5-8 SWITCH BOX HARNESS W9 MAINTENANCE

Figure 5-8. Switch Box Lead Connections.

Figure 5-9. Switch Box Relay Board Assembly

TM-9-6115-660-13P Power Plant Diesel Engine Driven 1-Ton Trailer Mounted (With Racks) 3Kw 60 Hz AN/MJQ-42 Manual
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TM 9-6115-660-13&P 2. 3. 4. Remove nuts (8), lock washers (9), flat washers (10), and leads (11 and 12). Locate W3-W5 connections to switch box load terminals L1, L2, and L3 (4, Detail B). Remove nuts (1), internal tooth washers (2), and leads (3) from load terminal (4). REPAIR Refer to figure G-1, appendix G. INSTALLATION 1. 2. 3. Install leads W3, W4, and W5 (3), internal tooth washers (2), and nuts (1) on switch box load terminals and tighten. Install other end of leads W3-W6 (11 and 12), flat washers (10), lock washers (9), and nuts (8) on contractors (13). Install contactor shield (7), lock washer (6), and screw (5). 5-8 SWITCH BOX HARNESS W9 MAINTENANCE. This task covers: a. Test c. Repair b. Removal d. Installation INITIAL SETUP Tools Equipment Conditions Tool Kit, General Mechanic’s Reference (item 1, appendix B) Solder Gun (item 3, appendix B) Both generator sets shut down; paragraph Crimping Tool, Hand (item 3, appendix B) 2-5.3.3. Trailer handbrakes set, front Multimeter (item 3, appendix B) support Leg/landing leg lowered, and rear leveling-support jack lowered; paragraph Materials/Parts 2-3.2.1. Switch box cover open. Lock washers Solder Insulation sleeving TEST 1. Remove four screws (2, figure 5-9), lock washers (3), and flat washers (4), and invert relay board assembly (1). NOTE Disconnect wire being checked at one end to isolate wire for continuity check. 5-15

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