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 |
Wacker Neuson DT15 Common Problems This Manual Covers
Wacker Neuson DT15 rubber track loose, comes off sprocket or derails when turning on slopes
Check track sag with the machine lifted so the track hangs free; the DT15 spec on page 74 is 15 mm at the center span. Add grease through the track adjuster to tighten, bleed grease off to loosen. Inspect sprocket teeth and idler flanges for hooked wear before refitting a thrown track.
Manual Section: Tracks maintenance p. 74Machine will not move or loses travel power under load on grades
Test travel pressure using the traveling drive test instructions starting on page 107; rated pressure is 275 ± 5 bar. If the reading comes up low, check hydraulic oil level first (the reservoir holds 25 liters), then work through the boost circuit before condemning a travel motor or final drive.
Manual Section: Traveling Drive p. 107Engine cranks slowly or will not start in cold weather after machine sits overnight
Test the battery before touching anything else; the machine carries a 12 V/60 Ah battery, and a weak cell drags cranking speed hard in the cold. Clean and tighten the ground strap, then run the starter current measurement in the electrical section beginning on page 137. Bleed the fuel system if it cranks strong but will not fire.
Manual Section: Electrical System p. 137Skip lifts slowly or dump hydraulics feel weak once oil warms up
Check operating pressure for the work hydraulics against the 170 bar spec, following the test instructions in the hydraulic system section starting on page 113. Verify oil level before testing; the reservoir holds 25 liters. If pressure sags only when warm, replace the filter cartridges and inspect the gear pump for wear.
Manual Section: Hydraulic System p. 113Machine pulls to one side or travel feels jerky on straight ground
Measure track sag on both sides and equalize tension first; unequal sag makes the machine crab and chews up sprockets. Then run the straight-ahead travel test in the traveling drive section starting on page 107 and verify both sides build 275 ± 5 bar. Inspect rollers and idlers for flat spots and seized bearings.
Manual Section: Traveling Drive p. 107Frequently Asked Questions
What is the track tension adjustment procedure for a Wacker Neuson DT15?
To increase track tension, park the dumper on firm, level ground, raise it with suitable means, and ensure it is supported. Screw in setting screw A with a suitable tool until ram B is extended and the track is tensioned. To decrease tension, unscrew adjusting screw D until ram E is retracted and the track is loosened. p. 74
What is the valve clearance specification for the DT15 engine?
The valve clearance for the DT15 engine is 0.165 ± 0.02 mm. This should be checked and adjusted on a cold engine. p. 94
What is the torque specification for the cylinder-head cover on the Wacker Neuson DT15?
The specific torque for installing the cylinder-head cover is 6.86 to 11.3 Nm. p. 94
What is the maximum engine speed for the DT15 engine?
The maximum engine speed without load for the standard D902-E engine is 3000 ± 50 rpm. For the EPA Tier 4 D902-EF03 engine, it is 3200 ± 50 rpm. p. 95
What is the fan belt slack specification for the Wacker Neuson DT15?
The slack of the fan belt should be 8 ± 1 mm when a load of 98 N (10 kgf) is applied to the belt between the drive shaft and the alternator. p. 96
How is this Wacker Neuson DT15 Service Manual delivered?
Instant PDF download. You get the full 156-page searchable Service Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Can I print this Wacker Neuson DT15 manual?
Print away. There is no DRM and no page limit. Many buyers print one chapter at a time and leave the rest on a tablet.
Reviews
There are no reviews yet.