Baoli CPCD 80 - Drive Unit; General Description

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2. Drive unit
Drive unit consists of torque converter and a hydraulic transmission. The structure
of the hydraulic transmission refers to Fig.2-1, the structure of the torque converter
refers to Fig.2-2.
Main technical parameter
Item
Parameter
Torque
converter
Type
3-element,1-stage,2-phase type
Torque converter ratio
12.5″(Φ315) ratio 3.1
Pressure setting
Mpa
0.5~0.7
Charging
pump
Type
Inner-mesh gear type
Flow rate (l/min)
40 (2000rpm, 2Mpa)
Transmission
Type
Power-shift constant mesh
Shift NO.
Apiece 2 Fwd/Bwd
Gear ration
Ⅰ:1.621 / Ⅱ:0.526
Clutch
Friction piece
mm
O.D.Φ134 / I.D.Φ90 / T.2.8
Surface area
cm
2
77.4
Pressure
Mpa
1.2~1.5
Weight (kg)
295
Oil amount (l)
20
Oil type
NO.6 torque converter oil/ SAE10W
2.1 General description
The power-shift transmission mounted on the forklift truck has excellent features as
follows:
(1) An inching valve provides the machine with improved inching performance. Due
to this valve, the lift truck is allowed to perform inching operation regardless of whether
the engine is at low RPM or at high RPM, and when the truck is started up.
(2) As clutch plates, seven steel plates and the same number of composite plates
subjected to special treatment are provided so that improved durability can be ensured.
(3) Both one-way overrun clutches in the torque converter are used to increase the
efficiency for power transmission.
(4) High quality of oil filters is helpful to increasing the life of the torque converter.