TRANSMISSION OIL TEMPERATURE INDICATING AND WARNING SYSTEM OPERATIONAL CHECK (Continued)

T R A N S M I S S I O N O I L T E M P E R A T U R E I N D I C A T I N G A ND W A R N I N G S Y S T E M O P E R A T I O N A L C H E CK

TRANSMISSION OIL TEMPERATURE INDICATING AND 8-10.3 WARNING SYSTEM OPERATIONAL CHECK (Continued)

TM-55-1520-240-T-2 CH-47D Heilcopter Manual
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TM 55-1520-240-T 8-10.3 TRANSMISSION OIL TEMPERATURE INDICATING AND WARNING SYSTEM OPERATIONAL CHECK (Continued) 8-10.3 TASK RESULT 5. Turn XMSN OIL TEMP switch (2) to FWD, AFT, MIX, Each switch position shall light when selected. If not, LEFT, then RT position. Record indication on XMSN replace XM SN OIL TEMP switch (2). Each indicator (3) TEMP indicator (3) for each switch position. indication shall be near ambient temperature. If not, go to Task 8-10.7. 6. Compare highest indication recorded in step 5 with The difference in indications shall not exceed 5 percent. If indication recorded in step 4. it does, replace XMSN OIL TEMP switch (3). 7. Turn XMSN OIL TEMP switch (2) to SCAN. Switch position that recorded highest indication in step 5 shall light. If it does not, replace switch (3). CHECK TRANSMISSION OIL TEMPERATURE WARNING SYSTEM 8. Without 74 check NO. 1 ENG XMSN HOT and NO. 2 If capsule (4 or 5) is lit, go to Task 8-10.8. ENG XMSN HOT capsules (4 and 5). With 74 check ENG 1 XMSN HOT and ENG 2 XMSN If capsule (4 or 5) is lit, go to Task 8-10.8. HOT capsules (4 and 5). 9. Disconnect plug from No. 1 (left) engine transmission NO. 1 ENG XMSN HOT (Without 74) ENG 1 XMSN temperature and chip detector (6). Short pins 3 and 4 HOT (With 74) capsule (4) shall come on. If it does not, with a wire. go to Task 8-10.9. 10. Remove wire. Connect plug to temperature and chip Capsule (4) shall go out. detector (6). 11. Disconnect plug from No. 2 (right) engine transmis- NO. 2 ENG XMSN HOT (Without 74) ENG 2 XMSN sion temperature and chip detector (6). Short pins 3 HOT (With 74) capsule (5) shall come on. If it does not, and 4 with a wire. go to Task 8-10.9. 12. Remove wire. Connect plug to temperature and chip Capsule (5) shall go out. detector (6). GO TO NEXT- PAGE Change 19 8-221

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