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Ⅲ. Construction, Principle, Adjustment and Maintenance of Forklift
Trucks
1. Transmission System
1.1 General description
The transmission system consists of differential assembly and gearbox & axle
assembly. With direct connection of the drive gear and the drive motor, the travel speed of
the truck can be changed with the speed of the motor, and the travel direction can be
changed with the rotation direction of the motor.
1.2 Differential assembly
The differential is respectively installed on the main housing of the reducer casing
and spindle head assembly of the axle housing through bearings on both ends. The
differential housing of 1-2.5t truck is of integral type. The differential of 3-3.5t truck is of
right and left split type. The differentials include two half-shaft gears and two planet
gears. (See Fig. 1-1)
Fig. 1-1 Differential assembly
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