Specifications

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Fig. 2.7 Hydraulic circulation system
2.7 Principle
The torque converter consists primarily of a pump wheel connected to the input
shaft, a turbine wheel connected to the output shaft, and a stator wheel fixed to the
housing.
The transmission consists of charging pump, hydraulic clutch, the forward gear
and reverse gear.
Power transmission route from the torque converter to the transmission is as
follows: Turbine wheel — main shaft — clutch drum — steel plate — clutch
plate—forward or reverse gear—output shaft.
2.8 Caution when the trouble occurs
When the truck cannot run by itself due to trouble and it must be dragged with
another machine, be sure to observe the following requirements.
(1) Remove the propeller shaft between the transmission and the differential.
(2) Set the shift lever in neutral position.
When the charging pump does not operate, normal lubrication is not performed.
Therefore, if rotation is transmitted from the front wheel to the transmission gear and
clutch disk, seizure may occur.