Geely EC718, EC718RV, EC715, EC715RV. Manual part — 249
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
57
32
ECM
BCM
IF14
22
19
5
2
3
1
EF12
MAIN
IG2
4
4
16
EN01
IP02
IP02
SO40
SO40
8
IP29
SO41
1
SO41
SO37
1
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
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Manual Transmission
Transmission / Drive Axle
3.3.7 Diagnostic Information and Procedures
3.3.7.1 Diagnosis Description
Refer to
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
.
2. Transmission Gearshift Lever
.
3. Transmission Shift Control Cable
.
4. Transmission Shift Control Assembly
Shift Control Assembly Replacement
Shift Control Assembly Disassemble
5. Faulty Gear or Synchronizer
Transmission Assembly Replacement
Shaft Disassemble and Assemble
shaft Disassemble and Assemble
Diagnostic Steps:
Step 1
Check the shift lever operation.
(a)
Shut down the engine.
(b)
Shift rod hard to engage or disengage gears.
No
Yes
Step 2
Check shifting force and shift control travel.
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Manual Transmission
Transmission / Drive Axle
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