Viking MR 4082 Manuel D'utilisation page 99

Blade width:
Check the width of mowing blade (1) at the
point shown using a slide calliper. The
mowing blade must meet the minimum
blade width B.
B > 65 mm
Risk of injury!
If the specified wear limits are
reached or exceeded, the mowing
blade must be replaced for safety
reasons.
Removing the mowing blade
● Remove the mowing deck. (
● Lean the mowing deck against a wall
and secure against slipping.
0478 193 9902 A - EN
Loosen and remove the blade fastening
screw (1) using an A/F 17 spanner (not
included in standard equipment).
Remove the blade fastening screw (1)
together with retaining washer (2).
Remove the mowing blade.
Sharpening the mowing blade
Risk of injury!
Always wear safety glasses and
gloves when sharpening.
The following points must be observed
when re-sharpening mowing blades:
● Cool the mowing blade when
13.1)
sharpening, e.g. with water. The blade
must not be allowed to display blue
colouring, as this would reduce its
cutting quality.
● Sharpen blades evenly to prevent
vibration due to imbalance.
● The cutting angle of 30° must be
observed.
● Observe the wear limits when
sharpening.
Risk of injury!
The mowing blade must be
replaced if notches or cracks are
detected, or if the specifications
contained in the section "Checking
the wear limits" are exceeded.
Checking the balance of the mowing
blade
Insert a screwdriver 1 through the central
bore.
When mowing blade (2) is properly
balanced, it must balance in the position
illustrated.
Risk of injury:
If the mowing blade does not
balance, the procedure
"Sharpening the mowing blade"
must be repeated until the blade is
balanced.
The mowing blade may only be
balanced by means of sharpening
back or cutting.
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