Bomag BW 177 DH-3 - User Manual

Service Training
Single Drum Rollers
BW 156/177 D-3/DH-3/PDH-3
BW 156/177 D-3/DH-3/PDH-3
008 098 14
Edition 04/2000

Summary

Technical Data: BW 156 D-3

Technical Data: Axle and Vibration Systems (BW 156 D-3)

Technical Data: Steering and Capacities (BW 156 D-3)

Maintenance Procedures

Maintenance Guidelines

Maintenance Schedule and Tasks

Maintenance Table

Diesel Engine Overview

Engine Valve Clearance Adjustment

Valve Clearance Adjustment Procedure

Changing the Injection Pump

Injection Pump Replacement Steps

Travel System Hydraulic Diagrams

Travel System Operation

Brake Control System

Brake Operation and Parking

Details how the hydrostatic circuit and multi-disc brakes function as service and parking brakes.

Travel Pump Diagram and Function

Multi-function Valve

Charge Pressure Relief Valve

Drum Drive Motor

Axle and Drum Drive Motors (DH;PDH)

Drum Drive (51 D110 + GFT17) DH;PDH

Troubleshooting: Travel Circuit

Travel Circuit Fault Finding

Introduces troubleshooting steps for possible faults in the travel circuit.

Travel System Troubleshooting Flowcharts

Machine Not Driving Diagnosis

Provides a flowchart for diagnosing issues when the machine does not drive.

Troubleshooting Travel System Issues

No Drive and Steering Faults

Offers troubleshooting steps for lack of drive, steering, and brake issues.

Troubleshooting: Performance and Temperature

Low Travel Power; Overheating

Guides on diagnosing insufficient travel power and hydraulic oil overheating.

Travel System Troubleshooting Checks

Checking Neutral Position (Fig. F1)

Details how to check the travel pump's neutral position.

Adjusting Travel Cable

Travel Cable Adjustment Procedure

Explains how to adjust the travel cable for correct neutral position.

Checking Mechanical Neutral Position

Mechanical Neutral Position Check (Fig. F3)

Describes the procedure to check the mechanical neutral position of the pump control.

Adjusting Mechanical Neutral Position

Mechanical Neutral Position Adjustment (Fig. F4)

Details how to adjust the mechanical neutral position using pressure gauges.

Checking the Servo Control

Servo Control Inspection (Fig. F5)

Outlines steps for checking the servo control for wear and proper function.

Checking Charge Pressure

Charge Pressure Measurement (Fig. F6)

Explains how to measure charge pressure using a gauge.

Checking Charge Pressure Relief Valve

Charge Pressure Relief Valve Inspection (Fig. F7)

Details the inspection of the charge pressure relief valve for damage.

Checking Brake Leakage

Brake Leakage Test (Fig. F8)

Guides on checking for brake system leaks that affect charge pressure.

Checking High Pressure

High Pressure Measurement (Fig. F9)

Details how to measure high pressure and charge pressure using gauges.

Checking Brake Valve Magnetic Coil

Brake Valve Coil Test (Fig. F10)

Explains how to check the voltage and current draw of the brake valve magnetic coil.

Checking Brake Releasing Pressure

Brake Releasing Pressure Test (Fig. F11)

Guides on measuring brake releasing pressure to verify brake valve function.

Checking Drum Drive Motor

Drum Drive Motor Pressure Test (Fig. F12)

Details how to test the drum drive motor's pressure performance.

Checking Axle Drive Motor; Travel Pump

Axle Drive Motor & Travel Pump Test (Fig. F13)

Explains how to test axle drive motor and travel pump for faults.

Checking Flushing Valves

Flushing Valve Inspection (Fig. F14)

Checking Engine Speed

Engine Speed Measurement (Fig. F15)

Checking the Thermostat Valve

Thermostat Valve Function Check (Fig. F16)

Checking Multi-function Valves

Multi-function Valve Heat Check (Fig. F17)

Vibration System Overview

Vibration System Operation

Vibration Pump Details

Vibration System Valves and Charge Pump

Vibration Motor Details

Vibration Motor Operation

Troubleshooting: Vibration Circuit

Vibration Circuit Fault Finding

Introduces troubleshooting steps for possible faults in the vibration circuit.

Vibration System Troubleshooting Flowcharts

No Vibration Diagnosis

Provides a flowchart for diagnosing issues when there is no vibration.

Troubleshooting Vibration Amplitude Issues

Amplitude Control Faults

Offers troubleshooting steps for vibration working only with high or low amplitude.

Troubleshooting Vibration Frequency

Low Vibration Frequency Diagnosis

Provides a flowchart for diagnosing issues with low vibration frequency.

Vibration Pressure Checks

Checking Vibration Pressures (Fig. V1)

Explains how to check charge, starting, and operating pressures for the vibration system.

Checking Vibration Motor Coupling

Vibration Motor Coupling Inspection (Fig. V2)

Details how to inspect the coupling between the vibration motor and shaft.

Checking Vibration Pump

Vibration Pump Pressure Test (Fig. V3)

Explains how to test the vibration pump's pressure output.

Checking Vibration Valve Magnetic Coil

Vibration Valve Coil Test (Fig. V4)

Details checking the voltage and current of the vibration valve magnetic coil.

Adjusting Vibration Frequency

High and Low Frequency Adjustment (Fig. V5)

Explains how to adjust high and low frequencies on the vibration pump.

Checking Vibrator Shaft Bearings

Vibrator Shaft Bearing Inspection (Fig. V6)

Checking Vibration Flushing Valve

Vibration Flushing Valve Inspection (Fig. V7)

Steering System Overview

Steering System Operation

Steering;Charge Pump

Steering Valve Block

Troubleshooting: Steering System

Steering System Fault Finding

Introduces troubleshooting steps for possible faults in the steering system.

Steering System Troubleshooting Flowcharts

No Steering Diagnosis

Provides a flowchart for diagnosing steering issues like stiffness or lack of response.

Checking Steering Pressure

Steering Pressure Measurement (Fig. L1)

Explains how to measure steering system pressure.

Checking Steering;Charge Pump

Steering;Charge Pump Test (Fig. L2)

Checking Steering Cylinders

Steering Cylinder Leak Test (Fig. L3)

Electric System Overview

Ignition and Starting Circuit

Starting System Operation

Fault Monitoring System

Fault Monitoring Board Diagram

Fault Indication and Engine Behavior

Engine Operation Faults

Table of Fault Indications

Fault Indication Summary

Function Diagram Fault Indicator

Fault Indicator Logic Flow

Brake System Overview

Brake Control with Engine Running

Brake Engagement and Release

Travel Speed Range Selector

Travel Direction Control

Travel Speed Range Operation

Speed Range Selector Switch Functions

Vibration Control Circuit

Switching Vibration On

Vibration Activation Sequence

Bomag BW 177 DH-3 Specifications

General

Brand	Bomag
Model	BW 177 DH-3
Category	Construction Equipment
Language	English