Viking ME 235, Инструкция по эксплуатации

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11 .5 Mowing blade maintenance
Maintenance interval:
Before each use
● Tilt the lawn mower onto its side.
(
Ö 11.2)
● Clean mowing blade (1) and check it for
damage (notches or cracks) and wear;
replace if necessary.
● Check the blade thickness A at
several points using a slide calliper. In
particular, measure in the area of the
blade wings.
A > 1,6 mm
● Place a ruler (2) against the front blade
edge and measure permissible
grinding B .
B < 5 mm
11 .6 Removing and installing the
mowing blade
● Tilt the lawn mower onto its side to work
on the mowing blade. (
Ö 11.2)
1 Removing:
● Hold mowing blade (1) with one hand.
● Unscrew blade fastening screw (2) and
remove together with coupler (3) and
mowing blade (1).
2 Installing:
● Clean the blade contact surface,
coupler and blade bushing.
● Install mowing blade (1) on the blade
bushing with the curved wings pointing
upwards. Position guide pins (4) of the
blade bushing in the recesses in the
mowing blade.
● Hold mowing blade (1) with one hand
and fit coupler (3).
● Screw in blade fastening screw (2) and
tighten.
Tightening torque for blade fastening
screw:
15 - 20 Nm
11 .7 Sharpening the mowing blade
VIKING recommends having the mowing
blade sharpened by a technician.
Operation of the machine is impaired in the
case of an incorrectly sharpened blade
(incorrect sharpening angle, imbalance
etc.).
Sharpening instructions:
● Remove the mowing blade. ( Ö 11.6)
● Cool the mowing blade when
sharpening, e.g. with water. The blade
must not be allowed to display blue
colouring, as this would reduce its
cutting quality.
● Sharpen the blade evenly to prevent
vibrations due to imbalance.
● Observe sharpening angle of 30°.
● After sharpening, remove any
sharpening burr at the cutting edge
using fine sandpaper if necessary.
11 .8 Storage (winter break)
Store the machine in a dry and locked
place that is generally free of dust. Make
sure that it is kept out of the reach of
children.
Only store the lawn mower in good
operating condition, fold down the
handlebar if necessary.
Keep all nuts, pins and bolts tightly
fastened, replace danger signs and
warnings on the machine that have
become illegible, check the entire machine
for wear and damage. Replace all worn or
damaged parts.
Any machine faults must be completely
remedied prior to storage.
Note the following points when storing the
lawn mower for long periods (winter
break):
● Clean all external parts of the machine
with care.
Risk of injury!
Check the blade for damage before
each use. The blade must be
replaced if notches or cracks are
detected or if the wear limits are
reached or exceeded.
Risk of injury !
Always wear suitable gloves when
working on the mowing blade.
1 5
1 6
Risk of injury!
Before installing, check the
condition of the mowing blade
(damage, wear) and replace if
necessary. (
Ö
11.5)
The mowing blade must only be
installed as illustrated with the
curved wings pointing upwards
(towards the machine). Observe
the specified torque when
tightening the blade fastening
screw, as the secure attachment of
the cutting tool depends upon it.
Additionally secure the blade
fastening screw with
Loctite 243 .
Replace the blade fastening screw
and coupler each time the blade is
replaced.
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