Kohler 23EKOZD

145Section 8 Decision-Makerr 3500 ControllerTP-6953 7/19
Section 8 Decision-Makerr 3500 Controller
8.1 General Repair Information
This section contains Decision-Makerr 3500 controller
repair information. Service part replacement of the
controller is limited to the itemsshownwithanasterisk
(*) in Figure 8-1. Refer to the parts catalog for service
part numbers. No other replacement service parts are
available.
Before replacing the controller, remove all external
accessories and other electrical connections to verify
that these items are not the cause of the controller
problems. Verify that the accessories and connections
are functioning correctly before reconnecting them to
the new controller.
Electrical noise can affect the controller operation, refer
to Appendix F, Electrical Noise and Wiring Practices.
The controller receives input signals from several
senders/sensors that provide fault warnings and
shutdowns that can b e tested for proper function.
Simulating these conditions may be helpful in
troubleshooting the generator set. Refer to Section 9.9,
Fault Warning and Shutdown Testing.
Go to the Overview Menu and verify that the Software
(SW) Version is correct for the generator set model and
alternator voltage. Use the operation manual for details
regarding accessing the Overview Menu.
Use SiteTecht software for updating the controller
application code.
8.2 SiteTecht Software
The following items are necessary PC requirements for
using the SiteTe cht software.
D SiteTecht Software Version 4.1 or higher by
accessing TechTools to download on your PC hard
drive or disk if not already installed on your PC.
D TP-6701 SiteTecht Software Operation Manual
available by accessing TechTools.
D USB Cable with male USB-A and mini-B connectors.
See TP-6701.
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GM86809-
1. Controller service kit (*)
2. Switch, emergency stop pushbutton (*)
3. Overlay/display, controller
4. Bezel, controller
5. Screw, machine (#4-40)
6. Gasket
7. LCD display
8. Spacer
9. Circuit board, main logic
10. Scr ew, plastic tapping
11. Label
12. Boot, protective controller
13. Plug, USB (*)
14. K nob, adjustment (*)
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Figure 8 -1 Decision-Makerr 3500 Controller, Service Replacement Parts Indicated with an asterisk (*)