Chery QQ6 (SQR473F Engine-Mechanical). Service Instruction — part 1
Service Instruction for Chery
QQ6
(SQR473F Engine-Mechanical)
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CONTENTS
Chapter One Introduction of Characteristics . . . . . . . . . 4
I. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 4
II. Number Position of the Engine . . . . . . . . . . . . . . . . . . . . . . . 4
III. Connotation of Engine Number . . . . . . . . . . . . . . . . . . . . . . .. 4
Chapter Two Specification . . . . . . . . . . . . . . . ... 6
I. Engine Type and Major Parameters. . . . . . . . . . . . . . . . . . . . . ... 6
II. Major Maintenance Parameters of Engine . . . . . . . . . . . . . . . . . . ... 7
III. Primary Fit Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
IV. Engine Primary Tightening Torque Table . . . . . . . . . . . . . . . . . . . 10
V. The Parts where Lubrication are Required during Assembly of Engine. . . . . . . . 13
VI. The Parts where Rubber Coating are Required during Assembly of Engine . . . . . 15
Chapter Three Special Tools . . . . . . . . . . . . . . .. 16
I. Connotation of Special Tool Number . . . . . . . . . . . . . . . . . . . . .. 16
II. Special Tools Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chapter Four Measurement of Cylinder Pressure. . . . . . ... 20
I. Detection of Cylinder Pressure. . . . . . . . . . . . . . . . . . . . . . . 20
1. Measuring process . . . . . . . . . . . . . . . . . . . . . . . . . .. 20
2. Judgment of cylinder pressure value. . . . . . . . . . . . . . . . . . ... 21
Chapter Five Disassembly of Power-assisted Steering System. ... 22
I. Disassembly Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 22
II. Overhaul. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
III. Installation of the Steering Pump . . . . . . . . . . . . . . . . . . . . . .. 23
Chapter Six Disassembly of A/C Compressor . . . . . . . . 24
II. Overhaul of Compressor . . . . . . . . . . . . . . . . . . . . . . . . . 25
III. Installation procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter Seven Disassembly of Generator . . . . . . . . . .. 25
I. Disassembly Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 25
II. Overhaul of Generator. . . . . . . . . . . . . . . . . . . . . . . . . . 26
III. Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . ... 26
Chapter Eight Replacement of Engine Timing Belt. . . . . . 27
I. Disassembly Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 27
II. Installation of Timing Belt . . . . . . . . . . . . . . . . . . . . . . . . . 29
III. Adjustment of Timing (general overhaul) . . . . . . . . . . . . . . . . . . . 30
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Chapter One Introduction of Characteristics
I. Overview
SQR473F engine is one of the ACTECO series engines that are jointly designed and developed by
Chery company and AVL-a world famous engine design company. This engine adopts such
advanced technologies as overhead double camshaft structure, 4 air valves, electronic throttle
body and electronic accelerator pedal etc. In terms of such mandatory standard indexes as
emission and noise, this engine is outdoes national standard and has reached overseas advanced
stage.
II. Number Position of the Engine
Number of the engine locates at right side of oil filter
where bearing shell cover and cylinder block join.
III. Connotation of Engine Number
Each engine has a unique number, from which you can know some characteristics and information
of the engine. Engine model should conform to requirements in GB725 and is consisted of
enterprise code, number of cylinders of the engine, bore, characteristic code and specification
code.
A complete engine model is as follows:
□□□ ○ ○○ □ □
Among which, ○ indicates an Arabic numeral while □ indicates a letter.
The enterprise code is stipulated as SQR;
Number of cylinders of engine is a 1-2 digit integer;
Characteristic code
Cylinder bore
Specification code
Number of cylinders
Enterprise code
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The bore refers to diameter of cylinder sleeve, which is specified by a 2-3 digit integer with the
decimal part rounded and millimeter as unit.
Characteristic code: indicates the most basic characteristics of an engine and is specified by 1 digit
upper case English letter.
