A cold planer that loses its milling drive mid-cut strands half a lane and a queue of trucks with nowhere to load. That is the failure this 730-page Bomag BM 1300/35 service manual PDF, OEM ID 008 401 12 EN, exists to solve. Fault code tables anchor a long troubleshooting section that traces each symptom from the display readout down to the component behind it. Electric circuit diagrams and hydraulic schematics map the travel pump, conveyor belt pump, fan circuit and milling clutch, while functional-condition charts show which switch states must be true before the drum will even engage. Warm the hydraulic oil to 40 °C before you run a pressure test, and check the conveyor belt motor against its 730 Nm nominal torque. Every hour this machine sits, the whole cut schedule slips. A live text layer and bookmarks take you straight to the right circuit, so the part you condemn is the part you order, once.
What's Inside This Bomag BM 1300/35 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 7-26 | Introduction, Concerning Your Safety (Handling Fuels and Lubricants, Park the Machine in Secured Condition) |
| Technical Data | 27-34 | Weights, Milling Drum, Travel Characteristics, Drive, Crawler Assembly, Electric System |
| Total Overview of Machine | 35-54 | Component Overview Electrics, Component Overview Hydraulics |
| Trouble Shooting | 55-218 | Overviews (Overview -: Travel System, Milling Drive, Height Adjustment, Steering, Conveyor Belt Functions, Swivelling the Slewable Chassis) |
| Electric Systems | 219-250 | Control Units, Display (0-Start Screen, 1-Work Screen, 2-Menu, Fault Code Display), Reserve Wiring |
| Engine | 251-290 | Lubrication Oil Circuit, Cooling Circuit, Fuel System, Exhaust Gas Cleaning (Exhaust Gas Recirculation, SCR), Engine Electrics (Control Unit Mtu, Sensors Mtu 6R 1000) |
| Hydraulic System | 291-342 | Component Description, Travel Pump, Conveyor Belt Pump, Fan Pump, Working Pump, Towing the Machine, Trouble Shooting Axial Piston Pumps |
| Assembly Groups | 343-408 | Drive Unit (Description), Milling Unit (Description), Milling Drum (Description, Repair), Conveyor Unit (Description, Undercarriage (Description |
| Electric Circuit Diagram | 411-495 | Structure Identifier Overview, Supply Voltage, Ignition Switch, Fuses Machine, Supply Esx Controller, Communication CAN/Seriell, Sensors, Bomag Telematics |
| Hydraulic Diagram 310 | 496-518 | Overview, Belt Drive, Control Block, Wasseranlage, Options, Heat Exchanger, Gearbox, Fahrantrieb |
| Working and Fan Pump | 519-546 | - |
| Travel Pump | 547-587 | Measuring Point, Excerpt From Hydraulic Diagram |
| Travel Motor | 588-620 | - |
| Fan Motor | 621-643 | - |
| Conveyor Belt Pump | 644-700 | Excerpt From Hydraulic Diagram, Measuring Point |
| Milling Clutch | 701-730 | Planox Clutch, Inner Disc, Ring Gear, Outer Disc, Clutch Hub, Cylinder, Piston |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic oil operating temperature for pressure tests | 40 °C | p. 25 |
| Max. torque (Engine) | 1400 Nm | p. 30 |
| Nominal torque (Conveyor belt motor) | 730 Nm | p. 32 |
| Fastening screw tensioning torque | 100 Nm | p. 359 |
| Low pressure valve tightening torque | 70 Nm | p. 568 |
| High-pressure valve tightening torque (NG 71–90) | 150 Nm | p. 569 |
| Tightening torque for fifth screw | 10.4 Nm | p. 685 |
| Tightening torque for M3 bolt (8.8 class) | 1.1 Nm | p. 686 |
| Max. operating weight | 26700 kg | p. 29 |
| Milling width | 1300 mm | p. 29 |
| Milling depth | 0 - 330 mm | p. 29 |
| Engine rated power ISO 3046 | 260 kW | p. 30 |
Bomag BM 1300/35 Common Problems This Manual Covers
Bomag BM 1300/35 milling drum drive cuts out intermittently under load mid-cut
Check the fault code display and match codes against the ESX error list. Test wiring and solenoids in the milling drive circuit before condemning hardware. If the Planox clutch slips under load, confirm it still holds the rated 5200 Nm static torque, page 33, before splitting it for new discs.
Manual Section: Trouble shooting - Milling drive p. 33Hydraulic oil overheats during long cuts, travel and milling response turn sluggish
Clean the hydraulic oil cooler fins and confirm the fan motor runs at full speed under load. Drain contaminated oil, replace the filters, and refill; the system takes 250 l. Bring oil up to 40 °C operating temperature, page 25, before taking any pressure readings on the axial piston pumps.
Manual Section: Trouble shooting - Axial piston pumps p. 25Drum chatters and leaves ridges, point-attack cutters spinning loose in worn holders
Inspect every holder on the drum and replace cutters that no longer rotate freely. Torque exchange holder fastening screws to 100 Nm, page 359, and renew any holder with a hammered seat. After drum work, tighten the milling drum nuts to 700 Nm, page 371, then run a shallow test cut.
Manual Section: Assembly Groups p. 359Conveyor belt slows or stalls under full load, millings pile at the drum
Check charge pressure at the conveyor belt pump using the measuring points covered from page 644, and compare readings against the hydraulic schematic. Verify belt tension and clear packed millings off the rollers. If the motor cannot pull its 730 Nm nominal torque rating, page 32, replace it before the next mat.
Manual Section: Conveyor Belt Pump p. 644Machine creeps or won't travel straight while the drum still cuts normally
Measure charge pressure on the closed-loop travel pump at the measuring points detailed from page 547, then trace the circuit on the hydraulic schematic. Inspect travel pump and motor valves; if a high-pressure valve has been opened, torque it back to 150 Nm for NG 71 to 90 units, page 569.
Manual Section: Travel Pump p. 547Frequently Asked Questions
What do the error codes on the BOMAG BM 1300/35 mean?
The error codes are identified by the ESX control unit and indicate specific faults in the machine's systems. For example, error code 1000003 indicates 'Voltage above normal range or short circuit to (+) potential' for the travel control system. A complete list of these codes, their operating means, and descriptions of the faults can be found in the 'Fault codes' section starting on page 116. p. 116
What are the replacement specifications for the hydraulic oil filter on a Bomag BM 1300/35?
When using mineral oil-based hydraulic oil, the hydraulic oil filter element must be replaced every 500 operating hours. If you switch to a synthetic ester-based biodegradable hydraulic oil, you must check the filter more frequently and perform regular oil analyses for water and mineral oil content. p. 21
What is the correct valve clearance for the MTU 6R 1000 engine on the Bomag BM 1300/35?
For the MTU 6R 1000 engine, the nominal valve clearance for the intake valve is 0.30 mm (+0.05/-0.05 mm) and for the exhaust valve is 0.60 mm (+0.05/-0.05 mm). These adjustments must only be performed when the engine is cold, at least 30 minutes after it has been shut down. p. 284
What is the tightening torque for the milling drum central nut on a Bomag BM 1300/35 cold planer?
When reassembling the milling drum, the central nut must be tightened to a torque of 700 Nm (516 ft·lbf). p. 371
What is the required coolant mixture for the engine on the Bomag BM 1300/35?
The coolant must contain 50 Vol.-% by weight of anti-corrosion/anti-freeze agent to provide frost protection down to -37 °C (-35 °F). Do not exceed a proportion of 55 Vol.-% as this will adversely affect heat discharge and anti-freeze properties. p. 20
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