Operating The Lawn Mower - Stihl RM 4.0 RV Instruction Manual

11 Operating the Lawn Mower

► Measure the following:
– Thickness a
– Width b
– Sharpening angle c
► If the minimum thickness or minimum width is
fallen below: replace the blade,
► If the sharpening angle is not correct: sharpen
the blade, 19.2.
► If anything is unclear: consult a STIHL special‐
ist dealer.
11 Operating the Lawn Mower
11.1 Holding and Guiding the Lawn
Mower
► Hold the handlebar with both hands so the
thumbs enclose the handlebar.
11.2 Setting the Cutting Height
Five cutting heights can be set:
– 30 mm = position 1
– 40 mm = position 2
– 50 mm = position 3
– 60 mm = position 4
– 70 mm = position 5
Setting the cutting height
► Stop the engine.
The blade must not be turning.
► Place the lawn mower on a level surface.
0478-111-9656-A
► Press lever (1) outwards towards the rear
wheel and hold in position.
► Move lever (1) to the desired position (2) and
allow it to engage.
11.3
19.2.
11.3.1
NOTICE
► To avoid damage to the machine, only
actuate the Vario drive lever when the
engine is running.
► Place the lawn mower on a level surface.
► Start the engine.
► Pull control bar for self-propulsion (1) fully in
the direction of the handlebar and hold so the
thumb encloses the handlebar.
The lawn mower starts moving.
Increasing the driving speed:
► Push Vario drive lever (2) forwards towards
when driving.
Reducing the driving speed:
► Push Vario drive lever (2) rearwards towards
11.3.2
► Release the control bar for self-propulsion.
► Wait until the lawn mower comes to a stand‐
still.
11.4
During mulching, the cut grass is chopped up
several times through a special air flow guidance
system in the mower blade area and then blown
Switching the Drive On and Off
Engaging Self-propulsion
when driving.
Disengaging Self-propulsion
Mulching
English
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