JLG 80HX_HX+6_HXER Service Manual - Manual (Page 52)

SECTION 2 - PROCEDURES
2-30 – JLG Lift – 3120863
2.15 THROTTLE CHECKS AND
ADJUSTMENTS - DEUTZ ENGINE (SEE
FIGURE 2-16.)
NOTE: Never run the fuel tank dry. Diesel engines cannot be
restarted after running out of fuel until the fuel sys-
tem has been air-vented or ‘bled’ of air. See the
Deutz Instruction Manual for the proper procedure.
1. Disconnect the actuator cable from the throttle lever.
With the aid of an assistant, start the engine and
allow it to come up to operating temperature. Adjust
the throttle lever stop until engine runs at 1800 RPM.
Shut down the engine. Reattach the actuator cable
to throttle lever making sure that low engine setting
remains the same. If necessary, adjust slide pin to
contact low engine limit switch at 1800 RPM. Shut
down engine.
2. With the aid of an assistant, start engine from basket
and allow to come up to operating temperature. Dis-
connect proportional dump valve wire. Activate foot-
switch. Turn on HIGH ENGINE switch. Hold drive
controller in full drive position. Adjust slide pin to
contact high engine limit switch at 2400 RPM. Shut
off all switches and controllers. Reconnect propor-
tional dump valve wire.
NOTE: Actuator cable travel must stop slightly before lever
makes contact with throttle lever stop. Failure to do
so will burn out actuator.
NOTE: Early machines are at idle until a function is acti-
vated. Later machines are at idle only at platform
without footswitch activated. Therefore when setting
low engine speed on later machines it will not be
necessary to disconnect bang-bang dump valve wire
or operate a bang-bang function. Just activate foot-
switch to get low engine.