TM 5-3610-253-14
Table 5-21.
ORGANIZATIONAL TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
17. BACKGAUGE DOES NOT OPERATE ELECTRICALLY - Cont
e.
Turn main power switch to I position.
f. Turn Star-Delta switch to Y position. After main motor has reached full
speed, turn switch to
position. Then press control power on switch.
WARNING
Electrical shock hazard. You must stand on rubber matting as a protective
measure before performing this procedure. Death or serious injury may occur.
Check for 120 5 V ac at output of three contacts on overload relay
g.
while using backgauge controls.
(1) If voltage is present, proceed to step 5.
(2) If voltage is not present, proceed to step 4.
Check for 1205 V ac at input of three contacts on overload
Step 4.
relay while using backgauge controls.
(a) If voltage is present, replace overload relay (paragraph
(b) If voltage is not present, refer to direct/general support
maintenance.
Step 5.
Check resistance on backgauge motor windings.
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