Case CX290 Crawler Excavator Operator's Manual 6-31872 - PDF DOWNLOAD

Page 207

ELECTRICAL SYSTEM

BATTERIES Service specifications Template Name: OM_1_col Template Date: 1994_04_29

Check electrolyte level .................................................................. Every 250 hours NOTE: When starting the machine with booster batteries, see “Connecting booster batteries”.

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WARNING: Before carrying out any service work on electrical system components, turn the starter switch key to the “OFF” position. When disconnecting batteries, always disconnect the negative (-) cable first. When reconnecting batteries, always connect the negative (-) cable last.

To gain access to the batteries, open the left-hand side door.

Checking the electrolyte level

Replacing a battery

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CD00E094 CP99A022

Remove the cell caps and check the level in each batteries cell. The level should be between 10 and 15 mm above the plates. Add distilled water if necessary, then install the cell caps. IMPORTANT: When adding distilled water at temperatures below 0°C, the batteries must be charged or the engine run for two hours approximately in order to ensure that the distilled water and the electrolyte are properly mixed.

Remove the terminal protection caps, disconnect cables (negative terminals) and then cables (positive terminals). Remove the anti-sulphate pellets. Remove the two screws, the washers and metal sheet and then remove the old battery. Install the new battery and put the metal sheet, washers and screws back in place. Clean the cables and battery terminals and coat them with grease.

NOTE: Make sure the battery terminals are clean and coated with grease and that the cables are properly tightened.

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