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Volvo Penta TAD734GE User Manual

Volvo Penta TAD734GE
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The TAD734GE is a powerful, reliable
and economical Generating Set Diesel
Engine built on the dependable in-line six
design.
Durability & low noise
Designed for easiest, fastest and most
economical installation. Well-balanced to
produce smooth and vibration-free opera-
tion with low noise level.
To maintain a controlled working tem-
perature in cylinders and combustion
chambers, the engine is equipped with
piston cooling. The engine is also fitted
with replaceable cylinder liners and valve
seats/guides to ensure maximum durabil-
ity and service life of the engine.
Low exhaust emission
The state of the art, high-tech injection
and charging system with low internal
losses contributes to excellent combus-
tion and low fuel consumption.
The TAD734GE complies with EU Stage
2 exhaust emission regulations.
Easy service & maintenance
Easily accessible service and mainte-
nance points contribute to the ease of
service of the engine.
Technical description
Engine and block
Optimized cast iron cylinder block with opti-
mum distribution of forces
Piston cooling for low piston temperature
and reduced ring temperature
Drop forged steel connecting rods
Crankshaft hardened bearing surfaces and
fillets for moderate load on main and big-
end bearings
Keystone top compression rings for long
service life
Replaceable valve guides and valve seats
Three PTO positions at flywheel end
Lift eyelets
Flywheel housing with connection acc. to
SAE 2
Flywheel for flexplate
Fixed integrated radiator front engine sus-
pension
Transport brackets, rear
Lubrication system
Full flow cartrigde insert filter
Rotary displacement oil pump driven by the
crankshaft
Deep front oil sump
Oil filler on top
Oil dipstick, short in front
Integrated full flow oil cooler, side-mounted
Fuel system
Common rail
Gear driven fuel feed pump
Six hole fuel injection nozzles
Electronic governor
Fuel prefilter with water separator
Fine fuel filter of cartridge insert type
Intake and exhaust system
Connection flange for exhaust line
Waste gate turbo charger, centre low with
exhaust flange
Two-stage air filter, with cyclon
Heater flange in charge air inlet (with relay)
Cooling system
Belt driven, maintenance-free coolant pump
with high degree of efficiency
Efficient cooling with accurate coolant con-
trol through a water distribution duct in the
cylinder block
Reliable thermostat with minimum pressure
drop
Pusher fan
Electrical system
Engine Management System 2 (EMS 2), an
electronically controlled processing system
which optimizes engine performance. It also
includes advanced facilities for diagnostics
and fault tracing
The instruments and controls connect to the
engine via the CAN SAE J1939 interface,
either through the Control Interface Unit
(CIU) or the Display Control Unit (DCU).
The CIU converts the digital CAN bus signal
to an anolog signal, making it possible to
connect a variety of instruments. The DCU is
a control panel with display, engine control,
monitoring, alarm, parameter setting and di-
agnostic functions. The DCU also presents
error codes in clear text.
Sensors for oil pressure, boost pressure,
boost temp, exhaust temp, coolant temp,
water in fuel, fuel pressure and two speed
sensors.
Features
Electronic governing, EMS2
CAN bus communication
Compact design for the power class
High power to weight ratio
Emission compliant
Noise optimized engine design
Dual speed
VOLVO PENTA INDUSTRIAL DIESEL
TAD734GE
250kW (340 hp) at 1500 rpm, 263 kW (357 hp) at 1800 rpm, acc. to ISO 3046

Table of Contents

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Volvo Penta TAD734GE Specifications

General IconGeneral
Engine ModelTAD734GE
Engine TypeDiesel
Number of Cylinders6
Fuel SystemCommon Rail
Cooling SystemWater-cooled
ConfigurationIn-line
Displacement7.15 L
Bore108 mm
Power Output162 kW
AspirationTurbocharged
EmissionsEU Stage II

Summary

VOLVO PENTA TAD734GE Engine Introduction

Engine Design and Key Benefits

Powerful, reliable, economical, durable, low noise, low emission, and easy-to-service in-line six diesel engine.

Technical Systems Overview

Covers engine block, lubrication, fuel, intake/exhaust, cooling, and electrical systems.

