When a BW 75 H stops shaking mid-pass, the fix usually lives somewhere in these 122 pages: this Bomag BW 75 H service manual PDF (OEM ID 008 915 16) is the factory repair book for the double vibratory roller, from safety regulations through full drum and travel drive repairs. Hydraulic diagram 820 601 13 and wiring diagram 820 031 19 map every line and wire in the machine, and a dedicated troubleshooting chapter works the vibration drive fault by fault. Repair chapters take you through the travel cable, drum bearings, exciter shaft, travel pump, and drum drive, each closing with the correct adjustment. Set exciter shaft end float between 0.8 and 1.6 mm, and heat the drive gears to 200 degrees C before pressing them onto the drum axles. Every hour spent hunting a spec is an hour the roller sits. Bookmarks in this text-searchable PDF put the section you need two taps away.
What's Inside This Bomag BW 75 H Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 5-24 | Introduction, Safety Regulations, General Repair Instructions |
| Technical Data | 25-28 | Weights, Dimensions, Travel Performance, Engine, Vibration System, Capacities |
| Maintenance | 29-36 | Fuels and Lubricants, Table of Fuels and Lubricants, Running-In Instructions, Maintenance Chart |
| Tests and Adjustments | 37-44 | Special Tools, Checking the Rotation Speeds, Travel Pump Pressure Test |
| Trouble Shooting | 45-48 | Trouble Shooting in Vibration Drive |
| Removing and Installing the Travel Cable | 49-56 | Travel Control Cable, Water Tank Removal, Steering Rod, Cable Adjustment |
| Removing and Installing the Travel Cable (C4) | 57-62 | Safety Control C4, Contact Button, Releasing Lever, Cable Installation |
| Removing and Installing the Drum | 63-76 | Drive Gear, Vibration Drive, Upper Structure, Drum Bearings |
| Repair Drum | 77-86 | Exciter Shaft, Vibration Bearing, Drive Flange, End Float Measurement |
| Travel Pump | 87-96 | Charge Pressure Relief Valve, Rotor, Swash Plate, Radial Seal |
| Drum Drive | 97-108 | Travel Motor, Valve Housing, Gear Set, Balance Plate |
| Circuit Diagrams | 109-122 | Hydraulic Diagram 820 601 13, Wiring Diagram 820 031 19 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Operating temperature of the hydraulic oil | 40 °C | p. 13 |
| Exciter shaft end float | 0.8 mm to 1.6 mm | p. 47 |
| Heating temperature for drive gears | 200 °C | p. 71 |
| Axial play | 0.8 mm - 1.6 mm | p. 78 |
| Battery | 12V/55Ah | p. 118 |
| Hauptsicherung (Fuse, main) | 20A | p. 118 |
| Meldeleuchte Ladekontrolle (Indicator light, charge control) | 0,22A | p. 118 |
| Operating weight (Cece) | 1015 kg | p. 26 |
| Working width | 750 mm | p. 26 |
| Rated power ISO 9249 | 6.2 kW | p. 26 |
| Nominal speed | 3100 rpm | p. 26 |
| Fuel tank capacity | 5.5 L | p. 27 |
Bomag BW 75 H Common Problems This Manual Covers
Bomag BW 75 H engine cranks strong but will not start, no fuel reaching the injector
Check the fuel tank first; it holds only 5.5 liters (page 27) and runs dry faster than crews expect. Replace the fuel filter, crack the injector line, and crank until fuel runs clean and bubble-free. If the starter drags, load-test the 12V/55Ah battery and check the 20A main fuse against the wiring diagram on page 118.
Manual Section: Circuit Diagrams p. 118Engine starts then dies after a few minutes of rolling, stalls again on restart
Drain and refill with clean fuel; sediment in the small 5.5 liter tank (page 27) plugs a filter in one shift. Replace the fuel filter, bleed the supply line until fuel flows without air, and check the tank vent. Follow the maintenance chart on page 35 for filter intervals so the machine finishes its passes instead of stalling mid-lift.
Manual Section: Maintenance p. 35Drum vibration weak at full throttle, exciter shaft speed reads too low
Start at the engine, not the drum: high idle must reach 3600 rpm (page 27) or the exciter shaft never comes up to frequency. Test the vibration drive charge circuit using the troubleshooting steps starting on page 46. If speeds check out, measure exciter shaft end float against the 0.8 mm to 1.6 mm spec on page 47 before condemning the drive.
Manual Section: Trouble Shooting p. 46Machine creeps or will not travel after hydraulic service, drive response feels spongy
Run the engine at low speed and cycle the travel lever gently in both directions to purge trapped air. Verify the hydraulic tank is full; capacity is 13 liters (page 27). Warm the oil to roughly 40 °C (page 13), then run the travel pump pressure test on page 44 and confirm high pressure limits at 250 bar.
Manual Section: Tests and Adjustments p. 44Grinding or rumbling noise from the drum during vibration, worse as hours climb
Remove the drum following the procedure starting on page 63, then split it per the repair section on page 77. Replace the vibration bearings and shaft seals, and set axial play to 0.8 mm to 1.6 mm (page 78). Heat the drive gears to 200 °C (page 71) before pressing them onto the drum axles during reassembly.
Manual Section: Repair Drum p. 77Frequently Asked Questions
How do I bleed the fuel system on a BOMAG BW 75 H?
The manual's guidance here is preventive: never let the machine run out of fuel, because the filter and the injection lines then have to be bled. If it has already run dry, bleed the injection lines before the engine will pick up and run again. p. 32
What is the procedure for checking the exciter shaft end float?
To check the end float, remove the gear cover and loosen the fastening screws for the hydraulic coupling to take off the vibration system toothed belt. The exciter shaft end float should be between 0.8 mm and 1.6 mm; if it is not within this range, the exciter shaft bearings must be repaired. p. 47
What is the nominal high idle speed for the engine?
The nominal high idle speed for the engine is 3160 rpm. This measurement should be taken with the throttle lever in the maximum speed position. p. 42
What is the capacity of the hydraulic oil tank?
The hydraulic oil tank has a capacity of approximately 13 liters (3.435 US gallons). p. 27
What is the correct valve clearance for the engine?
The valve clearance for both the intake and exhaust valves is 0.15 mm. p. 27
Is this Bomag BW 75 H manual a PDF I download?
All 122 pages arrive as one searchable PDF at checkout. Read it at the desk, then take the phone out to the machine.
Is this Bomag BW 75 H manual print-friendly?
Printing is allowed without restriction. Pull the pages you need for the job and bin them when they get greasy.
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