Removing, Sharpening And Balancing The Blade - Global garden products 72 Serie Kundendienst Handbuch

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4.10.
AND BALANCING THE BLADE
4.10 REMOVING, SHARPENING
AND BALANCING THE BLADE
A badly sharpened blade causes grass to
become yellow and reduces grass collection
capability. If not balanced, excessive vibration
can be caused during use.
Always wear protective gloves when handling
the blade and protect eyes when sharpening.
A) Removing and reassembling
For removing a blade it must be firmly held and the
central screw (1) undone.
On assembly, be careful to:
– correctly position the keys (3) on the shafts;
– correctly locate the blade, with the fins facing
towards the inside of the plate;
– fit the flexible disc (4) so that the concave part is
pressing against the knife;
– tighten the screw (1) with a torque wrench set to
45-50 Nm.
B) Sharpening and balancing
Always sharpen both cutting edges of the blade (2)
using a medium grade grinder. Sharpening must
only be done from the rounded side, removing as
little as possible.
The blade is to be replaced when the cutting edge
has worn down to 10 mm.
Using the appropriate equipment, check the bal-
ance to make sure that there is a maximum differ-
ence of 1 gram between one side and the other.
Tightening torque
1 Screw for blade .............................. 45 ÷ 50 Nm
© by GLOBAL GARDEN PRODUCTS
WORKSHOP MANUAL
- REMOVING, SHARPENING
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