(i) Set switch S1 to connect power (PS) to coil
L1 and apply 700 ma 40 ma. Pressure at Al port
Leave governor linkage loose to accommodate
(gage Gl) shall be 0 to 40 psi and pressure at A2 port
(gage G2) shall be 310 to 400 psi.
(2) Throttle Position Transducer Test.
switch in the RUN position.
(a) With voltmeter (Ml), resistor (Rl) and 120
(+ 1%, 60 Hz) power source connected as shown in
Do not attempt to start the generator set.
(b) With the tranducer body locked in place by
its set screw, loosen the tranducer core set screw and
move the core relative to the body until a minimum
switch in the override (ON) position.
voltage (0.5 to 2.5 volts) is obtained on the transducer
secondary, as indicated on M1.
(4) Beginnig at the full counterclockwise posi-
tion, rotate the fuel injection pump shutoff lever in the
(c) Move the piston gradually towards the ful-
clockwise direction until a slight resistance is felt.
ly closed throttle position. The transducer secondary
Hold the shutoff lever in this position.
voltage, indicated by meter M1 shall increase in a
linear manner to a maximum of 48 to 55 volts.
( d ) Repeat these adjustments until the
transducer secondary voltage increases linearly from
the lowest possible value to a maximum value over the
governor linkage hook engaging the meter-
entire 1.0 inch displacement of the piston.
ing valve arm.
(e) When final adjustment is made, lock the
transducer core in place with the transducer core set
(5) Move the hydraulic actuator unit piston to
the extended position for 69-600-3, retracted position
(f) Remove the gages, meter, and power sup
(6) Adjust the hydraulic actuator governor link-
g. Installation and Final Adjustment.
age until it fits between the actuator unit piston clevis
and the fuel injection pump shutoff lever.
(1) Install hydraulic actuator unit in reverse
order of removal procedures.