TM 5-3610-285-14
Table 5-5. ORGANIZATIONAL TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
ROLLERS DO NOT ROTATE WHEN CIRCUIT BREAKER AND MAIN DRIVE SWITCHES ARE ON - Cont
Step 5. Check voltage between leads 26 and 27 of control unit A1.
(a)
If 0 to 0.2 V dc is present, proceed to step 6.
(b)
If voltage is not present, replace TRANSPORT SPEED control potentiometer (paragraph 5-16.7).
Step 6. Check voltage between leads 25 and 27 of control unit Al.
(a)
If 0.6 to 4.0 V dc is present, proceed to step 7.
(b)
If voltage is not present, replace TRANSPORT SPEED control potentiometer (paragraph 5-16.7).
Step 7. Check voltage between leads Fl and F2 of control unit A1.
(a)
If 90 V dc is present, proceed to step 8.
(b)
If voltage is not present, replace control unit A1(paragraph 5-16.29).
Step 8. Check voltage between leads A1 and A2 of control unit Al.
(a)
If 0 to 132 V dc is present, proceed to step 9.
(b)
If voltage is not present, replace control unit A1 (paragraph 5-16.29).
Step 9. With power off, disconnect motor leads Fl and F2 from control unit Al and check between motor leads for
continuity.
(a) If continuity is indicated, refer to higher level of maintenance.
(b) if continuity is not indicated, replace main drive motor (paragraph 5-16.14).
2.
LOWER DOES NOT BLOW AIR WHEN MAIN DRIVE AND DRYER SWITCHES ARE ON, AND STANDBY
FEATURE IS NOT ON.
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