GAC 103 Series User manual

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Governors America Corp. © 2021 Copyright All Rights Reserved
103 Series Integral Electric Actuator 4-2021-D2 PIB2045
103 Series
Integral Electric Actuator
The 103 Series Integral Actuator is a eld-proven proportional actuator
designed to mount directly to the Delphi DPG/DP210 Pump. No
external linkage or brackets are required to install this actuator. When
de-energized, the 103 Series Electric Actuator provides the function of
the fuel shuto󰀨 solenoid. This is accomplished by an internal spring that
returns the fuel metering valve linkage to the no-fuel position when the
actuator is de-energized.
Since there are no sliding parts in the 103 Series electric actuator and
the unit is sealed, outstanding reliability and no maintenance are the
resulting qualities.
♦ 12 or 24 V DC
♦ Mounts directly to Delphi DPG/DP210 Pump
♦ No external linkages or brackets required
♦ Fast response; < 45 ms
♦ Functions as a fuel shuto󰀨 solenoid when governor system is de-
energized
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INTRODUCTION
SPECIFICATIONS
POWER INPUT
Operating Voltage (B-Series)
(L-Series)
1 2 o r 2 4 V D C A v a i l a b l e
12 V DC
Normal Operating Current
(B-Series)
(L-Series)
1.9 A at 12 V DC
1.5 A at 24 V DC
1.3 A at 12 V DC
Maximum Current
(B-Series)
(L-Series)
2.7 A at 12 V DC
1.9 A at 24 V DC
1.8 A at 12 V DC
ENVIRONMENT
Operating Temperature Range -40° to +180 °F
[ - 4 0 ° t o + 8 3 ° C ]
Relative Humidity up to 100 %
Shock 20G, 11 ms
Vibration ± 4g, 25 - 100 Hz
Agency RoHS Compliant
PHYSICAL
Dimensions See Section 3 Outline Drawing
Weight 1.0 lbf
Mounting (B-Series)
(L-Series)
Directly to Delphi Type DPG /
DP210G/310G
Customer Specic Pump
MATING HARDWARE
All Models Come with mounting hardware
and O-ring
ADD103B
ADD103L
Packard Mating Connector
Customer Specic JD Mating
Connector
ADE Models Come with cable harness already
installed to mating connector
The following installation kits are needed when installing these actuators on a Delphi DPG, DP210G, or DPGE:
• ADD103B-12 12 V DC / Packard Connector with Mating Connector Kit EC1300 / With Installation Kit KT292 (O-Ring, Bolts)
• ADD103B-24 24 V DC / Packard Connector with Mating Connector Kit EC1300 / With Installation Kit KT292 (O-Ring, Bolts)

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Governors America Corp. © 2021 Copyright All Rights Reserved
103 Series Integral Electric Actuator 4-2021-D2 PIB2045
3OUTLINE DIAGRAMS
ADD103 B-SERIES
ADD103 L-SERIES

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Governors America Corp. © 2021 Copyright All Rights Reserved
103 Series Integral Electric Actuator 4-2021-D2 PIB2045
Do not force the actuator into position. If you feel any ob-
struction, simply rotate the actuator further counter clock-
wise while inserting it into pump.
1. Remove the plug in the access port (Figure 1).
2. Apply clean diesel fuel to the o-ring (Figure 2) included with the
actuator. This allows the actuator to slide easily into position on the
pump and protects the o-ring.
3. Temporarily connect the actuator’s leads to the Battery terminals
on the speed control unit. This will energize the actuator and place
the actuator’s lever at the full-fuel position. Placing the actua-
tor in the full fuel position ensures the lever properly engages the
pump’s fuel-metering valve linkage.
4. See Figure 3 (before energizing actuator) and Figure 4 (actuator is
energized) and notice the positional di󰀨erence of the lever located
on the bottom of the actuator. Battery polarity does not have to be
observed with respect to the actuator coil.
5. With the engine stopped, place the fuel-metering valve linkage in
the fuel pump in full fuel position (Figure 5).
4INSTALLATION
NOTE
Once the plug is removed, make sure no con-
tamination or fragments can get into the fuel
pump.
You must keep the actuator energized with the battery
voltage until the installation is completed.
Before installing the actuator to the fuel pump, make sure that the engine can NOT be started. Remove the battery connection
from the starter-motor and depress the emergency STOP button.
SCREW MOUNTING HOLES
VALVE LINKAGE
TOP
BEFORE
ENERGIZING ACTUATOR ACTUATOR ENERGIZED
• Use an overspeed shutdown device, independent of the governor system, to prevent loss of engine control which may
cause personal injury or equipment damage.
• Do not rely exclusively on the governor system electric actuator to prevent overspeed. A secondary shuto󰀨 device, such
as a fuel solenoid must be used.
ACCESS PORT PLUG
ACTUATOR LEADS
O-RING
Figure 2
Figure 3
Figure 1
Figure 4
Figure 5

