - clutch engaged; operation normal while sys-
tem is powered.
• Amber - motor extend
• Amber - motor retract
The controller is designed so that when the system volt-
age reaches 10.5 volts, the actuator clutch will be
released and the motor drive turned off in order to prevent
unpredictable operation from occurring.
When a failure condition occurs (i.e. position time-out) the
controller will release the clutch and turn off the actuator
motor. This will prevent unnecessary motor wear.
Procedure
NOTE: Never run fuel tank dry. Diesel engines cannot be
restarted after running out of fuel until fuel system
has been air-vented or bled of air. See Deutz Instruc-
tion Manual for procedure.
1. Power the ignition switch at the ground control
panel. Set the mid rpm.
2. Supply 12 volts of power to the white wire on the
controller. Set the high engine rpm.
NOTE: Actuator rod travel must stop slightly before lever
makes contact with throttle lever stop. Failure to do
so will burn out actuator.
3.16 THROTTLE CHECKS AND
ADJUSTMENTS - TMD 27 CONTINENTAL
ENGINE
NOTE: Never run fuel tank dry. Diesel engines cannot be
restarted after running out of fuel until fuel system
has been air-vented or ‘bled’ of air. See Continental
Instruction Manual for procedure.
Figure 3-33. Addco Adjustments - Deutz