Covering the BF 800 C road finisher, this 954-page Bomag service manual (OEM 008 917 73) provides the factory data required to maintain and repair your paving equipment. The documentation lays out extensive E-Plan wiring diagrams and hydraulic schematics for the travel, scraper belt, and auger drives. Diagnostic sections break down EMR3 fault codes, CAN-bus monitoring, and exact procedures for bringing the straight crossfalls to zero and aligning the mobile screed sections. Factory specifications are printed throughout, dictating critical values like the cylinder head cover torque at 22 Nm and the strict two-year replacement interval for hydraulic fluid and filters. Guessing at a screed setting or travel pump pressure usually means tearing down a ruined component while the mat cools behind you. Download this bookmarked, text-searchable Bomag BF 800 C service manual PDF to fix it right and put the finisher back in the pass.
What's Inside This Bomag BF 800 C Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 9-30 | Introduction, Safety Regulations, Tightening Torques |
| Technical Data | 31-38 | Weights, Screed, Travel Characteristics, Hydraulic Pumps, Hydraulic Motors, Gearbox |
| Maintenance | 39-48 | Fuels and Lubricants, Table of Fuels and Lubricants, Running-In Instructions, Maintenance Table |
| E-Plan Wiring Diagrams | 49-66 | Understanding E-Plan Circuit Diagrams, Circuit Symbols in E-Plan, Identification of Switch Blocks in the Wiring Diagram, Designation of Components in the Wiring Diagram |
| Engine | 67-114 | Diesel Engine, Engine Description Tcd 2012, Lubrication Oil Circuit Tcd 2012 / 2013, Coolant Circuit Tcd 2012 / 2013, Fuel System Tcd 2012 / 2013 |
| Engine Electrics | 115-238 | EMR3 System Components, Deutz Emr 3 - Engine Connections, Pin Assignment of Engine Control EDC16 / EMR3, Rotary Speed Sensor for Camshaft, Crankshaft Speed Sensor |
| Electrics | 239-302 | Service the Battery, Check the Main Battery Switch, Starting the Engine with Jump Leads, Starting with Jump Wires, Fuses, Fuse Assignment, Component Overview - Electrics |
| Error Codes -- General Information | 303-306 | Error Codes BF800 |
| Input Codes | 307-354 | Input Codes -- Display: Function and Operation, Input Codes -- Automatic Calibration of Currents in the Travel System |
| Replacement of Components | 355-356 | How to Proceed When Replacing Components? |
| Material Hopper, Description | 357-364 | Material Hopper and Transport |
| Vibrating Screed, Description | 365-370 | Screed |
| Basic Settings on the Screed | 371-376 | Notes on the Screed Adjustment, Bringing the Straight Crossfalls to Zero Position, Aligning Basic Screed and Mobile Sections |
| Assembling the Screed Extensions | 377-392 | Side Plate Bracket, Attachment Part, Auger Extension, Tunnel Plate, Dosing Plate, Transverse Struts |
| Electric Screed Heating, Repair | 393-402 | Electric Screed Heating, Electric Screed Heating - Commissioning, Faults in the Electric Heating |
| Travel Drive, Description | 403-408 | Travel System |
| Hydraulics | 409-444 | Hydraulic Circuit, Component Overview -- Hydraulics, Travel Pump, View of the Machine, Pumps for: Scraper Belt, Augers, Vibration & Tampers, Fan Pump |
| Hydraulics - Travel Circuit | 445-450 | Driving, Brake Circuit |
| Hydraulics - Material Transport | 451-456 | Scraper Belts, Augers, Description Tamping, Description Vibration |
| Hydraulics - Service | 457-462 | Fan Circuit, Service, Load Control System |
| Tests and Adjustments | 463-508 | Special Tools, Checking and Adjusting the Vibration, Checking/Adjusting Tamping, Checking/Adjusting the Scraper Belts, Checking/Adjusting the Augers |
| Suppliers Documentation | 509-760 | Travel Pump, Travel Motor, Service Pump and Fan Pump, Pump Scraper Chains, Augers, Tamper, Vibration, Travel Gear |
