Looking for a Daewoo Solar 250LC-V shop manual PDF that actually came from the factory? This 567-page shop manual (OEM #023-00031E) covers your track excavator end to end, from swing bearing to travel motor. Inside: complete hydraulic schematics, electrical wiring diagrams for the EPOS-V controller and monitoring system, and full disassembly and reassembly procedures for the main pump with regulator, main control valve, swing motor, and travel motor with gearbox. You also get a dedicated hydraulic troubleshooting, testing and adjustment section covering pilot pressure, the power mode valve, and boom/swing priority. Mic the lower roller axle: 70 mm new, replace at 68.30 mm. Clean the air filter every 500 hours. No more chasing pilot pressure faults with forum guesses. Bookmarked with a real text layer; punch in a keyword, jump to the spec, get back on the sticks.
What's Inside This Daewoo Solar 250LC-V Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 4-25 | General Safety Essentials, Lifting Capacity, Work-Site Precautions, Operation, Maintenance, Shipping |
| Specifications | 26-49 | General Dimensions, Working Range, Performance Tests, Cylinder Performance, Travel Motor Jack-Up Test |
| General Maintenance | 50-71 | Welding Precautions, Hydraulic System Cleanliness, Bearing Inspection, Standard Torques, Loctite Fastener Adhesives |
| Upper Structure | 72-88 | Cab, Counterweight, Fuel Tank, Fuel Transfer Pump, Swing Bearing, Swing Reduction Gearbox |
| Fuel System | 89-104 | Fuel Tank Removal, Fuel Tank Installation, Fuel Transfer Pump, Rotor and Vane Replacement, Amateur Replacement |
| Swing System | 105-125 | Swing Bearing Maintenance, Swing Reduction Gearbox Disassembly, Swing Reduction Gearbox Reassembly, Swing Motor Theory |
| Lower Structure and Chassis | 126-151 | Track Assembly, Track Tension, Front Idler Roller, Lower Roller, Upper Roller, Track Adjusting Cylinder |
| Engine and Drive Train | 152-188 | Air-Conditioner, Drive Coupling, Main Pump Installation, Special Tools |
| Hydraulic System Troubleshooting, Testing and Adjustment | 189-216 | Hydraulic Schematic, Working Components, Pilot Pressure, Power Mode Valve, Boom/Swing Priority Valve, Pressure Up Valve |
| Accumulator | 217-222 | Accumulator Charging, Nitrogen Pre-Charge, Diaphragm, Gas-Charged Storage |
| Center Joint (Swivel) | 223-231 | Center Joint Maintenance, Inspection, Testing, Disassembly, Reassembly |
| Cylinders | 232-250 | Cylinder Theory of Operation, Piston Nut, Piston Jig, Disassembly, Reassembly |
| Swing Motor | 251-276 | Swing Motor Theory, Relief Valve, Swing Brake, Disassembly, Reassembly |
| Travel Motor (with Gearbox) | 277-334 | Gearbox Reduction Unit, Travel Motor Theory, Overload Valve, Brake Valve, Disassembly, Reassembly |
| Main Pump (with Regulator) | 335-368 | Pump Regulator, Horsepower Control, Power Shift, Pump Disassembly, Pump Reassembly |
| Main Control Valve | 369-435 | Control Valve Operation, Arm Priority Circuit, Bucket Unity Check, Main Relief Valve, Overload Relief Valve, Boom Load Holding Valve |
| Electrical System | 486-545 | Engine Starting Circuit, Engine Preheating, Monitoring System, EPOS-V Controller, Engine Throttle Controller |
| Attachments | 551-567 | Boom and Arm Removal, Boom and Arm Installation, Bucket Tooth Replacement, Bucket Shimming, Bucket Reversal |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Torque for hydraulic system hose clamps (Worm Drive - 44 mm Open Diameter & Under) | 0.5 - 0.6 kg·m | p. 67 |
| Torque for hydraulic system hose clamps (Worm Drive - All Ultra-Tite) | 0.5 - 0.6 kg·m | p. 67 |
| Lower roller, axle (Normal Dimension) | 70 mm | p. 132 |
| Lower roller, axle (Recommended Limit for Maintenance) | 68.60 mm | p. 132 |
| Air filter cleaning interval | 500 hours | p. 155 |
| Hydraulic reservoir return line filter rating | 10 micron | p. 194 |
| Pilot circuit filter rating | 10 micron | p. 194 |
| Clearance between cover and thrust plate | 0.5 mm | p. 230 |
| Clearance between stem and thrust plate | 0.5 mm | p. 230 |
| Battery capacity | 12V 100AH | p. 492 |
| Fuel Tank Capacity | 360.0 liters | p. 36 |
| Hydraulic System Capacity | 240.0 liters | p. 36 |
Daewoo Solar 250LC-V Common Problems This Manual Covers
Daewoo Solar 250LC-V hydraulic functions slow and weak, boom and travel sluggish under load
Check main relief pressure with a gauge; it should hold 330 kg/sq cm in normal mode, the spec listed on page 43. Test both pumps at full stroke. Replace the return line filter, a 10 micron element per page 194, plus the pilot filter if the oil looks dark. Inspect pump case drain flow for excess bypass.
