clutch SSANGYONG KORANDO 2013 Workshop Manual

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1. SPECIFICATION
Unit Description Specification
PTU
(Power Transfer Unit)Gear ratio 2.929
Numbers of helical gear 22/39
Numbers of hypoid gear 23/38
Oil IDEMITSU LW 80W/90
Oil capacity
Operating temperature
E-coupling Maximum torque 1,000 Nm
Operating temperature
Numbers of main clutch Outer: 11, Inner: 11
Numbers of pilot clutch Outer: 4, Inner: 3
Coil windings 240 turns
Weight 8 kg
Oil ECF107 (ATF based EMCD special oil)
Oil capacity 0.145 L (145 ml)

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2. SYSTEM LAYOUT
1) Components
(1) PTU (Power Transfer Unit)
and transfer it to E-coupling to distribute the torque to rear wheels.
(2) E-Coupling (Electronic Coupling)
E-Coupling transfer the engine torque from PTU to rear axle and controls to distribute it between front
wheels and rear wheels.
(3) E-Coupling Control Unit (ECU)
E-Coupling controls the current (clutch engagement force) of EMCD in E-Coupling according to CAN
signals (wheel speed, engine torque, pedal position, ABS/ESP signals).
* EMCD: Electro-Magnetic Control Device PTU assemblyE-coupling control unit
(located on the floor under driver seat)E-coupling

Seat belt pretensioner deployment
Original status 1.
Pretensioner operating 2.
Load limiter operating 3.
Inflator PistonThe piston and pinion in the seat belt
pretensioner are disengaged and the tension of
the return spring in it holds the occupant.
When the ignition current is transmitted from the
air bag unit to the ignition device of the seat belt
pretensioner, gas is generated from the inflator
and this pushes up the piston.
When the piston gear engages with the pinion
gear, the clutch is integrated and winds the seat
belt.
When the load on the seat belt increases and the
inner device stars being deformed, the pinion
rotates in reverse direction and the piston moves
downward. The residual pressure is released
through the vent hole of the piston when the
piston moves down. The gears of pinion and
piston are disengaged when the piston is located
at the lowest position. Pinion