Chery QQ6 (QR513 Transmission Case). Service Instruction — part 1

Service Instruction for Chery

QQ6

(QR513 Transmission Case)

After Sales Service Department of Chery

Automobile Sales Co., Ltd

1

CONTENTS

Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 2

Chapter One Introduction of QR513 Transmission. . . . . . . . . . . . . . . . . . . . . . ... 3

I. Assembly Drawing of QR513 Transmission. . . . . . . . . . . . . . . . . . . . . . .. 3

II. Driving Characteristics of QR513 Transmission . . . . . . . . . . . . . . . . . . . . .. 4

III. SN of QR513 Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1. Print position of SN of QR513 transmission. . . . . . . . . . . . . . . . . . . . . 4

2. Composition and connotation of SN of QR513 transmission . . . . . . . . . . . . . ... 4

IV. Specification of QR513 Transmission . . . . . . . . . . . . . . . . . . . . . . . . . 6

V. Maintenance Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 7

Chapter Two Decomposition of QR513 Transmission. . . . . . . . . . . . . . . . . . . . . .. 8

I. Decomposition Process for QR513 Transmission . . . . . . . . . . . . . . . . . . . . . 8

1. Bleeding lubricant in transmission . . . . . . . . . . . . . . . . . . . . . . . . 8

2. Disassembly of external parts of transmission . . . . . . . . . . . . . . . . . . . .. 8

3. Separation of gear shift mechanism and transmission. . . . . . . . . . . . . . . . ... 9

4. Disassembly of the connecting bolts for clutch and transmission housings. . . . . . . . 10

5. Separation of transmission and clutch housings. . . . . . . . . . . . . . . . . . .. 10

6. Separation of interior transmission parts and fork module from the housing . . . . . . . . 11

7. Separation of differential assembly and clutch housing . . . . . . . . . . . . . . . .. 12

8. Disassembly of gearshift fork mechanism . . . . . . . . . . . . . . . . . . . . .. 12

9. Disassembly of gearshift mechanism . . . . . . . . . . . . . . . . . . . . . . .. 13

10. Disassembly of input shaft . . . . . . . . . . . . . . . . . . . . . . . . . . 13

11. Disassembly of output shaft . . . . . . . . . . . . . . . . . . . . . . . . . .. 15

12. Disassembly of differential . . . . . . . . . . . . . . . . . . . . . . . . . ... 15

13. Disassembly of release mechanism of clutch . . . . . . . . . . . . . . . . . . . 16

14. Disassembly of transmission housing . . . . . . . . . . . . . . . . . . . . . ... 17

Chapter Three Assembly and Regulation of QR513 Transmission . . . . . . . . . . . . . . . . . 18

I. Assembly of QR513 Transmission. . . . . . . . . . . . . . . . . . . . . . . . . ... 18

1. Assembly of differential assembly . . . . . . . . . . . . . . . . . . . . . . . .. 18

2. Assembly of clutch housing . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3. Assembly of transmission housing . . . . . . . . . . . . . . . . . . . . . . . .. 23

4. Assembly of gearshift mechanism assembly. . . . . . . . . . . . . . . . . . . ... 23

5. Assembly of gearshift fork assembly . . . . . . . . . . . . . . . . . . . . . . .. 24

6. Regulation and assembly of input shaft assembly. . . . . . . . . . . . . . . . . ... 24

7. Regulation and assembly of output shaft assembly. . . . . . . . . . . . . . . . . . 26

8. Assembly and regulation of transmission assembly . . . . . . . . . . . . . . . . . 28

9. Disassembly of external accessories of transmission . . . . . . . . . . . . . . . . .. 31

10. Refilling and volume regulation of transmission lubricant . . . . . . . . . . . . . ... 32

II. Tightening Torque Table for Fasteners . . . . . . . . . . . . . . . . . . . . . . . ... 34

Chapter Four

General Failures and Troubleshooting. . . . . . . . . . . . . . . . . . ... 35

2

Foreword

1. This service instruction applies to use and maintenance of QR513 transmission

manufactured by Chery Automobile Co., Ltd.

2. Service Instruction for QR513 Transmission describes relations among various

parts and assemblies of this transmission, which provide the maintenance

personnel with a reference when maintaining and repairing QR513 transmission.

3. Due to restrictions of the compiler’s level and other conditions, errors and

imperfections may exist in this service instruction. During maintenance and use,

please inform us of any problem in and improvement idea on QR513

transmission and this service instruction, so that we can correct and perfect this

service instruction, for which we express our thanks herein.

