Zetor 3320, 3340, 4320, 4340, 5201, 5320, 6340 Factory Workshop Manual

This 267-page, 1990s-era workshop publication serves as the official reference for the Zetor 3320 through 6340 tractor series. It provides the internal specifications and assembly layouts required for engine and power train maintenance.

• Covers the Zetor 3320, 3340, 4320, 4340, 5201, 5320, 6340, 7201, and 7701 series, including both naturally aspirated and turbocharged configurations
• Original OEM documentation focusing on mechanical and power train systems
• Features 101 exploded-view diagrams illustrating component assembly and sub-assembly hierarchies

Component and System Overview

This manual details the mechanical architecture of the Zetor lineup. The content starts with the engine assembly, giving you a clear look at the cylinder head, crankshaft components, oil pump lubrication circuits, and internal valve-gear mechanisms. Subsequent chapters outline the power train configurations. These sections detail the transmission shifting mechanisms, synchromesh clutches, and the torque multiplier assembly. You will also find detailed schematics for the final drive, rear axle, front driving axle, steering, and braking systems.

Specifications and Reference Values

Technical specifications document performance parameters across the entire engine range. This covers displacement metrics, injection sequences, and rated idle speeds. For engine top-end work, the manual provides detailed piston sorting identification data and cylinder liner clearance ranges. Cooling system specifications outline radiator and thermostat removal protocols, alongside electrical coolant heater data.

The documentation includes exact torque values for major fasteners. For instance, cylinder head nuts require 167–187 Nm, while crankshaft pulley nuts are set at 245 Nm. Reference data for the injection sets provides precise RPM and volume benchmarks for tuning the injection pump drive. Please note that while this description outlines the manual's contents, proper shop safety dictates referencing the full factory documentation before beginning any heavy machinery maintenance.