6
Machine body
The machine body is cast in magnesium alloy for high
strength and low weight. The block is conventionally
split into two crankcase halves.
The Partner K950 and K1250 Active feature an innova-
tive machine-body construction. The machines feature a
separate vibration-damped unit encompassing the fuel
tank, rear handle and machine base plate, to the front of
which the handle arch is attached. As a result, the mass
of the handle system is greater, which in turn reduces
vibration levels. Separation of the fuel tank from the
engine body keeps the fuel cool, eliminating disruptions
caused by vapour formation in the fuel system.
Ergonomic design
The K950 and K1250 Active are noted for the clean, slim
lines of their engine bodies and the absence of protru-
ding parts — all so the operator can work as comforta-
bly and safely as possible.
In normal cut-
ting operations,
the machine is
moved straight
back and forth
in the cutting
groove, and the
operator is
close to the
machine — in
some jobs even
maintaining
direct bodily contact with the machine. Protruding parts
on the machine body may easily force it off its intended
cutting line if the machine comes into contact with the
operator or an adjacent object. This is naturally a source
of irritation and may even constitute a safety hazard.
So Partner cutters owe their clean lines to functional
requirements — with the added bonus of an attractive
appearance.
Slim machine body
Both the K950 Active and the K1250 Active feature a
machine body with minimum width, placing the centre of
gravity near the operator. This property is of utmost
importance to operating comfort and when carrying the
machine.
Surface treatment
The machine body is powder-painted, which means that
no solvents are used. Powder paint is sprayed onto the
machine body, which is electrostatically charged, to pro-
duce a uniform coating which penetrates everywhere.
The parts are then baked in an oven and the powder
paint melts to form a thick surface layer which is durable
and resistant to mechanical wear.
Crankcase bearing
The crankcase has sturdily dimensioned ball-bearings.
These are lubricated by the two-stroke oil mixed in the
fuel. The crankshaft’s sealing rings can be replaced from
outside the machine.
Crankshaft/
connecting rod
The crankshaft and
connecting rod are
forged and case-har-
dened to ensure top
strength and durabili-
ty. The connecting rod
has needle bearings
on the crankshaft.
Fuel tank
The fuel tank is integrated with the vibration-damped
handle unit, thus minimising heat transfer from the
crankcase.
Tank volume is sufficient for about 25 – 30 minutes of
operation.
Fuel filter
The pick-up, which also has a fuel
filter, always remains at the bottom
of the tank so the cutting machine
is always assured of its supply of
fuel irrespective of the angle of
operation.
The filter design is new. It is
made of sintered polyethylene
plastic which filters out the smal-
lest particles. Its high filtration efficiency reduces wear
on the carburettor’s moving parts. The filter surface is
smooth and repels dirt. The filter-replacement interval
has thus been increased several times over.
Refuelling
The Partner designers have chosen to position the fuel
filler in line with the machine body so as to avoid protru-
sions which may get in the way during cutting opera-
tions. The tank cover hangs securely from the machine
during refuelling.
In order to
avoid spillage
for environmen-
tal and safety
reasons while
refuelling, we
recommend the
type of fuel-can
which features
an overfill valve.
