Husqvarna ZTH5223, ZTH6125 manual Sharpening and Balancing Blades, Replacing Bearings

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
	WARNING!
	Blades with any cracking must
	not be used. Do not straighten
	a damaged blade if there is any
	danger of crack formation.
•	Remove the blades.
• Check that the blades do not have cracks		6012-088

or any other damage. If they do, scrap	Grinding a blade
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).	6012-089
	Balancing a blade

English-37