Echo CS-660EVL Service Information

3
CS-440EVL CS-510EVL
CS-550EVL CS-660EVL
SERVICE INFORMATION
1-3-2 Service limits
References
CS-440EVL
I
CS-510EVL
I
CS-550EVL
CS-660EVL
A
Cylinder bore
When plating is worn and aluminum can be seen.
B
Piston outer diameter
Min.
41.89 mm
41.89 mm 43.90mm
(1.649 in)
I
( 1.649 in)
I
(1.728in)
46.90 mm
(1.846 in)
c
Piston pin bore
Max.
10.027 mm
(0.395 in)
12.027 mm
(0.474 in)
D
Piston ring groove
Max.
1.6 mm (0.063 in)
E
Piston ring side clearance
Max.
0.1 mm (0.004 in)
F
Piston pin outer diameter
Min.
9.98 mm
(0.393 in)
11.98 mm
(0.472 in)
G
Piston ring width
Min.
1.45 mm (0.057 in)
H
Piston ring end gap
Max.
0.05 mm (0.002 in)
K
Connecting rod small end bore
Max.
14.025 mm
(0.5522 in)
15.025 mm
(0.5915 in)
L
Crankshaft runout
Max.
0.05 mm (0.004 in)
M
Clutch drum bore
Max.
71.50 mm 79.0 mm
(2.815 in)
I
(3.110in)
N
Sprocket bore
Max.
14.08 mm (0.554 in)
p
Sprocket teeth wear limit
Max.
1.00 mm (0.040 in)
1-4 Torque tables
1-4-1 Special fasteners
MODEL
CS-440EVL
CS-510EVL, CS-550EVL
CS-660EVL
Description
Size
kg-em
in-lb
Size
kg-em
in-lb
Size
kg-em
in-lb
Crankcase
M5
BD-90
7D-80
M5
85-95
75-80
M5
8()-90
7()-80
Cylinder
M5
8D-90
7D-80
M5
85-95
75-80
M5
8D-90
7D-80
Carburetor insulator
M5
35-40
3D-35
M5
35-40
3()-35
M5
35-40
3()-45
Carburetor
M5
35-40
3()-35
M5
35-40
3()-35
M5
35-40
3D-35
Clutch hub
LM12
20()-240
175-210
LM12
20D-240
175-210
LM12
20()-240
175-210
Clutch drum
LMB
20()-240
175-210
LM8
20()-240
175-210
LMB
20D-240
175-210
Flywheel
M8
20()-240
175-210
M10
33()-370
285-320
M10
33D-370
285-320
Ignition coil
M4
2D-25
17-22
M4
2()-25
17-22
M4
2D-25
17-22
CDI module
M5
5D-60
45-50
M4
35-45
3()-40
M5
75-85
65-75
Spark plug
M14
15D-170
13()-150
M14
15()-170
13D-150
M14
15()-170
13()-150
Starter pawl
M5*
35-45
3()-40
M5*
35-45
3D-40
M5*
75-85
65-75
Fan cover
M5
75-85
65-75
M5
75-85
65-75
M5
75-85
65-75
Muffler
M5
8()-100
7D-90
M5
BD-100
7D-90
M5
BD-100
7D-90
Cushion
M5
5D-60
45-50
M5
5D-60
45-50
M5
5D-60
45-50
Guide bar
M6
9()-110
8D-95
M8
20D-240
175-210
MB
20()-240
175-210
1-4-2 Standard fasteners
* Apply thread locking sealant when fastening.
Standard fasteners other than those listed above should be tightened with the proper tools to the speci-
field
torques tabulated below.
Regular screws, bolts, or nuts
Size
kg-em
in-lb
M3
6-9
5-8
M4
13-18
11- 16
M5
27-32
23-28
M6
45-65
40-55
M8
110- 150
95- 130
M10
260-310
255-270

Echo CS-660EVL Specifications

General

Brand	Echo
Model	CS-660EVL
Category	Chainsaw
Language	English