This 532-page Daewoo Solar 450LC-V Shop Manual PDF (OEM #023-00037E) breaks down the complete Track Excavator, from the main pump and regulator to the A6V160HD travel motors, swing motor, and the boom, arm, and bucket group. Inside: factory hydraulic and electrical schematics, plus a dedicated troubleshooting, testing, and adjustment section for every circuit; boom, arm, bucket, swing, travel, and pilot pressure. You get step-by-step disassembly and reassembly procedures for cylinders, the swing reduction gearbox, center joint, and pilot control valves, backed by standard torque tables. The fuel tank holds 670 liters; torque 1/2-inch split flanges to 2.1-2.5 kg-m (15-18 ft lbs) before you pressurize the system. Your machine is down and burning daylight? Get factory numbers, not forum guesses. Bookmarked with a full text layer: search any spec, jump to the right section, and get back on the sticks.
What's Inside This Daewoo Solar 450LC-V Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 7-30 | Track Excavator Safety S0102000 |
| Specifications | 31-52 | Specifications for Solar 450LC-V S0202050 |
| General Maintenance | 53-80 | General Maintenance Procedures S0302000, Standard Torques S0309000 |
| Upper Structure | 81-148 | Cab S0402000, Counterweight S0403000, Fuel Tank S0405090, Fuel Transfer Pump S0405500, Swing Bearing S0407000, Swing Reduction Gearbox S0408060 |
| Lower Structure and Chassis | 149-180 | Track Assembly S0505120 |
| Engine and Drive Train | 181-220 | Air-Conditioner S0605010, Drive Coupling (Main Pump) S0609000 |
| Hydraulic System Troubleshooting, Testing and Adjustment | 221-250 | Boom Operating Circuit, Arm Operating Circuit, Bucket Operating Circuit, Swing Operating Circuit, Travel Operating Circuit, Pilot Pressure |
| Accumulator | 251-256 | Accumulator Operation, Nitrogen Pre-Charge, Accumulator Charging |
| Center Joint (Swivel) | 257-264 | Center Joint Operation, Inspection, Testing, Disassembly, Reassembly |
| Cylinders | 265-284 | Cylinder Theory of Operation, Piston Nut, Piston Jig, Cylinder Disassembly, Cylinder Reassembly |
| Swing Motor | 285-312 | Swing Motor Theory of Operation, Anti-Cavitation Make-Up Valve, Relief Valve, Swing Brake Operation, Swing Motor Disassembly, Swing Motor Reassembly |
| Travel Motor (with Gearbox) (A6V160HD) | 313-370 | Travel Motor Theory of Operation, Reduction Gearbox Operation, Travel Motor Disassembly, Travel Motor Reassembly, Rotary Group Adjustment |
| Main Pump (with Regulator) | 371-404 | Main Pump Description, Pump Regulator Operation, Horsepower Control, Pump Regulator Disassembly, Main Pump Reassembly |
| Pilot Control Valve (Work Lever / Joystick) and Travel Control Valve (Jeil Hydraulics) | 405-438 | Pilot Control Valve Operation, Joystick Disassembly, Travel Control Valve Operation, Travel Control Valve Disassembly |
| Hydraulic Schematic (Solar 450LC-V) | 439-446 | Hydraulic Schematic S0792130, Pedal Valve with Damper, Simplified Swing Brake, General Notes |
| Electrical System | 447-502 | Electrical System S0802150, EPOS-V Controller Self-Diagnosis, Malfunction Display Readout and Reset, Engine Throttle Controller |
| Electrical Schematic (Solar 450LC-V) | 503-508 | Electrical Schematic S0892130, Full Machine Wiring Diagram |
| Attachments | 509-532 | Boom and Arm S0902110, Bucket S0904000 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hose clamp torque, hydraulic system (Worm Drive, 1-3/4 in. open diameter and under) | 0.2 - 0.3 kg•m (20 - 30 In. Lbs.) | p. 75 |
| Hose clamp torque, hydraulic system (Worm Drive, "Ultra-Tite") | 1.1 - 1.2 kg•m (95 - 105 In. Lbs.) | p. 75 |
| Fuel Tank Capacity | 670 liters (177 U.S. gal.) | p. 107 |
| Maximum Output Speed (swing reduction gearbox) | 74.3 rpm | p. 131 |
| Maximum Output Torque (swing reduction gearbox) | 1,176.8 kg•m (8,512 ft lbs) | p. 131 |
| Lower roller, axle A (Normal) | 85 mm (3.35 in.) | p. 156 |
| Lower roller, axle A (Recommended Limit for Maintenance) | 84.5 mm (3.33 in.) | p. 156 |
| Cab air-conditioner recirculation filter cleaning interval | 500 hours | p. 185 |
| Pressure at SH port of hydraulic brake | 4 bar (58 psi) | p. 243 |
| Pressure at motor makeup valve | 2.5 bar (36 psi) | p. 243 |
| Clearance between the stem and body of the center swivel | 0.1 mm (0.0039") | p. 262 |
| Hydraulic Reservoir Capacity | 340.0 liters (90 U.S. gal.) | p. 41 |
Daewoo Solar 450LC-V Common Problems This Manual Covers
Daewoo Solar 450LC-V swing won't rotate or turns intermittently, brake drags after warm-up
Check swing brake release pressure at the SH port; the brake needs 4 bar (58 psi) to release, per the swing troubleshooting steps on page 243. If pressure is low, trace the pilot line for kinks and test the brake release valve. Confirm the motor makeup valve holds 2.5 bar before condemning the swing motor.
