Part of the Doosan Repair Manuals.
Every one of the 648 pages in this Doosan DX19 Shop Manual PDF (OEM #7278164EN) covers a single machine: your DX19 compact excavator. Inside: step-by-step teardown and reassembly for the boom, arm, swing, bucket, and blade cylinders, plus control valve disassembly, piston and gear pump service, and travel and swing motor repair. You also get a full engine section (cylinder head, crankshaft, camshaft and timing gears), electrical coverage from battery to starter, undercarriage maintenance, and a dedicated specifications chapter. Set the hydraulic pump plug between 30 and 34 N-m, then pull the track roller bolts down to 190 to 210 N-m (140 to 155 ft-lb). Your excavator is dead in the yard and the forums are guessing. Bookmarked chapters and a real text layer let you jump straight to the right spec and get wrenching.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety & Maintenance | 3-88 | Maintenance Safety, Lifting and Blocking the Excavator, Operator Cab |
| Hydraulic System Information and Cylinders (Boom, Arm, Boom Swing) | 89-120 | Hydraulic Symbols, Troubleshooting, Boom Cylinder, Arm Cylinder, Boom Swing Cylinder |
| Cylinders (Bucket, Blade, Track Frame Expansion) and Valves | 121-162 | Bucket Cylinder, Blade Cylinder, Track Frame Expansion Cylinder, Main Relief Valve, Port Relief Valve |
| Hydraulic Control Valve and Hydraulic Pump | 163-254 | Control Valve Disassembly, Control Valve Assembly, Piston Pump, Gear Pump, Torque Adjustment |
| Manifold, Accumulator, Travel Motors, and Swivel Joint | 255-320 | Manifold Assembly, Accumulator, Single Speed Travel Motor, Two Speed Travel Motor, Swivel Joint |
| Swing Motor, Control Levers, and Hydraulic Components | 321-366 | Swing Motor, Joystick Controls, Hydraulic Filter Mount, Hydraulic Reservoir, Oil Cooler |
| Undercarriage | 367-396 | Blade, Track Undercarriage Components, Track Maintenance |
| Upperstructure & Swing | 397-484 | Upperstructure, Cab, Left Console, Engine Speed Control |
| Electrical System | 485-528 | Battery, Alternator, Starter, Lights |
| Engine | 529-604 | Engine Information, Cylinder Head, Crankshaft and Pistons, Camshaft and Timing Gears |
| Heating and Ventilation | 605-620 | Heater System, Regular Maintenance, Heater Unit, Heater Coil |
| Specifications | 621-646 | Excavator Specifications |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel filter storage limit | 3 months | p. 49 |
| Hydraulic pump plug torque | 30 - 34 N•m (22 - 25 ft-lb) | p. 60 |
| Nut torque | 1152 N•m (850 ft-lb) | p. 110 |
| Head torque | 373 N•m (275 ft-lb) | p. 110 |
| Track roller bolt torque | 190 - 210 N•m (140 - 155 ft-lb) | p. 380 |
| Drive sprocket bolt torque | 108 N•m (80 ft-lb) | p. 380 |
| Track clearance | 8,3 - 13,5 mm (0.33 - 0.53 in) | p. 374 |
| Rubber track sag | 8 - 13 mm (0.33 - 0.53 in) | p. 375 |
| Terminal clamp nut torque | 7 N•m (5 ft-lb) | p. 494 |
| Electrolyte level | 13 mm (0.50 in) | p. 493 |
| O-ring Face Seal Tightening Torque (1/4" Tubeline) | 18 N•m (13 ft-lb) | p. 635 |
| O-ring Face Seal Tightening Torque (3/8" Tubeline) | 30 N•m (22 ft-lb) | p. 635 |
