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M2(W) / M3(W) / M6W
6
SPECIAL MAINTENANCE, Friction clutch
The transmission of the machine is equipped with friction/overload
clutch.
The friction clutch is a most important component protecting against
overload – and a damaged transmission / PTO- shaft.
The friction clutch protects especially the reversible gear system
of the Trend transmission. The Trend-system is based on an
inpact clutch.
The friction clutch must be maintained, and it must be checked,
that it is not corroded.
The friction clutch must ”slip” at START of the tractor PTO.
If the clutch does not slip – the transmission will be damaged.
The friction clutch ”slips” approx. 1-2 turns at START of the tractor PTO. This reduces
the load on the components of the transmission to approx. 1/10 of the load to which the
transmission is exposed, if the coupling is not able to ”slip”.
As principal rule the coupling must be separated and cleaned if
the machine has not been used for more than 6 months.
Alternatively minimum once a year.
It is always necessary to START the tractor PTO
”slowly / smoothly”!
GUIDANCE ON HOW TO CLEAN THE FRICTION CLUTCH.
Demount the 6 bolts of the clutch – and the clutch is
separated.
Clean all the ”slip sur-
faces” for rust (perhaps
with a wire brush) – and
reassemble the bolts.
If needed replace the
clutch plates.
The clutch surfaces should not
be greased with oil/grease!
The friction clutch’s bolts are tightened by a torque wrench:
The splined axle has to slip at:
60
N/m
180 – 220
N/m
2 coupling plates
BOLTS
Splined axle