One document settles what the pressures on these single drum rollers should actually read: the Bomag BW 145 D-3, BW 145 DH-3, BW 145 PDH-3 Service Training PDF, factory number 008 099 55, 117 pages covering all three machines. Hydraulic schematics trace the closed-loop travel circuit from travel pump to Poclain drum drive motor, and that travel chapter alone takes the biggest share of the book. Wiring diagrams at the back split the electrics into power supply, starter and monitoring, and brake circuits, so you can chase a dead vibration solenoid wire by wire. Set charge pressure to 25±1 bar, look for 220±5 bar at vibration start, and gap the Deutz valves at 0.3 mm intake, 0.5 mm exhaust. Every hour the roller sits, the lift behind it waits too. Bookmarks follow the factory chapter letters, so the pressure chart is two clicks from the cover; download it and put your gauge to work.
What's Inside This Bomag BW 145 D-3, BW 145 DH-3, BW 145 PDH-3 Manual
| System | Pages | Key Topics |
|---|---|---|
| Documentation | 5 | Index of Related Bomag Publications (Each Sold Separately) |
| General | 6-7 | Single Drum Rollers, Deutz Diesel Engine, Hydrostatic Travel Systems, Articulated Joint, Multi Disc Brakes, Exciter Shaft |
| Technical Data | 8-13 | Deutz Diesel Engine, Travel Pump, Travel Motor, Drum Drive, Vibration Pump, Steering Valve |
| Maintenance | 14-17 | Maintenance Table |
| Deutz Diesel Engine | 18-37 | Control Side, Exhaust Side, Lubrication Oil Circuit |
| Travel System | 38-70 | Bw 145 D-3, Bw 145 Dh/Pdh-3, Travel Pump, Control (Charge Pressure Relief Valves, High Pressure Relief Valves, Pressure Override), Drum Drive Motor |
| Vibration | 71-86 | Vibration Pump, Vibration Control Valve, Vibration Motor |
| Steering | 87-94 | Steering Pump, Steering Valve, Articulated Joint, Trouble Shooting |
| Electrical System | 95-117 | Electric Circuit Diagrams, Power Supply, Ignition and Starter Circuit, Monitoring, Brakes |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Charge pump pressure | 25±1 bar | p. 61 |
| Engine Power | 51.5 kW | p. 8 |
| Intake Valve Clearance | 0.3 mm | p. 8 |
| Outlet Valve Clearance | 0.5 mm | p. 8 |
| Engine Oil Capacity | 10.5 L | p. 9 |
| Hydraulic Oil Capacity | 60 L | p. 9 |
| Rear Axle Oil Capacity | 5.5 L | p. 9 |
| Injection Pump Tightening Torque | 21 Nm | p. 30 |
| Toothed Belt Idler Pulley Tightening Torque | 45 Nm | p. 34 |
| High Pressure Relief Valve Setting | 380 bar | p. 53 |
| Vibration System Pressure Relief Valve Setting | 220 bar | p. 75 |
| BW 145 D-3 | ||
| Max. steering pressure, BW 145 D-3 | 165 ±10 bar | p. 9 |
| BW 145 DH-3, BW 145 PDH-3 | ||
| Max. steering pressure, BW 145 DH-3 / PDH-3 | 200 ±10 bar | p. 11 |
Bomag BW 145 D-3, BW 145 DH-3, BW 145 PDH-3 Common Problems This Manual Covers
Bomag BW 145 D-3 engine idles fine but will not rev up under throttle or load
Check the throttle and governor linkage at the injection pump for binding; work the pump lever by hand with the engine running to confirm the governor responds. If a plug-in injection pump has to come out, follow the installation and locking procedure, torquing the pump to 21 Nm per page 30 before resetting the linkage.
Manual Section: Deutz Diesel Engine p. 30Machine loses travel power or drives in one direction only after hydrostatic pump repair
Test charge pressure before touching any pump adjustment: it must hold 25±1 bar per the test values on page 61. Then stall the machine against the brakes and confirm the high pressure relief valves open at 380 bar, shown on page 53. Work the travel troubleshooting chart on page 70 to isolate charge circuit, servo control, or drum drive motor faults.
Manual Section: Travel System p. 70No vibration in either amplitude, or exciter starts in low amplitude only
Verify vibration start-up pressure with a gauge in the test port: 220±5 bar at vibration start, per the technical data on page 9. If readings run high or low, check the vibration system relief valve against its 220 bar setting on page 75, then move to the vibration control valve and exciter shaft drive before pulling the vibration pump.
Manual Section: Vibration p. 75Steering feels jerky and the articulated joint will not reach the end stops
Measure steering pressure at full lock: 165±10 bar on the BW 145 D-3 (page 9), 200±10 bar on the DH-3 and PDH-3 (pages 11 and 13). Low readings point at the steering pump or a worn steering valve, not the joint. Inspect the articulated joint bearings for play and damage, then follow the steering troubleshooting procedures starting on page 87 to separate valve faults from pump faults.
Manual Section: Steering p. 87Hydraulic oil runs hot during long compaction passes and travel speed drops off
Check hydraulic oil level and condition first; the system holds 60 L, listed on page 9. Clean the cooler fins and verify charge pressure stays at 25±1 bar, since a weak charge pump keeps recirculating hot oil. The travel troubleshooting chart on page 70 covers oil overheating and low top speed together, so run both checks in one pass.
Manual Section: Travel System p. 70Frequently Asked Questions
What are the torque specifications for the injection pump installation?
When installing the injection pump, it must be pressed centrically down to the stop. The screws should be tightened to a torque of 21 Nm. p. 30
What is the correct valve clearance for the Deutz BF4L 1011 F engine?
On a cold engine (oil temperature <80°C), the intake valve clearance should be 0.3 mm and the exhaust valve clearance should be 0.5 mm. If the cylinder head gasket has just been replaced, these values are 0.4 mm and 0.6 mm respectively. p. 23
What is the engine oil capacity for the BW 145 D-3?
The engine oil capacity for the BW 145 D-3 is 10.5 liters, using SAE 15W-40, API SJ/CF oil. p. 9
How often should the toothed belt for the camshaft control be replaced?
The toothed belt for the camshaft control is a service part that must be replaced every 3000 operating hours, and it must always be replaced together with the idler pulley. p. 34
What is the specified tightening torque for the plug after installing the injection pump?
After installing the plug with a new copper ring, it should be tightened to a torque of 18 Nm. p. 32
How will I receive this Bomag BW 145 D-3 Service Manual?
A 117-page Service Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Can I print specific sections of this Bomag BW 145 D-3 Service Manual?
Yes. No DRM, nothing blocks printing, so run off the pages you need on whatever printer you have.
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