Ditch Witch RT120 Q - Manual (Page 149)

Service - 148
RT120Q Operator’s Manual
Tier 4i Engine
Tier 4i Engine
The Deutz Tier 4i TCD 3.6 L4 engine uses a computer-controlled fuel management system, turbocharger
with charge air cooling, and exhaust after treatment system (EAT). The engine and the corresponding EAT
system are adapted to each other and linked by an appropriate electronic controller.
The diesel oxidation catalytic converter behind the cylinder head at the rear of the engine is a very
recognizable feature. A crankcase breather is located on top of the left side of engine.
Diagnostic and maintenance work may only be carried out by authorized personnel using equipment
approved by Deutz.
Deutz control units are equipped with self-diagnostics. Active and passive error codes are saved in the
error memory. Active errors are displayed on the electronic display panel or error lamp (flash code) CAN
bus. If error codes are recorded, call Product Support.
NOTICE: Diesel engines that are equipped with an exhaust after treatment system (EAT) may only be
operated with an ultra low sulfur diesel fuel. See “Approved Fuel” on page 151.