ENGINE CONTROL
The engine governor is available only in electronic types but not in
mechanical types.
ENGINE WITH AN ELECTRONIC GOVERNOR
• The engine with an electronic governor is not equipped with a control
lever for the injection pump.
• An engine control lever is available as an option, and the engine
control unit can be controlled externally by connecting the engine
control lever to the connector (chassis harness on the left side
frame of transmission).
• The engine control lever should be attached on the chassis side,
using an extension harness.
• The characteristics of the governor can be switched by connecting
or disconnecting the two harness connectors [junction A (also used
as PTO switch) and junction B] at the left side and right side (glove
box) of the instrument panel.
• Positions of the junctions.
1. About the applications of the engine control
Typical chassis
Standard
chassis
Dump
truck
Custom-
made
chassis
Transmission PTO
Not
provided
Provided Provided
Transmission PTO switch
(Also used as junction A)
Not
provided
(Discon-
nected)
Provided
(connected)
Provided
(connected)
Switching gov-
ernor charac-
teristics during
operation
PTO
switch
OFF
Driving
mode
Driving
mode
Driving
mode
PTO
switch ON
All speeds All speeds
DPF control
(NOTE 1)
PTO
switch
OFF
Operated
Operated Operated
PTO
switch ON
Not
operated
Not
operated
Long-time idle control
(NOTE 2)
Automatically operated whether the PTO
switch is turned ON or OFF
Junction B
Discon-
nected
Discon-
nected
Connected
External engine control
lever
Not required Not required Required
Throttle opening (Engine
speed control)
Accelerator
pedal
Accelerator
pedal
Max
selected
(NOTE 3)
C23
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