Bomag wrote this repair manual, publication 0852636, for the BW124D smooth drum, the BW124PD padfoot and the BW124PDB with the leveling blade, serial number prefix A219, and the PDF runs 262 pages. The book is built system by system. Transmission is the biggest chapter at pages 127 to 178, with travel pump repairs and the procedure for flushing the circuit after a failure, then steering on 183 to 204, vibration on 205 to 226 and the leveling blade on 237 to 254. The Deutz F3L1011 gets its own removal and installation chapter, and specifications start on page 13. Nominal values are printed where you need them: 180 bar starting and 60 bar operating pressure on the vibration pump, 200 bar at the vibration valve on page 222, steering relief at 1,850 psi. Guess those and you condemn a pump that was fine. Forty four bookmarks and a live text layer put the right page one tap away.
What's Inside This Bomag BW124D, BW124PD, BW124PDB Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 7-12 | Operating Instructions, Maintenance Procedures, Repair Procedures, Name Plate / Serial Number Plate, Serial Number |
| Specifications | 13-36 | Frame and Hitch Specifications, Engine Specifications, Electrical Specifications, Transmission System Specifications, Brake System Specifications |
| Operation | 37-58 | Operating Controls and Indicators, Operating Precautions |
| Maintenance | 59-90 | Maintenance Schedule, Engine Maintenance, Hydraulic System Maintenance |
| Frame, Hitch and Falling Object/Roll Over Protection Structure | 91-100 | Description of Frames and Hitch, Removal of Hitch Assembly |
| Engine | 101-106 | Removal of Engine Assembly, Installation of Engine Assembly |
| Electrical System | 107-126 | Electrical System Major Components, Trouble Analysis for Electrical System |
| Transmission System | 127-178 | Travel Pump Repairs, Flushing Transmission System, Trouble Analysis for Transmission System |
| Brake System | 179-182 | Dynamic Braking, Basic Operation, Secondary/Parking Brake System, Hydraulic System Control Valve Assembly |
| Steering System | 183-204 | Steering System Operation, Steering Control Unit Repairs, Trouble Analysis for Steering System |
| Vibration System | 205-226 | Drum and Vibration Operation, Repairing the Drum, Trouble Analysis for Drum and Vibration |
| Control Systems | 227-236 | Governor Control System, Travel Control System, Trouble Analysis for Control Systems |
| Optional Equipment | 237-254 | Leveling Blade System, Leveling Blade Cylinder Repairs, Trouble Analysis for Leveling Blade |
| Special Tools | 255-262 | Vibration Read Frequency Meter, Filling and Filtering Unit, Mounting Jig, Centering Jig, Puller, Pin Wrench, Centering Plate, Mounting Tool |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic Vibrator Pump Output Rate and Speed | 5.2 GPM [20 lpm] @ 2500 RPM | p. 20 |
| Hydraulic Vibrator Motor Input Rate | 5.2 GPM [20 lpm] @ 4000 psi. [276 bar] | p. 23 |
| Hydraulic system oil capacity | 8.0 Gal. [30.3 L] | p. 65 |
| Hydraulic oil filtration | 10 micron | p. 79 |
| Weight of travel pump | 50 kg | p. 131 |
| Vibration pump high pressure nominal value | 180 bar (starting pressure), 60 bar (operating pressure) | p. 222 |
| Vibration valve nominal value | 200 bar | p. 222 |
| Fuel Tank Capacity | 10 Gallons | p. 16 |
| Battery Voltage | 12 Volts | p. 17 |
| Transmission System Oil Capacity | 8.0 Gallons | p. 18 |
| Steering Relief Pressure | 1,850 psi | p. 20 |
| Drum Width | 47.0 in. | p. 22 |
Bomag BW124D, BW124PD, BW124PDB Common Problems This Manual Covers
No vibration or weak compaction
The drum spins but the exciter never comes up, or amplitude fades mid pass and the lift will not make density. The Vibration System chapter covers drum and vibration operation, drum repair and a dedicated trouble analysis for drum and vibration faults.
Manual Section: Vibration System p. 205Roller loses travel drive
Sluggish response, no power on grade or a machine that creeps in neutral usually points to the closed loop travel circuit. The Transmission System chapter covers travel pump repairs, flushing the transmission system after a failure, and trouble analysis for the drive.
Manual Section: Transmission System p. 127Engine will not crank
A dead start circuit or gauges that read wrong strand the machine at the worst moment. The Electrical System chapter lays out the major electrical components and a trouble analysis for the electrical system so you can chase the fault with a meter instead of parts.
Manual Section: Electrical System p. 107Steering slow, stiff or wandering
Hard steering or drift through the articulated joint makes straight passes impossible. The Steering System chapter explains steering system operation, steering control unit repairs and trouble analysis for the steering system.
Manual Section: Steering System p. 183Parking brake drags or will not release
A brake that stays applied heats up and stops the machine on the lift. The Brake System chapter covers dynamic braking, basic operation, the secondary and parking brake system, and the hydraulic control valve assembly behind it.
Manual Section: Brake System p. 179Erratic engine speed or throttle response
Surging or a travel lever that does not track the operator's hand points at the control side rather than the engine itself. The Control Systems chapter covers the governor control system, the travel control system and trouble analysis for both.
Manual Section: Control Systems p. 227Leveling blade drifts or will not lift
On a BW124PDB with the blade option, a cylinder that bleeds down leaves you unable to strike off before compacting. The Optional Equipment chapter covers the leveling blade system, leveling blade cylinder repairs and trouble analysis for the blade.
Manual Section: Optional Equipment p. 237Frequently Asked Questions
Which machines does this manual cover?
Bomag BW124D, BW124PD and BW124PDB single drum rollers with serial number prefix A219. It is the factory repair manual, publication 0852636, 262 pages in English, covering specifications, operation, maintenance and system by system repair.
Does it cover the Deutz engine?
Yes. The machines use the Deutz F3L1011, and the Engine chapter covers removal and installation of the engine assembly. Engine specifications sit in the Specifications chapter and routine engine service in the Maintenance chapter. p. 101
Can I troubleshoot the hydrostatic drive with it?
Yes. The Transmission System chapter is the largest in the book, with travel pump repairs, a procedure for flushing the transmission system after contamination, and trouble analysis tables for drive faults. p. 127
Are vibration test pressures included?
Yes. The Vibration System chapter gives nominal values, including 180 bar starting and 60 bar operating pressure for the vibration pump and 200 bar for the vibration valve, alongside trouble analysis for drum and vibration. p. 205
How will I receive this Bomag BW124D Repair Manual?
Straight to your device: 262 pages of searchable Repair Manual, downloadable the moment payment goes through.
Can I print specific sections of this Bomag BW124D Repair Manual?
Yes. The PDF is DRM-free, so printing works from any reader and any printer.
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