JLG 110HX ANSI Service Manual - Manual (Page 56)

SECTION 2 - PROCEDURES
2-32 – JLG Lift – 3120636
2.14 LIMIT SWITCH ADJUSTMENTS
Boom Limit Switch
The boom limit switch is located on the left side of the
base section of the boom. The switch will activate when
the boom is extended past a set point with the axles
retracted. When activated, the switch cuts out Telescope
Out and Lift Up. Adjust the limit switch to trip at 10 feet (3
meters) of boom extension.
Horizontal Cut-Out Switch
The horizontal cut-out switch is located on the right side of
the boom at the boom pivot pin. When activated, the
switch cuts out the High Engine, High Drive and 2 Speed
functions. Adjust the switch to activate when the boom
reaches horizontal.
2.15 THROTTLE CHECKS AND
ADJUSTMENTS - DEUTZ F4L-912
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 Deutz
instruction manual for procedure.
1. Disconnect actuator cable from throttle lever. With
the aid of an assistant, start the engine and allow it
to come up to operating temperature. Adjust throttle
lever stop until engine runs at 1800 RPM. Shut down
engine. Reattach actuator cable to throttle lever,
making sure that low (mid) engine setting remains
the same. If necessary, adjust slide pin to contact
low (mid) engine limit switch at 1800 RPM. Shut
down engine.
2. Start the engine from ground controls and allow to
come up to operating temperature. Inside the
ground control terminal box, attach a “hot” wire from
the 12 Volt power (red) wire at the PLATFORM/
GROUND SELECT switch to terminal 1 (brown/black
wire) on the relay circuit card at the top of the
ground control terminal box. This will cause the
engine to run as if HIGH ENGINE and HIGH DRIVE
are activated. Adjust slide pin to contact high engine
limit switch at 2500 RPM. Remove “hot” wire from
terminal 1 and from PLATFORM/GROUND SELECT
switch. Shut down engine.
NOTE: Actuator cable travel must stop slightly before lever
makes contact with throttle lever stop. Failure to do
so will burn out actuator.
2.16 THROTTLE CHECKS AND PRECISION
GOVERNOR ADJUSTMENTS - FORD
ENGINE
Checks
1. Check that anti-dieseling solenoid is operating. If
solenoid is operating, an audible click at the carbu-
retor should be heard when the ignition is switched
on.
2. Check throttle linkage for smooth operation by rotat-
ing throttle lever by hand to full throttle position, then
slowly back to idle position, felling closely for stick-
ing or binding. To accomplish this, the throttle must
first be disconnected.
Automatic Choke Adjustments
1. At 70°F the choke plate should be open 1/32" (not
touching the choke bore).
2. If the ambient temperature is not 70°F, an additional
adjustment is required.
a. Loosen the three cover plate screws.
b. Adjust the cover to open the choke plate 1/32".
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1/32"