Iveco N45, N67 Tier 3 NEF Series Engine Repair Manual

Iveco N45 , N67 Tier 3 NEF Series Engine Repair Manual

Manuals for repairs are split into Parts and Sections, each one of which is marked by a numeral; the contents of these sections
are indicated in the general table of contents.
The sections dealing with things mechanic introduce the specifications, tightening torque values, tool lists, assembly
detaching/reattaching operations, bench overhauling operations, diagnosis procedures and maintenance schedules.
The sections (or parts) of the electric/electronic system include the descriptions of the electric network and the assembly’s
electronic systems, wiring diagrams, electric features of components, component coding and the diagnosis procedures for the
control units peculiar to the electric system.
Section 1 describes the engine illustrating its features and working in general.
Section 2 describes the type of fuel feed.
Section 3 relates to the specific duty and is divided in four separate parts:
1. Mechanical part, related to the engine overhaul, limited to those components with different characteristics based on the
relating specific duty.
2. Electrical part, concerning wiring harness, electrical and electronic equipment with different characteristics based on the relating
specific duty.
3. Maintenance planning and specific overhaul.
4. Troubleshooting part dedicated to the operators who, being entitled to provide technical assistance, shall have simple and
direct instructions to identify the cause of the major inconveniences.
Sections 4 and 5 illustrate the overhaul operations of the engine overhaul on stand and the necessary equipment to execute
such operations.
The appendix contains a list of the general safety regulations to be respected by all installation and maintenance engineers in
order to prevent serious accidents taking place.
The manual uses proper symbols in its descriptions; the purpose of these symbols is to classify contained information. In particular,
there have been defined a set of symbols to classify warnings and a set for assistance operations.