TP-6774 2/14a46 Section 7 Controller
1
1. Sound shield roof
2. Wing nut
3. Alternator-end door
4. Service-side door
5. Front rail
6. Engine-end door
2
2
4
3
5
6
Figure 7-3 Sound Shield Roof Removal
9. Loosen and remove the four controller mounting
screws securing the controller and carefully lift the
controller.
Note: Be careful of the leads and harness
connected to the controller.
1. Controller mounting screws (4 ea.)
1
Figure 7-4 Controller Mounting Screws
10. Note the connections on the back of the controller
and then disconnect wiring harness plugs P1
(35-pin plug) and P2 (8-pin plug) from the ADC IId.
SeeFigure7-5.
1
GM79009-A
1. P1
2. P2
2
Figure 7-5 Controller Connections
11. Remove the old controller.
12. Reconnect P1 (35-pin plug) and P2 (8-pin plug) to
the new controller assembly.
13. Mount the new controller assembly onto the
junction box using the four (4) screws removed in
step 9.
14. Reconnect the engine starting battery, negative (--)
lead last.
15. Reconnect power to the battery charger, if
equipped.
16. Follow the instructions in Section 7.13 to change
the new controller’s configuration settings to match
the generator set system voltage and frequency,
battery voltage, and communications settings.
17. Use a voltmeter to check the output voltage. Follow
the instructions in Sections 7.10.4 and 7.13.8 to
adjust the output voltage and stability.
18. Check the output frequency. Follow the
instructions in Section 4.4, Governor, to adjust the
output frequency.
19. Place the generator set master switch in the AUTO
position if an ATS or remote start/stop switch is
used.
20. Replace the sound shield roof and door(s), if
equipped.
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