Installation Procedure; Remove The Generator Set From Service; Remove The Gauge Driver Board In The Dec 3+ Controller - Kohler APM802 Installation Instructions Manual

Installation Procedure

Read the entire installation procedure and compare kit
parts with parts list in this publication before beginning
installation. Perform the steps in the order shown.
Note: Observe applicable local and national electrical
codes when installing the wiring system.
1.

Remove the generator set from service.

Note: Refer to the procedures in the Safety Precautions
for disabling the generator set. The procedure to
shut down the generator set varies depending
upon the controller.
1.1 Shut down the generator set.
1.2 Disconnect the power to the battery charger, if
equipped.
1.3 Disconnect the generator set engine starting
battery(ies), negative (--) lead first.
1.4 Remove the controller cover and hardware.
10
2. Remove the gauge driver board in the
DEC 3+ controller (if equipped).
If the unit is an 80--150REOZJD or 450/500REOZVB
model, the controller may contain a gauge driver circuit
board GM49791-2. Information regarding identifying
the circuit board is shown in the Communication Module
for DEC 3+ Controller section of this document.
Note: If the unit is not an 80--150REOZJD or 450/
500REOZVB model, go to step 3.
Note: If the communication module board GM49791-1
is already installed because GM91356-S4, -S5,
or -S6 kit was ordered installed, go to step 5.
Otherwise, remove GM49791-2 interface with gauge
driver circuit board and replace with GM49791-1
communication interface with gauge driver circuit
board. Use the following procedure and refer to
Figure 9.
2.1 Disconnect the 10-pin cable at the P8 connector
on the circuit board.
2.2 Disconnect the 8-pin cable at the P10 connector
on the circuit board.
2.3 Remove the existing three nuts and lock washers
attaching the gauge drive circuit board to the
indicator panel circuit board. Leave the existing
washers in place. The nuts and lock washers will
be reused.
2.4 Remove existing 24-position ribbon cable
336428 between the indicator panel circuit board
and the main circuit board. This ribbon cable will
not be reused.
2.5 The new 24-position ribbon cable GM32632 has
three connectors—one at each end and an inline
connector. Attach the end connector (nearest to
inline connector) to the indicator panel circuit
board P4 connector. The connector is polarized
and mates in one position only.
2.6 Attach the other end connector of the 24-position
ribbon cable GM32632 to the main circuit board
P3 connector. The connector is polarized and
mates in one position only.
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