Operator’s manual
Double-sided mower with central
suspension
“REWERS”
- 29 -
5.8.1. Regulation of cutterbar's pressure on the ground by means of support springs
Pressure on the ground is regulated by changing the tension of support springs.
Decreasing the pressure of the cutterbar on the ground is done together with increasing the
tension of the support springs by moving the the lock in the next hole on the rod towards the springs
(
Fig. 26
). Increasing the cutterbar's pressure on the ground is caused by decresing the tension of
support springs by moving the lock towards the rod's end.
Regulation may only be performed when the machine is in vertical position (
Fig. 28
).
Fig. 26.
Regulation of support springs
CAUTION:
Improper unloading of the mower's cutting unit will cause increased pressure
of the bar onto the ground which may result in: faster wearing of toppings,
overloading of the cutterbar, increasing fuel consumption, damaging the turf
and causing contamination to the forage.
5.9.
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.
Every mower may leave stripes of uncut grass when it comes to the knives which cut the grass
towards the grass direction.
It is a normal phenomenon. Practically, it is not possible to achieve such attractive stubble as in
2-drum mowers, because the knives work horizontally or at an angle of up to 8° to the ground,
and when it comes to 2-drum and 4-drum mowers slantwise through the ground (even 23°).
Despite these ‘disadvantages’, disc mowers are ‘winning farmers’ trust’ and modern
technologies give an opporunity to manufacture very durable mowers (even up to 1000%).