When a DT15 loses drive on a slope, or the skip won't tip with a full load of concrete waiting, the fault is usually hydraulic and the fix starts with a diagram. That diagram is in here: this Wacker Neuson DT15 service manual PDF is the 156-page factory workshop book for both track dumpers, filed under OEM ID 1000279460. Hydraulics diagrams map the control valve circuits for every skip variant (swivel, 3-way, earth-movement, high-tip, even the concrete mixer), and the electrical chapter traces the engine and instrument panel wiring harnesses down to a full table of conductors. Set rubber track sag to 15 mm, check rated pressure at 275 ± 5 bar, and refill the sump with its 3.70 liters after an oil change. You know the stall: machine on the trailer, one pressure spec missing. With bookmarked, text-searchable pages on your laptop, you find the number and the dumper runs again.
What's Inside This Wacker Neuson DT15 Manual
| System | Pages | Key Topics |
|---|
| Operation | 11-24 | Information on This Service Manual, Identification of Warnings and Dangers, Designated Use and Exemption From Liability |
| Chassis | 25 | Diesel Engine, Diesel Engine EPA Tier 4 (Option) |
| Hydraulic System | 26-40 | Travel Gear, Operating Hydraulics, Swivel and 3-Way Skip, Noise and Vibration Levels, Dimensions, General Tightening Torques |
| Overview of Control Stand | 41-43 | Control Stand Overview (Swivel, 3-Sided and Earth-Moving Skip), Control Stand Overview (High-Tip Skip), Control Stand Overview (Concrete Mixer) |
| Instrument Panel Overview | 44-49 | Preheating Start Switch, Throttle Lever, Putting Into Operation, Start-Up and Parking Checklists |
| Maintenance Plan | 50-92 | Fuel System, Engine Lubrication System, Engine and Hydraulics Cooling System, Air Filter, Hydraulic System, Tracks, Traveling Drive, Electrical System |
| Engine | 93-102 | Engine Overview, Checking and Adjusting Valve Clearance, Engine Trouble |
| Traveling Drive | 103-112 | Travelling Drive Pump, Legend Traveling Drive Pump, Hydraulic Motor |
| Hydraulic System | 113-136 | Gear Pump for Work Operation, Hydraulic Control Valve, Test Instructions |
| Electrical System | 137-156 | Measuring Equipment Measuring Methods, Fuses, Table of Conductors |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Rubber track sag | 15 mm | p. 74 |
| Rated pressure | 275 ± 5 bar | p. 107 |
| Engine Power | 15 kW at 3000 rpm | p. 25 |
| Engine Power (EPA Tier 4) | 17.7 kW at 3200 rpm | p. 26 |
| Oil sump capacity | 3.70 liters | p. 25 |
| Hydraulic reservoir capacity | 25 Liters | p. 26 |
| Battery | 12 V/60 Ah | p. 25 |
| Valve clearance | 0.165 ± 0.02 mm | p. 25 |
| Operating pressure for operating hydraulics | 170 bar | p. 26 |
| Operating pressure for drive hydraulics | 275 bar | p. 26 |
| Max. engine speed without load | 3000 ± 50 rpm | p. 25 |
| Max. engine speed without load (EPA Tier 4) | 3200 ± 50 rpm | p. 26 |