Manual Section: Hydraulic System Troubleshooting, Testing and Adjustment p. 190Hydraulic oil temperature climbs high during normal digging, engine overheats after an hour of work
Clean the radiator and oil cooler fins with compressed air, blowing from the fan side out. Pull the air filter elements and clean or replace them; the schedule on page 155 calls for cleaning every 500 hours. Check coolant level cold, inspect fan belt tension, and verify the shroud and seals are intact.
Manual Section: Engine and Drive Train p. 155Engine cranks slowly or will not turn over after sitting, battery goes dead overnight
Load test the battery first; this machine runs a 12V 100AH battery, spec on page 493. Check voltage at the starter B terminal while cranking, then clean and tighten the ground straps at the frame. If the electrics check out, drain water from the fuel tank and change the fuel filter.
Manual Section: Electrical System p. 492Hydraulic oil leaking from center swivel joint area, oil pooling under machine after travel
Wipe the swivel dry and run travel both directions to find the leak point. Replace the seal kit if oil returns; during reassembly measure stem to body clearance, which must not exceed 0.1 mm per the inspection table on page 230. Torque worm drive hose clamps to 0.5 to 0.6 kg·m, from the chart on page 67.
Manual Section: Center Joint (Swivel) p. 230Track tension loose, rollers worn flat, machine wanders and throws tracks on slopes
Measure the lower roller flanges and axles before blaming the tension cylinder. Lower roller axles wear from 70 mm new to a 68.30 mm limit; the wear tables on page 132 give every dimension. Replace rollers past the limit, then grease the track adjusting cylinder to set tension and inspect the recoil spring.
Manual Section: Lower Structure and Chassis p. 132Boom drifts down with bucket loaded, cylinders creep when control levers sit in neutral
Test holding capability with a loaded bucket raised, then check the overload relief and boom load holding valve in the main control valve, covered starting on page 369. Verify main relief pressure holds 330 kg/sq cm, the spec on page 43. If drift continues, reseal the cylinders; worn piston seals bypass oil internally.
Manual Section: Main Control Valve p. 369Frequently Asked Questions
How do I clear error codes on a Daewoo Solar 250LC-V excavator?
To clear a malfunction code, first correct the underlying problem. Once the issue is resolved, turn the starter switch from the 'OFF' position to the 'ON' position to reset the system. For some open circuit faults, the system will reset automatically once the problem is corrected. p. 117
What are the torque specifications for the counterweight mounting bolts on a Solar 250LC-V?
The counterweight mounting bolts for the Solar 250LC-V must be tightened to a torque of 250 kg•m. p. 87
What is the fuel tank capacity for the Solar 250LC-V?
The fuel tank capacity for the Solar 250LC-V is 360.0 liters. p. 93
What is the recommended preheat time for the engine preheating system?
The preheat time for the engine preheating system is approximately 19 seconds. A built-in timer in the instrument panel will activate an indicator light once this time has elapsed. p. 71
What is the preset automatic deceleration engine speed?
The preset automatic deceleration engine speed for the machine is 1400 rpm. p. 106
Is this Daewoo Solar 250LC-V manual a download or a disc?
A single searchable PDF file of 567 pages, downloadable right after payment. Nothing ships, nothing waits in the mail.
Are there any print restrictions on this Daewoo Solar 250LC-V manual?
Yes. No DRM, nothing blocks printing, so run off the pages you need on whatever printer you have.
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