Mazda X-5. Manual - part 71

 

  Index      Mazda     Mazda X-5 - service repair manual 2006 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  69  70  71  72   ..

 

 

Mazda X-5. Manual - part 71

 

 

MANUAL TRANSMISSION [M15M-D]

05–11A–3

05–11A

TRIPLE SYNCHRONIZER MECHANISM STRUCTURE [M15M-D]

E5U051100000N14

Features

• A triple cone synchronizer mechanism is used for the 1st and 2nd gears.

• The triple cone synchronizer mechanism is a compact device capable of heavy duty meshing.

• The synchro mechanism reduces meshing time and improves operation.

• The triple cone synchro mechanism includes a synchronizer ring, a double cone, and an inner cone.

Structure
Structural view

End Of Sie

SYNCHRONIZER RING

DOUBLE CONE

HUB SLEEVE

SYNCHRONIZER KEY

CLUTCH HUB

INNER CONE

2ND GEAR

SYNCHRONIZER KEY SPRING

E5U511AS5003

MANUAL TRANSMISSION [M15M-D]

05–11A–4

TRIPLE SYNCHRONIZER MECHANISM OPERATION [M15M-D]

E5U051100000N15

1. When the hub sleeve moves to the left (in the 

direction of the arrow), the synchronizer key 
presses against the synchronizer ring.

2. As the hub sleeve continues moving to the left, 

the key causes friction between the synchronizer 
ring, double cone, and inner cone. The 
synchronizer ring turns only the distance that the 
key groove gap allows, aligning the teeth of the 
hub sleeve and the synchronizer ring. As the hub 
sleeve continues moving, the friction between the 
cones becomes greater, and the difference 
between the rotational speeds of the synchronizer 
ring, inner cone, and double cone (unified with the 
gear) gradually disappears.

3. The hub sleeve then moves up onto the 

synchronizer key and engages the synchronizer 
ring.

4. The hub sleeve then engages the synchro teeth 

of the gear to complete shifting.

End Of Sie

DOUBLE SYNCHRONIZER MECHANISM OUTLINE [M15M-D]

E5U051100000N19

• A linked, double-cone synchronizer mechanism has been adopted for 3rd gear.

• The double-cone synchronizer mechanism consists of a synchronizer ring, double-cone, and inner cone the 

same as a triple-cone synchronizer mechanism.

End Of Sie

DOUBLE SYNCHRONIZER MECHANISM CONSTRUCTION/OPERATION [M15M-D]

E5U051100000N20

• The basic construction of the double-cone synchronizer mechanism is the same as a triple-cone synchronizer 

mechanism except that the inner side of the inner cone is not used as a friction surface.

• The basic construction of the double-cone synchronizer mechanism is the same as a triple-cone synchronizer 

mechanism except that friction force is not generated because there is no contact surface between the inner 
cone and gear.

• For the double-cone synchronizer mechanism operation, refer to the triple-cone synchronizer mechanism. 

(See 05–11A–4 TRIPLE SYNCHRONIZER MECHANISM OPERATION [M15M-D].)

End Of Sie

SYNCHRONIZER KEY

CLUTCH HUB SLEEVE

SYNCHRONIZER RING

INNER CONE

DOUBLE CONE

E5U511AS5005

SYNCHRONIZER KEY

SYNCHRONIZER RING

KEY GROOVE

E5U511AS5006

CLUTCH HUB SLEEVE

SYNCHRONIZER RING

E5U511AS5007

SYNCHRO TEETH

E5U511AS5008

MANUAL TRANSMISSION [M15M-D]

05–11A–5

05–11A

SHIFT INTERLOCK MECHANISM FUNCTION [M15M-D]

E5U051100000N16

• This provides reliable double-engagement prevention.

End Of Sie

SHIFT INTERLOCK MECHANISM OPERATION [M15M-D]

E5U051100000N17

Structure

• During shifting, the shift rods, except for the one in operation, are locked in the neutral position by the interlock 

pins.

Operation
Neutral

• Because no shift rod is operated, the interlock 

pins are seated in the grooves.

1st/2nd shifting

• Movement of the 1st/2nd shift rod forces interlock 

pin A out of the 1st/2nd shift rod groove, and locks 
the 3rd/4th shift rod. Pin B, forced by pin A, 
pushes out pin C to lock the 5th/Reverse shift rod.

3rd/4th shifting

• Movement of the 3rd/4th shift rod forces out pins 

A and C, and locks the 1st/2nd and 5th/Reverse 
shift rods. Pin B does not affect the other pins or 
shift rods during 3rd/4th shifting.

5th/Reverse shifting

• When performing 5th/Reverse shifting, the 

interlock pins function the same way as in 1st/2nd 
shifting, except the pin movement order is in 
reverse, and the 3rd/4th and 1st/2nd shift rods are 
locked.

End Of Sie

INTERLOCK PINS

5TH/REVERSE SHIFT ROD

3RD/4TH SHIFT ROD

1ST/2ND SHIFT ROD

E5U511AS5009

A

B

C

5TH/REVERSE SHIFT ROD

3RD/4TH SHIFT ROD

1ST/2ND SHIFT ROD

E5U511AS5010

A

C

B

5TH/REVERSE SHIFT ROD

3RD/4TH SHIFT ROD

1ST/2ND SHIFT ROD

E5U511AS5011

C

A

B

5TH/REVERSE SHIFT ROD

3RD/4TH SHIFT ROD

1ST/2ND SHIFT ROD

E5U511AS5012

MANUAL TRANSMISSION [M15M-D]

05–11A–6

REVERSE LOCKOUT MECHANISM FUNCTION [M15M-D]

E5U051117570N03

• The reverse lockout mechanism prevents the driver from accidentally shifting into reverse gear when 

downshifting from 5th to 4th gear.

End Of Sie

REVERSE LOCKOUT MECHANISM CONSTRUCTION/OPERATION [M15M-D]

E5U051117570N04

• A cam-type reverse lockout mechanism is adopted to ensure reliability.

• A cam, which is installed to the shift guide plate in the shift control case, restricts the selector movement to 

prevent the driver from miss shifting.

• When shifting into reverse, by shifting the selector back into the neutral position once and then shifting to the 

5th/reverse direction, the selector pushes the cam outward to release the shifting restriction, and shifting into 
reverse is made possible.

Shift guide component operation

End Of Sie

SHIFTING DIRECTLY FROM 5TH INTO REVERSE

RESTRICTION RELEASED

SHIFTING INTO REVERSE AFTER SHIFTING INTO NEUTRAL

RESTRICTS MOVEMENT

3RD

SELECTOR

4TH

NEUTRAL

REVERSE

5TH

SELECTOR

5TH

REVERSE

NEUTRAL

E5U511AS5004

 

 

 

 

 

 

 

Content   ..  69  70  71  72   ..