1. DL manuals
  2. Northern Lights
  3. Portable Generator
  4. NL773LW3
  5. Operator's Manual

Northern Lights NL773LW3 Operator's Manual

Summary of NL773LW3

  • Page 2

    Diesel engine exhaust and some of its constitu- ents are known to the state of california to cause cancer, birth defects, and other reproductive harm. — california — proposition 65 warning: northern lights 4420 14th avenue n.W. Seattle, wa 98107 tel: (206) 789-3880 fax: (206) 782-5455 copyright ©201...

  • Page 3: Operator'S Manual

    Onl773lw3 11/13 1 read this operator's manual thoroughly before starting to operate your equipment. This manual contains information you will need to run and service your new unit. Operator's manual for model nl773lw3 introduction ....................................................2 models included...

  • Page 4

    Onl773lw3 11/13 2 servicing of industrial engines and generator sets presents unique problems. Generator sets cannot be compared to the servicing of automobiles, trucks or even farm equipment. Failures often occur in remote areas far from competent assistance. Industrial engines are often taxed far ...

  • Page 5: Warning

    Onl773lw3 11/13 3 a warranty registration certificate is supplied with your set. The extent of coverage is described in the limited warranty statement. We recommend that you study the statement carefully. Note: if the warranty is to apply, the servicing instructions outlined in this manual must be f...

  • Page 6: Caution

    Onl773lw3 11/13 4 safety rules (continued) revised 3-12-12 operating equipment requires the full attention of the operator. Do not use radio or music headphones while operating machinery. Practice safe maintenance ! Caution understand all service procedures before starting work. Keep area clean and ...

  • Page 7: Warning

    Onl773lw3 11/13 5 safety rules (continued) revised 3-12-12 install all safety guards ! Warning direct contact with rotating fans, belts, pulley and drives can cause serious injury. Keep all guards in place at all times during engine operation. Wear close-fitting clothes. Stop the engine and be sure ...

  • Page 8: Caution

    Onl773lw3 11/13 6 safety rules (continued) revised 3-12-12 read and understand the msds for each chemical before you start any job that includes it. Follow the procedures and use appropriate equipment exactly as recommended. Contact your northern lights dealer or northern lights factory for msds’s u...

  • Page 9: Warning

    Onl773lw3 11/13 7 safety rules (continued) revised 3-12-12 material containing asbestos. Keep all bystanders away from any area where asbestos dust may be generated. Use proper lifting equipment and techniques ! Warning lifting heavy components incorrectly can cause severe injury or damage to machin...

  • Page 10: Caution

    Onl773lw3 11/13 8 general policy to avoid dangerous or hazardous situations, refrain from any of the following: • removing or bypassing a guard or other safety device • placing any part of your body in a position where you could be caught by moving machinery. • cleaning or oiling machinery when in o...

  • Page 11

    Onl773lw3 11/13 9 industrial generator component locations 13. Hourmeter 14. Control panel 15. Starter 16. Alternator 17. Radiator shroud 1. Junction box 2. Air filter 3. Crankcase vent 4. Lube oil fill 5. Coolant fill 6. Injection pump figures 2-a and b: nl773lw3 7. Fuel lift pump 8. Dipstick 9. Fu...

  • Page 12

    Onl773lw3 11/13 10 control panel figure 3: series 1-b generator control panel 1. Shutdown bypass-preheat switch there are two functions built into this switch: preheating the engine and bypassing the engine safety shutdown circuit, enabling a quicker start. Hold the switch in the on position for app...

  • Page 13

    Onl773lw3 11/13 11 break-in period 1. The first 100 hours on a new or reconditioned engine are critical to its life and performance. 2. Operate the engine under various conditions, particularly heavy loades with minimal idling, to help seat engine components properly. 3. Constantly check the engine ...

  • Page 14

    Onl773lw3 11/13 12 oil pressure. Other alarms and shutdowns are available as optional equipment. Note: do not rely on your shutdown to the exclusion of careful gauge monitoring. Watching your gauges can prevent damage to the unit and dangerous power losses. 2. Do the following when your warning or s...

  • Page 15

    Onl773lw3 11/13 13 service 50 200 500 1000 2500 point page operation daily hours hours hours hours hours engine: sp1 8 & 12 check oil level • sp2 12 change engine oil 1) 5) • sp3 12 change lube oil filters 1) 5) • • sp4 13 check air cleaner 1) 4) • sp5 13 check v-belt tension • sp6 13 check valve cl...

  • Page 16

    Onl773lw3 11/13 14 servicing lubrication - general 1. Use only clean, high quality lubricants stored in clean containers in a protected area. 2. These lubricants are acceptable: a. Api service cc/cd/ce single viscosity oils. B. Api service cc/cd/sf multi-viscosity oils. 3. Use the proper weight oil ...