Engine Features and Operation

Highlights EMS 2, electronic governing, CAN bus, and noise optimization for efficient operation.

Technical Data and Specifications

General Engine Specifications

Engine designation, bore, stroke, displacement, compression ratio, and weight details.

Performance and Consumption Metrics

Power output, fuel consumption rates, and emission compliance at various speeds.

Standard Equipment List

Details the standard components and features included with the engine package.

Engine Management System (EMS)

EMS System Functionality

Explains the EMS 2 system, input/output signals, and fuel control for precise engine operation.

Diagnostics and Fault Handling

Describes the diagnostic function for detecting, locating, and reporting engine malfunctions.

Instruments and Control Unit (DCU)

DCU Control Panel Overview

Details the DCU instrument panel, its functions, menus, and button operations for monitoring.

Engine Starting Procedure

Provides step-by-step instructions for starting the engine using the DCU panel.

Starting the Engine

Before Starting Checks

Essential checks including oil level, fuel valves, coolant, and general visual inspection.

Starting in Extreme Conditions

Guidance on starting in cold weather and using auxiliary batteries safely.

Fault Handling and Troubleshooting

Fault Tracing and Symptoms

Table of common symptoms, their possible causes, and corresponding page references for solutions.

Diagnostic Function Details

Explains the diagnostic function's role in monitoring, detecting, and guiding fault tracing.

Maintenance Schedule

Service Program Intervals

Outlines recommended maintenance intervals based on hours or calendar time for various service types.

Maintenance Procedures Overview

Introduces maintenance items and notes that unlisted points require authorized workshops.

General Maintenance and Component Identification

Engine General Inspection

Emphasizes visual inspection of the engine for leaks, loose parts, and belt condition.

Air Filter Check and Replacement

Details checking the air filter and the procedure for replacing it when indicated.

Location of Sensors

Diagram showing the location of various engine sensors on the TAD940-943GE/VE and TAD950-952VE models.

Lubrication System Maintenance

Oil Level Check and Topping Up

Instructions on how to check and maintain the engine oil level, including dipstick reading and oil type.

Engine Oil and Filter Change

Step-by-step guide for changing engine oil and oil filters, with safety precautions.

Fuel System Maintenance

Fuel Pre-filter Change

Procedure for changing the fuel pre-filter, including draining and lubrication steps.

Bleeding the Fuel System

Instructions on how to vent the fuel system after filter replacement or fuel supply interruption.

Cooling System Maintenance

Coolant System Checks and Filling

Guidance on checking coolant levels, topping up, and filling a completely empty system.

Cooling System Cleaning

Procedures for cleaning the cooling system, including flushing and using cleaning solutions.

Electrical System Maintenance

Main Switch and Fuses

Information on the main switch operation and the function of the 10A circuit breaker fuse.

Battery Maintenance and Charging

Details on battery connection, cleaning, filling, charging, and safety precautions.

Storage Procedures

Preparing for Storage

Checklist for laying up the engine for periods of two months or more to prevent damage.

Bringing Out of Storage

Steps to take to prepare the engine for use after a period of storage.

Technical Data - Engine Models

Engine Model Specifications

Comparative data for TAD940GE, TAD941GE, TAD940VE, TAD941VE, TAD942VE, TAD943 models.

Model Variants Specifications

Comparative data for TAD950VE, TAD951VE, TAD952VE models.

Technical Data - System Details

Lubrication System Data

Oil capacity, pressure, filter types, oil recommendations based on sulfur content, and viscosity charts.

Fuel System Specifications

Feed pump pressures, bypass valve opening pressure, fuel standards, and biodiesel compatibility.

Technical Data - System Parameters

Cooling System Parameters

Pressure cap, coolant quantities, thermostat specifications, and coolant types.

Water Quality Standards

Lists ASTM D4985 water quality parameters for coolant mixing.

Technical Data - Electrical System

Alternator and Battery Specifications

Details on system voltage, alternator ratings, battery capacity, and electrolyte specific gravity.

Identification Numbers

Engine and Chassis Identification

Explains how to locate and interpret chassis ID, serial numbers, engine designation, and software versions.

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