Geely Emgrand X7. Manual part — 290

3.4.1.3 Size parameter specification

Specification

Dimensional parameter

Metric（mm） English

system(in×10-3)

Input shaft 3rd speed gear axial clearance

0.1～0.35

3.937 ~13.780

Input shaft 5th speed gear axial clearance

0.1～0.50

3.937~19.685

Input shaft 4th speed , 5th speed gear radial clearance

0.058

≦

2.146

≦

Input shaft 4th speed gear axial clearance

0.1～0.55 3.937～21.654

Input shaft run out

0.03

≦

1.181

≦

Distance synchronous ring back and gear end-face

0.8

≧

31.496

≧

Distance between gear bushing and shift fork

0.35

≦

13.780

≦

Min.diameter under the input shaft worn condition

33.985 and 30.985

1337.989 and 1219.879

Gear axial clearance of main shaft 1st speed and 2nd

speed

0.1～0.35 3.937～13.780

Gear radial runout of main shaft 1st speed and 2nd

speed

0.056

≦

2.205

≦

main bearing radial runout

0.03

≦

1.181

≦

Worn condition of main shaft:Min,diameter

33.985

1337.989

Distance from shift gear cove oil(sideward) seal end

-face to oil seal hole end-face

2.0～2.5 78.740～98.425

Distance from shift gear cove oil(upper side) seal end

-face to oil seal hole end-face

0～0.5 0～19.685

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3.4.2 Description and operation

3.4.2.1 Transmission system and operated description

Warning: in the course of diagnosis and maintenance, it is necessary to strictly comply with the safety and
normative operation standard in order to avoid from personal injury and vehicle damage. See Warning for
lifting vehicle and warning for road test in warning and precaution . During maintenance of disassembling
the transmission, a special tool for repairing the transmission must be used for prevented dust from mixing;
therefore, not only the maintenance efficiency and quality can be improved, but also the vehicle is
prevented from unnecessary damage.

The transmission is manual constant mesh 5the speed all synchronizer transmission

Control gears as shown in figure:

1

3

5

2

4

R

FE03-2001b

Basic part included:

z Transmission housing

z Gear ring and differential assembly

z Shift control mechanism

z Input shaft

z Input shaft gear

z Main shaft

z Main shaft gear

Shift control mechanism

The shift control mechanism selects the shift fork shaft through moving the shift pin of the shift control
mechanism up and down via the shift operation mechanism and selects the gear to be put into through moving left
and right. Prevent out-of-gear through the self-locking bolt of the shift shaft. An interlocking pin is installed
among the fifth reverse gear fork shaft and the first and 2nd speed fork shaft as well as among the 5th speed
reverse gear fork shaft and the third and fourth gear fork shaft to prevent from putting into two gears at the same
time; thereby ensuring the normal operation of the transmission.

1160

Forward gear

The implementation of the forward gear is completed in combination with a group of shift sliding fork that
controls the synchronizer with a lock ring.

Reverse gear

The Reverse gear is not synchronized, and a sliding idle gear is adopted; when putting into the Reverse gear, the
sliding idle gear is engaged with the input shaft revering gear and the main shaft reversing output gear at the same
time; the input torque is transmitted to the main shaft to output; and the steering of the main shaft is reverse to that
of the main shaft put into the forward gear, thereby reversing the vehicle.

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3.4.3 System operating principle

3.4.3.1 System operating principle

z Operating principle of gearshift

It is unable to meet of requiring the vehicle has fairly large traction and speed change in a complicated service
condition because the variation range of the engine output torque and revolution speed is narrower. The function
of the transmission is to change the transmission ratio of the output torque and RPM of the engine to widen the
variation range of the torque and RPM of the driving wheel so as to adapt to frequently changing service
conditions.

The transmission of the vehicle is a manual five-speed two-axis transmission, including five forward gears,
reverse gear and neutral. The shift control mechanism is controlled by the shift lever and pushes the fork shaft and
the fork to engage the gear synchronizer to be selected and the gear synchronously; the input shaft torque and the
speed are transmitted to the spindle and are transfer to the differential through the spindle; and the half shaft and
the wheels are driven.

1. Idle working status: gearshifting control mechanism doesn't push fork shaft and shifting yoke. Synchronizer

and gear engagement are synchronous. Reversing idle wheel doesn't arrange with input shaft reversing gear
and main shaft output gear. main shaft has not torque and speed output.

FE03-2002b

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