Operator’s manual
Double-sided disc mowers
with central suspension
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5.6.
Preparing the mower for work
Put the mower into motion when the cutterbar is on the ground so that oil can fill the whole
cutterbar. When the mower is in working position, please do the following:
lower the cutterbar to the ground,
connect PTO shaft between tractor and mower,
by means of upper regulating bar of the mower, adjust the cutterbar’s height and inclination
towards the ground. Proper inclination of the cutterbar is between 0° and 5°. It is regulated by
extending or shortening the bar,
there is a possibility to operate either with or without belt conveyors (Fig 19a and 19b). If an
operator is willing to work without belt conveyors, they must be lifted by means of tractor’s
hydraulic system. Before lifting, the cotter pin must be unblocked,
slowly engage PTO clutch and wait until the cutting unit reaches its rated speed. DO NOT
exceed 950 ÷ 1000 rpm,
engage tractor gear and drive slowly into grass-field. Flat meadows can be mowed with any
speed. If the meadow is uneven reduce speed.
CAUTION:
Do not connect belt when conveyor is in vertical position (Fig. 19b).
Fig. 19. Operating either with or without belt conveyors
CAUTION:
DO NOT pull the cutterbar in other way (towards the tractor), because
it will lead to cutterbar’s premature wear or even its damage.
5.7.
Operation (mowing)
Dear operator,
If a disc mower is your first experience (you have mowed with 2-drum mower) you need
a piece of essential information:
1.
Main advantage of disc mowers is their small power demand – 20% less tractor power, small
moment of inertia and possibility to manufacture mowers with large working width.
2.
There is however a certain disadvantage - creased stubble, especially when it comes to lying
grass. Straight grass may be mowed with horizontal adjustment of the mower and then the
stubble will be even, but it will not look as attractive as with 2-drum or 4-drum mower, because
the knives work
horizontally to the ground and inclined grass bends because of wind blasts. After the grass is
mowed it gets up, which makes an impression of inaccurate mowing.
a)
b)
