125000327 - INTRODUCTION - GEARBOX (Smart gearbox)

COMPOSITION

CONSTRUCTION

Five/six speed transverse gaerbox with two shafts supported by conical bearings and an additional shaft for Reverse gear with twin idler gears with synchromesh.The external controls have a twin cable.

STRUCTURE

The structure of the gearbox consists of:

• a gearbox casing with a ''closed end'' configuration with the rear cover eliminated. This contains and support the main and layshaft, the gear engagement selector forks and rods and the gear selector/engagement device.
• the bell housing which contains the clutch, the thrust bearing and the control device.

In addition to the ''whipping effect'', the gears are also lubricated by means of ducts inside the:

• clutch casing and gearbox casing;
• 3^rd and 4^th speed control rod;
• main shaft.

The improved lubrication of the ducts makes it possible to:

• improve the efficiency of the lubrication;
• reduce the amount of oil used thanks to the lubrication aimed at the main couplings.

The use of ZC 75 S synthetic multi-grade oil ensures improved manoeuvrability at low temperatures.1 - Main shaft2 - 5^th speed drive gear3 - 4^th speed drive gear4 - 3^rd speed drive gear5 - 2^nd speed drive gear6 - 1^st speed drive gear7 - Reverse speed drive gear8 - Layshaft9 - Satellite gears10 - Planet gears11 - Ring gear12 - Gearbox casing13 - Clutch casing14 - Differential support housing