A tandem roller you can't operate is a paving train standing still, and this Bomag BW 174 APO-4i operator manual PDF puts all 292 pages of the factory's answer between you and the next mat. It is Bomag document 008 202 87 EN, the official operating and maintenance instructions for this tandem vibratory roller. The LC display unit, operating console and travel lever console each get their own walkthrough, so every switch on the driver's stand has a function you can look up. Maintenance runs on hour marks from 50 through 3000, and troubleshooting pairs engine fault tables with the full fuse assignment for the central electrics. Offset the crabwalk to its full 1130 mm; torque the precision spreader's fastening screws to 10 Nm. When it's just you, the roller and a cooling mat, nobody is answering the phone. This bookmarked, text-searchable PDF gets the machine back in the pass.
What's Inside This Bomag BW 174 APO-4i Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 11-14 | Foreword, Machine Type Plate and Engine Type Plate |
| Technical Data | 15-20 | Noise and Vibration Data |
| Concerning Your Safety | 21-70 | Definition of Responsible Persons (Operating Company, Expert / Qualified Person, Driver / Operator) |
| Indicators and Control Elements | 71-106 | Driver’s Stand (LC-Display Unit, Operating Console, Steering Console, Travel Lever Console) |
| Checks Prior to Start Up | 107-122 | Notes on Safety, Visual Inspections and Function Tests, Checking the Engine Oil Level, Checking the Fuel Level, Topping Up Fuel (Refuelling), Checking the Hydraulic Oil Level |
| Operation | 123-182 | Setting Up the Work Place (Driver’s Seat, Lc Display Unit), Electronic Immobilizer, Starting the Engine |
| Loading / Transporting the Machine | 183-194 | Prepare for Transport, Loading the Machine, Lashing the Machine to the Transport Vehicle, Loading by Crane, After Transport |
| Maintenance | 195-272 | Preliminary Remarks and Safety Notes, Preparations / Concluding Work (Overview of Maintenance Flaps and Doors, Opening / Closing the Maintenance Doors) |
| Troubleshooting | 273-286 | Preliminary Remarks, Starting the Engine with Jump Leads, Fuse Assignment (Notes on Safety, Central Electrics, Main Fuses, Cabin Control Console), Engine Faults |
| Disposal | 287-288 | Final Shut-Down of Machine |
| List of Special Tools | 289-292 | Belt Tension Tester, Tool Kit Edge Cutter |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 12 V DIN socket load capacity | 15 A | p. 99 |
| tightening torque for fastening screws of the precision spreader | 10 Nm (7.4 ft·lbf) | p. 121 |
| Maximum crabwalk offset | 1130 mm (44.5 in) | p. 148 |
| Crabwalk notched position offset | 110 mm (4.3 in) | p. 148 |
| Tightening torque for locking screws | 10 Nm (7.4 ft·lbf) | p. 161 |
| towing speed | 1 km/h (0.6 mph) | p. 177 |
| Max. operating weight | 11100 kg | p. 16 |
| Operating weight with ROPS cabin | 9500 kg | p. 16 |
| Front axle load | 4500 kg | p. 16 |
| Rear axle load | 5000 kg | p. 16 |
| Max. travel speed | 10.5 km/h | p. 17 |
| Rated power ISO 14396 | 74.0 kW | p. 17 |
Bomag BW 174 APO-4i Common Problems This Manual Covers
Bomag BW 174 APO-4i engine won't start or cranks slowly on cold morning startup
Start at the battery terminals: corrosion and loose clamps come first, before anything bigger. Work through the engine fault table starting on page 283 for no-start and poor-starting causes. Verify fuel level; the tank holds 180 l and a near-empty tank on a grade starves the pickup. If the battery is flat, follow the jump lead procedure in the troubleshooting chapter exactly.
Manual Section: Engine faults p. 283Engine oil pressure warning light stays lit on the display after startup at idle
Shut the engine down immediately and check the oil level on the dipstick. Fill to the upper mark; the engine takes 11.5 l from empty, per the fill quantities on page 207. Restart and watch the LC display. If the light stays on with a correct oil level, follow the low oil pressure steps on page 283 and keep the machine parked.
Manual Section: Engine faults p. 283Drum vibration weak or exciter fails to start when vibration switch is pressed
Weak vibration starts with the exciter oil level, not with the switch. The exciter shaft hub tube for the front drum takes 21.5 l (5.7 gal us) of SAE 75W-90, API GL-5 gear oil per the fill quantities on page 207, and its level check sits at the 500 hour interval on page 235. Verify the engine is at full throttle and the amplitude preselection is set correctly on the console. Check the central electrics fuses before calling for service.
Manual Section: Maintenance p. 235Water spray system not wetting the drum, asphalt sticking to the drum surface
Water tank level comes first; it holds 750 l, per the technical data on page 18, and a low tank uncovers the suction on grades. Clean the spray nozzles and the inline filter, then check scraper bar contact across the drum. Run the spray on interval mode and confirm even coverage before the next pass on the mat.
Manual Section: MaintenanceMachine pulls to one side, rear drum tracking offset from the front drum
Look at the crab walk setting on the operating console; each notched position offsets the drums by 110 mm (4.3 in), up to a maximum of 1130 mm (44.5 in), as described on page 148. Return the switch to center for normal rolling. If the drums still track offset with crab walk centered, have the articulated joint inspected before the next shift.
Manual Section: Operation p. 148Frequently Asked Questions
What are the torque specifications for the precision spreader fastening screws?
The fastening screws for the precision spreader on the right and left sides must be tightened to a torque of 10 Nm (7.4 ft·lbf). p. 121
What is the procedure for checking the hydraulic oil level?
The hydraulic oil level should be checked at room temperature (approx. 20 °C (68 °F)). The normal level is approximately 3 cm (1.2 in) below the top edge of the inspection glass, and the minimum level is 2/3 of the height of the inspection glass. p. 115
What is the required oil viscosity for the exciter shaft hub tube for the front drum?
The exciter shaft hub tube for the front drum requires SAE 75W-90, API GL-5 gear oil. The filling quantity is 21.5 liters (5.7 gal us). p. 207
What is the nominal tension value for the multi-groove generator belt?
The nominal tension for the multi-groove belt during initial assembly (new belt) is 300 N (67 lbf) (cold). After a running-in time, in the case of reassembly, the value remains 300 N (67 lbf). p. 216
How much oil is required for the exciter housing of the precision spreader?
The exciter housing of the precision spreader requires exactly 0.2 liters (0.05 gal us) of SAE 15W-40 oil. p. 252
How is this Bomag BW 174 APO-4i Operator Manual delivered?
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