Screed operation, DPF regeneration, screed heating, and the full service schedule: this Bomag BF 900 C operator manual PDF (OEM 008 081 81) covers the paver across 194 pages, from pre-start checks to final shut-down. Fault code displays for the engine and the screed heating turn a dead burner into a specific diagnosis, and the fuse assignment chart tells you which circuit to check before you pull a console apart. Maintenance intervals run from the 10-hour walkaround to the 2000-hour valve clearance adjustment, each with its own procedure. Fill against the listed 315-liter diesel capacity, set the levelling plate to guide bar gap at 1 mm, and run SAE 15W-40 in the 16.5-liter engine sump. Guessing at a heating fault costs a shift, sometimes an element. Bookmarked and text-searchable, this PDF puts the right code in front of you the first time; download it and keep the machine in the pass.
What's Inside This Bomag BF 900 C Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 7-10 | Foreword, Machine Type Plate and Engine Type Plate |
| Technical Data | 11-18 | Weights, Screed |
| Safety Regulations | 19-36 | General, Remaining Dangers, Stickers and Decals |
| Display and Control Elements | 37-66 | Vie of Main Control Panel, Description (Quick Adjustment Lever for Screed Angle of Attack), View of External Operator Stations, Control Elements on External Operator Stations |
| Operation | 67-110 | General, Tests Before Taking Into Operation, Adjusting the Driver's Seat |
| Maintenance | 111-178 | Fuels and Lubricants (Engine Oil, Fuel, Coolant, Hydraulic Oil, Gear Oil Sae 80W-140, Lubrication Grease, High-Temperature Lubrication Grease), Table of Fuels and Lubricants |
| Troubleshooting | 179-190 | Preliminary Remarks, Starting the Engine with Jump Leads, Screed Heating Fault Code Display, Fuse Assignment, Fault Code Display, Engine Faults |
| Disposal | 191-194 | Final Shut-Down of Machine |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel (diesel) capacity | 315 l | p. 14 |
| Mat height threshold for extra thick mat settings | 32 cm (12.6 in) | p. 95 |
| Engine oil capacity | 16.5 l | p. 121 |
| Levelling plate to guide bar gap | 1 mm (0.04 in) | p. 149 |
| Tightening torque for counter nut (valve clearance adjustment) | 20 Nm (15 ft·lbf) | p. 162 |
| Tightening torque for cylinder head cover | 9 Nm (7 ft·lbf) | p. 162 |
| Operating weight (Cece) (BF 900 C S-500) | 21150 kg | p. 12 |
| Weight of basic screed (BF 900 C S-500) | 3900 kg | p. 12 |
| Rated power ISO 3046 | 160 kW | p. 12 |
| Fuel tank capacity | 315 l | p. 14 |
| Operating weight (Cece) (BF 900 C S-600) | 21300 kg | p. 15 |
| Weight of basic screed (BF 900 C S-600) | 4200 kg | p. 15 |
Bomag BF 900 C Common Problems This Manual Covers
Bomag BF 900 C engine cranks slowly and won't start on cold mornings at the plant
Check battery terminals for corrosion and tight clamps before cranking again. Verify fuel level; the 315 l tank can draw air if run low on a grade. Confirm the sump is filled with SAE 15W-40 engine oil for cold weather, then work through the engine fault tables in the troubleshooting section starting on page 180.
Manual Section: Troubleshooting p. 180Screed heating fault code on the display and mat temperature dropping halfway through the pull
Write down the fault code from the display before switching anything off, then match it against the tables in the troubleshooting section beginning on page 179. Check the generator ribbed V-belt while the screed cools: replace it once wear reaches the 3 mm limit given on page 151, and inspect heating connectors for loose plugs.
Manual Section: Troubleshooting p. 179Paver creeps forward slowly and screed lift feels sluggish during the first passes of the morning
Check hydraulic oil level on the sight glass before the first pull; the system holds 180 l (page 121) and a low tank aerates the oil in cold weather. Let the machine warm at idle until travel responds normally, then follow the maintenance schedule for hydraulic oil and filter change intervals.
Manual Section: Maintenance p. 121Mat surface tearing and uneven texture behind the screed on thick lifts
Verify the screed is switched to the extra thick mat setting when laying above 32 cm, per the operating instructions on page 95. Measure tamper bar protrusion against the 0.35 mm nominal value on page 150, and confirm the levelling plate to guide bar gap holds 1 mm as listed on page 149.
Manual Section: Operation p. 95Track chains slap and machine steers unevenly when tramming off the trailer
Measure wear across 5 track links: a new chain reads 622.4 mm and replacement is due at 632.3 mm, both values listed on page 150. Check track tension at the interval given in the maintenance schedule, and clean packed asphalt out of the drive sprockets before the next pass.
Manual Section: Maintenance p. 150Frequently Asked Questions
What is the procedure for adjusting the valve clearance on the Bomag BF 900 C engine?
The intake valve clearance should be set to 75° ±15° and the exhaust valve to 120° ±15°. This work must be performed by trained personnel using a rotation angle disc after the engine has cooled down for at least 30 minutes. p. 161
What is the tightening torque for the valve adjustment screw counter nut on the Bomag BF 900 C?
When adjusting the valve clearance, the counter nut for the valve adjustment screw must be tightened to a torque of 20 Nm (15 ft·lbf). p. 162
What is the required tension for the toothed belt used in the screed heating generator?
The tension for a new toothed belt should be 79-82 Hz, while a toothed belt already in use should be tensioned to 73-76 Hz. p. 143
What is the fuel tank capacity of the BF 900 C?
The fuel tank capacity for the BF 900 C is 315 liters (83 gallons US). p. 14
How often should the engine oil and oil filter be changed?
The engine oil and oil filter cartridge should be changed every 500 operating hours, or at the latest after one year. p. 146
How is this Bomag BF 900 C Operator Manual delivered?
You get a 194-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Am I able to print pages from this Bomag BF 900 C manual?
Yes. The PDF is DRM-free, so printing works from any reader and any printer.
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