Geely EC718, EC718RV, EC715, EC715RV. Manual part

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Geely EC718, EC718RV, EC715, EC715RV. Manual part - 249

3. 3rd/4th Gear and 5th/Reverse Installation Sleeve
4. Interlocking Pin
5. 3rd/4th Gear Fork Shaft
6. 3rd/4th Gear Fork
7. 3rd/4th Gear Fork Retaining Screw
8. 3rd/4th Gear Shaft Rear Snap Ring
9. 5th/Reverse Gear Shaft Front Snap Ring
10. 5th/Reverse Gear Shift Fork
11. 5th/Reverse Gear Installation Sleeve
12. 5th Fork Springs
13. Interlocking Pin

14. 5th/Reverse Gear Shaft Rear Snap Ring
15. 5th Fork
16. 1st/2nd Gear Fork
17. 1st/2nd Gear Fork Retaining Screw
18. 1st/2nd Gear Installation Sleeve
19. 1st/2nd Gear Fork Shaft
20. 1st/2nd Gear Fork Shaft Snap Ring
21. Transmission Rear Case
22. Gear Shaft Self-Locking Bolt

Transmission / Drive Axle

Manual Transmission

3-39

3.3.6 Schematic
3.3.6.1 Reverse Switch, Vehicle Speed Sensor
Circuit Schematic

ECM

BCM

IF14

EF12

MAIN

IG2

EN01

IP02

SO40

IP29

SO41

SO37

EN01

Main Relay

Vehicle Speed
Sensor

Instrument
Cluster

Rear
Parking
Radar
Module

Right
Rear
Braking
Light

Left
Rear
Braking
Light
(Sedan)

Rear Parking Switch

Battery

FE03-2018b

3-40

Manual Transmission

Transmission / Drive Axle

3.3.7 Diagnostic Information and Procedures
3.3.7.1 Diagnosis Description

Refer to

3.3.2

Description and Operation

get familiar with the contents of system functions and operation before start system

diagnostic, so that it will help to determine the correct diagnostic steps, more importantly, it will also help to determine whether the
customer described the situation is normal.

3.3.7.2 Visual Inspection

Transmission common malfunctions are: hard to shift, gear stuck, gear collision and grinding noise other abnormal sound. The
clutch, drive system malfunction can also cause the above symptoms. During the service, we need carefully analyze and distinguish.

1. Prior to transmission repair, carry out the clutch general inspection:

A. Check transmission, clutch pipe for fluid leaking.

B. Check the transmission fluid level, transmission fluid viscosity and color, check for dirt and metal debris. Determine whether

there have been internal components stuck, burning or broken.

C. Check transmission and the surrounding components. Check for bolts and nuts loose or falling off.

D. Road test and engage gears to confirm the vehicle conditions for further diagnostic.

2. Before repair the transmission abnormal sound, distinguish the clutch, drive shaft, and the engine abnormal sound,
and exclude the external factors that may generate abnormal sound and noise.

3. Before repair the transmission abnormal sound, identify the following items:

A. Road Noise

Such as tires, road, wheel bearings, engine and exhaust system generated noise. The noise varies due to vehicle size, type and
body insulation materials, etc..

B. Drive Shaft System Noise

Drive shaft system as a mechanical device, can not be without sound during the operation. There will be some sound during the
operation. Confirm the abnormal noise:

a. Choose a good road surface in order to reduce tires friction and body vibration generated noise.

b. Drive a distance long enough to completely warm up the lubricant.

c. Record speed and transmission gear when the noise occurs.

d. Stop vehicle and shut down the engine, whether there is abnormal sound.

e. Determine whether there is noise when driving the vehicle in the following conditions:

I. Slow acceleration or sudden acceleration.

II. On a even road, keep the throttle slightly open and maintain constant speed when driving.

III. Transmission is put in gear and the throttle closed when cruising.

C. Bearing Noise

a. Differential Gear or Bearing Noise

Differential bearings noise and the wheel bearing noise is likely to be mixed up. As the differential bearings have a pre-load
force, even if the wheels leave the road, as long as the differential and drive shaft are in operation, the differential bearings
noise will not be significantly reduced.

Transmission / Drive Axle

Manual Transmission

3-41

b. Wheel Bearing Noise

When the transmission is in neutral gear and the vehicle is sliding, the wheel bearing issue a continuous roar or friction sound.
Since there is no wheel bearing pre-load force, when the wheels leave the ground the wheel bearing noise will be significantly
reduced.

D. Bearing internal wear, deformation, indentation in bearing ring, micro-abrasive entering into the bearing and its seat ring, foreign

matter entering into the bearing and the seat ring is locked, bearing and its seat ring due to wear and tear become loose, these
will have the noise and thus make the system not work properly.

3.3.7.3 Hard to Shift

The following table shows the location the fault may occur, check each component, if necessary, replace these them.

Symptoms

Suspected Parts

Refer to

Hard to shift

1. Clutch

Clutch system

3.2.5

Diagnostic Information and

Procedures

2. Transmission Gearshift Lever