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BATTERY CONNECTIONS To prevent accidental starting of the genset during installation, do not connect the battery cables at the battery until so instructed in STARTUP (Page 6-2). WARNING Accidental starting of the genset can cause severe personal injury or death. Do not connect the starting battery until so instructed in STARTUP. The genset has a 12 VDC, negative-ground engine control and cranking system. See Specifications (Page 7-1) for the requirements for cranking batteries. Battery Compartment Batteries must be mounted in a compartment separate from that of the genset and away from sparkproducing equipment. A compartment must have openings of at least 1.7 square inches (11 square centimeters) at the top and bottom for ventilation of battery gasses. It should be located such that spills and leaks will not drip acid on fuel lines, wiring and other equipment that could be damaged. WARNING Arcing can ignite the explosive hydrogen gas given off by the battery, causing severe personal injury. The battery compartment must be ventilated and must isolate the battery from spark-producing equipment. Battery Cables Size battery cables according to Table 5-1. The current path between the genset and the negative (−) battery terminal must also be able to carry full cranking current without causing excessive voltage drop. It is highly recommended that a full-length cable be used to connect the genset to the negative (−) battery terminal (Figure 5-8). Note also that codes may require a bonding conductor between the genset and vehicle frame and between the battery and vehicle frame. If the vehicle frame is used as the path between the negative (−) battery terminal and the genset (Figure 5-9), all frame members in the path of battery cranking currents must have substantial crossections. The electrical resistance of riveted or bolted frame joints must also be carefully considered, especially if the joints will be exposed to corrosive conditions. A cable sized according to Table 5-1 must be used to connect the frame to the designated negative (−) terminal on the genset (Figure 5-9). The genset mounting bolts are not considered adequate means for bonding the genset to the vehicle frame, either for the purpose of carrying cranking currents or for complying with requirements for genset/system grounding. TABLE 5-1. BATTERY CABLE SIZES FOR TEMPERATURES DOWN TO −20° F (−29° C) TOTAL CABLE LENGTH* FEET (METERS) CABLE SIZE AWG 0 to 10 (0 to 3) 2** 11 to 15 (3 to 4.5) 0 16 to 20 (4.5 to 6) 000 * − Add the negative battery cable lengths with the positive battery cable lengths for the total. ** − A total length of up to 20 feet (6 meters) may be used in warmer climates or when battery capacity totals at least 1000 CCA (Cold Cranking Amps). GENSET + GND − SIZE PER TABLE 5-1 #8 AWG MINIMUM VEHICLE FRAME − + BAT FIGURE 5-8. FULL-LENGTH CABLE FROM BATTERY NEGATIVE (−) TERMINAL GENSET + − SIZE PER TABLE 5-1 VEHICLE FRAME − + BAT FIGURE 5-9. VEHICLE FRAME AS PATH FROM BATTERY NEGATIVE (−) TERMINAL 5-5
Route battery cables away from fuel lines and hot engine exhaust components. Battery cables should be accessible for inspection and replacement, protected from damage and secured to prevent chafing due to vibration. POSITIVE (+) CABLE TERMINAL NUTS AND INSULATING BOOT WARNING Routing battery cables with fuel lines can lead to fire and severe personal injury or death. Keep battery cables away from fuel lines. Battery Cable Connections at Genset Terminate the battery cables with ring terminals sized for 5/16 inch screws and connect them to the genset as shown in Figures 5-10 and 5-11. Secure the insulating boot on the positive (+) terminal and tie it to the battery cable with the tie-wrap in the bag with the manuals. Torque the positive (+) cable terminal to 4.5 lb-ft (6 N-m). Torque the negative (−) cable screw to 8 lb-ft (11 N-m). GENSET GROUNDING SCREW POSITIVE (+) CABLE TERMINAL Genset (Equipment) Grounding Screw When required (see Figure 5-8) connect the genset grounding screw (Figure 5-10) to the vehicle frame with a No. 8 AWG or larger stranded cable having a ring terminal sized for a 3/8 inch screw. Torque the grounding screw to 8 lb-ft (11 N-m). FIGURE 5-10. POSITIVE (+) CABLE TERMINAL & GENSET GROUNDING SCREW BOTTOM, LEFT END OF BASE FIGURE 5-11. NEGATIVE (−) CABLE SCREW 5-6
Page 1 and 2: Caution: This document contains mix
Page 3 and 4: ! ! The engine exhaust from this pr
Page 5 and 6: SECTION PAGE 6. INSTALLATION REVIEW
Page 7 and 8: BATTERY GAS IS EXPLOSIVE • Wear s
Page 9 and 10: OUTLINE DRAWINGS See the Outline Dr
Page 11 and 12: HEAT, FIRE AND EXHAUST BARRIERS Ins
Page 14 and 15: 3. Exhaust Connections The exhaust
Page 16 and 17: TAILPIPE 1. Use 1-3/8 inch ID alumi
Page 18 and 19: 4. Fuel Connections See the Operato
Page 20 and 21: Fuel Return Line (Genset to Supply
Page 22 and 23: LOW PRESSURE PROPANE SUPPLY (VAPOR
Page 24 and 25: 5. Electrical Connections To preven
Page 26 and 27: REMOTE CONTROL CONNECTIONS The gens
Page 30 and 31: 6. Installation Review and Startup
Page 32 and 33: 7. Specifications GASOLINE MODELS 7
Page 34 and 35: A-1 500-3234 OUTLINE DRAWING—HGJA
Page 36 and 37: A-3 611-1272 WIRING DIAGRAM—HGJAA
Page 39: Cummins Power Generation 1400 73rd

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