3

Chapter One Introduction of QR513 Transmission

I. Assembly Drawing of QR513 Transmission

1 2

3 4

1. Input shaft

2. Clutch

3. Output shaft

4. Differential

4

II. Driving Characteristics of QR513 Transmission

This transmission achieves five forward gears and one reverse gear through three groups of

synchronizers and two shafts-input shaft and output shaft; all forward gears adopt conventional engagement

system while reverse gear adopts a gliding idler device. The synchronizers of the first and second gears are

installed on output shaft while the synchronizers of the third, fourth and fifth gears are installed on input

shaft. When the transmission is shifted to various gears, these synchronizers will engage with corresponding

gear hub to enable transmission of power, and then the driving gear of main decelerator will drive the driven

gear of main decelerator and differential assembly to rotate, which will drive the drive shaft to drive the

wheels to rotate.

III. SN of QR513 Transmission

1. Print position of SN of QR513 transmission

The print position of SN of QR513 series transmission is as shown in the figure:

2. Composition and connotation of SN of QR513 transmission

SN of QR513 series transmission is consisted of model and leaving factory number of the transmission case.

Position of number

5

1) Model of the transmission case

Model of the transmission case is composed of code QR, number of shift gears of the transmission,

maximum transmission torque, characteristic code and structure specification number.

A complete transmission case model is as follows:

□ □ ○ ○○ □ □ □

Structure specification number

Characteristic code

Maximum transmission torque (kg·m)

Number of shift gears of the transmission case

Code QR

Among which, ○ indicates an Arabic numeral while □ indicates a letter.

2) Leaving factory number

Leaving factory number is composed of endnote of assembly part number (for that without endnote, us

AA), character code of the year of production, character code of the month of production, sequence

number of this transmission case among the transmission cases manufactured in that month and start

stop sign “*”. See Table 1 and Table 2 for check list of character codes of the year and of the month.

Complete form of leaving factory number of a transmission case is as follows:

*

□ □

□

□

○○○○○ *

Character code of the month

Among which, ○ indicates an Arabic numeral, □ indicates a letter and indicates an Arabic numeral or a

letter. The endnote locates at tail end of the part code, for a fundamental model, no endnote. The endnote

should be modified when modification is made to structure, dimension, material, heat treatment requirements

and surface treatment etc. of the part or assembly on the basis of original product. The English letter in the

code should be upper case letter (use in sequence with “A” as the first), in order to avoid confusion, do not

use “I”, “O” and “X”. When the modification does not affect interchangeability, use “A” as the first; when

the modification affects interchangeability, skip “A”, use “B” as the first.

Table 1 Character Codes Indicating the Years

Year

Code

Year

Code

1999

X

2015

F

2000

Y

2016

G

2001

1

2017

H

2002

2

2018

J

2003

3

2019

K

Sequence number among the product of the
same model manufactured in that month

Character code of the year

Endnote of assembly part number

6

2004

4

2020

L

2005

5

2021

M

2006

6

2022

N

2007

7

2023

P

2008

8

2024

R

2009

9

2025

S

2010

A

2026

T

2011

B

2027

V

2012

C

2028

W

2013

D

2029

X

2014

E

2030

Y

Table 2 Character Codes Indicating the Months

Month

Code

Month

Code

January

A

July

G

February

B

August

H

March

C

September

J

April

D

October

K

May

E

November

L

June

F

December

M

3) Illustration

For example: QR513MHA MH5H00001 indicates the first transmission case with the model as

QR513MHA manufactured in August, 2005.

IV. Specification of QR513 Transmission

QR513 Series Transmission

Type

Machine Gear Mesh

Model

QR513MHA

QR513MHB

Gear shift

Velocity

Ratio

Teeth Ratio

Velocity

Ratio

Teeth Ratio

First Gear

3.545

39/11

3.167

38/12

Second Gear

2.05

41/20

2.05

41/20

Third Gear

1.423

37/26

1.423

37/26

Fourth Gear

1.065

33/31

1.065

33/31

Fifth Gear

0.865

32/37

0.865

32/37

Reverse Gear

3.364

37/11

3.364

37/11

Main reduction ratio

4.056

73/18

75

16

7

Speedometer

0.806

29/36

0.806

29/36

Largest input torque

130 Nm

Lubricant oil type

GL-4 75W-90

Volume of lubricant

1.8L

V. Maintenance Instruction

l In order to ensure maintenance quality of the transmission, when operating, please be careful

and ensure cleanness of each part of the transmission.

l Use appropriate tools or special tools.
l Strictly follow the specification to assembly or adjustment to maintain so as to ensure that the

transmission can accomplish a favorable working position.

8

Chapter Two Decomposition of QR513 Transmission

I. Decomposition Process for QR513 Transmission

1. Bleeding lubricant in transmission

First, drive the vehicle onto a maintenance platform or hoist the vehicle and keep it on a horizontal

plane, screw off the bleeding plug as shown by the arrowhead, and then use a clean container to

accommodate lubricant of the transmission to completely bleed the lubricant in the transmission.

