BOMAG BW 900-50 Tandem Vibratory Roller Service Manual 2019 – PDF Download

Description

BOMAG BW 900-50 Tandem Vibratory Roller Service Manual – 2019

This BOMAG BW 900-50 service manual is the workshop-level reference for the tandem vibratory roller, published under document number 00840318 with a 2019 date. It is written for BOMAG Customer Service and professionally trained personnel and supports deinstallation, dismantling, assembly, installation and repair of components and assembly groups. The manual applies to machines in the serial ranges S/N 101 834 51 1001> and S/N 861 834 07 2170>.

File Details

• Manual type: Service Manual (workshop-level)
• Brand: BOMAG / FAYAT GROUP
• Model: BW 900-50 tandem vibratory roller
• Document number: 00840318
• Edition / date: 2019
• Language: English
• File format: PDF
• Page count: 245 pages (including circuit and hydraulic diagram appendix)

Chapters Covered

• 1 General information – Introduction, safety regulations, signage, maintenance and repair
• 1.3 Maintenance and repair – Notes on repair (electrics, hydraulics, gaskets, bearings, screws and nuts, tightening torques), general maintenance notes
• 2 Technical data – Machine data, additional technical data, terms and basis of calculation, fuels and lubricants, table of fuels and lubricants
• 3 Overview of machine – General information, electric systems, hydraulic system, machine assemblies (engine, oscillating articulated joint, drums)
• 4 Electric systems – Measuring technology, circuit diagrams, Telemecanique switch, jump starting, overview of electric system, control elements, central electrics, fuse assignment, engine oil pressure monitoring, proximity switches B08/B38
• 5 Hydraulic system – Basic principles (open/closed circuits, swash plate pump, gear pumps and motors), overview of hydraulics, description of hydraulic components (travel pump PMVO 13S, travel motor TG405, steering valve), description of hydraulic circuits, tests and adjustments, flushing and bleeding
• 6 Machine assemblies – Engine (Honda GX 630 overview, carburettor inspection, maintenance), oscillating articulated joint (removal, installation, repair), drum (vibratory front drum, rear drum, inspection and maintenance)
• 7 Troubleshooting – Emergency procedures, electrical troubleshooting, hydraulic troubleshooting, engine troubleshooting
• 8 Special tools – Hydraulic system tools, electrics tools, drum tools
• 9 Index
• Appendix – A.1 Circuit diagram 78, A.2 Hydraulic diagram 138

Across those chapters the manual delivers the complete servicing workflow for the BW 900-50: it opens with safety regulations and shop practice, then lays out the machine’s technical data and fuel/lubricant requirements, then moves into system-level chapters for electrics, hydraulics and the drum assemblies. The hydraulic section alone walks through the travel pump, travel motor, steering valve, travel circuit, vibration circuit and steering circuit, then supplies step-by-step pressure tests, neutral-position adjustment, flushing procedures and bleeding of the travel circuit. The machine assemblies chapter covers the Honda GX 630 engine, the oscillating articulated joint, and full disassembly and reassembly of both the front vibratory drum and the rear drum. The troubleshooting chapter groups faults by system, and the appendix provides the wiring and hydraulic diagrams needed to trace them.

Coverage and Serial Numbers

This BOMAG BW 900-50 tandem vibratory roller service manual is written to cover machines in the serial number ranges S/N 101 834 51 1001> and S/N 861 834 07 2170>. The engine is the air-cooled Honda GX 630, a four-stroke two-cylinder unit rated 14.9 kW at 3300 min-1, and the manual addresses it both as a service item (oil, oil filter, air filter, spark plugs, valve clearance, idle speed, fuel pre-filter, fuel lines) and as a troubleshooting subject.

Systems Covered in Depth

The BW 900-50 repair manual concentrates its technical detail on the systems that fail most often on a tandem roller. Electrical coverage includes the measuring technology you need before touching the harness, how to read the BOMAG circuit diagrams, the Telemecanique switch, the central electrics board with its relays (K04 stepping relay for vibration, K05/K31 start current, K26 reverse alarm, K29 vibration, K23 spraying pump, K96 engine oil pressure, K69 engine shut-down, K136 seat contact timer), fuse assignment, engine oil pressure monitoring, and the B08/B38 proximity switches on the travel lever. Hydraulic coverage is the largest single block: the PMVO 13S travel pump, the TG405 gerotor travel motor, the steering valve, the open vibration circuit, the closed travel circuit, and the steering circuit, followed by rotation-speed checks, travel-circuit pressure tests, travel-pump high-pressure test, vibration-circuit pressure tests, vibration-motor leakage test, steering-circuit pressure tests, flushing of the travel system and bleeding of the travel circuit.

Specifications and Service Data

Alongside the procedures, this BOMAG BW 900-50 service manual PDF contains the numbers a technician needs at the bench: tightening torques for metric, UNC and UNF fasteners, hydraulic fittings in L and S series, wheel nuts and anti-seizure-paste joints; strength-class identification for screws and nuts; operating weight and CECE weight; travel and working speeds; gradeability; drum vibration frequency and amplitude; centrifugal force; engine oil, hydraulic oil and fuel capacities; and the engine valve clearance and spark plug gap values. The engine oil change interval, hydraulic oil change interval and filter service intervals are all listed with their operating-hour triggers.

Who This Manual Is For

This BW 900-50 workshop manual suits the workshop technician servicing a fleet machine, the independent repair shop taking on a BOMAG tandem roller for the first time, and the owner-operator who wants the factory procedure and torque values before opening a hydraulic circuit. It assumes access to standard hand tools, a hydraulic test case with 60 bar and 600 bar gauges, and a filling and filtering unit for the flushing procedures. The document does not cover operator-level daily checks beyond the maintenance tables – those belong in the operating and maintenance instructions.

With the BOMAG BW 900-50 Tandem Vibratory Roller Service Manual on hand you can diagnose an electrical fault against the printed circuit diagram, test the travel circuit pressures to specification, flush the hydrostatic system after a component change, bleed the travel circuit correctly, adjust the neutral position of the travel pump, set valve clearance on the Honda GX 630, and rebuild the oscillating articulated joint or a drum using the illustrated step-by-step procedures. Getting the procedure and the torque value right the first time is the difference between a machine that returns to the job and a comeback repair on a hydrostatic system that is unforgiving of contamination. The manual is delivered as an instant PDF download – no shipping, no waiting, viewable on any device and printable for the workshop shelf.