Published by Hyundai Motor company, september 2005 MC (Accent) Transaxle Transaxle A/T, M/T

2 Introduction Power-train Line up

3 A4AF3M5CFxA4CFx – DOM. Only with U-1.5 Introduction

4 A/T (A4AF3) Specification *: For Israel with 1.4L (MC 3Door, TB F/L):

5 Technical Highlights - Bosch PCM located in engine room (Gasoline only) For EngineFor A/T A/T (A4AF3)

6 Technical Highlights - Momentary type O/D OFF switch A/T (A4AF3)

SubjectTechnical Highlights MC-TA Target Audience Instructors at OTC, RTC, Distributors Field technicians Objectives Understand the change of O/D OFF control Instructor notes The momentary type over drive off switch is applied in MC. In the previous system (Push/Pull type switch), the O/D off function was kept even though the ignition key is turned off and on again. It may result the inconvenience because the driver will find the O/D OFF lamp turns on when he starts the engine if he pressed the switch at once before. Adopting the momentary type switch, the O/D OFF function will be reset to not operated whenever the ignition key is off. (O/D OFF lamp is directly driven by TCM.) Current circuit MC Material requires Training Slide, Textbook Time 5 minutes

8 Technical Highlights - Separated PG-A and PG-B connector Lead wire type (PG-B) A/T (A4AF3)

SubjectTechnical HighlightsMC-TA Target Audience Instructors at OTC, RTC, Distributors Field technicians Objectives Understand the change of PG-B connector Instructor notes To improve the durability against the heat and vibration, PG-B has been changed from the Lead wire type to Connector type as shown on the below figure. Also the connectors for PG-A and PG-B have been separated to reduce the signal noise. (In the case of PG-A, still lead wire type is being applied) This also will be applied on TB F/L (Planning). Material requires Training Slide, Textbook Time 5 minutes

10 Technical Highlights - Hi scan Pro current data Newly added information for SCSVGear ratio: P, N (0.00) / R (2.18) 1 st (2.85) / 2 nd (1.58) 3 rd (1.00) / 4 th (0.69) A/T (A4AF3)

11 Technical Highlights - Hi scan Pro current data Lock-up is engaged from 3 rd gear at D-range. A/T (A4AF3)

12 Application MakerVehicleEngineM/TRemarks HMC FCU-1.5 M5CF2 XDU-1.5 MC U-1.5 α-IIM5CF1 TBU-1.5M5CF2 α-II : 1.4L, 1.6L Applied vehicle for M6CFx : TBD M5CF3: for U-1.6L (XD, HD) M/T (M5/6CFx)

13 Section view (M5CFx) Spacer M5/6CF1 :1 st,2 nd gear double cone synchronizer (Carbon ring) M5/6CF2 :1 st,2 nd Triple cone synchronizer T/M case Clutch housing Output shaft Differential Input shaft M/T (M5/6CFx)

14 Section view (M6CFx) 6 th speed gear M5/6CF1 :1 st,2 nd gear double cone synchronizer (Carbon ring) M5/6CF2 :1 st,2 nd Triple cone synchronizer T/M case Clutch housing Output shaft Differential Input shaft M/T (M5/6CFx)

15 Technical Highlight Common use for 5 speed and 6 speed transaxle (M5CFx, M6CFx) Key & Ball type synchronizer applied. Multiple synchronizer cone applied. (M5/6CF2 Triple (1,2), Double(3-5) cone synchronizer) Shift control assembly module Two pieces of transaxle case Interference fitting method applied on the output shaft (3 rd, 4 th, 5 th speed gear only ) Poppet ball bearing assembly applied (control finger and shift rail) Optimized gear teeth profile for lower gear whine noise Grinding with Honing process for NVH and efficiency (2, 3, 4 th output gear, Final gear) Reinforced case structure M/T (M5/6CFx)

