Ducar DUELT24-4, Инструкция по эксплуатации

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5.3 DISMANTLING
,
SHARPENING AND BALANCING THE BLADE
Check that the blade is sharpened properly and firmly fixed to the bracket.
– A badly sharpened blade pulls at the grass and causes the lawn to turn yellow.
– A loose blade causes unusual vibrations and can be dangerous.
All operations on the blade (dismantling, sharpening,
balancing, remounting and/or replacing) require a certain familiarity and
special tools. For safety reasons, go to a specialized centre if you do not
have the right tools or experience.
Sharpen the two cutting edges using a medium
grade grinding wheel and check the balance by
holding the blade up with a round Ø20 mm bar
inserted in the central hole.
Always replace the dam-
aged or bent blade; never try to repair it!
ALWAYS USE MANUFACTURER'S GEN-
UINE REPLACEMENT BLADES BEARING
THE SYMBOL ''SG 2072850'' !
!
WARNING!
!
WARNING!
5.4 R
EPLACING THE BELT
The belt replacement must be carried out at a Licensed Service Centre.
Replace the belts as soon as they show obvious signs of
wear! ALWAYS USE GENUINE REPLACEMENT BELTS!
NOTE
INSTRUCTION MANUAL
GB
To remove the blade, hold it firmly wearing
strong gloves and undo the central screw (1).
Ø 20 mm
1
To ensure that it works properly without
unusual vibrations any imbalance
between the two parts of the blade must
be below one gram.
When re-fitting the
blade, always follow the indicated
sequence, making sure that the
blade’s wings are facing towards the
interior of the cutting deck and that
the concave part of the cup spring
(1) is pressing against the blade.
Tighten the fixing screw (2) using a
torque wrench set to 40-45 Nm. If the
shaft hub (3) came off when disman-
tling the blade, make sure that the
key (4) is firmly in its right position.
!
WARNING!
1
2
1
2
4
3
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