Drive controls, service intervals, and daily checks for the BW177 roller family are settled in one document: the 114-page Bomag BW177D-50, BW177DH-50, BW177PDH-50 operator manual PDF, printed by the factory as document 0852820 for these three single drum vibratory roller variants. Maintenance takes up close to half of the book, walking you from the running-in schedule through engine oil changes, drive axle and vibration bearing oil, hydraulic filters, and parking brake adjustment. Before any of that, the indicator descriptions and pre-start tests tell your operators what every light and lever means, and the safety chapter covers loading, towing, and jump-lead starts. Set intake valves to 0.35 mm, exhaust to 0.50 mm, and torque wheel nuts to 550 Nm when they come off. A roller sitting idle while somebody hunts one interval stalls the whole lift. Bookmarked and text-layered, this PDF is wherever the machine is.
What's Inside This Bomag BW177D-50, BW177DH-50, BW177PDH-50 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Technical Data | 9-14 | Weights, Travel Characteristics, Engine, Electrical Equipment, Brakes, Steering |
| Safety Regulations | 15-22 | General, Loading the Machine, Towing the Machine, Starting the Machine (Before Starting, Starting with Jump Leads, Starting in Closed Rooms) |
| Indicators and Controls | 23-34 | Description of Indicators |
| Operation | 35-56 | Tests Before Starting, Starting the Engine, Driving the Machine |
| General Maintenance and Fluids | 57-66 | Maintenance Notes, Engine Oil, Fuel Quality, Hydraulic Oil, Coolant, Lubricants Table |
| Running-In and Maintenance Schedule | 67-69 | Running-In Instructions, Maintenance Chart, Service Intervals |
| Daily Maintenance Checks | 70-73 | Engine Oil Level, Water Separator, Fuel Level, Coolant Level, Hydraulic Oil Level, V-Belt, Tire Pressure |
| Engine and Filter Maintenance | 74-83 | Scrapers, Engine Oil Change, Cooling Fins, Battery Service, Fuel Tank Sludge, Fuel Filter, Fuel Pre-Filter |
| Drive System and Component Maintenance | 84-91 | Cooling Fan V-Belt, Refrigerant Compressor V-Belt, Drive Axle Oil, Planetary Drive Oil, Drum Drive Gear Oil, Vibration Bearing Oil, Fastening Elements, ROPS |
| Advanced Maintenance and Adjustments | 92-106 | Valve Clearance, Hydraulic Oil Change, Hydraulic Oil Filter, Coolant Change, Air Filter Cartridge, Parking Brake Adjustment, Tires, Engine Conservation |
| Trouble Shooting | 107-114 | Engine, Optional Pad Foot, Smooth Shell Kit Maintenance |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Brake release screw adjustment | 8 mm | p. 50 |
| Wheel nut tightening torque | 550 Nm [405 ft.lb] | p. 91 |
| Intake valve clearance | 0.35 mm [0.014 in] | p. 93 |
| Exhaust valve clearance | 0.50 mm [0.020 in] | p. 93 |
| Smooth shell kit Grade 10.9 bolt/nut combination torque | 236 ft. lb. (320 Nm) | p. 111 |
| Engine Oil Capacity | 8.5 litres | p. 66 |
| Fuel Tank Capacity | 150 litres | p. 66 |
| Hydraulic Oil Capacity | 60 litres | p. 66 |
| Engine Rated Power | 55 kW | p. 10 |
| Engine Rated Speed | 2600 rpm | p. 10 |
| BW177D-50 | ||
| Tire Pressure | 1.9 bar | p. 11 |
| BW177PDH-50 | ||
| Tire Pressure | 1.6 bar | p. 13 |
Bomag BW177D-50, BW177DH-50, BW177PDH-50 Common Problems This Manual Covers
Bomag BW177D-50 roller will not travel forward or reverse, engine running fine and drum stopped
Verify the parking brake is fully released and the travel lever returns to neutral before selecting a speed range. Check the hydraulic oil level at the sight glass during the daily checks on page 70; the system holds 60 litres. If the drum still will not move, review the operating instructions on page 39 before attempting to tow.
Manual Section: Operation p. 39Engine cranks slowly or will not start first thing on cold mornings
Check fuel level first; the tank holds 150 litres and running it dry pulls air into the lines. Drain the water separator during the daily checks on page 70, then work through the engine no-start table on page 109. In freezing weather confirm the battery is fully charged with clean, tight terminals.
Manual Section: Trouble Shooting p. 109Engine speed hunts and revs pulse at idle and during normal compaction passes
Drain water from the fuel water separator during the daily checks on page 70 and check the tank for sludge. Verify the engine holds its rated 2600 rpm under load. Inspect the dry air filter cartridge for clogging, then follow the irregular operation steps in the troubleshooting table on page 109 before finishing the lift.
Manual Section: Trouble Shooting p. 109Battery charge control light stays on after the engine reaches working speed
Check V-belt condition and tension during the daily checks on page 70; a glazed or loose belt stops the alternator from charging. Clean and tighten the battery terminals following the service procedures on page 75. If the light stays on with the engine at its rated 2600 rpm, use the charge control light steps on page 109.
Manual Section: Daily Maintenance Checks p. 70Vibration and clunking felt from the rear wheels after transport or tire service
Check every wheel nut with a torque wrench; the specified tightening torque is 550 Nm on page 104. Recheck after the first few hours back in the pass per the maintenance schedule on page 68, and inspect the rims and fastening elements as covered in drive system maintenance on page 84.
Manual Section: Advanced Maintenance and Adjustments p. 104Frequently Asked Questions
What is the torque specification for the wheel nuts on the BW177 series?
The wheel nuts must be tightened in a cross-type pattern to a torque of 550 Nm (405 ft. lb.). p. 104
What is the valve clearance specification for the engine?
The valve clearance for the intake valve is 0.35 mm (0.014 in) and for the exhaust valve is 0.50 mm (0.020 in), applicable for both hot or cold engine conditions. p. 93
What is the engine oil capacity for the BW177 series?
The engine oil capacity is approximately 8.5 litres (9.0 qt) without the oil filter. p. 66
What is the correct tension for a new V-belt on the cooling fan?
The nominal tension value for a new V-belt is 400 to 467 N (90 to 105 lb). p. 84
How often should the engine oil and oil filter be changed?
The oil change interval is every 500 operating hours, provided the fuel used has a maximum 0.5% sulphur content by weight and ambient temperatures are higher than -10 °C. p. 63
What format is this Bomag BW177D-50 manual in?
A 114-page Operator Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Is this Bomag BW177D-50 Operator Manual printable?
Printing is allowed without restriction. Pull the pages you need for the job and bin them when they get greasy.
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