Operator’s manual
Double-sided disc mowers
with central suspension
- 32 -
slowly engage the mower drive until cutting discs reach their nominal PTO rotating speed of
950 - 1000 rpm.
start control panel,
lift up mower on tractor's 3-point linkage to eject cylinder rod to maximum,
then press button (4)
on control panel to set pressure in hydropneumatic assembly,
using tractor's hydraulic valve lever, set the pressure until mower's cutterbar is slightly
chattered,
turn off button (4)
on control panel,
set mower in working position.
engage tractor gear and start mowing. Flat meadows can be mowed at any driving speed,
however, as unevenness occurs, the speed should be reduced.
Increasing pressure results in lower impact on the ground.
Reducing pressure results in bigger impact on the ground.
IMPORTANT:
If the pressure supporting the assembly of the cutterbars is too high, the
cutterbars will not be able to lowered
.
.
NOTE: Too low a pressure in suspension disables the machine to be set in transport
position. If locking pawl does not catch when mower is being switched to transport
position, then increase pressure in suspension.
NOTICE:
Improperly relieved cutting unit of the mower will cause increase of
cutterbar pressure on the ground which will lead to faster wear of sliding
skids, overload of cutterbar, higher fuel consumption, damage to the stubble
and contamination of the fodder.
5.7.
Preparing the mower for work
Put the mower into operation 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:
be sure cutterbar is on 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,
you can operate either with or without belt conveyors (Fig. 25) If an operator is willing to
work without belt conveyors, they must be lifted by means of the 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. Tractor's engine rpm should be considerably lower, so that the fuel
consumption could be reduced,
engage tractor gear and drive slowly into grass field. Flat meadows can be mowed with any
speed. If the meadow is uneven, reduce speed.
WARNING:
Do not operate the conveyor when it is in vertical position.