Figure 1

2. Disassembly of external parts of transmission

Switch the transmission to NEUTRAL position; use an appropriate tool to remove the locating seat of

the fork shaft as shown in Figure 2; Connecting bolts for gearshift housing and transmission housing and the

screws for backup lamp switch and idler shaft.

9

Screws for idle gear shaft

Bolts-for gearshift housing and Backup lamp switch assembly

Transmission housing (5)

Figure 2

3. Separation of gear shift mechanism and transmission

Remove the gearshift mechanism assembly from the place as shown in Figure 3; as a result of sealant,

the disassembly process may be difficult, so, use such tools as a hand hammer etc. to knock on the bulge at

flank of housing of the gearshift mechanism, and then take out the whole gearshift mechanism assembly

until the two housings completely separate; remember to be slow when taking out the gearshift mechanism

assembly, so as to prevent the return spring as shown in the figure from dropping out inside the transmission;

during disassembly, be careful not to damage the junction planes of the two housings, so as to avoid oil leak

after re-assembly.

Gearshift mechanism assembly

Locating seat of fork shaft

for all gears (3)

Assembly of locating

seat of fork shaft

Return spring (remember to prevent

it from dropping out)

10

Figure 3

4. Disassembly of the connecting bolts for clutch and transmission housings

Use a tool to remove the connecting bolts for transmission and clutch housings as shown in Figure 4.

Remember to remove the bolts both inside and outside the clutch housing when disassembling, and a sleeve

with long connecting rod is required when removing the bolts inside the clutch.

Connecting bolts for transmission and clutch housings

Figure 4

5. Separation of transmission and clutch housings

After the bolts for transmission and clutch housings are removed, separate clutch housing and

transmission housing (Figure 5). as a result of sealant, the separation process may be difficult, so, use such

tools as a hand hammer etc. to knock on the bulge at flank of housing of the transmission, and then take out

the whole transmission housing until the two housings completely separate; during disassembly, be careful

not to damage the junction planes of the two housings, so as to avoid oil leak of the transmission after

re-assembly.

11

Transmission housing

Clutch housing

Figure 5

6. Separation of interior transmission parts and fork module from the housing

After transmission housing and clutch housing are separated, keep the clutch housing flat at the place as

shown in Figure 6, remove the bolts for bracket of reverse gear rocker arm, take out the reverse gear rocker

arm assembly and the pin on idler drive, and then take out input shaft, output shaft and fork mechanism

together (when taking out, gently shake, meanwhile, press the driven gear of main decelerator along the

direction of arrowhead as shown in the figure to take out the assembly of input shaft, output shaft and idler

as well as fork mechanism); when taking out, remember to avoid interference between bearing retainer of

output shaft and big gear ring of differential and prevent the bearing retainer from damage.

Bolts for reverse gear rocker arm bracket (2 in total)

Reverse gear rocker arm

Reverse gear idler assembly

Figure 6

12

7. Separation of differential assembly and clutch housing

Separate differential assembly and clutch housing, and then simply take out the differential assembly as

shown in Figure 7.

Differential Assembly

Figure 7

8. Disassembly of gearshift fork mechanism

Use a hammer and a special tool to knock off all spring pins and then use a snap ring pliers or other

special tool to take the split washer off the fork shaft (when taking off the split washer, prevent it from

deformation), and then disassemble each part of the gearshift mechanism.

Split washer Spring pin

13

Figure 8

9. Disassembly of gearshift mechanism

As shown in Figure 9, remove the gearshift arm bracket bolts and reverse gear lockup mechanism bolts

first, use a hammer and a special tool to knock off all spring pins, use a special tool to remove the split

washer, and then disassemble each part of the gearshift mechanism.

Gearshift arm bracket bolts (2 in total)

Reverse gear lockup mechanism bolts (2 in total)

Split washer

Figure 9

10. Disassembly of input shaft

As shown in Figure 10, Use a special tool (such as bearing remover etc.) to remove the two bearings on

the input shaft first, use a special tool to remove the rear snap ring, and then take off the fifth gear

synchronizer assembly.

14

Rear snap ring

Fifth gear synchronizer

Figure 10

After the fifth gear synchronizer assembly is removed, remove the remaining parts such as shift gears,

needle bearings and synchronizers in turn as shown in Figure 11; when disassembling, be sure to keep the

synchronizer of each gear concurrent with its corresponding synchronizer ring.

Figure 11

Bearing (when disassembling, be

careful and use a special tool)

15

11. Disassembly of output shaft

The method and process for disassembly of output shaft are basically the same as those for input

shaft and the output shaft can be disassembled to the status as shown in Figure 12.

Figure 12

12. Disassembly of differential

As shown in Figure 13, use a special tool to take off the two bearings first, remove the bolts for driven

gear and differential housing, remove the driven gear, knock off the fixing pin of the planetary gear, and then

take out every part inside the differential (Figure 14).

Fixing pin of planetary gear Bolts for driven gear and differential housing (8 in total)

Figure 13