Echo PB-255ES User Manual
Page 4
SERVICE INFORMATION
PB-251
PB-255ES
ES-255ES
4
1-3 Torque limits
Descriptions
Size
kgf•cm
N•m
in•lbf
Starter Starter pawl
M 8*
130 - 150
13 - 15
115 - 130
system
Starter case
M 5
40 - 55
4.0 - 5.5
35 - 50
Ignition Ignition coil
M 4
35 - 45
3.5 - 4.5
30 - 40
system
Spark plug
M 14
130 - 170
13 - 17
114 - 150
Fuel
Carburettor insulator
M 5
50 - 70
5 - 7
45 - 60
system
Carburettor
M 5
30 - 45
3 - 4.5
25 - 40
Engine Crankcase
M 5
70 - 110
7 - 11
60 - 95
Cylinder
M 5**
70 - 110
7 - 11
60 - 95
Cylinder cover
M 5
60 - 80
6 - 8
50 - 70
Cylinder cover with lead
M 5
40 - 60
4 - 6
35 - 50
Engine mount
M 4*
30 - 45
3 - 4.5
25 - 40
Muffl er
M 5
70 - 80
7 - 8
60 - 70
Muffl er cover
M 5*
30 - 45
3 - 4.5
25 - 40
Others Outer
fancase
M
5
†
20 - 40
2 - 4
17 - 35
Fan
M 8
140 - 160
14 - 16
120 - 140
Fan hub
M 8*
160 - 200
16 - 20
140 - 175
Regular bolt, nut and screw
M 3
6 - 10
0.6 - 1
5 - 9
M 4
15 - 25
1.5 - 2.5
13 - 22
M 5
25 - 45
2.5 - 4.5
22 - 40
M 6
45 - 75
4.5 - 7.5
40 - 65
M 8
110 - 150
11 - 15
95 - 130
1-4 Special repairing materials
Material
Location
Remarks
Thread locking sealant Engine mount
Loctite # 242, ThreeBond 1324 or equivalent
Fun hub
Starter pawl
Loctite # 222, ThreeBond 1342 or equivalent
Muffl er cover
Grease
Rewind spring
Lithium based grease or ECHO LUBE
TM
Starter centre shaft
* Apply thread locking sealant (See below)
** The torque differences among four bolts should not exceed 20 kgf•cm (N•m, 17in•lbf) on one cylinder or crank-
case.
†
Tapping screw