Part of the Yanmar Repair Manuals.
The generator is humming, the mast is up, and all four metal halide lamps stay dark. That is the moment this Yanmar Light Boy service manual earns its keep: the Troubleshooting section walks the fault through the system in order, so you are testing instead of guessing.
It covers the LB446HB-1 and LB446H-1 lighting towers across 81 pages: full specifications for both models, the structure of the balloon and lamp stand units, step-by-step disassembly and assembly procedures, inspection and maintenance for the electrical, mast, outrigger and base plate groups, the electrical circuit, and tightening torques for the major bolts and nuts.
It is a PDF, so it downloads in minutes and prints clean. Run off the circuit diagram and the torque table, carry them out to the tower, and let those pages get dirty while the file stays safe on your drive.
Complete the set for your LIGHT BOY LB446HB-1, LB446H-1
- Operator Manual: Yanmar LB446HB-1, LB446H-1 Lighting Tower Operator Manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 7 | Warning Symbols (Service Shop, Working Wear), Loading Generator (Tools to Be Used, Parts, Bolt Tightening Torque, Product Handling, Installation, Transport, Warning Labels) |
| Safety | 8-12 | Warning Symbols (Service Shop, Working Wear), Loading Generator (Tools to Be Used, Parts, Bolt Tightening Torque, Product Handling, Installation, Transport, Warning Labels) |
| Outline of Lighting Tower | 13 | Specifications, External View and Components of Lighting Tower |
| Outline of Lighting Tower | 14-15 | Specifications, External View and Components of Lighting Tower |
| Structure of Lighting Tower | 17 | Outline of Structure, Electrical Group (Balloon Unit, Balloon Assembly, Stand Assembly, Lamp Stand Unit, Lighting Unit Assembly, Lamp Stand Assembly, Power Cable Unit) |
| Structure of Lighting Tower | 18-26 | Outline of Structure, Electrical Group (Balloon Unit, Balloon Assembly, Stand Assembly, Lamp Stand Unit, Lighting Unit Assembly, Lamp Stand Assembly, Power Cable Unit) |
| Disassembly and Assembly | 28-46 | Before Starting Operation, Disassembly and Assembly Procedures |
| Inspection and Maintenance | 47 | Electrical Group, Mast Group, Base Plate Group, Outrigger Group, Grounding |
| Inspection and Maintenance | 48-59 | Electrical Group, Mast Group, Outrigger Group, Base Plate Group, Grounding |
| Periodic Inspection Items | 61 | Lamp, Balloon, Mast, Cart, Electric |
| Periodic Inspection Items | 62-62 | Inspection Items and Intervals |
| Circuit | 66-68 | Electrical Circuit |
| Tools, Instruments and Other Materials for Inspection and Maintenance | 69 | Machines, Tools and Instruments, General Tools, Special Tool, Measuring Instrument, Materials Required |
| Tools, Instruments and Other Materials for Inspection and Maintenance | 70-71 | Machines, Tools and Instruments |
| Bolts and Nuts Tightening Torques | 73 | General Instructions, Base Plate Components, Mast and Lamp Components, Steering Components, Outrigger Components, Brake Components |
| Bolts and Nuts Tightening Torques | 74-75 | General Instructions, Major Bolts and Nuts |
| Troubleshooting | 78-79 | Troubleshooting Procedures |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Lamp Type | Metal Halide Lamp type S | p. 14 |
| Lamp Model | HIE400W/C/U/EURO/4K | p. 14 |
| Grounding Cable Thickness | appropriate to the load carrying capacity according to your countryís regulation and industrial standards | p. 59 |
| Ground Rod Resistor | 10 ohms or less | p. 59 |
| Rated voltage | 130 V | p. 14 |
| Rated life (lamps) | 20000 h | p. 14 |
| LB446HB-1 | ||
| Balloon diameter | 3'9" (1150 mm) | p. 14 |
| Mast min. & max. height, LB446HB-1 | 8' to 14'8" (2440 to 4470 mm) | p. 14 |
| Dry weight (w/o generator), LB446HB-1 | 214 (97) lbs.(kg) | p. 14 |
| LB446H-1 | ||
| Mast min. & max. height, LB446H-1 | 6'9" to 13'8" (2060 to 4160 mm) | p. 14 |
| Dry weight (w/o generator), LB446H-1 | 231(105) lbs.(kg) | p. 14 |
