TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 STE/ICE-R TEST 73 BATTERY RESISTANCE — STE/ICE-R TEST 75 BATTERY RESISTANCE CHANGE (PACK)—Continued 0124 00 3. Press and release TEST button. 4. When GO appears, crank engine for two seconds or until one of the following appears on display: Table 1. DISPLAY PERFORM/RESULT a. OFF Stop cranking and wait for message to appear. b. A number CIRCUIT RESISTANCE (milliohms test 73; milliohms/ seconds test 75) c. .9.9.9.9 Beyond range of VTM, cannot be measured. d. Error message See (WP 0107 00) e. (—-) VTM lost power during test. Batteries may be too weak. Try powering VTM using external source. 5. Observe VTM reading. a. If test 73 VTM reading is 25 or less, test passes. b. If test 73 VTM reading is over 25, test fails. c. If test 75 VTM reading is 50 or less, test passes. d. If test 75 VTM reading is over 50, test fails. Table 2. TEST 73 TEST 75 BATTERY INTERNAL RESISTANCE BATTERY RESISTANCE CHANGE BATTERY PACK CONDITION TEST RESULT TEST RESULT PASS PASS The batteries tested are ok and in good state of charge. PASS FAIL The batteries tested are in poor condition, but have a fresh charge. FAIL PASS The batteries tested are ok, but need to be recharged. FAIL FAIL The batteries tested are in poor condition and in a state of discharge. 6. Select test 75. 0124 00-2