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 UG8D Governor (3508/3512 Gen. Set
Woodward 2301 Electronic Governors
Engines)
(Gen. Set Engines Only)
The 2301 Nonparallel Control gives exact engine speed
control. The system measures engine speed constantly
and makes necessary corrections to the engine fuel
setting through an actuator connected to the fuel system.
The 2301 Parallel Control has two functions: Exact
engine speed and kilowatt load sharing. The system
measures engine speed constantly and makes
necessary corrections to the engine fuel setting through
an actuator connected to the fuel system.
The actuator is connected to the fuel system by linkage.
It changes the electrical input from the control box to
mechanical output that changes the engine fuel setting.
The UG8D Governor will have, as standard equipment,
For example, if the engine speed was more than the
either the 24V to 32V shutdown solenoid to be used with
speed setting, the control box will decrease fuel to the
electric shutoffs or the hydra-mechanical shutoff system.
engine.
The UG8D Governor has no smoke limiter but does have
the usual adjustments for droop, load limit and speed
override.
UG8L Governor (3508/3512 Industrial
Engines)
The UG8L Governors have 10% regulation and a boost-
acutated smoke limiter. The UG8L Governor also has
either a hydraulic/pneumatic shutoff cylinder or an
electric shutoff solenoid that moves the fuel control
linkage to the fuel-off position. The hydraulic/pneumatic
cylinder is normally for use with the hydra-mechanical
protection device. This governor is equipped with speed
droop, however, it must be adjusted inside the governor.
See Service Manual for adjusting speed droop.
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