Bosch 7100 Specifications download pdf (Page 3)

SECTION EG 60-5A

ENGINE

GOVERNING SYSTEMS

[INTERNATIONAL

AGB 270/280

130mm

5.125"

143mm

5.625"

203mm

EG-195

102mm

4.0625"

Figure 1. AGB 270/280 actuator dimensions

DESCRIPTION

The AGB 270/280 actuator controls the position of the Rack position is proportional to the amount of current

fuel injection pump rack based on an input from the flowing through the actuator coils and is counter-

speed control unit. An AC frequency signal (propor- balanced by internal springs. A mechanical override

tional to speed) generated by the magnetic speed sen- of the fuel rack is provided through the shaft. This

sor is constantly fed into the speed control unit. The shaft can be connected to an external electric or pneu-

signal is compared with the present frequency (speed matic solenoid or a manually operated shutdown de-

setting). If the frequencies are not identical, a change vice to move the fuel rack to the no-fuel position and

in current from the speed control unit changes the hence shut down the engine. The actuator housing is

magnetic force in the actuator. The change causes an sealed against engine environment with gaskets at all

angular rotation of the actuator shaft and linear reposi- openings so steam or other water based cleaning will

tioning of the fuel injection pump racks, not affect the system's operation. No maintenance is

necessary.

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Section EG 60-4

1 2 3 4 5 6 7 8 9 10 11

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Bosch 7100 Specifications Page 3