  • Page 17

    Onl773lw3 11/13 15 sp4. Air cleaner 1. Inspect air cleaner every 200 hours. In dusty conditions, check more often. 2. Industrial sets: the element cannot be cleaned. Replace it when necessary. Part numbers are: nl773lw3 – #24-27301 4. Note: make absolutely sure no impurities enter the engine while c...

  • Page 18

    Onl773lw3 11/13 16 servicing fuels - general 1. Use only clean, high quality fuels of the following specifications, as defined by astm designation d975 for diesel fuels: a. Use grade no. 2 diesel at ambient temperatures above freezing 32°f (0°c). B. Use grade no. 1 at ambient temperatures below free...

  • Page 19

    Onl773lw3 11/13 17 servicing sp10. Bleeding the fuel system caution: escaping diesel fuel under pressure can penetrate skin causing serious personal injury. Before disconnecting lines be sure to relieve all pressure. Before applying pressure, be sure all connections are tight and lines, pipes and ho...

  • Page 20

    Onl773lw3 11/13 18 figure 7: remove delivery line flare nuts. Figure 8: remove delivery lines. Figure 9: remove return line nuts. Figure 10: remove return line. Figure 11: unscrew injector. Figure 12: remove and replace copper sealing washer. Figure 13: reinstall injector. Torque to proper tightness...

  • Page 21

    Onl773lw3 11/13 19 servicing sp11. Injector service 1. Injectors should be checked every 1000 hours. Check should be made by a northern lights dealer or local injection repair station. Caution: escaping diesel fuel under pressure can have sufficient force to penetrate the skin causing serious person...

  • Page 22

    Onl773lw3 11/13 20 servicing 2. Here are acceptable water quality specifications: 3. If chlorides, sulfates or total dissolved solids are higher than the above given specification, the water must be distilled, demineralized, or deionized before it is used in a cooling system. 4. If total hardness is...

  • Page 23

    Onl773lw3 11/13 21 glow plugs 1. Each cylinder is supplied with a glow plug which serves to heat the combustion chamber. 2. To check the glow plugs, loosen the current carrying flat wire between the plus-poles of the glow plugs ( figure 14 ). Connect a d.C. Test bulb between the plus-pole of the bat...

  • Page 24

    Onl773lw3 11/13 22 troubleshooting if you cannot correct problems with these procedures, see your northern lights dealer. Dc electrical system problem possible cause recommendation(s) battery will not charge loose or corroded connections • clean and tighten battery connections. Sulfated or worn out ...

  • Page 25

    Onl773lw3 11/13 23 troubleshooting engine problem possible cause recommendation(s) engine hard to start improper starting procedure • see starting section of this manual. Take or will not start special note of bypass switch operation. No fuel • check level of fuel in fuel tank. Low battery output • ...

  • Page 26

    Onl773lw3 11/13 24 troubleshooting engine problem possible cause recommendation(s) lack of engine power improper type of fuel • consult fuel supplier and use proper type of (continued) fuel for operating conditions. Overheated engine • see “engine overheats” in next category. Below normal engine tem...

  • Page 27

    Onl773lw3 11/13 25 troubleshooting if you cannot correct problems with these procedures, see your northern lights dealer. Engine problem possible cause recommendation(s) high fuel consumption fuel leakage • improper installation or tightening. (continued) excessive load on engine • check loads. Belo...

  • Page 28

    Onl773lw3 11/13 26 wiring diagrams dc standard ground engine w iring diagram drawing #b-9852 w iring diagrams are subject to change without notice. Revised 2-1-12.

  • Page 29

    Onl773lw3 11/13 27 wiring diagrams 12 v olt dc standard ground engine w iring diagram for northern lights nl773l w3 with s-1b . Drawing #a-3170 w iring diagrams are subject to change without notice. Added 2-1-12.

  • Page 30

    Onl773lw3 11/13 28 wiring diagrams 12 v olt dc standard ground engine w iring diagram for northern lights nl773l w3 with s-3c . Drawing #a12572b w iring diagrams are subject to change without notice. Added 2-1-12.

  • Page 31

    Onl773lw3 11/13 29 ac engine w iring diagram for northern lights nl773l w3 drawing #b-9724c w iring diagrams are subject to change without notice. Wiring diagrams revised 2-1-12.

  • Page 32

    Onl773lw3 11/13 30 ac engine w iring diagram for northern lights nl773l w3 drawing #b-9723a w iring diagrams are subject to change without notice. Wiring diagrams added 2-1-12.

  • Page 34

    4420 14th ave. Nw., seattle wa 98107 tel: (206) 789-3880 • 1-800-762-0165 • www.Northern-lights.Com northern lights and lugger are registered trademarks of northern lights, inc. © 2013 all rights reserved. Litho usa..