TM 5-3610-253-14
Table 5-21.
ORGANIZATIONAL TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
17. BACKGAUGE DOES NOT OPERATE ELECTRICALLY - Cont
Remove terminal cover from motor and disconnect power line and bridges from
backgauge motor terminal block. Take ohmmeter readings across terminals
according to chart below, and be sure that all three readings are in range
indicated below.
THREE-PHASE MOTOR TESTS
Test Lines at Terminals
Correct Ohmmeter Readings
U and X
3-5 ohms
V and Y
3-5 ohms
W and Z
3-5 ohms
(a) If readings are incorrect, replace backgauge motor
(b) If readings are correct, refer to direct/general support
maintenance.
5-412
