Vibration, drive, steering, and the SmartControl SC-2 infrared control system: this 224-page Wacker Neuson RT 56 SC-2, RT 82 SC-2, RTx repair manual PDF (OEM 5200010058) walks each one end to end on the trench roller, from fault symptom through teardown and reassembly. Troubleshooting sequences trace a dead exciter or a roller that won't crank back through solenoids, decoder module, and receiving eyes, with meter checks at every branch. Electrical and hydraulic schematics map the full machine, and the disassembly chapters cover drum supports, exciters, drive hubs, and a full transmitter module rebuild with joystick calibration. Check a drive solenoid coil against the 4.3 to 5.3 ohm spec before you swap it, and torque drive hub socket head cap screws to 85 Nm (63 ft.lbs.). Guess wrong on a decoder and you buy it twice. Purchase this bookmarked, text-searchable PDF once and it stays yours for as long as you run these rollers.
What's Inside This Wacker Neuson RT 56 SC-2, RT 82 SC-2, RTx Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Information | 11-19 | Signal Words Used in This Manual, Machine Description and Intended Use, Safety Guidelines for Operating the Machine, Service Safety, Safety Guidelines for Lifting the Machine |
| Operation | 20-53 | Control / Component Locations, Control / Component Descriptions, SmartControl Sc-2 Transmitter |
| Troubleshooting Engine Starting (No Crank, No Start) | 54-76 | Troubleshooting Sequence, Checking the Machine Battery and the Transmitter Battery, Checking the Key Switch Fuse, Checking the Key Switch, Checking Power in and Out of the Ecm |
| Troubleshooting Engine Starting (Crank, No Start) | 77-83 | Troubleshooting Sequence, Checking the Fuel Solenoid Circuit, Checking the 50A Fuse, Checking the Glow Plug Relay, Checking a Glow Plug |
| Hydraulic System Overview | 84-85 | Pumps, Control Manifold, Vibration System, Steering System, Hydraulic Oil Cooler |
| Troubleshooting the Vibration System | 86-103 | How the Vibration System Functions, Troubleshooting Sequence, Checking the Function of the Transmitter Module, Checking the Function of the Decoder and the Vibration Solenoids |
| Troubleshooting the Drive System | 104-124 | How the Drive System Functions, Troubleshooting Sequence, Checking the Function of the Transmitter Module, Checking Power to the Brake Solenoid |
| Troubleshooting the Steering System | 125-136 | How the Steering System Functions, Troubleshooting Sequence, Checking the Function of the Transmitter Module, Checking Power to the Steering Solenoids |
| Disassembly and Reassembly | 137-200 | Tools Required for Disassembly/Assembly Procedures, Information Regarding Replacement Parts, Information Regarding Threadlocking Compounds, Disassembling the Articulated Joint |
| Rebuilding the Transmitter Module | 201-208 | Disassembling the Transmitter Module, Reassembling the Transmitter Module, Testing the Pushbutton Circuit Board, Calibrating the Joysticks |
| Technical Data | 209-213 | Engine, Roller, Lubrication, Sound and Vibration Specifications, Dimensions, Radiation Compliance |
| Schematics | 214-224 | Electrical Schematic - Sheet 1, Electrical Schematic - Sheet 2, Components, Hydraulic Schematic, Hydraulic Schematic Components |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Transmitter battery capacity | 2000 mAh | p. 42 |
| Full-charge operating time | 16 hours | p. 42 |
| Resistance of the coil (REV) | 4.3 – 5.3 ohms | p. 115 |
| Resistance of the coil (FWD) | 4.3 – 5.3 ohms | p. 115 |
| Socket head cap screw (for drive motor/hub assembly) | 85Nm/63ft.lbs | p. 149 |
| Nut (for drum hub) | 825Nm/609ft.lbs | p. 148 |
| Hexagonal head cap screw (for drive hub assembly) | 25Nm/18ft.lbs | p. 148 |
| Drive motor mounting screws torque | 85 Nm (62 ft.lbs.) | p. 157 |
| Engine Rated Power | 15.5 kW (20.8 hp) @ 2600 rpm | p. 209 |
| Engine Speed - Full Load | 2600 rpm | p. 209 |
| Engine Speed - Idle | 1300 rpm | p. 209 |
| Valve Clearance (Cold) - Intake | 0.15 mm (0.006 in.) | p. 209 |
Wacker Neuson RT 56 SC-2, RT 82 SC-2, RTx Common Problems This Manual Covers
Wacker Neuson RT 56 SC-2 trench roller won't travel, or drives forward only, drum stops mid-pass
Check the transmitter joystick function first, then ohm out the forward and reverse travel solenoid coils; both should read 4.3 to 5.3 ohms. Work through the drive system troubleshooting sequence starting on page 104, and inspect the harness connectors at the decoder for corrosion before you condemn the drive motor.
