Mechanical System

Operation Components And Function

COMPONENTS OPERATION AND FUNCTION CHART

Operating Element	Symbol	Function
Under drive clutch	UD	Connect input shaft and under drive sun gear
Reverse clutch	REV	Connect input shaft and reverse sun gear
Overdrive clutch	OD	Connect input shaft and over drive carrier
Low & Reverse brake	LR	Hold LR annulus gear and OD carrier
Second brake	2ND	Hold reverse sun gear
One way clutch	OWC	Restrict the rotating direction of low & reverse annulus gear

Fig 1: Identifying Automatic Transaxle System Operation Components

Courtesy of HYUNDAI MOTOR CO.

Operating Elements

OPERATING ELEMENTS

	UD/C	OD/C	REV/C	2ND/B	LR/B	OWC
P					•
R			•		•
N					•
D1	•				•	◦
D2	•			•
D3	•	•
D4		•		•
O: OWC is operated when shifts from 1st gear to 2nd gear. L&R brake is released in 1st gear when the vehicle speed is more than 5KPH approximately.