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BATTERY TSB Revision CHASSIS ELECTRICAL 54-7 CHARGE RATE If the test indicator is white, the battery should be charged as outlined below. When the dot appears or when . Charge Rate Chart NOTE: *: Time which elapses before the engine can BATTERY TEST M1541001200551 BATTERY TESTING PROCEDURE STEP 1. Check the battery cables. Remove the negative cable, then the positive cable. Q: Are the battery cables dirty or have corroded connections? YES : Clean the battery cables. Then go to Step 2. NO : Go to Step 2. STEP 2. Check the battery post. Check for loose battery post. Q: Are the battery post faulty? YES : Replace the battery. Then go to Step 4. NO : Go to Step 3. STEP 3. Check the battery case and cover. Q: Is the battery case or cover faulty? YES : Replace the battery. Then go to Step 4. NO : Go to Step 4. STEP 4. Check the open circuit voltage. battery positive voltage to stabilize. (3) Disconnect the battery cables. Q: Is open circuit voltage 12.4 volts or more? YES : Go to Step 5. NO : Charge the battery at 5 amps for 10.4 hours. STEP 5. Check the load test. rate (See LOAD TEST RATE CHART) for 15 (3) Read voltage after 15 seconds, then remove load. (4) Compare the measured value with the minimum voltage. (See LOAD TEST CHART.) Q: Is the voltage higher than minimum voltage? YES : The battery is normal. NO : Replace the battery. Then go to Step 4. LOAD TEST CHART BATTERY 75D23R (520 amps) 80D26R (582 amps) Slow charging 5 amps 10.4 hours 5 amps 12 hours 10 amps 5.2 hours 10 amps 16 hours Fast charging 20 amps 2.5 hours 20 amps 2.5 hours 30 amps 1.5 hours 30 amps 1.5 hours* TEMPERATURE 21 (70) 16 (60) 10 (50) 4 (40) −1 (30) −7 (20) −12 (10) −18 (0) Minimum voltage 9.6 9.5 9.4 9.3 9.1 8.9 8.7 8.5 |