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0478 111 9953 B - EN
14.5 Sharpening the mowing blade
STIHL 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. ( 14.4).
● 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 the sharpening angle of 30°.
● After sharpening, remove any
sharpening burr at the cutting edge
using fine sandpaper if necessary.
● Observe the wear limits. ( 14.3)
14.6 Engine
Maintenance interval:
See engine instruction manual.
General information:
Observe the operating and maintenance
instructions contained in the attached
engine instruction manual.
To achieve a long service life, it is always
particularly important to maintain a
sufficient level of oil and to change the oil
and air filter regularly.
The recommended oil change intervals as
well as information on engine oil and oil
capacities can also be found in the engine
instruction manual.
The cooling ribs must always be kept clean
to ensure that the engine is adequately
cooled.
14.7 Battery and charger maintenance
Maintenance interval:
See engine instruction manual.
14.8 Wheels and gearbox
The wheel bearings are maintenance-free.
The gearbox is maintenance-free.
14.9 Lawn roller maintenance
The drive chain must be regularly
lubricated, the ball bearings and
rollers are maintenance-free.
Maintenance interval:
Once annually or as required
● For servicing purposes, remove
screw (1, Torx 25) and remove
cover (2).
● Lubricate the drive chain using a
commercially available grease.
14.10 Blade brake clutch (RM 650 VS,
RM655RS, RM655VS, RM655YS)
Maintenance interval:
Once a year
The blade brake clutch (BBC) is subject to
natural wear.
It may only be maintained by trained
personnel. STIHL recommends STIHL
specialist dealers.
14.11 Adjusting the self-
propulsion cable (RM 655 YS)
Maintenance interval:
Prior to initial use or as required
Adjustment of the cable is necessary
– before the machine is operated for the
first time
– 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
● Pull driving speed lever (1) all
the way back.
● Loosen nuts (2, 3) to release
the tension on cable (4).
● Start the engine. ( 13.5)
● Pull the self-propulsion lever to the
handlebar and hold. ( 13.9)
● Tension cable (4) using nut (3) until
self-propulsion is activated. Then
release the self-propulsion lever, stop
the engine and tighten nut (2).
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