Sharpening The Mowing Blade; Cable Maintenance; Storage And Periods Of Inoperation (Winter Break) - Viking MB 756 GS Manual De Instrucciones

Risk of injury!
The prescribed tightening torque
must be observed.
Retaining washer (3) must be
replaced each time the blade is
installed.
Blade fastening screw (2) must be
renewed each time the blade is
replaced.

11.8 Sharpening the mowing blade

If mowing results deteriorate over time,
this is usually the result of a blunt mowing
blade.
The following points must be noted when
resharpening:
● Remove the mowing blade. (
● 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 blades evenly to prevent
vibration due to imbalance.
● The cutting angle of 30° must be
observed.
● Observe the wear limits when
sharpening.
● Remove any sharpening burr.

11.9 Cable maintenance

The throttle cable and the blade brake
clutch cable must only be maintained by
trained personnel. VIKING recommends
VIKING specialist dealers.
0478 111 9925 C - EN
Adjusting the hydro self-
propulsion cable
MB 756 YS, MB 756 YC
Maintenance interval:
As required
Adjustment of the cable is necessary
– if the maximum speed is not achieved
– if self-propulsion is permanently
engaged. This means that the lawn
mower automatically begins to move
when the recoil starter rope is pulled,
despite the self-propulsion lever not
being actuated.
Adjusting the cable
● Push driving speed lever (1)
fully forwards.
11.7)
● Adjust cable (2) using the two
nuts (3, 4).
When correctly adjusted, the cable is
tensioned slightly and pin (5) is
positioned right at the bottom of
guide (6). The machine can be pulled
back - the wheels do not block.
Adjusting the gearshift cable
MB 756 GS
Maintenance interval:
As required
Adjustment of the cable is necessary
– if the individual gears cannot be
engaged.
Adjusting the cable
● Tighten the cable (1) with the two
nuts (2, 3) on the underside of the
handlebar so that all three gears can be
correctly engaged.
Adjusting the self-propulsion
cable
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MB 756 GS
Maintenance interval:
As required
Adjustment of the cable is necessary
– if self-propulsion is not activated when
the self-propulsion lever is operated.
– if self-propulsion is permanently
engaged. This means that the lawn
mower automatically begins to move
when the recoil starter rope is pulled,
despite the self-propulsion lever not
being actuated.
Risk of injury!
The self-propulsion cable must be
correctly adjusted before the
machine is operated.
Checking the cable tension:
1. Engage 3rd gear and pull the recoil
starter rope – the lawn mower is not
driven.
2. Pull the self-propulsion lever to the
handlebar and hold, pull the recoil
starter rope - the lawn mower is driven.
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Adjusting the cable:
● Tighten the cable (1) with the two
nuts (2, 3) on the underside of the
handlebar so that self-propulsion is
activated at about half the travel of the
self-propulsion lever.
11.10 Storage and periods of
inoperation (winter break)
Store the machine in a dry, locked, dust-
free place. Make sure that it is out of the
reach of children.
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