2-3.4 Connecting Load

Figure 2-7. Ground Rod and Slide Hammer.

Figure 2-8. Power Plant and Power Unit Ground Connections

TM-9-6115-659-13P Power Unit PU-732/M (NSN 6115-00-280-3082) MEP-118A 15 Kw 400 Hz Generator Set M200A1 2-Wheel 4-Tire Modified Trailer Manual
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TM 9-6115-659-13&P b. Connect ground rod coupling (10) to ground rod (7) and screw slide hammer into coupling (10). Make sure that slide hammer rod (4) seats on ground rod (7). c. Drive ground rod into ground until coupling is just above surface. d. Remove slide hammer assembly and install another section of ground rod (7). e. Install another coupling (10) and the slide hammer assembly. Drive ground rod down until new coupling is just above ground surface. f. Repeat steps d and e until ground rod has been driven eight feet or deeper, providing an effective ground. g. Connect clamp (9) and ground cable (8) to ground rod (7) and tighten clamp screw. h. Connect ground cable (8) to trailer as follows. NOTE Ground terminal on high mobility trailer is different than one used on other trailers. (1) If the high mobility trailer (AN/MJQ-35A or PU-797A) is being used, perform steps (5) and (6). Otherwise perform steps (2) through (4). (2) Remove and retain wing nut (1, figure 2-8) and flat washer (2) from trailer ground stud (4) and install ground cable terminal lug (3) to ground stud (4). (3) Install flat washer (2) on ground stud (4). (4) Install wing nut (1) on the ground stud (4) and tighten. (5) Loosen nut (5) on high mobility trailer ground terminal (6). (6) Insert wire (7) through slot of ground terminal (6) and tighten nut (5). i. Disassemble slide hammer as follows: (1) Remove nut (6, figure 2-7) from end of rod (4) and retain. (2) Remove hammer (5) from rod (4) and thread nut (6) on end of rod to prevent loss. (3) Store hammer (5) and rod (4) with assembled parts in accessory box. 2-3.4 Connecting Load. 2-3.4.1 Power Plant. Load cables and instructions for connecting them are normally furnished with the equipment that is to be supplied with electric power. The load may be connected to the switch box (1, figure 2-9) by either of two arrangements. One way is to connect a load cable to the switch box output connector (7). The other way is to connect load cables to the switch box load terminals (3). Before connecting the load, determine voltage requirements of the system or equipment that is to receive electric power. Change 2 2-33

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