Specification code: specified by 1 digit upper case English letter, which is used as an additional
distinguish code when distinguish is required in case structure, principal parameter or oil supply
mode etc. has changed (for example, the stroke of engine has changed or the engine is a dual fuel
engine) with number of cylinders, bore and characteristic code of the engine unchanged. For
changes of peripheral parts of the engine (such as intake and exhaust manifolds), the engine model
will keep unchanged, and engine assembly number will be changed for distinguish. Among the
engines of the same series, the specification code will be used with “B” as the first (among which,
do not use such letters as “I”, “O”, “Q”, “X” and “Z”). The default specification code for the first
fundamental structure is “A”, which is omitted. The specification also can quote the characteristic
code to express specific characteristics.
Position of engine model
The engine model should be printed at an obvious part on engine cylinder block and please
see provisions in Assembly and Regulation Instruction of Engine for the specific position.
Leaving factory number of engine is composed of characteristic code of engine, EFI manufacturer
code, character code of the year of production, character code of the month of production,
sequence number of this engine among the engines of this model manufactured in that month and
start stop sign “*”. Complete form of leaving factory number of a engine 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 characteristic code of engine should conform to above provision.
EFI system manufacturers: C-Motorola; D-Marelli; E-Delphi; F-UAES; G-Siemens; H-Troitec;
B-Bosch
EFI system manufacturer code
SN among the volume of
production of the current month
Character code of the year
Characteristic code
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Chapter Two Specification
I. Engine Type and Major Parameters
Basic Parameters
Item
SQR473
SQR473H
SQR473F
No.
Type
Vertical type, 4 cylinder, water cooling, 4
stroke, in-line double overhead camshaft,
controlled burn rate, variable valve timing
Vertical type, 4 cylinder, water
cooling, 4 stroke, in-line double
overhead camshaft
1
Model
SQR473H
SQR473F
2
Fuel Supply Mode
Multi point electric control gasoline injection
3
Cylinder Diameter
(mm)
73.0
4
Piston Stroke (mm)
77.5
5
Working volume
(L)
1.297
6
Compression Ratio
10.0
7
Type of
Combustion
Chamber
Ridge type
8
Ignition Sequence
1-3-4-2
9
Fuel Designation
(not less than)
93# lead-free gasoline
10
Volume of Engine
Oil (L)
3.5 (new engine oil filter)
11
Engine Oil
Designation
SAE10W-40 (grade SJ or above)
12
Crankshaft
Rotational
Direction
Clockwise (see from engine belt)
13
Starting Mode
Electric starting
14
Cooling Mode
Mandatory circulating antifreeze cooling
15
Lubricating Mode
Combined type (pressure and splash lubrication)
16
Net Mass (kg)
105
100
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Crank Angle with
Intake Valve
Opening as 1mm
(°)
400
369
Crank Angle at
1mm before Intake
Valve Closing (°)
610
569
Crank Angle with
Exhaust Valve
Opening as 1mm
(°)
200
140
17
Crank Angle at
1mm before
Exhaust Valve
Closing (°)
390
350
18
Ignition Advance
Angle (°CA)
12±5
12±5
19
Cylinder
Compression
Pressure (MPa)
(200~300r/min)
1.00~1.35
20
Overall Dimension
(length×width×height)
613×507×734
21
Electronic fuel
injection system
UAES
II. Major Maintenance Parameters of Engine
No.
Name
Dimension and tolerance
Fit clearance
1
473 engine cylinder hole
φ73.005±0.005
2
Piston skirt of 473 engine
φ72.965±0.009
0.04
Main bearing saddle width of cylinder
19.5
0
-0.05
Thickness of thrust plate
2.4
+0.05
0
3
Crankshaft main journal
24.5
+0.015
-0.030
0.07~0.265
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No.
Name
Dimension and tolerance
Fit clearance
Thickness of connecting rod big end
22
0
-0.1
4
Width of crankshaft connecting rod journal
22
+0.30
+0.15
0.15~0.4
First piston ring groove height
1.2
+0.05
+0.03
5
Top compression ring height
1.2
-0.005
-0.03
0.035~0.08
Second piston ring groove height
1.5
+0.04
+0.02
6
Second compression ring height
1.5
-0.005
-0.030
0.025~0.07
piston oil ring groove height
2.5
+0.03
+0.01
Blade height of steel strip composite type oil ring
0.46±0.02
7
Bracing spring height of steel strip composite type oil
ring
1.5±0.03
0.02~0.18
8
Crankshaft key groove width
014
.
