RT45 Operator’s Manual Service - 147
Recommended Lubricants/Service Key
Tier 4 Engine
The Deutz Tier 4 D2.9 L4 engine uses a computer-controlled fuel management system and diesel
oxidation catalytic converter (DOC).
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, contact your Ditch Witch
®
dealer.
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 Coolant” on page 146.
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