Echo CS-3400 Service Data

1-6 Service limits
5K177 5K040B 5K025B 5K038B
5K043B 5K016 5K042 5K178
5K173 5K174 5K190 5K191
1
23
ABCD
EFGH
KLMP
N
Model CS-3000 CS-3050 CS-3400 CS-3450
A Cylinder bore When plating is worn and aluminum can be seen
B Piston outer diameter mm(in) Min. 36.91 (1.453) 38.91 (1.532)
C Piston pin bore mm(in) Max. 8.030 (0.3161)
D Piston ring groove mm(in) Max. 1.3 (0.051) 1.6 (0.063)
E Piston ring side clearance mm(in) Max. 0.15 (0.006) 0.1 (0.004)
F Piston pin outer diameter mm(in) Min. 7.98 (0.3142)
G Piston ring width mm(in) Min. 1.15 (0.045) 1.45 (0.571)
H Piston ring end gap mm(in) Max. 0.5 (0.02)
K Con-rod small end bore mm(in) Max. 11.025 (0.4341)
L Crankshaft runout mm(in) Max. 0.05 (0.002)
M Sprocket bore mm(in) Max. 13.08 (0.5150)
N Clutch drum bore mm(in) Max. 61.0 (2.40)
P Sprocket wear limit mm(in) Max. 0.5 (0.02)
5
SERVICE INFORMATION
CS-3000 CS-3050
CS-3400 CS-3450

Echo CS-3400 Specifications

General

Bar Length	16 inches
Power Output	1.6 kW
Engine Displacement	34.0 cc
Weight	4.0 kg
Chain Pitch	3/8 inch
Chain Gauge	0.050 inches