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Governors America Corp. © 2021 Copyright All Rights Reserved
103 Series Integral Electric Actuator 4-2021-D2 PIB2045
6. Rotate the actuator slightly CCW (Figures 6 and 7) while in-
serting the actuator into the Fuel Pump housing.
7. Slowly push the actuator into the Access Port of the pump.
See Figure 7, notice the actuator is turned slightly CCW and
that bolt-holes are slightly misaligned. This ensures the ac-
tuator lever makes proper contact with the fuel mechanism
inside the pump.
8. Once the actuator is fully inserted into the Access Port, align
the Screw Mounting holes, insert and hand-tighten the four
Mounting Screws. Tighten all four mounting bolts to 5-6 N∙m
(Figure 8).
9. You can now check that the actuator is functioning properly by
turning the DC power o󰀨 and on. You should hear a clicking
sound, which is the coil armature inside the actuator striking
its zero-fuel position stop.
10. Connect the 103 Series actuator to the proper terminals on
the speed control unit as described in the speed control unit’s
literature.
11. Reconnect the starter-motor to the battery.
See GACs video for further help with installa-
tion.
Figure 6
Figure 7
Figure 8
4INSTALLATION (CONTINUED)

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Governors America Corp. © 2021 Copyright All Rights Reserved
103 Series Integral Electric Actuator 4-2021-D2 PIB2045
If the electronic governor system fails to operate and the actuator is suspected, the following tests can determine the integrity of the
103 Series actuator.
Check the resistance of the coil by disconnecting the actuator from the control unit and connecting your meter to the ends of the wires
coming from the actuator. This resistance should be approximately:
1. Remove the actuator from the pump.
2. Hold the actuator with the lever side down.
3. Manually move the actuator’s shaft through its entire range of motion by depressing the actuator lever. You should not feel any
binding or sticking.
4. Energize the actuator to full fuel (follow steps in speed control publication) while observing the movement of the lever.
5. The actuator should operate smoothly throughout its entire stroke without any interruptions in motion.
6. If the 103 Series actuator passes these tests, the problem is likely elsewhere in the speed control unit, speed sensor or fuel system.
Refer to the speed control unit troubleshooting publication or fuel pump information.
6TROUBLESHOOTING
B - SERIES L-SERIES
2.3 Ω 12 V DC
7.8 Ω 24 V DC
5.3 Ω 12 V DC
Before starting this procedure, make sure that the upper sur-
face of the pump is clean of all dirt and grime. Do not force or
over-tighten any connections while completing this procedure.
1. Check the clearance on the Overshoot Protection Screw.
This screw may need to be replaced with a shorter screw.
A 10 mm M6 screw is recommended. This will provide
the adequate clearance needed to install the 103 Series
actuator.
2. Adjust droop by loosening the locking-bolt and turn the
Droop Control allen screw CW until it cannot be turned
any further.
3. Adjust the Allen Screw in a counter-clockwise direction
one and half turns and tighten lock nut.
4. Set the no-load engine speed to 1950 RPM by loosen-
ing the Trunnion (Locknut) and adjusting the Speed Set
Screw. This adjustment requires turning the Speed Set
Screw approximately nine turns clockwise.
5. Once you have the engine running at 1950 RPM, shut the
engine down and disconnect the starter-motor from the
battery.
5WIRING
The 103 Series Electric Actuator is designed in both a 12 V DC or 24 V DC (B-Series) and the a 12 V DC L-Series. These actuator
models are identied in Chart A. You must be sure that the actuator voltage matches the battery supply voltage when ordering the
actuator. An actuator cable harness is used to connect the 103 Series actuator to the selected GAC speed control unit. There are no
polarity connections from the speed control unit to the actuator which need to be observed. For more information on additional wiring,
see installation manual for your specic to the speed control unit.
PREPARING THE FUEL PUMP
MEASURE COIL RESISTANCE at ROOM TEMPERATURE
MEASURE COIL ISOLATION
Check the resistance from one wire to the housing of the actuator, then from the remaining wire to the housing. In both cases you
should get a reading >1M Ω
CHECKING FOR PHYSICAL OBSTRUCTION