Doosan GV158TIC, GV180TIC, GV222TIC Generator Natural Gas Engine Operation and Maintenance Manual (tp6838)

These Doosan GV158TIC, GV180TIC and GV222TIC natural gas engine sets usually sit in power plants, hospitals or industrial sites, running long hours in heat, dust and vibration. This manual is what I use to set up a solid service rhythm so the engine starts cleanly, picks up load smoothly and doesn’t surprise you with shutdowns. When I’m chasing a rough-running condition after a long standby period, I lean on this book to verify scheduled inspections, adjust service intervals to the site conditions, and confirm I haven’t skipped a small check that turns into a big failure later.

Applications & Use Cases

• Plan routine services so oil, filters and ignition parts are changed before they cause unstable output.
• Build a preventive inspection checklist for operators to walk daily and weekly.
• Trace small performance changes—hard starting, misfire, derate—back to missed or overdue maintenance items.
• Align service intervals with load profile, ambient temperature and fuel quality on your specific site.
• Train new techs on a consistent inspection logic so every engine in the fleet is checked the same way.

FAQ

Q: Can I keep this manual on a tablet in the genset room?

A: Yes, it works well digitally; you can zoom diagrams and search text while you’re at the unit.

Q: Should I still print parts of it?

A: I’d print the key maintenance schedules and keep them in a plastic sleeve near the engine for quick reference.

Safety Note

Always lock out the generator set and verify gas supply isolation before performing any inspection or service.

Doosan GV158TIC, GV180TIC, GV222TIC Generator Natural Gas Engine Index:

1. Safety Regulations & Engine Specifications …………………………………………………………… 1
1.1. General notes 1.3. Engine characteristics
1.2. Handle compressed natural gas safety 1.4. Engine assembly
2. Technical Information …………………………………………………………………………………………… 15
2.1. Engine model and serial number 2.4. Diagnosis and Remedy
2.2. Diagnostic display module(CPU-95) 2.5. Engine inspection
2.3. Engine characteristic
3. Disassembly and Reassembly of Major Components …………………………………………. 45
3.1. Engine disassembly 3.5. Speed controller setting
3.2. Engine inspection 3.6. Display module
3.3. Engine reassembly 3.7. Diagnosis and remedies of trouble
3.4. Starting and Trial Operation causes
4. Electrical Equipment …………………………………………………………………………………………… 108
4.1. Gas fuel circuit 4.4. Ignition controller
4.2. Electrical wiring diagram 4.5. Ignition control module
4.3. Speed controller
5. Maintenance of major parts ……………………………………………………………………………….. 119
5.1. Turbo charger 5.4. Thermostat
5.2. Lubricating System 5.5. V – Belts
5.3. Cooling system 5.6. Air Intake System
6. Engine Installation ……………………………………………………………………………………………… 136
6.1. Installing 6.2. Inspection prior to installation
7. Special Tool List ………………………………………………………………………………………………… 139
• Appendix ……………………………………………………………………………………………………………. 141
• Parts & After service center
• Applications for DOOSAN Engine
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