0
010
.
0
5
+
−
9
Diameter of crankshaft front oil seal
Φ36
0
-0.1
10
Diameter of crankshaft rear oil seal
Φ75
0
-0.1
Outside diameter of engine oil dipstick tube
0
1
.
0
7
.
16
−
φ
11
Diameter of cylinder block scale tube orifice
043
.
0
0
7
.
16
+
φ
Diameter of cylinder head valve guide orifice
φ6+0.015
Outside diameter of valve guide
φ11x6
12
Diameter of cylinder head valve guide bottom orifice
φ11H7
-0.022~
-0.050
Outside diameter of intake valve stem
φ5.98±0.008
13
Diameter of cylinder head intake valve guide orifice
φ6+0.015
+0.012~
+0.043
Exhaust valve stem diameter
φ5.96±0.008
14
Diameter of cylinder head exhaust valve guide orifice
φ6+0.015
+0.032~
+0.063
Diameter of camshaft first journal
( )
050
.
0
066
.
0
6
32
−
−
e
φ
15
Diameter of cylinder head first bearing hole
+0.050~
+0.090
Diameter of camshaft second journal
( )
040
.
0
053
.
0
6
24
−
−
e
φ
16
Diameter of cylinder head second bearing hole
( )
021
.
0
0
7
24
+
H
φ
+0.040~
+0.074
17
Diameter of camshaft third journal
( )
040
.
0
053
.
0
6
24
−
−
e
φ
+0.040~
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No.
Name
Dimension and tolerance
Fit clearance
Diameter of cylinder head third bearing hole
( )
021
.
0
0
7
24
+
H
φ
+0.074
Diameter of camshaft fourth journal
( )
040
.
0
053
.
0
6
24
−
−
e
φ
18
Diameter of cylinder head fourth bearing hole
( )
021
.
0
0
7
24
+
H
φ
+0.040~
+0.074
Diameter of camshaft fifth journal
( )
040
.
0
053
.
0
6
24
−
−
e
φ
19
Diameter of cylinder head fifth bearing hole
( )
021
.
0
0
7
24
+
H
φ
+0.040~
+0.074
20
Camshaft thrust groove width
( )
025
.
0
0
7
65
.
30
+
H
+0.15~+0.20
Outside diameter of camshaft oil seal
4
.
0
2
.
0
50
+
+
φ
21
Diameter of cylinder head oil seal hole
( )
025
.
0
0
7
50
+
H
φ
-0.005~
-0.40
Diameter of cylinder head jib hole
( )
024
.
0
006
.
0
7
12
+
+
G
φ
22
Outside diameter of hydraulic jib
φ12-0.011
+0.006~
+0.035
Diameter of crankshaft timing gear segment
Φ28f7
23
Bore diameter of crankshaft timing gear
φ28+0.030
Key groove dimension of crankshaft timing gear
5
+
0.030
Key groove width of crankshaft gear
5
+
0.030
24
Semicircular key width
5
0
-0.030
0~0.06
25
Bore diameter of crankshaft pulley
φ74
+0.046
26
Outside diameter of timing gear
φ74
-0.05
-0.08
0.096~0.126
III. Primary Fit Clearance
Name
Fit Clearance
Axial clearance of crankshaft
0.07~0.265mm
Axial Clearance of Camshaft
0.15~0.20mm
Axial clearance of connecting rod
0.15~0.4mm
Fit clearance of connecting rod bearing
0.023~0.058mm
Fit clearance of main bearing
0.035~0.075mm
Fit clearance between intake valve stem and valve
0.012~0.043mm
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guide
Fit clearance between exhaust valve stem and valve
guide
0.032~0.063mm
Fit clearance between hydraulic jib and cylinder
head hole
0.006~0.035mm
IV. Engine Primary Tightening Torque Table
Multiple steps tightening (torque +
angle)
No.