Manual Section: Troubleshooting the Drive System p. 104Engine cranks strong but won't start, or fires briefly then dies within seconds
Drain any water or stale diesel and refill the 18.9 L (6.3 gal) tank with fresh fuel. Check the fuel solenoid circuit and the 50A fuse following the sequence on page 77, then test the glow plug relay; this engine needs working glow plugs on cold mornings.
Manual Section: Troubleshooting Engine Starting (Crank, No Start) p. 77Amber light stays solid and machine ignores the transmitter, no travel, no vibration
Charge or swap the transmitter battery first; a dead pack is the usual culprit, and a full charge takes 2 hours for 16 hours of run time per the specs on page 42. Clean both receiving eyes, keep a clear line of sight, and confirm the channel setting matches the machine.
Manual Section: Operation p. 42Drums roll and steer fine but exciter won't vibrate in high or low range
Confirm the machine is not in high-speed travel mode; vibration locks out there. Check the vibration solenoids and decoder per the sequence starting on page 86, and verify engine speed reaches 2600 rpm at full load. If you pull the high speed valve, torque it back to 41-47 Nm (30-35 ft.lbs.).
Manual Section: Troubleshooting the Vibration System p. 86Engine shuts down hard with solid red light after running hot or tipping over
Check the engine oil level first; the crankcase holds 2.5 L (2.5 qt), spec on page 210. Verify coolant in the 4.75 L (1.25 gal) radiator and clean out the cooling fins. If the machine tipped, the ECM logs the event and the tip-over lamp needs a diagnostic reset with the service tool.
Manual Section: Technical Data p. 210Frequently Asked Questions
How do I reset the ECM diagnostic data and the tip-over light?
To reset the ECM diagnostic data and turn off the tip-over light, first connect the diagnostic tool and enter the ECM diagnostic mode. While in diagnostic mode, press and hold both buttons on the diagnostic tool for approximately 5 seconds. The ECM LED displays will change to nine dashes once the reset is complete. p. 53
What are the torque specifications for installing the drum extensions?
When installing the narrow scraper after removing drum extensions, torque the M16 x 25 screws to 210 Nm (155 ft.lbs.) and the narrow scraper screws to 86 Nm (63 ft.lbs.). p. 143
What is the engine oil capacity for the RT/RTx trench roller?
The engine crankcase capacity for the RT/RTx trench roller is 2.5 liters (2.5 quarts) of SAE 15W40 Class CF rated oil. p. 210
What is the acceptable operating engine RPM range?
The acceptable operating engine RPM range for the RT/RTx trench roller is 2,600 rpm ±50 rpm. p. 103
What is the torque specification for the articulated joint bearing bracket screws?
When reassembling the articulated joint, the four screws securing the bearing bracket to the frame must be torqued to 120 Nm (88 ft.lbs.). p. 141
What exactly do I receive with this Wacker Neuson RT 56 SC-2 Repair Manual?
This is a 224-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Am I free to print this Wacker Neuson RT 56 SC-2 Repair Manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Reviews
There are no reviews yet.