Defects And Their Repairs - SaMASZ KDD 860 Operator's Manual

8. DEFECTS AND THEIR REPAIRS

Tab. 7. Defects and their repairs
Defect
Mower stops working
(partly)– leaves stripes of
uncut grass between the discs
The grass is wound on the
forming drums
Grass blocks the mower – lack
of grass flow or the flow is
uneven.
Safety device is working often
without clear reason
Mower does not work, even
though the drive is transmitted
from the tractor
Mower is blocked
Mower's hydraulics does not
work
Conveyor is being blocked
by grass
Leaking cylinder
Operator's manual
Reason
1 Lack of knives
2 Worn knives
Improperly mounted knives
3
(left – right)
4 Improper front inclination
Too high PTO rpm
5
(The most frequent mistake)
6 Too low work speed
7 Damaged tractor's PTO
8 Lying grass
Mower with either tine or roller conditioner may mow improperly in case of
very small grass or after the rain.
Mowing lying grass without inclination
towards the front.
Too low work speed
Worn elements of safety device or
improper regulation
Damaged intersecting axis gear
Damaged gears in the cutterbar.
Damaged bearings in the disc hub.
Damaged or dirty hydraulic cylinder
and check valve
Tractor's hydraulic system is damaged.
Too low a conveyor speed
Contaminated oil in the tractor
hydraulics
- 37 -
Double-sided disc mowers
with central suspension
Repair
Put on knives
Replace knives
Put on knives strictly acc. to
instructions.
Adjust inclination strictly acc. to
instructions
Reduce PTO rpm (recommended
1600-1800 rpm)
Speed up to V≥10 km/h
Repair
The inclination - the angle zero
Always mow low and fast –
inclination towards the front – 4 cm.
Speed up to
10 km/h or more.
This repair must be done by
SaMASZ service.
Replace intersecting axis gear
This repair must be done by
SaMASZ service.
Replace or clean hydraulic
connector and check valve.
Check tractor's hydraulic system.
Increase – adjust to the grass
weight
Replace oil in the tractor
hydraulics Provide brand new
cylinder repair kit and replace
worn gaskets