11-17. ENGINE COOLANT HEATER WIRING HARNESS REPLACEMENT

/.25ton/TM-9-2320-289-20 CUCV Series Trucks at Unit level Manual
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TM 9-2320-289-20 11-17. ENGINE COOLANT HEATER WIRING HARNESS REPLACEMENT. This task covers: a. Removal b. Installation INITIAL SETUP: Equipment Condition Materials/parts • Both battery negative cables disconnected. • Tie-down straps (Item 44, Appendix C) (See paragraph 4-38) a. REMOVAL NOTE • If removing relay (10), perform step 3. • Tag all leads and connectors for installation. 1. Disconnect wiring harness connector ( 5 ) f r o m e n g i n e c o o l a n t h e a t e r t h e r m o s t a t ( 4 ) . R e m o v e e n g i ne coolant heater (1) cover and disconnect wiring harness (2) from engine coolant heater, Disconnect wiring harness connector (6) from cab heater connector (7). Remove and discard tie-down straps from wiring harness. 2. Disconnect wiring harness (2) from cab heater control panel assembly (8). Loosen nut on strap (9) and disconnect wiring harness. 3. Remove relay (10) and disconnect from wiring harness (2). 4. Remove wiring harness (2) and grommet (3) from bulkhead. Retain grommet for installation if not damaged. TA50089 11-62

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