Echo SRM-420ES (L): SRM-420ES (U) User Manual

SERVICE INFORMATIONSRM-420ES
5
5K225 5K016 5K042
5K1895K219 5K220
5K246
5K245
5K223 5K2245K222
1-5 Service limits
ABCD
EFGH
KLM
Description
mm (in)
A Cylinder bore When plating is worn and aluminum can be seen
B
Piston outer diameter Min. 39. 91 (1.571)
C
Piston pin bore Max. 10. 035 (0.3951)
D
Piston ring groove Max. 1. 6 (0.063)
E
Piston ring side clearance Max. 0. 1 (0.004)
F
Piston pin outer diameter Min. 9. 98 (0.3929)
G
Piston ring width Min. 1. 45 (0.057)
H
Piston ring end gap Max. 0. 5 (0.02)
K
Con-rod small end bore Max. 13. 025 (0.5128)
L
Crankshaft runout Max. 0. 02 (0.001)
M
Clutch drum bore Max. 71. 5 (2.81)

Echo SRM-420ES (L): SRM-420ES (U) Specifications

General

Brand	Echo
Model	SRM-420ES (L): SRM-420ES (U)
Category	Trimmer
Language	English