Connection part
Part name
Bolt
(thread specification)
Number
of bolts/
gaskets
(piece)
Tightening
torque
Nm (primary
tightening)
First step
tightening
torque (Nm)
Second step
angle (°)
Third step
angle (°)
1
Cylinder block main oil passage
screw plug 1
Hexagonal socket head
plug
M18×1.5
2
20+5
——
——
——
2
Cylinder block main oil passage
screw plug 2
Hexagonal socket head
plug
M10×1.5
1
20±3
——
——
——
3
Main bearing cap
Hexagon bolt
M11×1.5
4
——
45±5
180±10
——
4
Main bearing cap
Hexagon bolt
M11×1.5X92.5
6
——
45±5
180±10
——
5
Framework-cylinder block
Hexagon bolt
M8×1.25×55
10
20+3
——
——
——
6
Knock sensor-cylinder block
Hexagonal flange bolt
M8×1.25×35
1
20+0.5
——
——
——
7
Connecting rod cap-connecting
rod body
Hexagon bolt
M8×1
8
——
25±3
90±5
——
8
Oil pump assembly-cylinder
block
Hexagon bolt
M6×35
4
8+3
——
——
——
9
Engine oil collector bracket,
separator-framework
Hexagonal flange bolt
M6×12
9
8+3
——
——
——
10
Bleeding plug-oil pan
Hexagon bolt
M16×1.5
1
25±3
——
——
——
11
Oil pan-framework
Hexagonal flange bolt
M7×20
18
15+3
——
——
——
12
Oil pan-framework
Hexagonal flange bolt
M7×35
3
15+3
——
——
——
13
Oil pan-framework
Hexagonal flange bolt
M7×90
4
15+3
——
——
——
14
Water pump-cylinder block
Hexagon bolt
M6×25
5
8+3
——
——
——
15
Cylinder head oil passage
throttle bolt
Hexagon throttle bolt
M14×1.5
2
15+3
——
——
——
16
Camshaft bearing cap-cylinder
head
Locating bolt
M6×1×30
18
9.5±1.5
——
——
——
17
Camshaft bearing cap-cylinder
head
Hexagonal flange bolt
M6×1x30
2
9.5±1.5
——
——
——
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Multiple steps tightening (torque +
angle)
No.
Connection part
Part name
Bolt
(thread specification)
Number
of bolts/
gaskets
(piece)
Tightening
torque
Nm (primary
tightening)
First step
tightening
torque (Nm)
Second step
angle (°)
Third step
angle (°)
18
Phaser control valve-first
camshaft cap
Inner hexagonal bolt
M6×1×15
2
8+3
——
——
——
19
Cylinder head-cylinder block
Inner hexagonal bolt
M10×1.5
10
——
50±5
20
Valve cover assembly-cylinder
head
Damping unit-valve
cover
M6×1×30
12
8+3
——
——
——
21
Camshaft position sensor-valve
cover
Inner hexagonal bolt
M6×1×15
2
8+0.5
——
——
——
22
Hanger-cylinder head
Hexagonal flange bolt
M8×14
2
20+5
——
——
——
23
Rear housing of timing
gear-cylinder head
Cross head screw
M5×15
6
5+2
——
——
——
Phaser-camshaft
Inner TORX hollow bolt
M12×1.25
2
120±5
——
——
——
24
Timing gear-camshaft
Bolt
M12×1.25
2
120±5
——
——
——
25
Inlet cam phaser cap-inlet cam
phaser
Hexagon bolt
1
30
——
——
——
26
Exhaust cam phaser cap-exhaust
cam phaser
Inner TORX bolt
1
30
——
——
——
27
Oil filter assembly-oil filter seat
Screw sleeve
M20×1.5
1
25±3
——
——
——
29
Oil filter joint
M20×1.5
1
25±3
——
——
——
30
Oil filter seat-cylinder block
Inner hexagonal bolt
M8×25
3
20+5
——
——
——
31
Oil pressure switch-oil filter
M14×1.25×12
(13×13)
1
12±2
——
——
——
32
Thermostat assembly-cylinder
head
Hexagon bolt
M6×60
3
8+3
——
——
——
33
Thermostat cover-thermostat
case
Hexagonal flange bolt
M6×20
4
8+3
——
——
——
34
Coolant senser-thermostat shell
M12×1.5
1
20+5
——
——
——
35
Crankshaft timing
gear-crankshaft
Hexagonal flange bolt
M13×1.5
1
——
130±10
65±5
——
36
Crankshaft pulley-crankshaft
timing gear
Hexagonal flange bolt
M8×1×15
6
——
25±5
30±5
——
37
Flywheel-crankshaft
Hexagonal flange bolt
M8×1.25
8
——
15±5
30±5
——
38
Signal wheel-flywheel
Hexagon bolt
M8×1.25
6
8±2
——
——
——
39
Timing belt-tensioner
assembly-cylinder block
Hexagonal flange bolt
M8×55
1
27±3
——
——
——
40
Timing belt-idler
assembly-cylinder head
Hexagonal flange bolt
M10×60
1
40+5
——
——
——
41
Bulkhead-crankshaft locating
pin hole
Hexagonal flange bolt
M16×1.5
1
25±3
——
——
——
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Multiple steps tightening (torque +
angle)
No.