Manual Section: Swing System Troubleshooting p. 243Hydraulic system whines after cold startup, boom and arm move slow under load
Check hydraulic oil level first; the reservoir holds 340 liters and a low tank pulls air into the suction line. Bleed the pump case and inspect suction fittings for leaks. Then gauge main relief pressure against the 320 kg/sq cm normal setting listed on page 47 before touching any adjustments at the pump.
Manual Section: Hydraulic System Troubleshooting p. 221Oil leaking from center joint area, drips on undercarriage after swing operation
Inspect the center joint seals and O-rings for hardening and dirt tracks. Measure clearance between the stem and body; anything past 0.1 mm (0.0039 in.) means the sliding surfaces are worn and the joint needs rebuilding, per the inspection procedure on page 262. Replace every O-ring during reassembly and never reuse the old ones.
Manual Section: Center Joint (Swivel) p. 257Swing reduction gearbox runs hot, oil seeping from case, whines during full-load rotation
Drain the gearbox and check the oil for metal flake before anything else. Verify oil level and grade, then work through the troubleshooting chart covering no rotation, leakage, and excess heat. If the unit needs to come out, rig a hoist first; the assembly weighs 170 kg (375 lbs).
Manual Section: Swing Reduction Gearbox Troubleshooting p. 134Track tension won't hold, rollers and idlers wearing fast, machine tracks crooked
Measure lower roller wear at the axle; normal diameter is 85 mm (3.35 in.) and 84.2 mm (3.31 in.) is the limit for use, per the wear tables on page 156. Check upper rollers against the 59.2 mm limit as well. Reset track tension and replace any roller past its limit before it chews up the link rails.
Manual Section: Lower Structure and Chassis p. 156Frequently Asked Questions
What does EPOS-V code 0.2 mean on the Solar 450LC-V?
If the EPOS-V indicator panel displays code 0.2, it indicates the swing priority proportional valve is not functioning, except in the minimum fail-safe mode. You should pull out the EPOS-V indicator panel from underneath the operator's seat and perform the self-diagnosis test as described in the Electrical section of the manual. p. 243
What is the procedure for resetting a fault code on the EPOS-V controller?
For most short-circuit fault codes (1 through 6), you must correct the problem and then turn the starter switch from the 'OFF' to the 'ON' position to reset the system. For open-circuit fault codes (7 through 16), the system will perform an automatic reset once the problem is corrected. p. 500
What is the required torque for the mounting nuts on the cabin floor?
When installing the cabin, the mounting nuts on the four corners of the cabin floor must be tightened to a torque of 20.2 kg•m (146 ft lbs). p. 88
What is the recommended fuel tank capacity for the Solar 450LC-V?
The fuel tank capacity for the Solar 450LC-V is 670.0 liters (177 U.S. gal.). p. 107
What is the tightening torque for the bolts on the swing reduction gearbox cover plate?
When securing the cover plate to the casing of the swing reduction gearbox, the eight bolts (39) must be tightened to 700 - 740 kg•cm (51 - 54 ft lbs). p. 143
What do I get after purchasing this Daewoo Solar 450LC-V manual?
A 532-page Shop Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Am I free to print this Daewoo Solar 450LC-V Shop Manual?
Yes. The PDF is DRM-free, so printing works from any reader and any printer.
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