| Circuit Diagrams | 761-954 | Hydraulic Diagram, Electric Circuit Diagrams |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Tightening torque for M4 screw (8.8) | 3 Nm | p. 27 |
| Tightening torque for M4 screw (10.9) | 5 Nm | p. 27 |
| Change hydraulic oil and hydraulic oil filter | at least every 2 years | p. 47 |
| Tightening torque for cylinder head cover | 22 Nm | p. 96 |
| Maximum air pressure for cleaning | 5 bar | p. 93 |
| Attachment part alignment | +1 mm higher than the mobile section | p. 383 |
| Engine Oil Capacity | 20L | p. 33 |
| Coolant Capacity | 20L | p. 33 |
| Hydraulic Oil Capacity | 179L | p. 33 |
| Diesel Fuel Capacity | 315L | p. 33 |
| Engine Oil Change Interval | 500 hours | p. 41 |
| Valve Clearance Intake | 75-85 degrees | p. 34 |
Bomag BF 800 C Common Problems This Manual Covers
Bomag BF 800 C screed extension sagging during paving passes leaving an uneven longitudinal joint
Inspect the side plate bracket and extension wear parts. Align the attachment part so it sits exactly +1 mm higher than the mobile section as shown on page 383. Torque mounting bolts and run a test pass to verify mat height.
Manual Section: Assembling the Screed Extensions p. 383Travel drive slows down mid-pass and standby hydraulic pressure drops below normal operating range
Check the standby pressure at the test port to verify it reads 25 bar. If pressure is low, replace the main hydraulic filter element. Drain the 179L hydraulic tank and change the fluid if it has been over 2 years, per page 47.
Manual Section: Maintenance p. 47Engine coolant temperature spikes while pushing trucks and dashboard displays a restricted airflow warning
Remove the outer air filter housing and inspect the primary element for heavy dust buildup. Clean the outer air filter using compressed air regulated to a maximum of 5 bar as detailed on page 93. Replace the inner safety filter if dirt bypassed.
Manual Section: Engine p. 93Material feed starves the screed because the augers rotate too slowly or stall completely under load
Test the auger drive hydraulic circuit and verify the auger shaft speed maintains 100-108 rpm during operation, per the technical data on page 36. Trace the pump feed lines using the hydraulic circuit diagrams on pages 761-954. Adjust the load control system if the speed drops under heavy head of material.
Manual Section: Technical Data p. 36Frequently Asked Questions
How do I clear stored faults on a BOMAG BF 800 C?
To delete the error log, first ensure the parking brake is activated. Switch on the ignition, enter code 0710, switch off the ignition, and then switch it back on. All logged error codes will be deleted. p. 353
What are the replacement specifications for the engine oil filter on the Bomag BF 800 C?
The engine oil filter cartridge should be changed every 500 operating hours, or at least once per year. When replacing, clean the sealing face on the filter carrier, slightly oil the rubber seal on the new cartridge, and tighten the filter element for another half turn after the seal contacts. p. 85
What is the valve clearance adjustment angle for the TCD 2012 engine in the Bomag BF 800 C?
The valve clearance adjustment angle for the intake valve is 75° ±15° and for the exhaust valve is 120° ±15°. This adjustment should be performed by trained personnel or after-sales service when the engine oil temperature is below 80°C (176°F). p. 95
What is the tightening torque for the M12 bolts on the travel gear of the Bomag BF 800 C?
The tightening torque for M12 bolts (strength class 8.8) on the travel gear is 87 Nm. For strength class 10.9, it is 130 Nm, and for strength class 12.9, it is 150 Nm. p. 701
What is the nominal scraper belt speed on the Bomag BF 800 C?
The nominal scraper belt speed, measured on the shaft, should be between 61 and 64 rpm. p. 344
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