GEAR-BEVEL 3V2985 - Caterpillar

Locate the connector for the auto turn-off feature on the large circuit board. The connector is located between the battery and the integrated circuit (40 pin).
Lift the connector and move the connector to the next set of pins that are closest to the battery. This will disable the auto turn-off feature. Refer to the above illustration to show the proper location of the connector for each mode of operation.
Carefully place the small circuit board (2) on top of the large printed circuit board. Ensure that the connector for the two circuit boards is properly aligned before you press the two circuit boards together.
Install four screws (1) in the corners of small board (2). Replace the battery and install the rear cover.Replacement of Serviced Parts for 8T-2701 Blowby Indicator Assembly
Removal Procedure for the 8T-0999 Membrane Switch
Remove the rear cover and remove the internal battery. Follow Steps 1 and 2 in "Replacing the Internal Battery".
Remove the small printed circuit board. Follow Step 3 and 4 in "Disabling the Auto Turn-off Feature (If Equipped)".
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Remove six screws (3). Lift up the printed circuit board (4) from the front cover. Be sure to lift the printed circuit board from the LCD end.
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Carefully remove the 8T-0999 Membrane Switch connector (5) from the connector pins (6) .Replacement Procedure for the 8T-0844 Front Cover and the 8T-0999 Membrane Switch
Note: Always replace both the front cover and the membrane switch even if only one is damaged.
Repeat steps 1 through 4 of "Removal Procedure for the 8T-0999 Membrane Switch"
Start at the window end of the membrane switch. Carefully peel the backing from the 8T-0999 Membrane Switch while you align the membrane switch with the 8T-0844 Front Cover .Note: Before you glue the switch in place, make sure that the switch connector is properly installed through the slot in the front cover.Replacing the 8T-0887 Connector Assembly or the 8T-1005 LCD Display
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Repeat steps 1 through 4 of "Removal Procedure for the 8T-0999 Membrane Switch".
Remove four screws (7) from circuit board (4) .
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Remove 8T-0887 Connector Assembly (8) and 8T-1005 LCD Display (12) from the circuit board.Note: The 8T-0887 Connector Assembly consists of the following items: Cover (10), Shield (11), LCD Display (12), Frame (13), and Strips (14) .Note: Do not touch strips (14) with bare hands. If the strips need to be placed into the slots in the frame (13), use tweezers.
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Discard damaged parts.Note: The pins on the bottom of the frame of the connector must fit into the holes (15) .
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Place the assembled frame (13) and strips (14) on the large circuit board.
Hold the digital LCD display (12) in front of a light in order to determine which end the LO BAT display is on. Do not lose this orientation.
Place the LCD display on top of the strips with the LO BAT on the left.
Place shield (11) on top of the LCD display. Put cover (10) over the shield and install four screws (7) in the