Jlg 40H Service Manual User Manual download pdf (Page 55)

SECTION 2 - PROCEDURES

3120240 – JLG Lift – 2-35

2.19 THROTTLE CHECKS AND

ADJUSTMENTS - DEUTZ F3L912

ENGINE. (SEE FIGURE 2-10.)

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.

a. 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

2000 RPM. Shut down engine. Reattach 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 2000 RPM. Shut down engine.

b. With the aid of an assistant, start engine from

basket and allow to come up to operating tem-

perature. Disconnect proportional dump valve

wire. Activate footswitch. Turn on HIGH ENGINE

switch. Hold drive controller in full drive position.

Adjust slide pin to contact high engine limit

switch at 3000 RPM. Shut off all switches and

controllers. Reconnect proportional 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.

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.

2.20 THROTTLE CHECKS AND

ADJUSTMENTS - DEUTZ ENGINE

F3L1011. (SEE FIGURE 2-11.)