Viking MB 6 RH, Instuction Manual

Page: 48 / 544

When replacing the mowing
blade, always replace blade
fastening screw
(38) ,
clamping washer (51) and
lock washer (50) .
14 0478 111 9917 F - EN
NOTE
Note the removal sequence
of the parts and the instal-
lation direction.
Support 39 of the engine
shaft can be removed for
servicing purposes.
Sharpening the mowing
blade:
The following points must be
observed when re-sharpening
the mowing blade:
• Cool mowing blade with
water when sharpening.
The blades must not be
allowed to display blue
colouring, as this would
reduce the cutting quality.
Sharpening the blade
If mowing results deteriorate
with time, the mowing blade is
probably blunt.
18
CAUTION
Risk of injury.
Disconnect the spark plug
socket before performing
any maintenance or other
work on the blade. Do not
touch the blade until it has
come to a complete stand-
still.
Risk of injury!
Always wear glo-
ves.
Risk of injury!
Always wear glo-
ves.
Removing the mowing
blade:
For removal, use a
36= wooden block to coun-
terhold the
37= mowing blade.
(see illus.).
Loosen the
38= blade fastening screw
(remove the clamping
washer, lock washer,
and washer).
17
Mowing blade mainten-
ance
CAUTION
Risk of injury!
If you do not have the ne-
cessary expertise or auxi-
liary equipment, please
always contact a specialist
dealer. (VIKING recom-
mends VIKING specialist
dealers).
VIKING recommends the
use of original VIKING
spare parts.
Maintenance interval:
Before each use
Wear limits:
The blade thickness must be
at least 2 mm at any point.
(Check using slide calliper).
The blades may not be
ground back by more than
5 mm during sharpening.
When inspecting, place a
51= ruler against the front
blade edge and check for
wear.
CAUTION
Risk of injury!
A worn blade may break off
and cause serious injuries.
The instructions for blade
maintenance must therefore
always be observed.
Blades are subjected to dif-
fering degrees of wear de-
pending on the location and
duration of use. If you use
the mower on sandy ground
or use it frequently under
dry conditions, the blade will
be subjected to greater
loads and will wear more
quickly than the average.
Tilt the high grass mower
upwards into the
cleaning
position .
Clean
37= mowing blade and check
it for damage (notches or
cracks) and wear;
replace if necessary.