Connection part
Part name
Bolt
(thread specification)
Number
of bolts/
gaskets
(piece)
Tightening
torque
Nm (primary
tightening)
First step
tightening
torque (Nm)
Second step
angle (°)
Third step
angle (°)
42
Front lower cover of timing
gear-engine
Hexagonal flange bolt
M6×24
5
8+3
——
——
——
43
Front upper cover of timing
gear-engine
Inner hexagonal bolt
M6×30
1
8+3
——
——
——
44
Front upper cover of timing
gear-engine
Hexagon bolt
M6×16
4
8+3
——
——
——
45
Air compressor
bracket-cylinder block
Hexagonal flange bolt
M8×25
1
10+3
——
——
——
46
Air compressor bracket-cylinder
block
Hexagonal flange bolt
M8×65
3
30+3
——
——
——
47
Power steering pump-steering
pump bracket
Hexagonal flange bolt
M8×125
1
20+5
——
——
——
48
Power steering pump-steering
pump bracket
Hexagonal flange bolt
M8×25
1
20+5
——
——
——
49
Power steering pump-steering
pump bracket
Hexagonal flange bolt
M8×80
1
20+5
——
——
——
50
A/C compressor assembly-air
compressor bracket
Hexagonal flange bolt
M8×100
1
20+5
——
——
——
51
Air compressor assembly-air
compressor bracket
Hexagonal flange bolt 1
M8×30
1
20+5
——
——
——
52
Generator assembly-generator
bracket
Hexagonal flange bolt
M10×90
1
30+5
——
——
——
53
Generator lower
bracket-cylinder block
Hexagonal flange bolt
M10×45
2
40+5
——
——
——
54
Ignition coil assembly-bracket
Hexagon bolt
M6×1×50
4
8+3
——
——
——
55
Spark plug-cylinder head
Hexagon bolt
M14×1.25
4
30+3
——
——
——
56
Intake manifold-cylinder head
Stud bolt
M6×1×25
9
3+2
——
——
——
57
Intake manifold-cylinder head
Hexagon nut
M6
9
8+3
——
——
——
58
Delivery pipe assembly-air
intake pipe
Hexagonal flange bolt
M6×20
2
8+3
——
——
——
59
Throttle body assembly-air
intake pipe
Hexagon bolt
M6×1×50
4
8+3
——
——
——
60
Bracket-air intake pipe
Hexagon bolt
M8×30
2
20+5
——
——
——
61
Bracket-air intake pipe
Hexagonal flange bolt
M8×40
2
20+5
——
——
——
62
Engine oil dipstick tube-air
compressor bracket
Inner hexagonal bolt
M6×16
1
8+3
——
——
——
63
Engine oil dipstick
tube-framework
Hexagon bolt
M6×16
1
8+3
——
——
——
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Multiple steps tightening (torque +
angle)
No.
Connection part
Part name
Bolt
(thread specification)
Number
of bolts/
gaskets
(piece)
Tightening
torque
Nm (primary
tightening)
First step
tightening
torque (Nm)
Second step
angle (°)
Third step
angle (°)
64
Exhaust manifold-cylinder head
Stud bolt
M8×1×46
9
12+3
——
——
——
65
Exhaust manifold-cylinder head
Hexagon nut
M8
9
20+5
——
——
——
66
Exhaust pipe thermal
shield-exhaust pipe
Hexagon bolt
M8×12
3
20+5
——
——
——
67
Oil return pipe bracket-cylinder
block
Hexagon bolt
M8×20
1
20+5
——
——
——
68
Oil return pipe hollow screw
M14×1.5
1
15+3
——
——
——
69
Bracket-oil-gas separator
Inner hexagonal bolt
M5×14
2
6+2
——
——
——
70
Bracket-oil-gas separator
Inner hexagonal bolt
M6×14
2
8+3
——
——
——
M4
2.5±0.5
——
——
——
M5
5±1.5
——
——
——
M6
8±3
——
——
——
M7
15±3
——
——
——
M8
20±5
——
——
——
85
Other
M10
40±5
——
——
——
V. The Parts where Lubrication are Required during Assembly of
Engine
No.
