Husqvarna ZTH6125 用户手册

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页码 73
English-
37
REPAIRS
assembly is supplied with an “O” ring (47) . 
The “O” ring must be removed before the 
pulley is fitted.
Replacing Bearings
The fitting procedure is the reverse of the 
removal procedure.
Tightening torques:
Blade bolts 122 Nm (90 lb/ft).
Pulley bolts 61 Nm (45 lb/ft).
Sharpening and Balancing Blades
 
Remove the blades. 
Check that the blades do not have cracks 
or any other damage. If they do, scrap 
them.
Clamp in a screw vice (see diagram) and 
file until sharp. 
Balancing is as follows: 
Fix a mandrel (for example) horizontally 
in a screw vice (see diagram).
Push a blade onto the mandrel and 
check that it is evenly balanced. The 
diagram shows a blade which needs 
adjusting. This blade should be ground at 
the edge indicated by the straight arrow. 
The fitting procerdure is the reverse of 
the removal procedure. 
The tightening torque for the blade bolts 
is 122 Nm (90 lb/ft).
6012-088
Grinding a blade
WARNING!
Blades with any cracking must 
not be used. Do not straighten 
a damaged blade if there is any 
danger of crack formation.
6012-089
Balancing a blade