SUPPORT AS 2276844 - Caterpillar

Illustration 1 g00932669
101-1785 Battery
This fault code indicates that battery backup power was low, possibly resulting in an incorrect real time clock setting and/or loss of any total cycles and total payload data. System Response:This failure may result in an incorrect real time clock setting and/or loss of any total for number of cycles and the total payload data. Battery failure or replacement may cause loss of the date and time setting. Power up after replacement will cause the date and time to default to a date of 01/01/95 and a time of 01:01.
Always replace a lithium battery with another lithium battery. Care must be taken in handling a lithium battery to prevent short circuiting the terminals on the battery. Improper handling of a lithium battery may cause an explosion that may result in personal injury from caustic burns.
Test Step 1. REPLACEMENT OF THE BATTERY
Turn the key switch to the OFF position.
Remove the access panel on the compartment behind the operator's cab.
Remove round cover (1) located on top of the PMC.
Remove the battery, may be used. Note: The battery is held in a socket by clips that are part of the socket. Use a small blade screw driver pry on the battery sides next to the clips. When the battery is separated from the socket remove battery.Note: Care must be taken while removing and installing the battery to insure that the O-ring seal surface is not scratched or gouged.
Orient the new battery in such a way that the positive ("+") indicator on the battery is over the positive ("+") indicator of the socket. The notch in the battery will also help to orient the device.
Install the battery by pressing in the center with enough force to push the battery past the clips to lock in place.
Check the O-ring cover seal. Make sure it is properly placed and not damaged. Install cover (1) and tighten securely against the battery holder housing. Expected Result:The fault is no longer present.Results:
OK - The fault is no longer present. Return the machine to service.STOP
NOT OK - The fault is still present. The Payload Measurement Control (PMC) has failed.Repair: Replace the Payload Measurement Control (PMC) STOP