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Page Title: VOLTAGE TEST
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TM 9-2320-364-20-4      2-3181 R52 R51 R50 Remove all jewelry such as rings, dog tags, bracelets, etc.  If jewelry or tools contact positive electrical circuits, a direct short may result.  Damage to equipment, injury or death to personnel may occur. VOLTAGE TEST (1)   Cycle LHS so sensor plate on hook arm covers CHU proximity switch (TM 9-2320-364-10). (2)   Loosen four screws and remove cover from CHU control box. (3)   Remove relay R50 from CHU control box (Para 21-23). (4)   Turn ON ENGINE switch (TM 9-2320-364-10). (5)   Connect negative (–) multimeter lead to a known good ground. (6)   Connect positive (+) multimeter lead to relay R50, terminal 87. (a)   If 22 to 28 vdc are not present, perform Step (8) below and go to Step 4 of this Fault. (b)   If 22 to 28 vdc are present, prox- imity switch is OK, perform Steps (7) and (8) below and go to Step 6 of this Fault. (7)   Install relay R50 on CHU control box (Para 21-23). (8)   Turn OFF ENGINE switch. CHU CONTROL BOX SCREWS CHU CONTROL BOX 87 R50 86 87A 87 85 30

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