TM 5-3610-253-14
Table 5-8. ORGANIZATIONAL TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
18. MAIN MOTOR WILL NOT START - Cont
(c) Turn main power switch to I position.
(d) Check for 120 5 V ac at input of three contacts on overload relay.
(1) If voltage is correct, proceed to step 3.
(2) If voltage is not present, replace main power switch (para-
graph 5-16.15).
Step 3.
Check for 120 5 V ac at output of three contacts on overload
(a) If voltage is not present, replace overload relay (paragraph
(b) If voltage is correct, proceed to step 4.
Step 4.
Check resistance on main motor windings.
NOTE
Remove cover and disconnect power line and bridges from main drive motor
terminal block. Take ohmmeter readings across terminals according to chart
below, and be sure that all three readings are in range indicated below.
5-125