Lubrication parts
Type of lubricant
1
Piston pin and pin hole
SJ10W-40
2
Piston ring groove
SJ10W-40
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3
Connecting rod bearing shell and connecting
rod journal
SJ10W-40
4
Cylinder sleeve hole
SJ10W-40
5
Main bearing lining and crankshaft main
journal
SJ10W-40
6
Crankshaft thrust sheet (at oil groove side)
and thrust surface
SJ10W-40
7
Head and thread of connecting rod bolt
SJ10W-40
8
Head and root of main bearing cap bolt
SJ10W-40
9
Rear oil seal edge and crankshaft oil seal
journal
SJ10W-40
10
Head and root of cylinder head bolt
SJ10W-40
11
Valve guide orifice
SJ10W-40
12
Valve stem
SJ10W-40
13
Valve oil seal lip
SJ10W-40
14
Valve seat insert
SJ10W-40
15
Valve keeper ring groove
SJ10W-40
16
Cam and journal of camshaft
SJ10W-40
17
Camshaft bearing hole
SJ10W-40
18
External surface and base plane of hydraulic
jib
SJ10W-40
19
Hydraulic jib hole and valve rocker arm head
SJ10W-40
20
Outer ring of oil pump
SJ10W-40
21
Edge or journal of camshaft oil seal
SJ10W-40
22
Intake and exhaust phaser control valve
gaskets
SJ10W-40
23
Journal of intake and exhaust phaser
SJ10W-40
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VI. The Parts where Rubber Coating are Required during Assembly
of Engine
No.
Parts where rubber coating are required
Type of sealant
1
Cylinder block bowl plug
Loctite 648
2
Cylinder block main oil passage plug
Loctite 243
3
Junction plane of framework and cylinder
block
Loctite 515
4
Outer ring of crankshaft rear oil seal
Loctite 243
5
Framework and oil pan
Loctite 5910
6
Cylinder head bowl plug
Loctite 648
7
Main oil passage screw plug
Loctite 243
8
Base plane of first bearing cap
Loctite 574
9
Water temperature sensor
Loctite 243
10
Oil pressure switch
Loctite 243
11
Flywheel bolt
Loctite 243
12
Oil pan main oil passage plug
Loctite 243
13
Engine oil collector separator bolt
Loctite 243
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Chapter Three Special Tools
I. Connotation of Special Tool Number
In order to know or find the tool clearly according to parts number and improve maintenance
efficiency, special tools numbering is stipulated as follows:
□□□□□ ○ ○ ○ ○ □
□ indicates a letter ○ indicates an Arabic numeral
Nomenclature of the tool: for a standard part, please use the brand and model recommended by
Chery company as reference. For example, CH indicates a non standard part, which means it is a
special tool for repair of this part verified by After Sales Service Department of Chery Automobile
Sales Co., Ltd. HAZET indicates a standard tool produced by this company.
Connotation of system code corresponding to the tool:
Number
Position
1
Chassis
2
Engine
3
Transmission
4
Accessory
5
Body
Corresponding series number of tools: from 001 to 999.
Times of modifications of the tool:
Number
Modification
A
First modification
B
Second modification
C
Third modification
D
Fourth modification
Note: In alphabetical order. Bigger SN means more modification times.
For example: CH-1002A means it is the 2# special tool for repair of chassis system that has been
verified by After Sales Service Department of Chery Automobile Sales Co., Ltd., who commits
Please use the special tools that we designated to perform maintenance, otherwise it
will cause accident or damage the machine.
Maintemance times coresponding to tools
SN coresponding to tools
System code coresponding to tools
Tools name
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