1838258 COVER Caterpillar parts
320C, 321C, 323D L, 323D LN
Rating:
Alternative (cross code) number:
CA1838258
183-8258
1838258
CA1838258
183-8258
1838258
Weight: 3 pounds 1 kg.
EXCAVATOR,
Number on catalog scheme:
5
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Information:
Remove the bolt that holds down the backup battery with the 9/32 socket. See Illustration 3.
Illustration 4 g01243556
Starting to pry the battery out of the ECM with a putty knife
Slide a putty knife between the ECM and the backup battery, and pry up and down until sufficient space exists for the tip of a flat head screwdriver. See Illustration 4.
Illustration 5 g01235152
Prying the battery out of the ECM with a flat head screwdriver
Insert the tip of a flat head screwdriver and pry up and down until the backup battery is free from the ECM. See Illustration 5.
Illustration 6 g01235383
Removing the battery wire from the ECM and placing the battery beside the ECM
Pull the backup battery wire out of the ECM and place the backup battery on the side of the ECM. See Illustration 6. Note: The battery wire fits snugly in the ECM. Pull the battery wire out of the ECM carefully.
Perform the following in order to test the backup battery voltage:
Illustration 7 g01235198
Test points of the battery
Locate the test points on the back side of the connector. See Illustration 7. Note: Red is the positive test point and black is the negative test point.
Turn on the multimeter.
Illustration 8 g01235203
Multimeter probes and the test points of the battery
Contact the red probe of the multimeter to the red test point and the black probe of the multimeter to the black test point. See Illustration 8.
Observe the displayed backup battery voltage. Note: Check the backup battery voltage while the backup battery is still connected to the ECM. Do not unplug the backup battery until the voltage is verified. The ECM Backup Memory will be erased if the voltage falls to approximately 2.5 volts DC. The backup battery voltage should be between 3 volts DC and 3.6 volts DC. Backup battery voltage that is below 3 volts DC is considered to be too low. Replace a backup battery that has too low voltage.
Perform the following in order to replace the backup battery:
Locate the Release tab on the backup battery side of the connector.
Firmly grip both sides of the connector and press on the Release tab. Note: Disconnecting the connector by holding the wires at the back of the connector can cause these wire connections to be damaged.
Illustration 9 g01235219
Separating the battery wire from the ECM connector
Separate the backup battery wire from the ECM connector. See Illustration 9.
Illustration 10 g01235319
Battery
Acquire a new backup battery. See Illustration 10.
Illustration 11 g01235555
Connecting the battery wire to the ECM connector
Connect the backup battery wire to the ECM connector. See Illustration 11.
Test the backup battery voltage in accordance with Step 12. Note: If this backup battery voltage is not between 3.4 volts DC and 3.6 volts DC then this replacement backup battery should not be installed. Acquire a different backup battery and go to Step 13.e.
Illustration 12 g01235357
Feeding the battery wire into the ECM
Carefully feed the wire back inside the ECM. See Illustration 12.
Position the newbackup battery at the hole for the backup battery in the ECM and line up the holes for the bolt. Note:
Caterpillar parts catalog:
Parts cover Caterpillar catalog:
12G, 140G, 14G, 235C, 30/30, 3116, 3126, 3126B, 3208, 320B, 320C, 322B, 322B L, 322B LN, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325B, 325B L, 325C, 325C FM, 325D, 325D FM, 325D FM ...
120G, 120H, 120K, 120K 2, 120M, 120M 2, 12G, 12H, 12K, 12M, 130G, 135H, 1390, 140G, 140H, 140K, 140K 2, 143H, 14H, 160G, 160H, 160K, 163H, 16H, 215, 215B, 2384C, 2484C, 24H, 24M, 2590, 30/30, 305.5, 3...
1090, 1190, 1190T, 120B, 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 1290T, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 130G, 135H, 135H NA, 1390, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H,...
120H ES, 12H ES, 140H ES, 143H, 14H NA, 160H ES, 163H NA, 16H NA, 216, 216B, 216B3, 226B, 226B3, 232B, 236, 236B, 236B3, 236D, 242B, 242B3, 242D, 246C, 246D, 247B, 247B3, 252B, 252B3, 256C, 257B, 257B...
311, 311B, 311C, 312, 312B, 315, 315B L, 315C, 315D L, 316E L, 317, 317B LN, 318B, 318C, 318D L, 318D2 L, 318E L, 319C, 319D, 319D L, 319D LN, 320 L, 320B, 320C, 320C L, 320D, 320D FM, 320D GC, 320D L...
311, 311B, 312, 312B, 313D2 LGP, 315, 315B, 315B FM L, 315B L, 315C, 315D L, 316E L, 317, 317B LN, 318B, 318C, 318D L, 318D2 L, 318E L, 319C, 319D, 319D L, 319D LN, 320 L, 320B, 320B L, 320C, 320C L, ...
315C, 315D L, 318B, 318C, 318E L, 319C, 319D, 319D L, 319D LN, 320 L, 320B, 320C, 320C FM, 320C L, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 3...
307C, 307D, 311C, 311D LRR, 311F LRR, 312C L, 312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 315C, 315D L, 318C, 318D L, 318D2 L, 319D L, 320C, 320C FM, 320C L, 320D, 320D FM, 320D GC, 320D L, 320D LN, 3...
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315D L, 318C, 318D L, 319C, 319D, 319D L, 319D LN, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN...
318C, 319C, 320 L, 320B, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 323D L, 323D LN, 323D SA
318C, 319C, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 322C, 322C FM, 323D L, 323D LN, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325C, 325C...
312D, 320B, 320C, 323D LN, 323D SA, 323E L, 325, 325 L, 325 LN, 325B, 325B L, 325C, 325D, 325D L, 325D MH, 328D LCR, 329D, 329D L, 329D LN, 329E, 329E L, 329E LN, 330, 330 FM L, 330 L, 330B L, 330C, 3...
1703367
COVER
574
574
1995904
COVER
574, 574B
574, 574B
1705127
COVER
574
574
1973310
COVER AS
574
574
1782795
COVER
574
574
1614763
COVER
574
574
1939785
COVER AS
320C
320C
2193104
COVER AS
320C
320C
320C, 320C FM, 320D, 320D FM, 320D FM RR, 322C, 322C FM, 323D LN, 323D SA, 323E L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325C, 325C FM, 325D, 325D L, 325D MH, 326D L, 329D, 329D L, 329D LN, 32...
1636746
COVER
320C, 320C FM, 322C, 325C, 330C, 330C L
320C, 320C FM, 322C, 325C, 330C, 330C L
1652842
COVER AS
320C
320C
1786556
COVER
320C, 320C FM
320C, 320C FM