Torque Limits; Special Repairing Materials - Echo CS-3700ES Service Data

4

1-3 Torque limits

Descriptions
Starter Starter pawl
system
Starter case
Ignition Magneto rotor (Flywheel)
system
Ignition coil
Spark plug
Fuel Carburettor
system
Intake bellows
Clutch Clutch hub
Engine Crankcase
Engine mount
Muffler
Others Auto-oiler
Front handle
Cushion
Brake lever (Hand guard)
Chain catcher
Guide bar
Regular bolt, nut, and screw
LM: Left-hand thread
†
The torque differences among four bolts should not exceed 20 kgf• cm (2N• m, 17in•lbf) on one cylinder or
crankcase.

1-4 Special repairing materials

Material
Adhesive
Liquid gasket
Thread locking sealant
Grease
SERVICE INFORMATION
Size
M 5*
M 4
M 8
M 5
M 14
M 5
M 5
LM 10
†
M 5*
M 5
M 5
M 4
M 5**
Front M 5
Rear M 4
M 5
M 5**
M 8
M 3
M 4
M 5
M 6
*Apply thread locking sealant (See below)
Location
Ball bearing outer / crankcase
Cushion (Small : 4pcs)
Crankcase seams
Starter pawl screws
Auto-oiler worm
Clutch needle bearing
Rear handle cushion
Rewind spring
Starter center shaft
Chain brake (metal contact part)
kgf•cm
40 - 60
10 - 20
200 - 240 20 - 24
50 - 75 5.0 - 7.5
150 - 170 15 - 17
25 - 35 2.5 - 3.5
30 - 45 3.0 - 4.5
300 - 400 30 - 40
70 - 110
70 - 110
70 - 100
15 - 25 1.5 - 2.5
45 - 65 4.5 - 6.5
30 - 40
35 - 50 3.5 - 5
25 - 45 2.5 - 4.5
20 - 40
200 - 230 20 - 23
6 - 10 0.6 - 1
15 - 25 1.5 - 2.5
25 - 45 2.5 - 4.5
45 - 75 4.5 - 7.5
** Tapping screw
Loctite #675 or equivalent
Loctite #424 or equivalent
Loctite #515 or equivalent
Loctite #242, ThreeBond 1324 or equivalent
Lithium based grease
Molybdenum grease (approx. 1 gram)
CS-3700ES
CS-4200ES
N•m in•lbf
4 - 6 35 - 50
1 - 2 9 - 18
175 - 210
45 - 65
130 - 150
22 - 30
26 - 40
260 - 350
7 - 11 60 - 95
7 - 11 60 - 95
7 - 10 60 - 90
13 - 22
40 - 55
3 - 4 26 - 35
30 - 45
22 - 40
2 - 4 18 - 35
175 - 200
5 - 9
13 - 22
22 - 40
40 - 65
Remarks