16 Specification ItemsM5/6CF1M5/6CF2M5AF3M5BF2 * Max. Torque (kg.m) Gear5 th / 6 th 5 th Length (mm) Case+HSG Shaft distance (mm) I/P O/P O/P DIFF I/P DIFF 189 Case type2 pcs.3 pcs. Clutch typePush Push/Pull Shift Control TypeCable Rails3333 SYNC. T/CONE-1 st, 2 nd -- D/CONE1 st, 2 nd, 3 rd 3 rd ~ 6 th 1 st, 2 nd REVERSESingle SYNC. Durability250,000 km200,000 km Applied Engine α-,Υ, U-1.1 β-II, U-1.5 α-, εα-, β-II, D-1.5 * M5EF2 (for MX) : 12.5 kg.m M/T (M5/6CFx)

17 ModelEngine Gear Ratio 12345RFGR M5CF1 1.4L L M5CF2U Gear Gear ratio * HMC MC M/T (M5/6CFx)

18 Neutral switch (DSL only) Control finger (Forward/Backward) Shift lever Selector lever B/Up lamp switch Plastic shoe Shift control assembly module For better shift feeling and quality M/T (M5/6CFx)

19 Reverse gear shifting device Detent pin Control finger (Backward) Detent spring Control finger (Forward) Reverse gear selection For lower vibration while reverse shifting Single synchronizer and control mechanism for lower noise and vibration M/T (M5/6CFx)

20 * M5/6CF1 : 1 st & 2 nd Double cone (Carbon ring) synchronizer applied. (Higher synchronizing capacity by 30% than single cone) * M5/6CF2 : 1 st & 2 nd Triple cone synchronizer applied. (Higher synchronizing capacity by 40% than double cone) Double cone synchronizer system Triple cone synchronizer assembly Synchronizer sleeve Hub Double cone synchronizer assembly Speed gear 3 rd ~ 6 th : Double cone synchronizer applied. Higher synchronizing capacity by 20% than single cone Synchronizer system Triple cone synchronizer system M/T (M5/6CFx)

21 M5/6CFxM5AF3, M5BF2 Section Operation Rolling/Sliding bearing Best shift feeling Rolling bearing Medium level shift feeling Application VW Golf, Audi A6, Benz A190, Toyoda Camry HMC : LC, XD KMC : LD Poppet ball structure M/T (M5/6CFx)

22 WEIGHT DAMPER M/T (M5/6CFx)

23 M5CF1 M/T (M5/6CFx)

24 M5CF2 M/T (M5/6CFx)

25 Gear train Input shaft Output shaft Ball bearing Taper roller bearing 3 rd gear4 th gear5 th gear Interference fitting M/T (M5/6CFx)

26 Input shaft Both sides have three grooves and it is symmetric (no direction) : 3 rd -4 th synchronizer hub 3 rd speed gear 3 rd -4 th synchronizer sleeve (caution to direction) 4 th speed gear 5 th speed gear Caution to direction See next page. 5 th -(6 th )synchronizer sleeve (caution to direction) Spacer (M5CFx only) - M5/6CF1 - M/T (M5/6CFx)

27 Input shaft Front (engine) side (three grooves)Rear side (two grooves) - M5/6CF1 - M/T (M5/6CFx)

28 Output shaft - M5/6CF1 - 1 st speed gear D/cone with carbon ring (1 st speed only) Caution to direction See next page. 2 nd speed gear 3 rd speed gear 4 th speed gear 5 th speed gear Spacer (M5CFx only) 3 rd, 4 th and 5 th speed gear must be heated to assemble. M/T (M5/6CFx)

29 Output shaft - M5/6CF1 - Front (engine) side (three grooves) Rear side (four grooves) M/T (M5/6CFx)

30 Output shaft -It is required to heat the 5 th, 4 th and 3 rd gear for disassembly or reassembly because these gears are assembled by interference fit method. 5 th gear 4 th gear 3 rd gear Heating gun M/T (M5/6CFx)