All 658 pages of this Daewoo Solar 300LC-V Shop Manual PDF (OEM #023-00043E) focus on one machine: your Solar 300LC-V track excavator, from swing bearing to track assembly. You get the complete hydraulic schematic, factory electrical wiring diagrams, and a thorough troubleshooting, testing, and adjustment section covering the Kawasaki main pump, Kayaba main control valve, and Toshiba swing motor. Inside: step-by-step rebuilds for cylinders, travel motor with gearbox, center joint, swing reduction gear, and boom and arm attachments, backed by standard torque tables. Set the boom and arm overload relief valves to 360 kg/cm2 (5,112 psi), then confirm pilot pressure at the pump reads 40 ±5 bar (580 psi). No more bleeding a circuit twice because a forum thread guessed wrong. Bookmarked with a real text layer; search any spec from your phone in the cab and get back on the sticks.
What's Inside This Daewoo Solar 300LC-V Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 7-46 | Track Excavator Safety, Specifications for Solar 300LC-V |
| Specifications | 47-70 | Specifications for Solar 300LC-V S0202080K |
| General Maintenance | 71-98 | General Maintenance Procedures S0302000, Standard Torques S0309000 |
| Upper Structure | 99-164 | Cab S0402040K, Counterweight S0403050K, Fuel Tank S0405110K, Fuel Transfer Pump S0405500, Swing Bearing S0407000, Swing Reduction Gear S0408070K |
| Lower Structure and Chassis | 165-192 | Track Assembly S0505000 |
| Engine and Drive Train | 193-228 | Air-Conditioner S0605060K, Drive Coupling (Main Pump) S0609010K |
| Hydraulic System Troubleshooting, Testing and Adjustment S0702170K | 231-260 | Main Pump Assembly, Hydraulic Control Valve, Swing Motor, Travel Motors, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Swing Gearbox |
| Accumulator S0703010K | 261-312 | Center Joint (Swivel) S0704080K, Cylinders S0705000 |
| Swing Motor (Toshiba MFC200) S0707270K | 313-344 | Swing Motor, Mechanical Brake, Make-Up Valve, Relief Valve, Bypass Valve, Time Delay Valve, Cylinder Assembly |
| Travel Motor (with Gearbox) S0707315K | 345-396 | Hydraulic Motor, Reduction Gear, Counter Balance Valve, Relief Valve, Negative Brake, Swash Tilting Assembly, Planetary Gear Assembly |
| Main Pump (Kawasaki) S0708315K | 397-444 | Axial Piston Pump, Swash Plate Group, Rotary Group, Valve Block Group, Regulator, Gear Pump, Servo Piston |
| Main Control Valve (Kayaba) S0709401K | 445-502 | Main Control Valve, Antidrift Valve, Main Relief Valve, Overload Relief Valve, Low Pressure Relief Valve, Spool Assembly, Load Check Valve |
| Pilot Control Valve (Work Lever / Joystick) S0709451K | 503-546 | Travel Control Valve (with Damper) S0709820K |
| Hydraulic Schematic (S300LC-V) S0792160K | 547-552 | Hydraulic Tank, Travel Motor, Swing Motor, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Control Valve, Shuttle Valve |
| Electrical System | 553-636 | Electrical System S0802220K, Electrical Schematic (S300LC-V) S0892160K |
| Attachments | 637-658 | Boom and Arm S0902000, Bucket S0904005K |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel tank capacity | 450 liters (119 U.S. gal) | p. 121 |
| Overload relief valves (boom operating circuit) | 360 kg/cm2 (5,112 psi) | p. 236 |
| Overload relief valves (arm operating circuit) | 360 kg/cm2 (5,112 psi) | p. 237 |
| Hex socket bolt (22) | 7,300 ±20 kg•cm | p. 366 |
| Hex head bolt (31) | 690 ± 10 kg•cm | p. 366 |
| Tightening torque of relief valve (350) | 1,800±100 kg•cm (130 ±7 ft lb) | p. 388 |
| Tightening torque of stopper (27) bolt (31) | 690±10 kg•cm (50 ±1 ft lb) | p. 390 |
| Pilot filter pressure increase threshold | 1.0 kg/cm2 (14 psi) | p. 575 |
| Wear points on the working surfaces of tooth points | 8 mm to 10 mm (1/3" to 1/2") | p. 649 |
| Hydraulic System Capacity | 290 liters | p. 58 |
| Hydraulic Reservoir Capacity | 160 liters | p. 58 |
| Main Relief Pressure (Normal) | 330 kg/cm2 | p. 65 |
Daewoo Solar 300LC-V Common Problems This Manual Covers
Daewoo Solar 300LC-V hydraulic system runs hot and loses power under load, cycles slow when warm
Check hydraulic oil level first; the reservoir holds 160 liters and a low level pulls air into the pump inlet. Inspect the suction strainer, then wash out the oil cooler fins and dust net. Stall a cylinder and read main pressure against the spec on page 245: 330 bar plus 5 bar. Below that, adjust the main relief valve.
