Wrenching on your Solar 030 Plus or 035? This 269-page Daewoo shop manual PDF (OEM #023-00046E) is the factory book for both mini excavators. Inside: exploded views of the main pump, swing motor, and travel motor, a full control valve disassembly section, hydraulic cylinder rebuild steps, and maintenance standards for crawlers, idlers, rollers, and sprockets. You also get a complete engine section with fuel, cooling, and lubrication systems, plus troubleshooting charts for start failure, overheating, and oil pressure problems. Set fan belt deflection at 10 to 12 mm, and pull M8 bolts to 1.80 to 2.10 kg·m straight from the factory torque tables. Stop measuring track wear by eye and guessing at rebuild clearances. Bookmarked by system and text-searchable; type a spec, hit enter, get back to the machine.
What's Inside This Daewoo Solar 030 Plus / 035 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 5-26 | Safety Information, Safety Messages, Safe Operation, Location of Safety Labels, Warning Tags |
| General Information | 27-43 | Excavator Components, External Views, Specifications, Weights, Identification Number, Grease Points, Recommended Oils, Inspection and Maintenance |
| Working Attachments | 44-49 | Maintenance Standards, Inspection and Correction, Spontaneous Settlement Measurement, Speed Measurement |
| Engine (Removal and Installation) | 50-53 | Engine Specifications, Performance Curve, Engine Number Location, Engine RPM Standards |
| Hydraulic System | 54-121 | Main Pump, Hydraulic Oil Filter, Control Valve, Swing Motor, Travel Motor, Hydraulic Cylinder, Swivel Joint, Joy Stick, Solenoid Valve |
| Undercarriage | 122-140 | Crawlers, Idler, Track Tension Adjusting Cylinder, Track Roller, Sprocket, Crawler Replacement Procedure |
| Electrical Device | 141-144 | Electrical Circuit Diagram, Troubleshooting, Starter, Regulator, Alternator |
| Engine Section | 146-231 | Cooling Fan, Water Pump, Cylinder Head, Cylinder Head Cover, Cylinder Block, Oil Pan, Injection Pump, Lubricating System |
| Engine Auxiliary Systems | 232-253 | Lubricating System, Cooling System, Fuel System |
| Troubleshooting | 254-259 | Engine Start Failure, Unstable Rotation, Insufficient Output, Overheat, Oil Pressure and Consumption |
| Special Tools and Conversion Tables | 260-269 | Special Tools List, Length Conversion, Area Conversion, Volume Conversion, Mass Conversion, Temperature Conversion |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bolt and nut tightening torque M6 (4T) | 0.80~0.95 kg•m | p. 41 |
| Bolt and nut tightening torque M8 (4T) | 1.80~2.10 kg•m | p. 41 |
| Bolt and nut tightening torque M6 (7T) | 1.00~1.15 kg•m | p. 41 |
| Bolt and nut tightening torque M8 (7T) | 2.40~2.80 kg•m | p. 41 |
| Fan belt deflection | 10~12mm | p. 34 |
| Alternator output | 12V-35A | p. 47 |
| Cooling Fan Drive Belt Deflection | 8.0 - 12.0 mm (0.3 - 0.5 in.) | p. 170 |
| Fan belt tension deflection amount | 8 to 10 mm (0.315 - 0.3937 in.) | p. 231 |
| Engine Oil Capacity | 6.3L | p. 32 |
| Fuel Tank Capacity | 40L | p. 32 |
| Coolant Capacity | 7L | p. 32 |
| Swing Speed | 8.3 rpm | p. 31 |
Daewoo Solar 030 Plus / 035 Common Problems This Manual Covers
Daewoo Solar 035 excavator cranks but won't fire, no start on cold mornings
Check battery connections and fuel level first; the tank holds 40 liters and running it near empty pulls air into the lines. Work through the engine start chart on page 254 covering starter, battery, fuel system, and preheating circuit. Test starter pinion engagement per the procedure on page 142 if the engine won't rotate.
Manual Section: Troubleshooting p. 254Hydraulic pressure drops suddenly, bucket and boom feel weak, all functions slow under load
Test main relief pressure at the pump; P1 and P2 should hold 200 kg/cm2 on all models, spec listed on page 32. If pressure is low, inspect the suction and return filters using the piping diagram on page 61. Run the pump performance test in the Main Pump section before condemning the pump itself.
Manual Section: Main Pump p. 54Swing won't rotate or turns weak and jerky, upper structure drifts when stopping
Check pilot pressure to the swing brake release before pulling anything apart. Inspect the shockless relief valve using the inspection and adjustment procedures in the Swing Motor section, page 80, and compare wear against the maintenance standards there. If you remove the relief valve on the control valve, torque it back to 3.0 to 3.5 kg-m per page 78.
Manual Section: Swing Motor p. 80Battery goes dead overnight and won't hold a charge, warning lamp flickers at idle
Test alternator output first; it is rated 12V-35A, spec on page 47. Check fan belt tension, a firm thumb push midway between the pulleys should deflect the belt 10 to 12 mm per page 34. Then work the electrical troubleshooting charts starting on page 142 for charging failure, loose joints, and blown fuses before buying a battery.
Manual Section: Electrical Device p. 142Engine overheats and pushes coolant after an hour of steady digging
Check coolant level with the engine cold; the system holds 7 liters, capacity listed on page 32. Verify fan belt deflection of 10 to 12 mm with firm thumb pressure between the pulleys, page 34. Inspect the thermostat and water pump circulation in the Cooling System section, page 236, and blow debris out of the radiator core before replacing parts.
Manual Section: Cooling System p. 236Frequently Asked Questions
What are the torque specifications for the engine bolts on the Daewoo Solar 030 Plus?
The tightening torque for the cylinder head bolts on the 3LD1 engine is 8.5–9.5 kg·m (61–69 ft. lbs.) for the M12 x 1.5 bolts, and 2.5–3.5 kg·m (18–25 ft. lbs.) for the M8 x 1.25 bolts. p. 223
What are the replacement specifications for the battery?
The manual specifies that batteries emit hydrogen gas which can explode. It is recommended to use a voltmeter and hydrometer to check the battery, and to heat frozen batteries slowly up to 16°C (60°F) before recharging. p. 19
What is the standard valve clearance for the engine?
The standard intake and exhaust valve clearance for the engine (cold) is 0.20 ± 0.05 mm (0.008 ± 0.002 inches). p. 170
What is the capacity of the hydraulic oil tank for the Solar 030 Plus and Solar 035?
The hydraulic oil tank capacity is 60 liters for the Solar 030 Plus and 70 liters for the Solar 035. p. 65
What is the correct deflection for the cooling fan drive belt?
The cooling fan drive belt deflection should be 8.0–12.0 mm (0.3–0.5 inches) when a force of 10 kg (22 lbs.) is applied midway between the fan pulley and the generator pulley. p. 171
Is this Daewoo Solar 030 Plus manual a download or a disc?
A 269-page Shop Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Does this Daewoo Solar 030 Plus manual allow printing?
Yes. The PDF is DRM-free, so printing works from any reader and any printer.
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