8
Presentation
TAD TWD
TAD1240GE, TAD1241GE/VE, TAD1242GE/VE and TWD1240VE are inline, direct-injected, 6-cylinder industrial
diesel engines.
They are equipped with electronically controlled fuel management, turbochargers, intercoolers and thermostati-
cally regulated cooling systems and electronic RPM regulation.
Technical description
Engine and cylinder block
– Cylinder block and cylinder head of alloyed cast
iron
– Seven main bearing induction hardened
crankshaft
– Wet replaceable cylinder liners
– Cast aluminum pistons with oil cooling
– Three piston rings, the top of which is of the
”keystone” variety
– Induction hardened overhead camshaft with roller
rocker arms
– Four valves per cylinder
– Replaceable valve seats and valve guides
Fuel system
– Microprocessor-based control unit for fuel delivery
(EDCIII)*
– Gear-driven feeder pump
– Centrally placed unit injector with
electromagnetically controlled fuel valves
– Fuel filter of spin-on type and a water separating
filter
* EDC III (”Electronic Diesel Control”), see separate description.
Lubrication system
– Water-cooled oil cooler
– Gear-driven oil pump
– Full flow and bypass oil filters of spin-on type
Intake air compression system
– Turbocharger
Cooling system
– Cooler with expansion tank
– Water-cooled line-type intercooler (TWD)
Air-cooled intercooler (TAD)
Electrical system
– 24V electric system with generator (60A) with
charging sensor