Manual Section: Hydraulic System Troubleshooting p. 245Final drive low on oil, leaking at the hub, or growling during travel
Drain the travel reduction gear and inspect the oil for metallic particles; heavy glitter means internal planetary wear. Refill with 4.3 liters of gear oil per the capacity listed on page 359. If the hub leaks, replace the floating face seal, then torque the hex socket bolts to 7,300 kg•cm as specified on page 366.
Manual Section: Travel Motor (with Gearbox) Troubleshooting p. 359Swing motor whines and swing speed drops, oil seeping from the swing gearbox
Test swing circuit pressure at the motor port; the spec on page 326 calls for 284.5 kg/cm2 working pressure. A low reading points to relief valve trouble or motor slip, not the gearbox. Check gearbox oil level and pull a drain sample; metallic paste means worn planetary gears. Replace the shaft seal if oil runs down the housing.
Manual Section: Swing Motor (Toshiba MFC200) Troubleshooting p. 326Joysticks feel dead or mushy, all functions respond slowly on cold mornings
Tee a gauge into the pilot line and verify 40 ±5 bar at the pump per page 242, then confirm joystick output at 23.5 ±1.5 bar. Low pump-side pressure with normal main pressure means a plugged pilot filter; replace the element, do not clean it. Bleed air from the pilot lines before returning the machine to work.
Manual Section: Pilot Control Valve (Joystick) Troubleshooting p. 242Engine hunts at idle, loses power under load, or stalls shortly after refueling
Drain the water separator daily and dump sediment from the fuel tank drain valve; the tank holds 450 liters (page 121) and collects condensation fast in humid weather. Replace both fuel filter elements, bleed the system, and crank until the engine runs clean. Fill the tank at shift end to keep condensation down.
Manual Section: Upper Structure p. 121Frequently Asked Questions
How do I reset the service reminder for filters and oils on a Daewoo Solar 300LC-V?
To reset the operating hours for filters and oils, navigate to the 'Filter/Oil information' mode on the instrument panel. Once the filter or oil has been changed, select the reset function to clear the current operating hours, which will then track the time until the next service interval. p. 581
What are the torque specifications for the swing reduction gear cover bolts?
The hex bolts (M16x40) used to secure the swing reduction gear cover should be tightened to a torque of 392 Nm. p. 342
What is the procedure for checking the swing relief valve pressure?
To check the swing relief valve pressure, connect two 600 bar (8,700 psi) pressure gauges to the inlet and outlet measuring ports on top of the swing motor. With swing locks engaged, the pressure should be between 280 and 290 bar (4,060 psi and 4,205 psi). p. 253
What is the fuel tank capacity for the Solar 300LC-V?
The fuel tank capacity for the Solar 300LC-V is 450 liters (119 U.S. gal). p. 121
What is the tightening torque for the counterweight mounting bolts?
The four mounting bolts for the counterweight on the Solar 300LC-V must be tightened to a torque of 250 kg•m (1,807 ft lb). p. 115
How quickly can I access this Daewoo Solar 300LC-V manual after buying?
Straight to your device: 658 pages of searchable Shop Manual, downloadable the moment payment goes through.
Can I print a copy of this Daewoo Solar 300LC-V Shop Manual for the shop?
Printing is allowed without restriction. Pull the pages you need for the job and bin them when they get greasy.
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